john deere 170 skid steer loader service manual€¦ · john deere model: 170 skid steer this is a...

John Deere

MODEL:

170 Skid Steer

THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF JOHN DEERE OR IT'S SUCCESSORS. JOHN DEERE AND IT'S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

JD-S-TM107S

http://www.jensales.com/products/john-deere-170-skid-steer-loader-service-manual.html

170 SKID-STEER LOADER TECHNICAL MANUAL

TM-1075 (Jul-74)

CONTENTS

SECTION 10 - GENERAL Group 5 - Specifications Group 10 - Predelivery, Delivery, and After Sales

Service Group 15 - LoaderTune-Up Group 20 - Lubrication

SECTION 20 - ENGINE Group 5 - Diagnosing Engine Malfunctions Group 10 Basic Engine Group 15 - Repair, Assembly, and Adjustments

of Engine Group 20 - Specifications and Special Tools

SECTION 30 - FUEL SYSTEM Group 5 - Diagnosing Fuel System Malfunctions Group 10 - Carburetor Group 15 - Fuel Filter, Strainer and Pump Group 20 - Specifications

SECTION 40 - ELECTRICAL SYSTEM Group 5 - Diagnosis Group 10 - Battery and Wiring Diagrams Group 15 - Charging System Group 20 - Ignition System Group 25 - Starting Motor Group 30 - Specifications and Special Tools

SECTION 50 - POWER TRAIN Group 5 - Diagnosing Power Train Group 10 - Power Train Flow Group 15 - Gearbox Group 20 - Hydraulic Variable Drive Sheave Group 25 - Variable Drive Shaft Assembly Group 30 - Clutch Group 35 - Center Reduction Gear Assembly Group 40 - Axle Group 45 - Drive Chains Group 50 - Specifications and Special Tools

SECTION 60 - STEERING AND BRAKES Group 5 - Steering Group 10 - Brakes Group 15 - Specifications

SECTION 70 - HYDRAULIC SYSTEM Group 5 - Diagnosis Group 10 - Hydraulic Pump Group 15 - Hydraulic Control Valves Group 20 - Variable Speed Valves Group 25 - Hydraulic Cylinders Group 30 - Specifications and Special Tools

SECTION 80 - ALPHABETICAL INDEX

All information, illustrations and specifications contained in this technical manual are based on the latest information available at the time of publication. The right is reserved to make changes at any time without notice.

SI (International System) Units of Measure

Metric equivalents have been included, where applicable, throughout this technical manual.

FOR YOUR CONVENIENCE

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/'

Loader, Skid-Steer - 170 TM-1075 (Jul-74)

General 10 Specifications 5-1

Section 10 GENERAL

CONTENTS OF THIS SECTION

Page

GROUP 5 SPECIFICATIONS Loader Specifications .................... 5-2

GROUP 10 PREDELIVERY, DELIVERY, AND AFTER SALES SERVICES

Predelivery Service. . . . . . . . . . . . . . . . . . . .. 10-1 Delivery Service ............. . . . . . . . . .. 10-1 After-Sales Service ..................... 10-2

LOADER DE.SIGN

Fig. 1-170 Skid-Steer Loader

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Page

GROUP 15 LOADER TUNE UP Loader Tune Up ....................... 15-1

GROUP 20 LUBRICATION Lubrication Chart ...................... 20-1 Engine Lubricating Oil ................... 20-1 Hydraulic Oil .......................... 20-2

Group 5 SPECIFICATIONS

The John Deere 170 Skid-Steer Loader is a 1700-pound capacity, self-propelled, four-wheel drive loader used for various material handling operations. It also has the ability to maAeU..ver in small, tight areas.

All references in this manual to front, rear, lefthand and right-hand are in relation to the position of the operator seated in the operator's station.

SERIAL NUMBERS The serial number plate is located on the right

hand side; inside the frame under the boom pivot.



General 10 Specifications 5-3

BUCKET SPECIFICATIONS

REGULAR BUCKETS Width Height

Dirt 65" (1.65m) 1S-5/S/I (47.31cm) Produce 72" (1.S3m) 2S/I (71.12cm) Light Materials 67" (1.70m) 22-7/S" (5S.10cm) Fertilizer 65/1 (1.65m) 21-3/S" (54.29cm) Utility 65" (1.65m) 20-1/S" (51.12cm) Manure Bucket 65" (1.65m) 1S-7/S" (47.94cm)

QUIK-TATCH BUCKETS Width Height

Dirt 65" (1.65m) 20" (50.S0cm) Light Materials 73" (1.S5m) 27-3/4" (70.49cm) Light Materials 67" (1.70m) 25-3/4" (65.41 cm) Fertilizer 65/1 (1.65m) 23-3/16" (5S.90cm) Utility 65" (1.65m) 20" (50.S0cm) Quik-Tatch Bar

PALLET FORKS

Width .............................. 43/1 (1.092m) Weight

53 ( 1

Quik-Tatch Mounting Frame ... 290 Ibs. (13.54kg) Standard Mounting Frame ..... 115 Ibs. (5.23kg) Forks (two) 36/1 (91.44cm) ..... 150 Ibs. (6.80kg) Forks (two) 46/1 (122.84cm) .... 170 Ibs. (7.71 kg)

TURNING RADIUS

,.,.......----- ...........

/ '" / " / ~ Tlii{ ( 1~

1r7= ILl 5 I FI~ . IT/4 I -3/4 HI.

