Cub Cadet 8454 - Manual (Page 330)

CHAPTER 9 8454
9-16 D569-W02 May-2003
4) The compressor does not revolve or hard to revolve.
The vibration of belt is large.
The belt is sliding.
Sliding when revolving
Sliding when revolving
Sliding caused by the contamina-
tion around the magnetic clutch
Tension adjustment
Repair/replacement
Battery charging
Replacement of magnetic clutch
Replacement or cleaning the
surface of clutch.
Causes Checking Methods Action
1. Loosening of belt
2. Internal failure of compressor
3. Relation of magnetic clutch
3-1. Drop of battery voltage
3-2. Layer shot of coil
3-3. Oil invasion to the surface of
clutch
C. TROUBLE SHOOTING BY GAUGE
PRESSURE
569W919A
569W920A
a. Not Cool
1. Lack of refrigerant charging
Status: Not cool
Phenomena:
- The pressure of high /low pressure side is low.
- The bubble in sight glass is seen.
- Discharging temperature does not fall down.
Cause: Refrigerant leakage
Action: Check with gas leakage detector and repair
the leaked part and supplement the proper amount.
CONNECTION OF MANIFOLD GAUGE
: Exhaust the air by loosening the nut.
1. Connect the manifold gauge to the high/low pres-
sure connection section of the compressor.
2. Exhaust the air in the charging hose from the con-
tacting side of manifold gauge.
* Condition
Ambient temperature: 30 ~ 35°C (86 ~ 95°F)
Revolution of engine: 150 rpm
Blower: HI (Maximum revolution)
Thermo. switch: Colder
* Reference
1.5 ~ 2.0 kgf/cm 2
21.3 ~ 28.4 psi
1.5 ~ 2.0 kgf/cm 2
21.3 ~ 28.4 psi
Low pressure side
High pressure side
1 kgf/cm 2
14.2 psi
8 ~ 9 kgf/cm 2
113.8 ~ 128.0 psi
Low lack of refriger-
ant charging
High lack of refriger-
ant charging