Heavy Duty Pump Clutch
Direct Drive
Pump Clutch
P-227
819-0374
Installation Instructions
ner Electric pump clutches are
Ground
Ground
Switch
Clutch
Lead
Fuse
10 Amps
War
electromagnetically operated and driven through a
special flange mount which adapts to a universal
joint flange. When current is applied to the clutch
coil, the armature is pulled against the rotor,
causing the clutch to engage. This clutch employs
a sealed bearing and it is maintenance free and
never needs lubrication. Installation is to be made
in accordance with this service sheet. A
connection diagram and troubleshooting
information are also included.
Failure to follow these
instructions may result in product
damage, equipment damage, and
serious or fatal injury to personnel.
Installation
1. Pump clutches are furnished with either a 13
tooth spline or a keyed drive. For splined hub
versions, match the splines to those on the
pump shaft and push the clutch onto the shaft.
With the keyed shaft version, insert the key into
the shaft keyway, match the hub slot to the key
and push the clutch onto the shaft.
Electrical Connection
1. Voltage Requirement
This clutch is 12 or 24 VDC.
2. Current Draw (amps)
The specific current draw for this clutch is
listed in the product specification. A minimum
of 10 amps current should be available to
operate this clutch.
3. Connection
Please refer to the adjacent diagram for proper
connection. Note that one wire is to be
connected to a DC power source. Either wire
may be positive or negative. Select one wire
and attach it to a ground connection or a
negative battery terminal. Attach the remaining
wire to an on/off switch. The switch must be
on a (minimum 10 amp) fused circuit to protect
the electrical system in case of a short circuit.
2. With the clutch on the shaft, push it firmly
against the pump bracket. Complete the
installation procedure in the reverse order for
removing the old clutch.
3. A drive shaft with a universal joint is attached
Connection Diagram
to the engine crankshaft or transmission PTO.
Drive flange bolt pattern and pilot diameter on
Burnish or Run-In
clutch are dimensioned to correlate with
“Spicer” type drive shaft flange connections.
The pump clutch is connected to the other end
of the shaft. Drive shaft alignment must be
within three degrees of straight.
A burnish cycle is required to achieve full rated
torque. With the power input rotating at normal
speed and the pump set at minimum load, cycle
the clutch on and off 50 times at the rate of 10
cycles per minute, which is three seconds run
time and three seconds off time. A new clutch
may emit a short squeal when initially engaged.
Warner Electric • 800-825-9050 P-227 • 819-0374
2
Troubleshooting Checklist
A. Symptom: Clutch will not engage
Problem Possible Causes Solution
Low voltage or wrong voltage • Defective power supply (battery?)
• Defective or corroded wiring or connectors
Rotor/armature airgap too large • Worn components • Replace if coil is OK
Zero current • Broken lead wire
• Faulty switch
• Open clutch coil • Check coil resistance.
B. Symptom: Clutch Slips
Problem Possible Causes Solution
Clutch not burnished • Burnish clutch per burnishing instructions
Clutch attempting to engage
against deadhead pressure • Load being applied to system
• Defective valve(s)
Low supply voltage • Defective power supply or battery
• Defective or corroded wiring or connectors
Overloaded clutch • High pressure relief valve stuck or out of
adjustment
Contaminated friction surfaces • Oil on clutch (friction surfaces must be clean)
Clutch loose on shaft • Loose mounting
Clutch not mounted square to
drive shafts • Dimensional problem at flange or shaft mounting
points
Broken rivet joints
C. Symptom: Noisy Clutch*
Problem Possible Causes Solution
With clutch disengaged • Faulty armature bearing
With clutch engaged • Faulty field bearing
• Loose mounting
• Operating temperature above 250˚ F
• Bearing preloaded axially
*Chirp as clutch engages is normal
Warner Electric • 800-825-9050 P-227 • 819-0374
3
Warranty
Warner Electric LLC warrants that it will repair or replace (whichever it deems advisable) any
product manufactured and sold by it which proves to be defective in material or workmanship
within a period of one (1) year from the date of original purchase for consumer, commercial or
industrial use.
This warranty extends only to the original purchaser and is not transferable or assignable without
Warner Electric LLC’s prior consent.
Warranty service can be obtained in the U.S.A. by returning any defective product, transportation
charges prepaid, to the appropriate Warner Electric LLC factory. Additional warranty information
may be obtained by writing the Customer Satisfaction Department, Warner Electric LLC, 449
Gardner Street, South Beloit, Illinois 61080, or by calling 815-389-3771.
A purchase receipt or other proof of original purchase will be required before warranty service is
rendered. If found defective under the terms of this warranty, repair or replacement will be made,
without charge, together with a refund for transportation costs. If found not to be defective, you
will be notified and, with your consent, the item will be repaired or replaced and returned to you
at your expense.
This warranty covers normal use and does not cover damage or defect which results from
alteration, accident, neglect, or improper installation, operation, or maintenance.
Some states do not allow limitation on how long an implied warranty lasts, so the above limitation
may not apply to you.
Warner Electric LLC’s obligation under this warranty is limited to the repair or replacement of the
defective product and in no event shall Warner Electric LLC be liable for consequential, indirect,
or incidental damages of any kind incurred by reason of the manufacture, sale or use of any
defective product. Warner Electric LLC neither assumes nor authorizes any other person
to give any other warranty or to assume any other obligation or liability on its behalf.
WITH RESPECT TO CONSUMER USE OF THE PRODUCT, ANY IMPLIED WARRANTIES WHICH
THE CONSUMER MAY HAVE ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF
ORIGINAL CONSUMER PURCHASE. WITH RESPECT TO COMMERCIAL AND INDUSTRIAL
USES OF THE PRODUCT, THE FOREGOING WARRANTY IS IN LIEU OF AND EXCLUDES ALL
OTHER WARRANTIES, WHETHER EXPRESSED OR IMPLIED BY OPERATION OF LAW OR
OTHERWISE, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights
and you may also have other rights which vary from state to state.
Changes in Dimensions and Specifications
All dimensions and specifications shown in Warner Electric catalogs are subject to change without
notice. Weights do not include weight of boxing for shipment. Certified prints will be furnished
without charge on request to Warner Electric.
Warner Electric LLC
31 Industrial Park Road • New Hartford, CT 06057
815-389-3771
www.warnerelectric.com
An Altra Industrial Motion Company
P-227 819-0374 8/11 Printed in USA
• Fax: 815-389-2582
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