COMPRESSOR — Model NVR 140S — Compressor Clutch Replacement, Inspection, Adjustment, Break-In
HA-45prose procedureCOMPRESSOR — Model NVR 140S (ATSUGI make)
Compressor Clutch
REPLACEMENT
IMPORTANT
When removing center bolt, hold clutch disc with clutch disc wrench.
Using clutch disc puller, clutch disc can be removed.
Bend down pawl of lock washer.
When removing pulley, remove lock nut with nut wrench.
INSPECTION
Clutch disc
If the contact surface shows signs of damage due to excessive heat, the drive plate and pulley should be replaced.
Pulley
Check the appearance of the pulley assembly. If the contact surface of the pulley shows signs of excessive grooving due to slippage, both the pulley and drive plate should be replaced. The contact surfaces of the pulley assembly should be cleaned with a suitable solvent before reinstallation.
Coil
Check coil for loose connection or cracked insulation.
ADJUSTMENT
IMPORTANT
When assembling clutch disc, adjust disc-to-pulley clearance with shims.
BREAK-IN OPERATION
IMPORTANT
When replacing compressor clutch assembly, do not forget break-in operation, accomplished by engaging and disengaging the clutch about thirty times. Break-in operation raises the level of transmitted torque.
| Specification | Value |
|---|---|
| Disc-to-pulley clearance | 0.3 - 0.6mm (0.012 - 0.024 in) |
| Available adjusting shimsStack as needed. | 0.1 / 0.3 / 0.5 / 0.8mm (0.004 / 0.012 / 0.020 / 0.031 in) |
| Break-in clutch engagementsEngage / disengage clutch. | ≈ 30cycles |
Disc-to-pulley clearance
0.3 - 0.6mm (0.012 - 0.024 in)
Available adjusting shimsStack as needed.
0.1 / 0.3 / 0.5 / 0.8mm (0.004 / 0.012 / 0.020 / 0.031 in)
Break-in clutch engagementsEngage / disengage clutch.
≈ 30cycles