Warner Electric Pump Clutch Installation - Manual (Page 3)

3 Warner Electric • 800-825-9050 P-1423 • 819-0388
Installation
Diagnose Clutch Failure
Most clutch failures are a direct result of a system
problem or failure. Before installing a new clutch,
determine what caused the old clutch to fail and
fix the system problem. By simply replacing the
clutch without fixing the cause of the clutch
failure, the new clutch may fail in the same
manner as the old clutch.
Step 1
Position the field assembly (1) against the face of
the pump and align the field mounting holes with
those in the pump. Insert four capscrews into the
bolt holes. Tighten the capscrews to a wrench
torque of 7-10 lb.ft. (85-120 lb.in.).
Use care not to strip the
threads in the pump body.
Step 2
The pump shaft must be clean and free of burrs.
Check the shaft key for proper position and
seating.
Step 3
Slide the rotor-pulley assembly (3) onto the
tapered shaft (aligning the key and the keyway).
Secure the rotor-pulley assembly using the
washer (4) and self-locking capscrew (5) provided
with the clutch. Tighten the capscrew to a wrench
torque of 15-20 lb.ft. (180-240 lb.in.)
Step 4
Rotate the rotor-pulley manually to ensure there
is no interference between the field and the
rotor-pulley. If any interference occurs, a
rubbing/scrapping noise will be heard as the
pulley rotates. If rubbing or some other
mechanical interference does occur, disassemble
the clutch (per step 5) and repeat assembly
of the field assembly to the pump.
Step 5 (If Required)
To remove the rotor-pulley from the pump shaft,
remove the self-locking capscrew (5) and washer
(4). Then, insert a 5/8-11 UNC capscrew (not
provided) into the center hole of the rotor. Rotate
the screw against the pump shaft until the rotor
breaks loose from the shaft.
Do not use a wheel puller on
theouter diameter of the pulley as this can
damage the clutch bearing. Warranty will be
voided if clutch is removed without using the
5/8-11 UNC threaded hole provided in the hub
center.
Step 6
Clutch Burnish Procedure
Install drive belts as required by pump design. Run
the pump at normal operating speed and cycle the
clutch on and off at a rate of 10 to 15 times per
minute for 50 cycles minimum. This procedure will
help bring the clutch up to operating torque
capacity.
Note: To prevent electrical system damage,
use the pump clutch control to cycle the
clutch.