OPERATION
d. Adjust tension on air conditioning (A/C) compressor belt. Refer to Tensioning Air Conditioner (A/C)
Compressor Belt, page 257.
e. Distribute A/C refrigerant by cycling A/C switch. Refer to Air Conditioning Compressor Coolant Cycling,
page 87.
f. Check the entire A/C system for leakage a t the beginning of each season.
2. Perform annual maintenance. Refer to 5.7.11 Maintenance Schedule, page 313.
Air Conditioning Co mpressor Coolant Cycling
Cycle A/C switch to distribute the air conditioning (A/C) refrigerant oil as follows:
IMPORTAN T:
Perform th
e following steps whenever the machine is first started after storage for more than one week:
1. Turn blower switch (B) to first position, turn
temperature control switch (A) to MAXIMUM heating,
and A/C cont rol (C) to O FF.
2. Start engine, and operate at low idle until engine
is warm.
3. Click A/C switch (B) from OFF to ON for one second,
then back to OFF for 5 to 10 seconds. Repeat this step
ten times .
Figure 4.6: Climate Control
A - Temperature Control B - Blower Switch
C-AirC
onditioning Switch
4.3.4 Daily Check
1. Check the machine for leaks or any parts that are missing, broken, or not working correctly.
NOTE:
Use proper pr
ocedure when searching for pressurized fl uid leaks. Refer to Hoses and Lines , page 298.
2. Clean the win
dows and mirrors to be sure of good visibility in all d ire ctions. Stand on the platform to access th e
rear window.
Hold onto the handholds on the cab front corners and stand on the header anti-slip strips to wash
the front win
dow.
3. Clean all li
ghts and refle ctive surfaces to ma intain visibility to others.
4. Perform dai
ly maintenance. Refer to 5.7.11 Maintenance S chedule, page 313.
169890 87 Revision A
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