~~ ill~ ~ (1.64 m) I .36 m) 0 I II

\ 3 FT.l/2 I

(1~111 em) ,~

In

N.

N.

\ 55-1/2" 0:40 m) ./ "- CLEARANCE / "- CIRCLE RADIUS / '-.. " 1 / ....... .-/ -- ---• 92-3/4"

G588? (2.35 m)

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Capacity Cu. Ft.

10.0 (0.28m3) 15.0 (0.425m3) 20.2 (3/4 yd.) (0.57m3) 15.3 (0.43m3) 12.5 (0.35m3)

Capacity Cu. Ft.

10.5 (0.297m3) 25.5 (1 yd.) (0.722m3) 20.2 (3/4 yd.) (0.57m3) 15.3 (0.43m3) 12.5 (0.35m3)

Wt. Lbs.

335 (14.99kg) 405 (1S.37kg) 455 (20.65kg) 400 (1S.14kg) 3S0 (17.24kg) 375 (17.01 kg)

Wt. Lbs.

415 (1S.S2kg) 465 (21.09kg) 415 (1S.S2kg) 420 (19.05kg) 402 (1S.23kg) 100 (4.536kg)



Engine 20 Diagnosing Engine Malfunctions 5-1

Section 20 ENGINE

CONTENTS OF TH IS SECTION

GROUP 5 - DIAGNOSING ENGINE MALFUNCTIONS

Page

Diagnosing Engine Malfunctions ........... 5-2 Valves ................................ 5-6 Piston Rings ........................... 5-7 Pistons ............................... 5-9

GROUP 10 - BASIC ENGINE

Removal ............................. 10-1 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . .. 10-2

GROUP 15 - REPAIR, ASSEMBLY, AND ADJUSTMENT OF ENGINE

Assembly ............................ 15-1 Oil Seals ............................. 15-1 Bearings ............................ , 15-2 Pistons, Rings, and Cylinders ............. 15-2 Connecting Rods ....................... 15-3 Governor. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15-4 Oil Pump ............................. 15-5 Crankshaft Gear ....................... 15-5 Timing Gears .......................... 15-5 Valves, Stem Guides, and Tappets ......... 15-6 Cylinder Heads ........................ 15-7 Crankcase Breather .................... 15-7 Engine Installation ..................... 15-8

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GROUP 20 - SPECIFICATIONS AND SPECIAL TOOLS

Page

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 20-1 Torque Values ......................... 20-2 Tools ................................ 20-2 Rebuilt Engine Break-I n ................. 20-3



Engine 20 Basic Engine 10-1

Group 10 BASIC ENGINE

REMOVAL OF ENGINE FROM LOADER

Fig. 1-Removing Counterweights

1. Swing the two top counterweights out as shown in Fig. 1.

2. Remove the bottom counterweight by removing four nuts.

3. Loosen clamp and remove hose from carburetor intake.

Fig. 2-Removal of Heat Shield

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4. Remove two nuts and cap screws from the top of the heat shield (Fig. 2).

5. Loosen clamp and remove hose from air cleaner.

6. Remove four cap screws and remove the heat shield.

Fig. 3-Removal of Engine Connections

7. Disconnect the wire harness (Fig. 3).

8. Disconnect the throttle and choke cables from the carburetor.

9. Remove positive battery cable from the starter solenoid.

10. Remove the negative battery cable. (It is located at the base of the engine.)

11. Remove the fuel line from the fuel pump.

12. Remove drive chain from drive coupler.



Fuel System 30 Diagnosis 5-1

Section 30

FUEL SYSTEM


GROUP 5 - DIAGNOSI NG FUEL SYSTEM MALFUNCTIONS

Page

Diagnosing Fuel System Malfunctions ....... 5-2

GROUP 10 - CARBURETOR Removing Carburetor ................... 10-1 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . .. 10-2 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-4 Adjusting Float Level ................... 10-5 Assembly ............................ 10-5 Installation ........................... 10-5 Adjusting Carburetor ................... 10-6

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GROUP 15 - FUEL FILTER, STRAINER, AND PUMP

Page

Fuel Filter and Fuel Strainer. . . . . . . . . . . . .. 15-1 Fuel Pump

Inspection . . . . . . . . . . . . . . . . . . . . . . . . .. 15-1 Removal ........................... 15-1 Reconditioning ...................... 15-2

GROUP 20 - SPECIFICATIONS Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 20-1 Torque Values ......................... 20-1


Loader, Skid-Steer - 170 TM-1075 (Jul-74J

Electrical System 40 Diagnosing Electrical System 5-1

Section 40

ELECTRICAL SYSTEM CONTENTS OF THIS SECTION

Page

GROUP 5 - DIAGNOSIS

Diagnosing Electrical System .............. 5-2

GROUP 10 - BATTERY AND WIRING DIAGRAMS

General Information . . . . . . . . . . . . . . . . . . .. 10-1 Battery

Servicing and Replacing Battery ........ 10-1 Danger Connected with Batteries. . . . . . .. 10-1 Connecting Battery ................... 10-2 Cleaning Batteries ................... 10-2 Connecting Booster Batteries ........... 10-2

Wiring Diagrams External Alternator ..... . . . . . . . . . . . . .. 10-3 I nternal Alternator ................... 10-4 Wiring Diagram (lights) ............... 10-5

