1 introduction of new machine new large size wheel loader wa500-6
TRANSCRIPT
7
2. Design Concept and Selling points
1) Outstanding Productivity
2) Higher fuel efficiency
4) High reliability and durability Strengthened frame and Loader linkage
5) Easy maintenance and Inspection
Engine; 316HP 332HP Bucket; 6.5yd3 ⇒ (Clearance 10’5”) 7.3yd3 ⇒ (10’10”)
STD Spec allows loading onto 40 Short ton dump truck.
Productive, Economical and Comfortable Machine
Exhaust : Tier3 (JP, USA, EU) will start from 2006Noise : EU Stage2 will start from 2006
Environmental Compliance
3) Better operator comfort and Easier operation
1) Large-capacity T/C allowing matching at low engine rpms2) Variable displacement pump + CLSS to maximize the use of hydraulic & steering system3) Dual mode engine power select system ( E mode or P mode)
1) Large ROPS-integrated cab
2) Quietness & low noise in the cab 75dB(A) 1.5dB(A) lower than the present level
3) Low effort and short stroke EPC lever
4) Full adjustable large size armrest
9
VS CAT980H VS VOLVO L220E VS WA500-3
ratio980H=100
ratioL220E=100
ratioWA-3=100
Bucket capacity(BOC) yd3 7.3 104 100 112 7.0 7.3 6.5Engine power fan speed is maximum hp 332 104 105 318 316
fan speed is minmum hp 353 101 351Weight lb 71650 107 104 107 67138 69224 67120Breakout force (bucket) lb 55115 111 112 105 49500 49107 52259Max Rim pull lb 64815 104 109 111 62170 59391 58422Clearance ft/in 10'10" 100 101 104 10'11" 10'9" 10'5"
WA500-3CAT980H
WA500-6VOLVOL220E
70
80
90
100
110
120Engine power
Bucket capacity
Dump. clearance
Tractive force
Breakout
Machine weight
CAT 980H WA500-6
BucketCapacity
Engine power
Machine Weight
Breakout Force
Max. Rim pull
Dump. Clearance
1) Outstanding Productivity
70
80
90
100
110
120Engine power
Bucket capacity
Dump. clearance
Tractive force
Breakout
Machine weight
L220E WA500-6
BucketCapacity
Engine power
Machine Weight
Breakout Force
Max. Rim pull
Dump. Clearance
70
80
90
100
110
120Engine power
Bucket capacity
Dump. clearance
Tractive force
Breakout
Machine weight
WA500-3 WA500-6
BucketCapacity
Engine power
Machine Weight
Breakout Force
Max. Rim pull
Dump. Clearance
Upgraded KEY Specs and Comparison of CAT VOLVO and Current model
10
WA500-6 can load 40 Short ton with the standard spec. WA500-3 required an optional high lift boom with the 5.6 yd3 bucket.
WA500-6 allows good visibility because of high operator’s high eye point.
(Figure: the number of passes)
Matching with Dump Trucks
Increased Bucket Capacity – matches with one class higher dump trucks
WA500-6 CAT 980HVOLVOL220E
WA500-3
Bucket Capacity (yd3)STD boom 7.3(BOC) 7.0(BOC) 7.3(BOC) 6.5(BOC)
High lift boom 6.5(Teeth & Segments) 5.9( Teeth & Segments) 5.9( Teeth & Segment) 5.6( Teeth & Segment)
On the road Dump trucks
Japan 11.0ton 2 SP = 2 SP 2 SP 2 SPUSA ~21.5ton 3 SP = 3 SP 3 SP 3 SPEurope ~38.0ton 4 SP < 5 SP 4 SP 5 HL
Articulate
Dump trucks
HM400 40 Short Ton 4 SP = 4 SP 4 SP 5 SPHM350 36 Short Ton 4 SP = 4 SP 4 SP 4 SPHM300 30 Short Ton 3 SP = 3 SP 3 SP 4 SP
Off the road Dump trucks
HD405 class 45 Short Ton 5 HL = 5 HL 5 HL 6 HLHD325 class 40 Short Ton 4 EX = 4 EX 4 EX 5 HLHD255 class 28 Short Ton 3 EX = 3 EX 3EX 3EX
1) Outstanding Productivity
• SP: Stockpile Bucket• EX: Excavate Bucket• HL: High Lift Boom
**
***
Improved matching passes
11
High performance SAA6D140E-5 ecot3 ENGINE
Electronic H/D Common Rail fuel injection system provides optimum combustion of fuel.This system also provides fast throttle response to match the machine’s powerful rim pull and fast hydraulic response.
