iom manual c132355.sflb

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Application, Installation and Maintenance Instructions

Clarke Universal Flexible Connecting Shafts

Sizes CDS10 thru CDS50

For Diesel Driven Fire Pumps

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How to Use This Manual

This manual provides detailed instructions on

applications, installation, lubrication, maintenance, parts

identification, and dimensional data. Use the table of

contents below to locate required information.

Table of Contents

INTRODUCTION Page 1

APPLICATION GUIDELINES Page 1

LUBRICATION Page 1

INSTALLATION INSTRUCTIONS Page 1

ANNUAL MAINTENANCE Page 3

ALIGNMENT PROCEDURE Page 4PARTS IDENTIFICATION Page 7

PARTS ORDERING INFO Page 8

DIMENSIONAL DATA Page 9

TROUBLE SHOOTING Page 10

CAREFULLY FOLLOW THE INSTRUCTIONS IN

THIS MANUAL FOR OPTIMUM PERFORMANCE

AND TROUBLE FREE SERVICE.

INTRODUCTION

This manual applies to sizes CDS10 thru CDS50 Clarke

Universal Joint Driveshafts. These driveshafts are

designed to operate in the horizontal position.

Driveshafts should be installed in accordance with the

Standard for Installation of Stationary Pumps for Fire

Protection, NFPA 20.

APPLICATION GUIDELINESCertified driveshafts (for rated BHP’s and speeds given in

table below) can only be used with Centrifugal Fire

Pumps (Service Factor 1.0). Contact Clarke for

application guidelines for Positive Displacement Fire

Pumps (Service Factors 1.5 to 2.25).

The engine driver BHP shall not exceed the selected

driveshaft BHP rating as defined in Table 1.

Table 1

Table 1

See Appendix A showing how Table 1 values areestablished.

Driveshafts are not Listed for service with electric motors.

Shaft hubs are designed for clearance fit with set screw

over keyways.

It is recommended that a torsional analysis be conducted

on the actual drive system arrangement. See Appendix B

for required mass elastic information.

LUBRICATION

Cross and bearing and sliding splines contain only enoughgrease to provide protection during shipment. It is

necessary to lubricate by zerk fittings prior to start-up to

avoid premature failure. Use a good quality lithium base

E.P. grease meeting N.L.G.I. grade 2. Several greases

meeting these specifications Lubriplate 1200-2, Shell

Alvania EP2 or Mobil Mobilux EP2.

Add lubricant to universal joint until clean lubricant

appears at all four bearing seals and until lubricant

appears at pressure relief hole for spline lubrication on

variable length shafting. It may be necessary, while

applying grease gun pressure, to move the drive shaft

from side to side to allow greater thrust clearance on aseal end that is not purging. Lubrication intervals should

be done on an annual basis. Adverse conditions such as

extreme temperatures, wet or corrosive environment may

require special greases and more frequent lubrication.

INSTALLATION INSTRUCTIONS

WARNING: Lockout starting switch of prime mover and

remove all external loads from drive before installing or

servicing couplings.



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CAUTION: Consult applicable local and national safety

codes for proper guarding of rotating members. Observe

all safety rules when installing or servicing couplings.

Horizontal Installation

Check flange bores and shaft diameters for proper fit. All

mating surfaces, bores and faces must be clean and free

from grease, oil, dirt, nicks and other contaminates to

insure a proper fit and function of mating parts. The shaftshould not extend beyond the flange face.

Stock bored flanges are bored to +.001 / -.000 tolerance.

This allows the flange to be gently tapped onto the driving

and driven shafts. One set screw over keyway is provided

to lock the flange into position.

For light interference or shrink fits heat the flange

uniformly (preferably submerged in oil not exceeding 350°

F) to expand the bore. Align the keyways in both the shaft

and flange, slide flange onto shaft and allow to cool.

CAUTION: Do not attempt to hammer an undersized

flange on without heat.After installing companion flanges, check the run-out of

the flange face and pilot diameter (.005 T.I.R. maximum

permissible). Splined telescoping assemblies should not be

disassembled to avoid misalignment and unbalance. Shaft

yokes must be aligned in phase. Check the match

markings.

To insure long life and trouble free operation, units should

be regularly inspected to insure that bolts are tight, mating

flanges are secure and lubrication seals and zerk fittings

are intact.

Any unusual sound or vibration should be located and

corrected immediately.

WARNING: WHEREVER PEOPLE OR

EQUIPMENT CAN BE ENDANGERED BY

ROTATING UNIVERSAL SHAFTS, SAFETYDEVICES MUST BE PROVIDED BY USER!

Lower compressed U-Joint Coupling into position and

extend ends so that the pilot is seated firmly into mating

companion flange and bolt holes are lined up.