GROUP 15 - CHARGI NG SYSTEM

General Information . . . . . . . . . . . . . . . . . . .. 15-1 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15-1 External Alternator Wiring and

Component Tests .................... 15-2 Removal of External Alternator From

the Loader . . . . . . . . . . . . . . . . . . . . . . . . .. 15-7 Disassembly of External Alternator ........ 15-7 Inspection (External Alternator) . . . . . . . . .. 15-13 Assembly (External Alternator) ........... 15-14 Removal of External Sealed Alternator

from the Loader ..................... , 15-17 Disassembly of External Sealed Alternator 15-18 Inspection (External Sealed Alternator) ... , 15-21 Assembly (External Sealed Alternator) .... 15-22 Flywheel Alternator (Internal)

Inspection ............................ 15-25 Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15-25 Removal of Stator and Rotor.......... 15-26

Installing External Alternator Kit . . . . . . . . .. 15-27 Installing External Sealed Alternator Kit. .. 15-29

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Page

GROUP 20 - IGNITION SYSTEM

Principles of Operation .................. 20-1 General Information

Ignition Coil ......................... 20-2 Breaker Points ...................... 20-2 Condenser. . . . . . . . . . . . . . . . . . . . . . . . .. 20-2 Spark Plug .......................... 20-3

Distributor Timing ...................... 20-3 Setting of Breaker Points to Timing .... : ... 20-4 Spark Advance Timing .................. 20-5 Spark Plugs ........................... 20-5

Diagnosing Malfunctions .............. 20-6 Testing

Coil ............................... 20-8 Condenser .......................... 20-8 Spark Plug .......................... 20-9

GROUP 25 - STARTING MOTOR

General Information .................... 25-1 Removal ............................. 25-1 Testing and Diagnosing ................. 25-1 Repairing Starter ....................... 25-2

Checking Armature ................... 25-5 Checking Brushes .................... 25-5 Checking Field Coils .................. 25-6

Assembly ............................ 25-6

GROUP 30 - SPECIFICATIONS AND SPECIAL TOOLS

Specifications Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1 Spark Plugs ......................... 30-1 Breaker Points ...................... 30-1 Electrical System .................... 30-1

Torque Values Alternator .......................... 30-1 Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1

Special Tools .......................... 30-1


Loader, Skid-Steer - 170 TM-107S (Ju/-74)

Power Train 50 Diagnosing Chain Drive System Malfunctions 5-1

Section 50

POWER TRAIN CONTENTS OF TH IS SECTION

Page Page

GROUP 5 - DIAGNOSING POWER TRAIN GROUP 30 - CLUTCH Diagnosing Chain Drive System Malfunctions 5-2

GROUP 10 - POWER TRAIN FLOW Power Train Flow ...................... 10-1

GROUP 15 - GEARBOX General Information .... . . . . . . . . . . . . . . .. 15-1 Removing Gearbox from the Loader ........ 15-1 Disassembly of Gearbox ................. 15-2 I nspection of Gearbox .................. 15-4 Assembly

Loaders up to Serial Number 000375 ..... 15-5 Loaders Serial Number 000376 and up 15-9

GROUP 20 - HYDRAULIC VARIABLE DRIVE SHEAVE

Operation ............................ 20-1 General Information .................... 20-3 Removal ............................. 20-3 Disassembly ............................. 20-4

Loader Serial No. ( -xxxxxx) ...... 20-4 Loader Serial No. (xxxxxx- ) ...... 20-7 Rotor Union ........................... 20-8

Aligning Drive Belt ...................... , 20-8 Tightening Drive Belt ..................... 20-9 Replacing Drive Belt ... . . . . . . . . . . . . . . . . .. 20-9

GROUP 25 - VARIABLE DRIVE SHAFT ASSEMBLY

General Information .................... 25-1 Left-Hand Shaft

Removal ........................... 25-1 Disassembly of Spring-Loaded Sheave ... 25-4 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . 25-4 Assembly of Spring-Loaded Sheave ...... 25-4 Installation ......................... 25-4

Right-Hand Shaft Removal ........................... 25-5 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . 25-5 Installation ......................... 25-5

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General Information .................... 30-1 Removal of Clutch Packs ................ 30-1 Removal of Drive Cup and Hub ............ 30-2 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-4 Assembly

Clutch Pack ......................... 30-5 Hub and Drive Cup ................... 30-5

Adjusting Drive Clutches ................. 30-6

GROUP 35 - CENTER REDUCTION GEAR ASSEMBLY

General Information .................... 35-1 Removal ............................. 35-1 Disassembly .......................... 35-3 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-3 Assembly ............................ 35-3 Installation ........................... 35-3

GROUP 40 - AXLE General Information . . . . . . . . . . . . . . . . . . . . 40-1 Removal ............................. 40-1 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-4 Assembly ............................ 40-4

GROUP 45 - DRIVE CHAINS General Information .. . . . . . . . . . . . . . . . . .. 45-1 Tightening Drive Chains ................. 45-1

GROUP 50 - SPECI FICATIONS AND SPECIAL TOOLS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 50-1 Torque Values ......................... 50-1 Special Tools .......................... 50-1


50 20-8

Power Train Hydraulic Variable Drive Sheave

ASSEMBLY OF VARIABLE DRIVE SHEAVE Loaders Serial No.

(XXXXXX- )

Follow disassembly steps in reverse. (See pages 50-20-7 and 50-20-8.)