“ecot3” : ecology & economy technology 3
Komatsu CAT VOLVO Komatsu
WA500-6 980H L220E WA500-3
Engine modelKomatsu
SAA6D140E-5CAT
C15 ATAACVOLVO
D12CLBE2Komatsu
SA6D140E-3
Total displacement in3 930 928 732 930
Rated powerKW (HP) 248 (332) 237 (318) 235 (316) when fan speed is maximum
KW (HP) 263 (353) 258 (351) when fan speed is minimum
Rated engine speed rpm 1900 1800 1600 2100
Max torque ft-lb 1318 1191 1294 1012
Engine spec
1) Outstanding Productivity
12
Large-capacity torque converter
Newly designed drive train has a large-capacity torque converter for optimal efficiency and an unparalleled initial rimpull-to-weight ratio.
Because of its unequalled rimpull at low speeds, material penetration is easier. Productivity is also superior in V-Shape loading.
The WA500-6 has plenty of acceleration and it can achieve high travel speeds, even on grades. This significantly assists productivity and also delivers great value for load-and-carry operations.
Maximum Rimpull : 64185 lb WA500-3 : 58422lb
1) Outstanding Productivity
Gradability 10degree uphill (Mile/h)
6.0
7.3
5.95.6
4.8
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
WA500-6 WA500-6 980G L220E WA500-3
Tra
vel s
pe
ed
(M
ile/h
)
With Lock-upClutch (Option)
14
Lock-up Torque Converter (Option)
The Komatsu designed lock-up torque converter provides increased production efficiency, reduced cycle times and optimum fuel savings in load & carry or hill-climb operations.
This feature allows the operator to activate the system on/off with a switch located on the right-side control panel.
1) Outstanding Productivity
WA500-6 WA500-3 980H L220E
Lock-up Torque Converter
Option
(2nd-4th)Not
availableNot
availableNot
available
10.3 10.08.0
12.4
0
5
10
15
WA500-6 CAT980G WA500-3
Without Lock-up Lock-up
Travel speed on uphill grade 5degreeMile/h
Lock up clutch switch
15
Outstanding digging performance
WA500-6 WA500-3 980H L220E
Max Rimpull lb 64815 58422 62170 59391
Breakout force lb 55115 52259 49500 49107
Maximum Rimpull +11%
Breakout force (Bucket) +5%
(Vs WA500-3)
Rimpull
WA500-6
WA500-3
1) Outstanding Productivity
Breakout force
Return to Design Concept
16
(1) Matching at Low RPM
(2) Highly Efficient Hydraulics & Steering User selection
Summary
Komatsu New technology for the higher fuel efficiency
Low rated rpmHigh torque
engine
Large capacity torque
converter
Variable displacement piston pump
Closed-center load sensing system
(CLSS)
ImprovedFuel
Economy
(3) Two engine power settings E mode: normal duty P mode: heavy duty
(4) Lock-up Torque Converter (Option)
For Load & Carry
+
2) Higher fuel efficiency
(5) Automatic transmission with shift timing select system L mode: flat travel H mode: uphill travel
+
17
Low engine speed matching with Large-capacity torque converter
WA500-6, with the high-torque engine and large-capacity torque converter, allows Low engine speed matching.
Low engine speed matching
Large capacity
Torque Converter
Use of optimum fuel efficiency zone
• Greater machine traction • Excellent acceleration from engine low speed
Lower fuel consumption
2) Higher fuel efficiency
Tra
ctio
n
Accelerator pedal stroke
WA500-3
WA500-6
18
New Variable Displacement Piston Pump(employed at the loader pump and steering pump+CLSS)
Fixed Displacement Gear Pump (WA-3)
The pump delivers only necessary amounts minimizing waste loss.
The pump delivers the maximum amount at any time and the unused flow is disposed.
Variable displacement piston pump + CLSS to maximize the use of hydraulic flow
New design variable displacement piston pump combined with the Closed-center Load Sensing System delivers hydraulic flow just as the job requires preventing wasted hydraulic flow.
Minimized waste loss contributes to better fuel economy.
Pump Valve
Feedback
Quick movement
Controller
Pump Valve
Feedback
Slow movement
Controller
Pump Valve
Slow movement
Loss
Pump Valve
Quick movementLoss
2) Higher fuel efficiency
19
Dual mode engine power select system ( E mode: to save fuel, P mode: powerful)
E mode is used for normal duty jobs such as V shape loading, Load &carry, on the level ground.
