Toro LT3240 - Page 60

Issued: 01.04.11 Approved: Mod. No. 5060358 Sheet 60 of 64 Part No. 111-4431 (A)
ROPS CAB, AIR CONDITIONING AND HEATING INSTALLATION - MAINTENANCE Continued
Component Maintenance Work Monthly 6 Monthly Annually
Refrigerant circuit: Examine for abrasion and condition
Hose lines Carry out leak test with leak detector
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Connections Examine refrigerant quantity in the sight glass
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Refrigerant lling Examine cleanliness of ns
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Condenser Change every 2 years
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Dryer - lter Ensure that they are clear
Water drain Examine all parts for tightness
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Climatic unit in roof
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Compressor:
Magnetic clutch Examine starting of compressor
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Compressor Examine for noise - run free and listen
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Fan belt Examine for condition and tension
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Mounting bracket Bolt tightness
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Electrical connections:
Electrical cables Examine condition
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Plug connections Examine condition and rmness of connection
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General: Check all bolted connections for tightness
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Examine for repair:
To avoid unnecessary dismantling and / or double work, examine the system before beginning repairs.
Visual checks:
- Fastenings, fuses, cable connections, switches.
- Hoses for abrasion, kinking, squeezing, hose connections.
- Air ducts and mesh screens.
- Compressor hose connections, mounting points, drive belt tension, magnetic clutch, electrical connection.
Fault nding and repair:
Some faults can only be diagnosed and repaired by qualied personnel in air conditioning systems e.g., faults with the compres-
sor and lter.
Electrical faults:
- Air ducts and mesh screens.
- Compressor hose connections, mounting points, drive belt tension, magnetic clutch, electrical connection.
Mechanical faults:
- Check the operation of the ns.
- Check the dirty or blocked evaporator or condenser ns and for restricted air intake screen.
- Check loss of refrigerant.
- Check compressor.