INSTALLATION OF VARIABLE DRIVE SHEAVE Loaders Serial No.

(XXXXXX- )

Follow removal steps in reverse (see page 50-20-3).

DISASSEMBLY OF ROTOR UNION

1-Copper Bushing 2-Snap Ring 3-Rotor 4-Floating Seal

5-0-Ring 6-Seal Guide 7-Spring 8-Rotor Seal Housing

Fig. 13-Exploded View of Rotary Union

Refer to Fig. 13 and do the following:

1. Remove snap ring (2) from the rotor seal housing (8) using internal-type snap ring pliers.

2. Remove rotor (3) from the housing (8).

3. Remove floating seal (4), O-ring (5), seal guide (6) and spring (7) from shaft inside the housing (8).

4. If leakage is noted, replace the rotor and seal assembly which are available in a repair kit (GG-190-20654).

ASSEMBLY OF ROTOR UNION

Follow steps of disassembly in reverse (see above).

INSTALLATION OF ROTOR UNION

Follow steps of removal in reverse (see page 50-20-3).

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ALIGNING DRIVE BELT

Fig. 14-Aligning Drive Belt

Place a straight edge along the fixed half of the drive sheave extending it toward the driven sheave but not touching the driven sheave. Clamp it to the drive sheave. Place another straight edge along the fixed half of the driven sheave but not touching the drive sheave. Clamp it to the driven sheave.

Measure the distance between the two straight edges at both ends. Both measurements should be 2-3/4 inches (6.98 cm).



Steering and Brakes 60 Steering 5-1

Section 60

STEERING AND BRAKES


Page Page

GROUP 5 - STEERING GROUP 15 - SPECIFICATIONS

Steering ............................... 5-1 Specifications . . . . . . . . . . . . . . . . . . . . . . . .. 15-1

GROUP 10 - BRAKES

General Information . . . . . . . . . . . . . . . . . . .. 10-1 Brake Adj ustment . . . . . . . . . . . . . . . . . . . . .. 10-1 Brake Pedal Adjustment ................. 10-2 Bleeding the Brakes . . . . . . . . . . . . . . . . . . .. 10-2 Brake Shoe Replacement. . . . . . . . . . . . . . .. 10-3 Wheel Cylinder

General Information . . . . . . . . . . . . . . . . .. 10-4 Removal ........................... 10-4 Inspection . . . . . . . . . . . . . . . . . . . . . . . . .. 10-4 Assembly .......................... 10-4 I nstaliation ......................... 10-4

Master Cylinder Removal ........................... 10-4 Disassembly . . . . . . . . . . . . . . . . . . . . . . .. 10-5 Inspection . . . . . . . . . . . . . . . . . . . . . . . . .. 10-5 Assembly .......................... 10-5 I nstaliation ......................... 10-5

Parking Brake Lock General Information . . . . . . . . . . . . . . . . .. 10-6 Operation of Brake Lock ............... 10-6 Service of Brake Lock ................ 10-6

GENERAL INFORMATION

The steering of the loader is accomplished through a gearbox and chain drive system. Refer to Section 50 for operation and service.

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Group 5

STEERING



Hydraulic System 70 Diagnosing Hydraulic System Malfunctions 5-1

Section 70

HYDRAULIC SYSTEM CONTENTS OF THIS SECTION

Page

GROUP 5 - DIAGNOSIS

Diagnosing Hydraulic System Malfunctions ... 5-2 Hydraulic System Diagram ................ 5-4

GROUP 10 - HYDRAULIC PUMP

General Information . . . . . . . . . . . . . . . . . . .. 10-1 Removal ............................. 10-1 Disassembly .......................... 10-2 I nspection and Repair ................... 10-3 Assembly ............................ 10-5 Installation ........................... 10-6 Hydraulic Oil Filter

Vacuum Gauge ...................... 10-7 Removal ........................... 10-7 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-7

Filter Fitting Kit ........ . . . . . . . . . . . . . . . . .. 10-8 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-8 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . .. 10-8 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-9

GROUP 15 - HYDRAULIC CONTROL VALVES

Operation ............................ 15-1 Removal ............................. 15-6 Disassembly

Left-hand Control Valve ............... 15-7 Right-hand Control Valve .............. 15-9

Inspection. . . . . . . . . . . . . . . . . . . . . . . . . .. 15-10 Assembly ........................... 15-11 Installation .......................... 15-11 Checking Hydraulic Relief Pressure ....... 15-12

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Page

GROUP 20 - VARIABLE SPEED VALVE

Operation ............................ 20-1 Removal ............................. 20-6 Disassembly .......................... 20-7 Inspection ........................... 20-10 Assembly ........................... 20-10 Installation .......................... 20-10

GROUP 25 - HYDRAULIC CYLI NDERS

Removing Lift Cylinder .................. 25-1 Removing Tilt Cylinder .................. 25-1 Disassembly .......................... 25-2 Inspection ............................ 25-3 Assembly ............................ 25-3 Installation ........................... 25-4 Adjusting Lift Cylinder Stop .............. 25-4

GROUP 30 - SPECI FICATIONS AND SPECIAL TOOLS

Specifications ......................... 30-1 Torque Values ......................... 30-1 Special Tools .......................... 30-1


