Troubleshooting

TROUBLESHOOTING / Troubleshooting B
T5-7-115
Replace.
Broken clutch bearing.
Contact or slip due to poor air gap.
Faulty idle pulley bearing.
Saggy belt.
Refer to the Cooling Circuit
Troubleshooting Table on
page T5-7-100.
Refer to the Cooling Circuit
Troubleshooting Table on
page T5-7-100.
Loose screws.
Replace.
Broken valve.
Blown gasket.
Abnormal internal noise.
Vibration due to saggy belt.
Loose screws.
Replace.
NOTE:
1. Do not quickly decide that oil is leaking when a stain around the clutch and/or gasket is found. A
slight oil seepage will appear due to the seal construction. However, this oil seepage will no
t
cause malfunction. Accurately check whether oil is leaking or seeping only.
2. When gas detector is used in the high sensitivity range, normal gas leaks from rubber hose sur-
face may be detected. As long as the specified rubber hoses are used, the problem should no
t
occur. (In case a large leaks is detected, the hose may be broken.)
3.
A
fter allowing the compressor to idle for 10 to 15 minutes, normal pressure difference between
high-pressure side and low-pressure side is 0.5 MPa (5 kgf/cm
2
) or less. When the clutch is
turned OFF, the pressure difference between high-pressure side and low-pressure side will dis-
appear within about 10 seconds.
Broken clutch bearing due to overly tightened belt.
Replace.
Replace.
Shaft does n’o rotate.
Shaft rotates draggy.