Compressor Clutch: Service and Repair
Compressor ClutchHITACHI A/C
3) Removing clutch ASSY
(1) Remove the 8 mm nut and hub nut using CLUTCH TIGHTENER (925770000) and 13 mm socket.
Fix the CLUTCH TIGHTENER securely when turning the socket wrench.
(2) Remove the clutch armature using CLUTCH ARMATURE REMOVER (926130000).
(3) Remove the spacer ASSY.
Retain the parts for reassembly.
(4) Remove the 40 mm wedge ring using snap ring pliers.
Do not reuse the removed part.
(5) Remove the rotor.
(6) Remove the 5 mm screw fixing the lead wire clamp using standard screwdriver.
(7) Remove the 50 mm wedge ring using snap ring pliers.
Do not reuse the removed part.
(8) Remove the stator.
Check till terminal for damage. Do not damage the terminal when storing.
(9) Remove the key.
Do not reuse the removed part
PANASONIC A/C
4) Installing clutch ASSY
(1) After installing the stator, install 50 mm wedge ring using snap ring pliers.
a. Do not damage the coil hearing portion.
b. Install the wedge ring with its tapered surface facing up.
(2) Tighten 5 mm x 8 screws to secure the clamp using Phillips-head screwdriver and torque driver.
Tightening torque:
2.7 - 3.3 N-m (0.28 -0.34 kg-m, 2.0 - 2.5 ft-lb)
a. Thoroughly wipe off dirt and oil from the clamp mounting surface on the compressor side.
b. Do not damage the lead and earth wires.
c. Avoid interference of the lead and earth wires with the pulley.
(3) Carefully install the rotor while rotating it by a hand.
Remove dirt and oil from the armature contacting surface.
(4) Install the 40 mm wedge ring using snap ring pliers.
Install the wedge ring with its tapered surface facing up.
(5) Install the key to the key groove in the shaft.
Make sure the key is free from burrs or any other damage.
(6) Install the spacer ASSY using thickness gauge.
Spacer sizes:
Thickness 0.1 mm (0.004 in), 0.3 mm (0.012 in), 0.8 mm (0.031 in)
Adjust the spacer ASSY so that the gap between the pulley and armature (armature gap) is within 0.5 to 0.8 mm (0.02 to 0.031 in).
(7) Install the armature while aligning it with the groove.
Remove dirt and oil from the rotor contacting surface.
(8) Install the 8 mm nut and hub nut using CLUTCH TIGHTENER (925770000), torque wrench and 13 mm socket.
Tightening torque:
19 - 21 N.m (1.9 - 2.1 kg-m, 14 - 15 ft-lb)