wsm M108S Workshop Manual page 491

M108S, WSM
Insufficient Refrigerant
1. Symptoms seen in refrigerating cycle
- Both LO and HI pressure side (1), (2) pressures too low.
LO pressure side (1) : 0.05 to 0.10 MPa
HI pressure side (2) : 0.69 to 0.98 MPa
- Bubbles seen in sight glass.
- Air discharged from air conditioner sightly cold.
2. Probable cause
- Gas leaking from some place in refrigerant cycle.
3. Solution
- Check for leakage with electric gas leak tester (refer to "[1]
HANDLING OF SERVICE TOOLS" in this section) and repair.
- Recharge refrigerant to the proper level.
Checking Charge Refrigerant Amount" in this section.)
(1) LO Pressure Side
Excessive Refrigerant or Insufficient Condenser Cooling
1. Symptoms seen in refrigerating cycle
- Both LO and HI pressure side (1), (2) pressures too high.
LO pressure side (1) : 0.20 to 0.35 MPa
HI pressure side (2) : 1.96 to 2.45 MPa
2. Probable cause
- Overcharging refrigerant into cycle.
- Condenser cooling faulty.
3. Solution
- Clean condenser. (Refer to "7. CHECK AND MAINTENANCE"
at "G. GENERAL" section.)
- Adjust air conditioner belt to proper tension. (Refer to "7.
CHECK AND MAINTENANCE" at "G. GENERAL" section.)
- If the above two items are in normal condition, check refrigerant
quantity. (Refer to "(4) Checking Charge Refrigerant Amount"
in this section.)
NOTE
• If excessive refrigerant is to be discharged, loosen manifold
gauge LO pressure side valve and vent out slowly.
(1) LO Pressure Side
10-S14
2
(0.5 to 1.0 kgf/cm , 7.1 to 14.2 psi)
2
(7 to 10 kgf/cm , 99.6 to 142.2 psi)
(2) HI Pressure Side
2
(2.0 to 3.5 kgf/cm , 28.4 to 49.8 psi)
2
(20 to 25 kgf/cm , 284.5 to 355.6 psi)
(2) HI Pressure Side
CABIN
(Refer to "(4)
W1016070
W1016402
KiSC issued 05, 2012 A