Loader, Skid-Steer - 170 TM-1075 (Jul-74) Alphabetical Index 1

Section 80 ALPHABETICAL INDEX

Page A

Adjustment Brake Pedal .......................... 60-10-2 Brakes ................. . . . . . . . . . . . . .. 60-1 0-1 Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . . .. 30-10-6 Carburetor Float....................... 30-10-5 Clutch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-30-6 Gearbox to Engine . . . . . . . . . . . . . . . . . . .. 20-15-9

After Sales Service........ . . . . . . . . . . . . .. 10-10-2 Aligning Drive Belt ...................... 50-20-5 Alignment, Engine and Gearbox Couplings 20-15-9 Alternator, External

Assembly ............................ 40-15-14 Cleaning of Slip Rings ................ 40-15-14 Disassembly .......................... 40-15-7 Inspection ........................... 40-15-13 Installation of Kit ..................... 40-15-27 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 40-15-7 Removal of Slip Rings ................ 40-15-12 Removing Brushes .................... 40-15-7 Removing Isolation Diode .............. 40-15-8 Testing Brushes ....................... 40-15-8 Testing Negative Diodes .............. 40-15-10 Testing Positive Diodes ............... 40-15-10 Testing Rotor Windings ............... 40-15-12 Testing Stator ........................ 40-15-10

Alternator, External, Sealed Adjusting Alternator Belt Tension ...... 40-15-24 Alternator System Tests .............. 40-15-17 Assembly ............................ 40-15-22 Assembly Stator to Rear Housing ..... 40-15-23 Brush Assembly Insulation and

Continuity Tests .................... 40-15-21 Description and Operation ........... . 40-15-17 Diode Inspection and Repair .......... 40-15-21 Diode Removal and Installation ........ 40-15-21 Diode Tests ......................... 40-15-21 Disassembly ......................... 40-15-18 Installing Alternator ................... 40-15-24 Installing Brush Assembly ............. 40-15-24 Installing Diode Plate ................. 40-15-23 Installing Kit ......................... 40-15-29 Installing Pulley ...................... 40-15-24 Installing Rear Bearing ............... 40-15-23 Removing and Cleaning Brushes ...... 40-15-18 Removing Diode Plate ................ 40-15-20 Removing External Sealed Alternator

from Loader . . . . . . . . . . . . . . . . . . . . . .. 40-15-17

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Page Removing Front Bearing .............. 40-15-20 Removing Pulley ..................... 40-15-19 Removing Rotor ...................... 40-15-20 Removing Stator . . . . . . . . . . . . . . . . . . . .. 40-15-19 Removing Rear Bearing .............. 40-15-21 Rotor (Field) Test .................... 40-15-22 Separating Housings .................. 40-15-19

Alternator, Flywheel (Internal) Inspection ........................... 40-15-25 Rectifier Module Tests ................ 40-15-26 Regulator Module Tests .............. 40-15-26 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-10-5 Stator Tests .... . . . . . . . . . . . . . . . . . . . .. 40-15-25

Armature, Checking Starting Motor ....... 40-25-5 Axle

Assembly ............................. 50-40-4 General Information ................... 50-40-1 Inspection ............................ 50-40-4 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-40-1

B Battery

Cleaning .............................. 40-10-2 Connecting Battery .................... 40-10-2 Connecting Booster Battery . . . . . . . . . . .. 40-10-2 Dangers Connected with Batteries ...... 40-10-1 Replacing ............................. 40-10-1 Servicing ............................. 40-10-1

Bearing End Plate Installation . . . . . . . . . . .. 20-15-2 Bearings

Camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-15-2 Connecting Rod....................... 20-15-3 Crankshaft, Main . . . . . . . . . . . . . . . . . . . . .. 20-15-2

Bleeding Brakes ......................... 60-10-2 Block, Cylinder

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-10-9 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-15-3

Brakes Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . .. 60-10-1 Bleeding .............................. 60-10-2 General Information ................... 60-10-1 Master Cylinder ....................... 60-10-4 Parking Brake Lock ...... . . . . . . . . . . . .. 60-10-6 Pedal Adjustment ..................... 60-10-2 Shoe Replacement . . . . . . . . . . . . . . . . . . .. 60-10-3 Specifications . . . . . . . . . . . . . . . . . . . . . . . .. 60-15-1 Wheel Cylinder........................ 60-10-4


2 Alphabetical Index

B (Cont'd) Page Breaker Points

Information ............................ 40-20-2 Setting ............................... 40-20-4

Break-In, Rebuilt Engine ................. 20-20-3 Breather, Crankcase. . . . . . . . . . . . . . . . . . . .. 20-15-7 Breather, Crankcase, Installation of ....... 20-15-8 Brushes

External Alternator ............. 40-15-7, 40-15-8 Starting Motor ........................ 40-25-5

C Camshaft Removal . . . . . . . . . . . . . . . . . . . .. 20-10-10 Carburetor

Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . .. 30-10-6 Assembly ............................. 30-10-5 Disassembly .......................... 30-10-2 Float Adjustment . . . . . . . . . . . . . . . . . . . . .. 30-10-5 Inspection ............................ 30-1 0-4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 30-10-5 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 30-10-1

Center Reduction Gear Assembly Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-35-3 Disassembly .......................... 50-35-3 General Information ................... 50-35-1 Inspection ............................ 50-35-3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-35-3 Removal .............................. 50-35-1

Chain Drive System Diagnosing .............................. 50-5-2 Tightening .................... 50-45-1, 50-45-2

Clutch Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-30-6 Assembly ............................. 50-30-5 General Information ................... 50-30-1 Inspection ............................ 50-30-4 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-30-1

Coil, Ignition, Information ................. 40-20-2 Condenser

Information. . . . . . . . . . . . . . . . . . . . . . . . . . .. 40-20-2 Testing ............................... 40-20-8

Connecting Rods Bearing Installation .................... 20-15-3 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-10-8

Control Valves, Hydraulic Assembly ............................ 70-15-11 Disassembly .................. 70-15-7, 70-15-9 Inspection ........................... 70-15-1 0 Installation ........................... 70-15-11 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-15-1 Relief Valve Pressure Check .......... 70-15-12 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-15-6

Couplings, Engine and Gearbox, Alignment of 20-15-9

Litho in U. S.A.

