Zetor UTILIX CL Operator's Manual page 120

3. Diagnosing malfunctions
(1) Tracing faults
SYMPTOM
Abnormal sound
Abnormal revolution
1.Compressor
Refrigerant or oil
leakage
Excessivepressure
SYMPTOM
Weak from
pressure or Don't
work
2. Motor
Unable to control
the fan
CABIN
CONDITION
Inlet sound
Outlet sound
Inlet cause
Outlet cause
Refrigerant or oil
leakage
Low, High
pressure
CONDITION CAUSE
Air inlet clogged
Evaporator freezing
Motor is normal
Ventilator switch
damage
Compressor
Motor failure
Motor is abnormal
Wire cut
Air leakage Duct leakage
Air volume control switch
Motor
failure
Motor is abnormal Motor failure
119
CAUSE
Insufficient Lub.
Belt tension release
Release the bracket
Clutch fail
Damaged parts
Slip the clutch
Not Lub.
Belt tension released
Sealing washer
damaged
Head bolt released
D-ring damaged
Insufficient refrigerator
Compressor
REMEDY
Remove
Controlling minimum
pressure
Replace the switch
Replace
Replace
Replace
Check, tighten
Check, tighten
Replace
REMEDY
Replenish
Adjust
Tighten the bolts
Check
Check, replace
Check, replace
Replenish
Adjust
replace
Tighten the bolts
Replace
Adjust
Replace