Even though in E mode, enough engine power is provided.
( see bellow table)
In P mode, maximum engine power is provided.
This mode is suitable to jobsite where the loader has to move faster on uphill grades and priority is given to production.
2) Higher fuel efficiency
Engine speed
P modeE mode
To
rqu
e
For normal duty jobsFor heavy duty jobs
Selection guide is shown in page 27
WA500-6WA500-3 CAT980H
P mode E mode
Rated power (*1) 332hp/1900rpm 322hp/1800rpm 316hp/2100rpm 318hp/1800rpm
(*1) when fan speed is maximum
Rated power
Dual mode engine power select switch
20
Lock-up torque converter (Option)
Advantage of Lock-up torque converter in Load & Carry operationThe Komatsu designed lock-up torque converter provides increased production efficiency, reduced cycle times and optimum fuel savings in load & carry or hill-climb operations.
11.4
10.710.9
10.1
8.08.59.09.5
10.0
10.511.011.512.0
P mode E mode
Hou
rly fu
el c
onsu
mpt
ion
(Gal
/h)
Lock-up OFF Lock-up ON
Hourly Fuel consumption (Gal/h) Hourly Production (Short Ton/h)
224
215
237234
180
190
200
210
220
230
240
P mode E mode
Hou
rly P
rodu
ctio
n (t
on/h
)
Lock-up OFF Lock-up ON
19.620.1
21.7
23.2
16.017.018.0
19.020.021.022.0
23.024.0
P mode E modeH
ourly
Pro
duct
ion
(ton
/h)
Lock-up OFF Lock-up ON
Efficiency (Short Ton/Gal)
Load & Carry operationPlace: Nozu test groundDistance: 350m ( uphill 30m)Accelerator pedal: full throttle
162165
155157
150
155
160
165
170
P mode E mode
Ho
url
y P
rod
uct
ion
(to
n/h
)
Lock-up OFF Lock-up ON
Average cycle time (sec)Lock-up Torque converter
WA500-6 OPT (2nd-4th)
CAT980H Not available
VOLVO L220E Not available
WA500-3 Not available
(106) (101) (100) (95)(104) (110) (100) (109)
(98) (108) (100) (115)
2) Higher fuel efficiency
21
0
25
50
75
100
0 10 20 30
Speed(km/ h)
Angle
of
acc
ele
rato
r pedal(%
)
F2 F3 F4
L H L H
Transmission mode select system
L mode: Suitable for general excavating and loading.
This mode provides smooth gear shifting and low fuel consumption since gear shifting is performed at relatively low engine speed. H mode: Suitable for load and carry operation uphill.
This mode provides large rim pull and short cycle time since gear shifting is performed at relatively high engine speed.
2) Higher fuel efficiency
This mode select system allows the operator to select 2 levels of automatic shifting (L mode, H mode) or manual shifting.
In Auto shift mode, the controller automatically selects the optimum gear speed, depending on the angle of accelerator pedal.
Shift mode select switch
23
The engine fan is driven hydraulically. The speed of the fan is controlled by engine coolant temperature, hydraulic oil temperature, transmission oil temperature and air conditioning state (on/off).
Hydraulic driven fan
Hydraulic driven fan
2) Higher fuel efficiency
The fan is controlled to proper low speed according to the temperature. This minimizes unnecessary waste of engine power for cooling and reduce fuel consumption.