Loader, Skid-Steer - 170 TM-1075 (Ju/-74)

Page Cran kcase Breather . . . . . . . . . . . . . . . . . . . .. 20-15-7 Crankcase Breather Installation ........... 20-15-8 Crankshaft

End Play ............................. 20-15-2 Gear Installation ....................... 20-15-5 Gear Removal . . . . . . . . . . . . . . . . . . . . . . .. 20-10-9 Removal .............................. 20-10-9 Tool .................................. 20-20-2

Cylinder Block Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-10-9 Repair ................................ 20-15-3

Cylinder Head Installation ............................ 20-15-7 Removal .............................. 20-10-6

D Delivery Service... . . . . . . . . . . . . . . . . . . . . .. 10-10-1 Diagnosing

Chain Drive System ..................... 50-5-2 Engine Malfunctions ..................... 20-5-2 Electrical System ........................ 40-5-2 Fuel System Malfunctions ................ 30-5-2 Hydraulic System Malfunctions ........... 70-5-2 Piston Rings ............................ 20-5-7 Pistons ................................. 20-5-9 Starting Motor. . . . . . . . . . . . . . . . . . . . . . . .. 40-25-1 Valves .................................. 20-5-6

Diagrams Hydraulic ............................... 70-5-4 Wiring ............... 40-10-3, 40-10-4, 40-10-5

Disassembly of Engine .................. 20-10-2 Distributor Timing ....................... 40-20-3 Drive Belt

Alignment ............................. 50-20-5 Replacement. . . . . . . . . . . . . . . . . . . . . . . . .. 50-20-6 Tightening ............................ 50-20-6

Drive Chains General Information ................... 50-45-1 Tightening Final Drive Chain . . . . . . . . . .. 50-45-1 Tightening Primary Drive Chain ........ 50-45-2 Tightening Secondary Drive Chain. . . . .. 50-45-1

Drive Shaft Assembly, Variable General Information ................... 50-25-1 Left-Hand Removal .................... 50-25-1 Right-Hand Removal .................. 50-25-5

E Electrical System

Diagnosing .............................. 40-5-2 Specifications . . . . . . . . . . . . . . . . . . . . . . . .. 40-30-1 Tools ................................. 40-30-1 Torque Values ........................ 40-30-1



E (Cont'd) End Plate, Bearing, Installation .......... . End Play, Crankshaft ................... . Engine

Page

20-15-2 20-15-2

Diagnosing Malfunctions ................. 20-5-2 Disassembly .......................... 20-10-2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-15-8 Rebuilt Engine Break-In ............... 20-20-3 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-1 0-1 Specifications . . . . . . . . . . . . . . . . . . . . . . . .. 20-20-1 Tools ................................. 20-20-2 Torque Values ........................ 20-20-2

Engine and Gearbox Couplings Adjustment.. 20-15-9 External Alternator

Assembly ............................ 40-15-14 Brushes ...................... 40-15-7,40-15-8 Disassembly .......................... 40-15-7 Installing Kit ......................... 40-15-27 Isolation Diode Removal . . . . . . . . . . . . . .. 40-15-8 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 40-15-7 Slip Ring Cleaning ................... 40-15-14 Slip Ring Removal ................... 40-15-12

External Alternator Tests Battery Voltage ...................... . By-Passing Regulator Load Circuit ..... . Excitation Diode ...................... . Field Current Draw ................... . Isolation Diode ....................... . Open Isolation Diode ................. .

F

40-15-2 40-15-4 40-15-3 40-15-6 40-15-2 40-15-5

Field Coils, Checking, Starting Motor ..... 40-25-6 Filter, Fuel .............................. 30-15-1 Filter, Hydraulic Oil, Fitting Kit

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-8 Disassembly .......................... 70-10-8 Assembly ............................. 70-10-9

Final Drive Chain, Tightening ............ 50-45-1 Float, Adjustment, Carburetor ............ 30-10-5 Flywheel Alternator (Internal)

Inspection ........................... 40-15-17 Rectifier Module Tests ................ 40-15-18 Regulator Module Tests .............. 40-15-18 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-1 0-5 Stator Tests ......................... 40-15-18

Flywheel Removal....................... 20-10-3 Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 30-15-1 Fuel Pump

Inspection ............................ 30-15-1 Reconditioning ........................ 30-15-2 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-1 0-5

Fuel Strainer. . . . . . . . . . . . . . . . . . . . . . . . . . .. 30-15-1 Fuel System

Specifications . . . . . . . . . . . . . . . . . . . . . . . .. 30-20-1 Torque Values ........................ 30-20-1

Litho in U.S.A.