Check that assembly isn’t bottomed out or fully extended.

Insert bolts/studs and tighten to specified torque indicated

in Table 2.

TABLE 2

Companion Flange Torque Specifications

Driveshaft

Series

Bolt Size Grade Torque

CDS10 7/16-20 8 (Hi-Tensile) 50 Ft-lbs

CDS20 1/2 – 20 8 (Hi-Tensile) 75 Ft-lbsCDS30 3/8 - 24 8 (Hi-Tensile) 30 Ft-lbs

CDS50 7/16 - 20 8 (Hi-Tensile)) 50 Ft-lbs

NOTE: Torque values based on lightly oiled threads.

Once components are properly seated, graduate up to final

torque value.



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EQUIPMENT ALIGNMENT:The alignment procedures can be found on page 4, 5, and

6 of this document as well as the label applied to the

driveshaft guard.

The equipment shall be designed such that the driver and

driven shaft centerline are parallel, but there shall be an

offset of the shaft centerlines. The joint operating angle

shall be within 2 + 1°.

Parallel offset

ß°1

ß°2

A

B

An offset "A", of 3/16" to 5/8" per foot of joint coupling

measured joint center to joint center, distance "B", is

equivalent to approximately 1.0° to 3°. (β°1 = β°2)

Angular Misalignment

ß°1 ß°2

The defection angles (β°1 & β°2) of both joints must also

be equal to one another within ±0.5°. The driver and

driven shaft centerlines must intersect at the center of the

drive shaft. (β°1 = β°2)

ANNUAL MAINTENANCE

For extreme or unusual operating conditions, check

driveshaft more frequently.

1. Re-check alignment per steps in alignment procedure

section in this manual. If the misalignment limits are

exceeded, realign the driveshaft.

2. Check tightening torques of all fasteners.

3. Inspect seal rings and gaskets to determine if

replacement is required. If leaking grease, replace.

4. Lubricate shaft per lubrication section in this manual.



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ALIGNMENT PROCEDURES



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PARTS ORDERING INFORMATION:

1. Identify part(s) required by name above.

2. Furnish the following information:Example:

Driveshaft Model or Size: CDS10-SC

3. Contact Clarke Fire Protection Products or Clarke UK

LTD

Contact Info:

USA – Dave GoodfriendEmail: [email protected]

Phone: 1.513.719.2352

Fax: 1.513.771.5375

UK – Duncan Murray

Email : [email protected]

Phone : 44 (0) 1236 429946

Fax : 44 (0) 1236 427274



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TROUBLE SHOOTING GUIDE

PROBLEM CAUSE SOLUTION

VIBRATIONS 1. Operating near critical or half critical speed resonance. Consult Clarke. Rework using different tube sizes.

2. Operating at or near driver or driven equipment

natural frequency.Consult with equipment manufacturer.

3. Driver or driven components out of balance. Consult with equipment manufacturer.

4. Pump noise. Consult pump manufacturer.

5. Shaft yokes not in phase Disassemble and align yoke.

6. Flange faces not seated.Check for burrs or grit and reseat. Check tightening

torque for all fasteners.

7. Operating speed within a torsional vibration mode. Perform torsional analysis. Consult Clarke.

8. Driver and driven shafts/Companion flange not

parallel within 1°.Align and adjust, shim structure if necessary.

9. Driver and driven shaft run-out Consult manufacturer.

10. Flange face or pilot run-out exceeding .005" TIR. Check fit, if exceeds consult manufacturer.

11. Exceeding maximum joint acceleration. Reduce angle and/or speed.

12. Dry or brinelled (needle bearing indentations)Replace defective joints / Check lubrication.

Review operating parameters

13. System resonance/vibrationPerform vibration analysis. Consult equipment

manufacturer.

14. Excessive radial movement at the slip yoke orbinding movement

Lack of lubrication, overload condition. ConsultClarke.

15. Companion flange, fastener loose. Secure fastener / Check for vibrations

1. Set screw over keyway tightened improperly. Tighten set screw.FLANGE

SLIPPING

OFF SHAFT

2. Exceeding weight limitations for stock bored

flanges/shaft diameter undersize.

Add additional set screw or replace with interference

fit bore flange/locking collar.

CLARKE Fire Protection Products

www.clarkefire.com

CLARKE Fire Protection Products, Inc. CLARKE UK, Ltd.

3133 E. Kemper Rd. Grange Works, Lomond Rd.Cincinnati, Ohio 45241 Coatbridge, ML5-2NNUnited States of America United KingdomTel +1-513-771-2200 Fax +1-513-771-0726 Tel +44-1236-429946 Fax +44-1236-427274

Specifications and information contained in this brochure subject to change without notice.



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