0
100
200
300
400
500
600
700
800
900
1000
1100
600 800 1000 1200 1400 1600 1800 2000 2200
E/G Speed (rpm)
Fa
n sp
ee
d (r
pm
)
Engine coolant, hydraulic oil or transmission oil is high temperature
Engine coolant, hydraulic oil and transmission oil is low temperature.Air conditioning is OFF
1)Low fuel consumption
2)Low noise
24
Comparative test result (productivity and Fuel Economy) (1/2)
Place: Nozu test ground
Material : Crushed stone
Hourly Fuel Consumption (Gal/h)
9.5 10.111.5 11.6 11.8
5.07.09.0
11.013.0
E-mode P-mode WA500-3 CAT980Gll VolvoL220EFue
l con
sum
ptio
n(G
Al/h
)
Hourly Production (yd3/h)
912 927
838897
965
700
800
900
1000
E-mode P-mode WA500-3 CAT980Gll VolvoL220EHou
rly P
rodu
ctio
n(y
d3/h
)
Efficiency (yd3/L)
25.2 24.219.2 20.4 21.6
1015202530
E-mode P-mode WA500-3 CAT980Gll VolvoL220E
Eff
icie
ncy
(yd3
/L)
WA500-6
WA500-6
WA500-6
VSWA500-3
VS
CAT
980GII
VS
VOLVO
L220E
V-shape -17% -17% -18%
Fuel Consumption (Gal/h)
(83) (88) (100) (101) (103)
(109) (111) (100) (107) (115)
(131) (126) (100) (106) (112)
Fuel consumption test result
V- shape Loading
25
Comparison of Productivity and Fuel Economy
Load and carry 70m
Hourly Fuel Consumption (Gal/h)
13.1 13.6 12.5 12.515 14.9 14.4
0
5
10
15
20
E-mode P-mode E-mode P-mode . WA500-3 980Gll L220E
Fue
l con
sum
ptio
n (G
al/h
)
WA500-6with Lock-up
Place: Nozu test ground Material : Crushed stone
WA500-6
VSWA500-3
VS
CAT
980GII
VS
VOLVO
L220E
Load & Carry -17% -16% -13%
Fuel Consumption (L/h)
(87) (91) (83) (83) (100) (99) (96)
Comparative test result (productivity and Fuel Economy) (2/2)
27
Selection guide of unique functions to reduce fuel consumption
2) Higher fuel efficiency
① ② ③
Auto Shift Engine Power Lock up (Opt)
Manual L H Economy Power on off
Normal duty
V-Shape loading
Stock piling
Flat & Solid ground ○ ○ ○
Slippery ground ○ ○ ○
Rock Flat & Solid ground ○ ○ ○
Slippery ground ○ ○ ○
Load & Carry Level ground ○ ○ ○
Uphill grade ○ ○ ○
Except above; when high production is required ○ ○ ○
Traveling Level ground ○ ○
Uphill grade ○ ○
28
Comfort and low noise cab
Reduction of noise and vibration levels: Operator’s ear noise level (ISO 6394) : 75dB(A) EU dynamic noise level (ISO6396) :Label value 78dB(A) Increased seat slide adjustment to backward for the tall operator by introducing front mounted air conditioner unit.
Rear-hinged full opening doorThe door hinge is installed to the rear side of the cab and opening angle of the door is increased, so that operator can enter the cab directly from the step.
3) Operator comfort and easier operation
WA500-6 WA500-3 CAT980H
ISO6394 75 78 76
Operator’s ear noise level: dB(A)
29
Excellent operator environment
3) Operator comfort and easier operation
Lighting switch
AshtrayLoad meter switch (OPT)
Main monitor panel( with load meter (opt) )
Full adjustable seat, air suspension with reclining
Beverage holder
Lunchbox holder
Overhead panel (upper right)AM/FM radio with cassette
Air conditioner control
EPC leverFull adjustable large armrest
Right side console
30
Full adjustable ergonomic large size armrest
3) Better operator comfort and easier operation
The Operator can adjust the height and angle of armrest to obtain the best operating position.
31
EPC lever (Electronic Pilot Control lever)
The finger control EPC work equipment control levers have light operating effort and short stroke facilitating easy operation.
The operator’s comfort is further increased by the large size full adjustable arm rest.
Combined with CLSS, this system allows following new functions for easy and efficient operation.
Boom control
Bucket control
Remote bucket digging angle control switch
Remote Boom positioner switch
Remote bucket digging angle control
3) Operator Comfort and easier operation
Remote Boom Positioner with shockless stop functionThe highest and lowest position of the bucket can be set from cab to match any truck body. Once the positioner is set, the bucket is smoothly stopped at desired position with no shock.
Remote bucket digging angle controlThe digging bucket angle can be easily set from cab to match of ground condition.
Semi-auto digging system (Option)Bucket tilt operation can be automatically done when digging.
Semi-auto digging offers two selectable modes – Rock and Loose
32
Variable Transmission Cut-off System
The Operator can continuously adjust the transmission cut-off pressure desired for the left brake pedal using switch located on the right-side control panel.
The Operator can improve the working performance by setting the cut off pressure properly depending on working condition.
Higher cut-off pressure allows the transmission to remain engaged at higher engine rpm/hydraulic pressure for increased performance in ramp loading and pilling up operations.
Lower cut-off pressure disengages the transmission at lower rpm/hydraulic pressure.
