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MAINTENANCE
4.10.8 WINDSHIELD WASHER RESERVOIR - CHECK FLUID LEVEL
Legend for illustration Z24060
(1)
Access door to the water reservoir of the windshield washer system and to the dryer
cartridge of the air conditioning
(2)
Water reservoir for windshield washer
(3)
Cab air filter
(4)
Cab blower
(5)
Dryer cartridge of the air conditioning
(6)
Sight glass for checking refrigerant filling
(7)
Shut-off valve for dryer cartridge replacement
(8)
Condenser blower
Fill the water reservoir (2) with clear water, add antifreeze and
cleaning agent as necessary. Filling capacity of the reservoir
approximately 7 liter. Check washer and wiper system for
leakages and carry out a functional test of both systems.
4.10.9 AIR CONDITIONING FOR OPERATOR'S CAB - CHECK
REFRIGERANT LEVEL
Checking the refrigerant level, illustration Z24060:
Switch on air conditioning equipment and run at maximum
capacity for approx. 5 minutes.
Observe inspection glass (6). A refrigerant flow loaded with
bubbles or foam indicates a lack of refrigerant. In this case
well equipped refrigeration specialists must check the circuit
for tightness and must add the missing quantity or refrigerant.
If more than 200 grams per year are lost, the oil level of the
refrigerant compressor must also be checked. This is a spe-
cial procedure and must be carried out by refrigeration spe-
cialists only. Isolated small bubbles in the inspection glass
may be neglected. Even with an absolutely tight equipment a
certain amount of refrigerant is lost through the walls of the
hoses. Therefore a small annual replenishment of the refrig-
erant quantity is normal.
The dryer cartridge (5) must be replaced after every 1000
operating hours or once a year by refrigeration specialists.
Clean the filter mat of condenser blowers (8).
REMARK
Servicing of the air conditioning systems is restricted to work-
shops especially equipped for this purpose. Refer to the separate
booklet "AIR CONDITIONING" in Service Literature Binder – Vol-
ume 2 for more information.
4.10 EVERY 250 OPERATING HOURS OR MONTHLY
331
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