Alphabetical Index 3

Page

G Gearbox

Assembly ..................... 50-15-5, 50-15-9 Disassembly .......................... 50-15-2 General Information ................... 50-15-1 Inspection ............................ 50-15-4 Removal .............................. 50-15-1

Gear Cover Removal External Alternator Type . . . . . . . . . . . . . .. 20-10-6 Flywheel (Internal) Alternator Type ...... 20-10-6

Gear, Crankshaft Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-15-5 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-10-9 Tool .................................. 20-20-2

Gear, Timing Alignment. ................. 20-15-5 Governor, Engine ....................... 20-15-4

H Head, Cylinder, Removal ................ 20-10-6 Hydraulic Control Valves

Assembly ............................ 70-15-11 Disassembly .................. 70-15-7, 70-15-9 Inspection ........................... 70-15-10 Installation . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-15-11 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-15-1 Removal Valve Pressure Check ....... 70-15-12 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-15-6

Hydraulic Cylinders Adjusting Lift Cylinder Stop ............ 70-25-4 Assembly ............................. 70-25-3 Disassembly .......................... 70-25-2 Inspection ............................ 70-25-3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-25-4 Lift Cylinder Removal. . . . . . . . . . . . . . . . .. 70-25-1 Tilt Cylinder Removal. . . . . . . . . . . . . . . . .. 70-25-1

Hydraulic Malfunctions, Diagnosing ......... 70-5-2 Hydraulic Oil Filter

Filter Fitting Kit . . . . . . . . . . . . . . . . . . . . . .. 70-10-8 Installation ............................ 70-10-7 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-7 Vacuum Gauge ....................... 70-10-7

Hydraulic Pump Assembly ............................. 70-10-5 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-2 General Information ................... 70-10-1 Inspection ............................ 70-10-3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-6 Removal .............................. 70-10-1 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-3

Hydraulic System Specifications . . . . . . . . . . . . . . . . . . . . . . . .. 70-30-1 Tools ................................. 70-30-1 Torque Values ........................ 70-30-1



H (Cont'd) Page

Hydraulic Variable Drive Sheave Assembly ............................. 50-20-4 Disassembly .......................... 50-20-4 Fast Range Operation ................. 50-20-1 General Information ................... 50-20-3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-20-4 Removal .............................. 50-20-3 Slow Range Operation. . . . . . . . . . . . . . . .. 50-20-2

Ignition Coil Information. . . . . . . . . . . . . . . . . . . . . . . . . . .. 40-20-2 Testing ............................... 40-20-8

Ignition System Operation................ 40-20-1 Inspection

Axle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-40-4 Carburetor ............................ 30-10-4 Center Reduction Gear Assembly ...... 50-35-3 Clutch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-30-4 External Alternator. . . . . . . . . . . . . . . . . . .. 40-15-13 Fuel Pump ........................... 30-15-1 Gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-15-4

Hydraulic Control Valves ................ 70-15-10 Hydraulic Cylinders .................... 70-25-3 Hydraulic Pump ....................... 70-10-3 Internal Alternator .................... 40-15-21 Master Brake Cylinder ................. 60-10-5 Spring-Loaded Sheave................. 50-25-4 Variable Speed Valve ................ 70-20-10

Installation Engine....................... 20-15-8

l Loader Specifications ...................... 10-5-2 Loader Tune-Up ........................ 10-15-1 Lift Cylinder, Hydraulic

Adjusting Stop . . . . . . . . . . . . . . . . . . . . . . .. 70-25-4 Removal .............................. 70-25-1

Lubrication Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-20-2 Engine Lubricating Oils ................ 10-20-1 Gearbox. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-20-2 General Information ................... 10-20-1 Greases . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-20-2 Hydraulic Oils. . . . . . . . . . . . . . . . . . . . . . . .. 10-20-2

M Master Brake Cylinder

Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 60-10-5 Disassembly .......................... 60-10-5 Inspection ............................ 60-10-5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 60-10-5 Removal. ................... " ........ 60-10-4

Litho in U.S.A.

Oil Filter, Hydraulic


Page

o

Filter Fitting Kit ....................... 70-10-8 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-7 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-7 Vacuum Gauge ....................... 70-10-7

Oil Pump Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-10-8 Repair ................................ 20-15-5

Oil Seals, Replacing ..................... 20-15-1

Parking Brake Lock General Information ................... 60-10-6 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 60-10-6 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 60-10-6

Piston Diagnosing .............................. 20-5-9 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-10-8 Replacing. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-15-2 Replacing Pins........................ 20-15-3

Piston Rings Diagnosing .............................. 20-5-7 Replacing. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-15-3

Power Train Flow ................................. 50-10-1 Specifications . . . . . . . . . . . . . . . . . . . . . . . .. 50-50-1 Tools ................................. 50-50-1 Torque Values ........................ 50-50-1

Points, Breaker Information ............................ 40-20-2 Setting ............................... 40-20-4

Positive Diode, Testing ................. 40-15-10 Predelivery Service. . . . . . . . . . . . . . . . . . . . .. 10-10-1 Primary Drive Chain, Tightening... . . . . . .. 50-45-1 Pump, Fuel, Removal ................... 20-10-5 Pump, Hydraulic

Assembly ............................. 70-10-5 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-2 General Information ................... 70-10-1 Inspection ............................ 70-10-3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-6 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-1 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-10-3

Pump, Oil Removal .............................. 20-10-8 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-15-5