The vehicle can be braked smoothly with less shock when approach to dump truck.
Cut off adjustment switch
Cut-off ON/OFF switch
(6) Engine RPM Set System with Auto Decel
Engine Low idle RPM can be easily preset using a push button switch.
This system provides auto decel for better fuel consumption.
Auto decel
RPM Set
3) Operator comfort and easier operation
33
ECSS (Electronically Controlled Suspension System
The accumulator of ECSS absorbs a large part of low frequency vibration such as pitching and bouncing caused by unevenness of roads to attain high travel performance and reduce the fatigue of operator.
Less material spills during Load & Carry operation.
The loader can travel smoothly at higher speed.
3) Operator Comfort and easier operation
(-)
0
(
+)
vib
ratio
n a
cce
lera
tion
time (sec)
ECSSOFF
(-)
0
(
+)
vib
ratio
n a
cce
lera
tion
time (sec)
ECSSON
Transmission controller
Travel speed sensor
ECSS Switch
ECSSvalve
ECSSController
AccumulatorBoom Cylinder
Effect of ECSS to restrict vibration
Working conditionOperation of accumulator
Applicable work
1st gear OFFDigging, approaching dump truck
2nd -4th gear
Below 3.1M/h OFF
Above 3.1M/h ON Travelling (empty, loaded)
Detail of operation
34
4) High reliability and durability
More torsional rigidity given to the frames and the loader linkage
Transmission1.Increased bearing life2.Strengthened transfer gear3.Strengthened input shaft and output shaft4.Increased clutch capacity5.Strengthened planetary gear
(2) Strengthened transmission and axles
Axle1.Strengthened bevel gear2.Strengthened final drive3.Increased Brake capacity4.Strengthened Housing
• The front and rear frames and the loader linkage have got more torsional rigidity to secure resistance against stresses increased due to the use of a larger bucket.
• Frame and loader linkage are designed to accommodate actual working loads, and simulated computer testing proves its strength.
35
• All components within the power train are all Komatsu-designed.• Designed to bear large loads and transmit large amounts rimpull.• Komatsu’s full floating axle is used along with its planetary style transmission – another exclusi
ve Komatsu feature with proven industry experience under a strict quality control system.• The variable displacement hydraulic pump and hydraulic cylinders are also Komatsu-built com
ponents.
4) High reliability and durability
Komatsu Components
36
Waterproof seal
Waterproof seal
4) High reliability and durability
Sealed DT connectors
Main harnesses and controller connectors are equipped with sealed DT connectors high reliability, dust and corrosion resistance.
(4) Flat face-to-face O-ring seals
Flat face-to-face O-ring seals are used to securely seal all hydraulic hose connections and prevent oil leakage.
37
4) High reliability and durability
KOMTRAX II (Std: N America)
Komtrax Benefits•Locate machines instantly through GPS system •Get real-time hour meter readings •Know in advance when maintenance is due •Plan maintenance by customers' usage patterns •Schedule equipment usage more effectively •Track lost or stolen equipment •Works on virtually any type or model of machine
This system is especially useful for service management if you’re located at a remote site where it’s difficult for service personnel to access your machines, and where your machines cannot be seen from your site management office.
It’s also useful for monitoring rentals and for recovering stolen machines.
38
Upper bracket
modular core
Modular radiator core system
5) Easy Maintenance and Inspection
The modular radiator core is easy to replace without removing the entire radiator assembly.
modular core
The engine fan is driven hydraulically. It can be operated in reverse with the switch in the operator’s cab to blow off the dirt from the front side of the radiator and oil cooler.
Reversible radiator fan
Fan reverse switch
39
5) Easy Maintenance and Inspection
Remote grease lines come together in two convenient central service banks on the left side of center pivot.
It is not necessary to get into under the machine.
Remote grease line
•Rear axle support
•Boom pivot (L,R)•Boom cylinder pivot (L,R)•Bucket cylinder pivot•Steering cylinder pivot (L,R)•Center support
The grease up interval for propeller shafts are increased to 4000 hours.
