Warner Electric ECN-24280 10_18_11 OBSOLETE - Manual (Page 3)

Warner Electric • 800-825-9050 P-1374 • 819-0075 3
1. Rotor-Pulley Removal
Remove the self-locking capscrew (5) and
washer (4). Insert a 5/8-11 UNC-2B capscrew
in the threaded portion of the hub and tighten.
The pressure exerted by the capscrew on the
end of the compressor shaft will force the
rotor-pulley assembly off without damage to
the clutch or the compressor. DO NOT USE A
PULLER on the outside diameter of the pulley.
This can damage the pulley grooves or the
clutch bearing.
2. Field Removal
Remove the three capscrews (3) and
disconnect the coil lead wire(s) from the vehicle
wires.
3. Compressor Shaft Inspection
The compressor shaft must be clean and free
from burrs. Check the woodruff key for proper
position and seating in the keyway. If the shaft
seal is leaking oil, repair or replace the
compressor.
4. Field Installation
Position the field assembly (1) against the
compressor bosses, aligning the field mounting
holes with the bolt holes in the bosses. Insert
the three capscrews and washers (3), furnished
with the clutch, into the bolt holes of the
compressor. Tighten the capscrews to a
wrench torque of 2 ft.-lb. (17-24 in.-lb.).
Use caution not to strip the threads in the
compressor body. Connect the field lead wires
to the vehicle wires and route them away from
moving parts.
5. Rotor-Pulley Installation
Align the keyway in the rotor-pulley assembly
(2) with the woodruff key in the compressor
shaft. Slide the rotor-pulley assembly onto
the tapered shaft. Secure the rotor-pulley
assembly with the plain washer (4) and
self-locking capscrew (5). Tighten the
capscrew to a wrench torque of 15-20 ft.-lb.
(180-240 in.-lb.).
Note: The clutch can be held from rotating
by engaging the clutch with the belts
installed or by using a spanner wrench
inserted in the holes provided on the front
of the rotor-pulley hub.
6. Interference Inspection
Spin the pulley by hand and listen for
interference between the field and the
rotor-pulley. IF THERE IS INTERFERENCE,
REMOVE THE ROTOR-PULLEY ASSEMBLY
AND ADJUST THE MOUNTING OF THE
FIELD UNTIL THE INTERFERENCE
IS ELIMINATED.
7. Clutch Burnish
Install the belts per vehicle manufacturer
specifications. Run the engine at 2000-2500
RPM 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 the operating torque
capacity.
Note: To prevent electrical system
damage, use the vehicle A/C controls
to cycle the clutch.