R Page

Rebuilt Engine Break-In ................. 20-20-3 Reconditioning Fuel Pump ............... 30-15-2 Reduction Gear Assembly, Center

Assembly ............................. 50-35-3 Disassembly .......................... 50-35-3 General Information ................... 50-35-1 Inspection ............................ 50-35-3 Installation ............................ 50-35-3 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50-35-1

Repair Starting Motor ........................ 40-25-2 Valve Assembly ............... 20-15-6, 20-15-7

Replacing Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 40-10-1 Bearing End Plate Oil Seal . . . . . . . . . . .. 20-15-1 Drive Belt ............................ 50-20-6 External Alternator Gear Cover Oil Seal 20-15-1 Internal Alternator Gear Cover Oil Seal. 20-15-1 Piston Pi ns . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-15-3 Piston Rings.......................... 20-15-3 Pistons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-15-2

Rod, Connecting, Assembly .............. 20-15-3 Rotor Winding Testing, External Alternator .. 40-15-12

S Secondary Drive Chain, Tightening ....... 50-45-1 Servicing Battery ........................ 40-10-1 Slip Ring, External Alternator, Removal .. 40-15-12 Spark Advance Timing ................... 40-20-5 Spark Plug

Diagnosing Malfunctions ............... 40-20-6 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . .. 40-20-5 Testing ............................... 40-20-9

Specifications Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 60-15-1 Electrical System. . . . . . . . . . . . . . . . . . . . .. 40-30-1 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-20-1 Fuel System. . . . . . . . . . . . . . . . . . . . . . . . .. 30-20-1 Hydraulic System ..................... 70-30-1 Loader ................................. 10-5-2 Power Train .......................... 50-50-1

Speed Valve, Variable Assembly ............................ 70-20-10 Disassembly .......................... 70-20-7 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-20-10 Installation ........................... 70-20-10 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-20-1 Removal ............................. 70-20-7

Litho in U. S.A.

Alphabetical Index 5

Page Spring Loaded Sheave

Assembly ............................. 50-25-4 Disassembly .......................... 50-25-4 Inspection ............................ 50-25-4 Installation ............................ 50-25-4

Starting Motor Assembly ............................. 40-25-6 Checking Armature .................... 40-25-5 Checking Brushes..................... 40-25-5 Checking Field Coils .................. 40-25-6 General Information . . . . . . . . . . . . . . . . . .. 40-25-1 Removal ............................. 40-25-1 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 40-25-2 Testing and Diagnosing ................ 40-25-1

Strainer, Fuel ........................... 30-15-1

T Test

Battery Voltage ....................... 40-15-2 Excitation Voltage, Alternator ........... 40-15-3 Field Current Draw, Alternator. . . . . . . . .. 40-15-6 Isolation Diode, Alternator .............. 40-15-2 Open Isolation Diode, Alternator ........ 40-15-5

Testing Alternator Brushes. . . . . . . . . . . . . . . . . . . .. 40-15-8 Alternator Negative Diode............. 40-15-10 Alternator Positive Diode.............. 40-15-10 Alternator Rotor Winding .............. 40-15-12 Alternator Stator. . . . . . . . . . . . . . . . . . . . .. 40-15-1 0 Condenser. . . . . . . . . . . . . . . . . . . . . . . . . . .. 40-20-8 Ignition Coil.. . . . . . . . . . . . . . . . . . . . . . . . .. 40-20-8 Spark Plug ........................... 40-20-9 Starting Motor ......................... 40-25-1

Tilt Cylinder, Hydraulic, Removal ......... 70-25-1 Timing

Distributor ............................ 40-20-3 Spark Advance. . . . . . . . . . . . . . . . . . . . . . .. 40-20-5

Timing Gear Alignment .................. 20-15-5 Tools

Electrical System...................... 40-30-1 Engine ............................... 20-20-2

Hydraulic System. . . . . . . . . . . . . . . . . . . . . . .. 70-30-1 Power Train .......................... 50-50-1

Torque Values Electrical System...................... 40-30-1 Engine ............................... 20-20-2 Fuel System . . . . . . . . . . . . . . . . . . . . . . . . .. 30-20-1 Hydraulic System ...................... 70-30-1 Power Train .......................... 50-50-1



Page

V Valve Assembly Removal ................ 20-10-9 Valve Assembly Repair

Valve Clearance ...................... 20-15-7 Valve Seat ........................... 20-15-6 Valve Stem Guide ..................... 20-15-6 Valve Tappets ........................ 20-15-6

Valves, Diagnosing ........................ 20-5-6 Variable Drive Shaft Assembly

General Information ................... 50-25-1 Left-Hand Removal. . . . . . . . . . . . . . . . . . .. 50-25-1 Right-Hand Removal .................. 50-25-5

Variable Speed Valve Assembly ............................ 70-20-10 Disassembly .......................... 70-20-7 Inspection ........................... 70-20-10 Installation . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-20-1 0 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-20-1 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70-20-6

w Wheel Brake Cylinder

Assembly ............................. 60-10-4 General Information ................... 60-10-4 Inspection ............................ 60-10-4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .. 60-10-4 Removal. .............. , .............. 60-10-4

Wiring Diagrams External Alternator.... . . . . . . . . . . . . . . . .. 40-10-3 Internal Alternator ..................... 40-10-4 Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 40-10-5

Litho in U.S.A.



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