41
3.Comparative SpecificationsDevelopment Current
№ Items Unit CAT VOLVO980H L220E
1 Bucket Capacity yd3 BOC 7.3 BOC 6.5 BOC 7.0 BOC 7.32 Rated load lb 20,393 17,857 19,841 19,8413 Bucket Width ft/in 11'2" 11'2" 11'4" 11'2"4 Operating Weight lb 71650 67120 67126 692245 Tire size STD -- 29.5-25-22PR L3 29.5-25 22PR L3 29.5-R25 L3 29.5-R25 L46 Manufacturer -- KOMATSU KOMATSU CAT VOLVO
ENG Model SAA6D140E-5 SA6D140E-3 C15 ATAAC D12CLBE27 Displacement in3 930 930 928 7328 Rated power Max Fan speed HP<kW>/rpm 332 <248>/1900 316<235>/2100 318<237>
Min Fan speed HP<kW>/rpm 〈 353 / 263 〉 351<258>/16009 Max.torque /rpm ft-lb/rpm 1318/1250 1012/1400 1191/1200 1294/1200
10 Overall length(Bucket on G) ft/in 31'9" 30'3" 30'11" 29'11"11 Overall width (Tire) ft/in 10'6" 10'6" 10'7" 10'5"12 Overall height ROPS ft/in 12'5" 12'8" 12'4" 12'3"13 Wheel base ft/in 12'5" 11'10" 12'2" 12'2"14 Travel Speed F4 mph 21.8【24.3】 21.6 22.6 20.5
【Lock up T/C】 6 degree mph 9.1【10.6】 6.9 [9.3] 980Gll 9.615 Max.rim pull (F1) lb 64,815 58,422 [62170] 980Gll [59391]16 Min Turn Radius (Bucket corner) ft/in 25'0" 24'0" 25'11" 25'5"17 Articulate angle deg 40 40 37 3718 Dumping Clearance BOC ft/in 10'10" 10'5" 3322 327019 Dumping Reach BOC ft/in 4'11" 4'6" 4'11" 4'2"20 Tilt Back Angle Carry, SAE deg 50 48 49 4721 Breakout force Boom lb 46,958 44,202 41,226 40,565
(η=1.0) Bucket lb 55,115 52,249 49,493 49,10722 Static Tipping straight lb 52,030 52,920 48,245 51,786
Load full turn lb 45,195 45,427 43,293 45,34923 Stability straight -- 2.55 2.74 2.43 2.61
full turn -- 2.22 2.37 2.18 2.2924 Operator Ear noise dB(A) 75 78 76 7525 Surround noise dB(A) 109 111 112 108
WA500-6 WA500-3
Competitors
42
Comparison of fuel economy features
WA500-3 WA500-6 CAT980H VOLVO L220E
Hydraulic system 2 Stage hydraulic with
Fixed gear pump + Load Sensing Steering
This system controls only switch pump on-off.
Variable piston pump + Closed-center Load Sensing System
Variable piston pump + Load Sensing System
Load sensing System is for both loader & steering
Load sensing System is for steering only
Load sensing System is for both loader & steering
Pump displacement Fixed Variable Fixed Variable
Power mode select system
----
E mode for economy (with eco indicator) &P mode for powerful
The system controls both engine power curve and piston displacement synthetically.
----- -----
Transmission mode select system
Not selectable
(Conventional Automatic T/M)
3 mode
1) Auto L: Suitable for general loading economically.
2) Auto H: Suitable for uphill load &carry
3) Manual mode
Variable shift control (VSC)
3mode
APS (Automatic Power Shift) with mode selector
Fan drive belt Hydraulic driven fan
(Demand fan)
Hydraulic driven fan
(Demand fan)
Hydraulic driven fan
(Demand fan)
Lock-up clutch (Option)
-----2nd to 4th (Option) -------- -------
3.Comparative Specifications
43
Comparison of comfort and easy operation
WA500-3 WA500-6 CAT980H
Interior sound level 76.5dB(A) 75dB(A) (-1.5dB Vs WA500-3) 76dB(A) (+1dB Vs WA500-6)
Hydraulic control PPC Electrically Pressure Control lever (EPC lever)
Electro-Hydraulic Control System
Remote Boom Positioner with shockless stop function
Remote bucket digging angle control
Semi-auto digging system (Option)
Kick-out Positioner ControlAutomatic bucket tilt/lift kick-outs, Electronically adjustable from cab
Transmission cut off------
Variable Cut off Set System IBS (Integrated Brake System)With variable cut-off pedal stroke
Automatic Transmission
F4/R4 Automatic Transmission
F4/R4 Automatic Transmission with ECMV
F4/R4 Auto Shift
Clutch pressure control
EPOC ECPC (Electronic clutch pressure control)
Engine RPM set ------ RPM set system with Auto-decel Throttle Lock (without Auto- decel)
3.Comparative Specifications