Zetor UTILIX HT 45, Руководство оператора

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1. Checking the air conditioning system.
1 - Economic friendly refrigerant : R134a 0.7~0.85 kg.
The presence of air and water in the system could jeopardize its efficiency.
- The air is uselessly compressed by the compressor and no cooling effect is produced.
- The moisture has a tendency rise to obstructions which prevent the cooling efficiency.
2 - Check belt tension ; when finger pressure is applied to the mid-point between both pulleys.
3 - Condenser fins must always be duly clean using water or an air set.
2. Checking the air conditioning system charge
(1) Check the refrigerant charge.
A. Run the engine at 1500 rpm.
B. Set the air conditioning system in the coldest for 5 minutes.
C. Check sight glass for clear sight or cloudy.
Caution: If the air conditioning system is operated without being charged, The lubrication in
the compressor can cause damage.
3. Diagnosing malfunctions
(1) Tracing faults
SYMPTOM CONDITION CAUSE REMEDY
1.Compressor
Abnormal sound
Inlet sound
Outlet sound
Insufficient Lub. Replenish
Belt tension release Adjust
Release the bracket Tighten the bolts
Clutch fail Check
Abnormal revolution
Inlet cause
Damaged parts Check, replace
Slip the clutch Check, replace
Not Lub. Replenish
Outlet cause Belt tension released Adjust
Refrigerant or oil
leakage Refrigerant or oil
leakage
Sealing washer
damaged
replace
Head bolt released Tighten the bolts
D-ring damaged Replace
Excessivepressure
Low, High
pressure
Insufficient refrigerator Adjust
Compressor Replace
CABIN
110