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5-28
MAINTENANCE
SY155U Excavator OMM
Check the Air Conditioner Compressor Belt
CAUTION
• Make sure that the engine is off and that all
rotating parts inside the engine compartment
have stopped moving. Failure to do so could
result in injury.
• Do not perform engine maintenance when the
engine is hot. Hot engine oil or engine
components may cause severe burns.
• Allow the engine to cool before performing
engine maintenance.
Failure to follow this caution could result in injury.
1. Prepare the machine for checks and inspections.
See “Maintenance Safety” on page 2-5.
2. Open the appropriate access covers or compartment
doors. See “Doors, Panels, Covers, and Filler Cap”
on page 4-5.
3. Turn the battery disconnect switch to OFF. See
“Battery Disconnect Switch” on page 3-15.
0003613
Figure 5-43
4. Remove the two fasteners (1) that secure the belt
shroud (2).
0003681
Figure 5-44
5. Check the belt (3) for signs of damage.
6. Press down on the belt between the air conditioner
compressor pulley and the drive pulley. The belt
should deflect 0.20 in.–0.31 in. (5 mm–8 mm) when
pressed with a force of 43 lb-ft (58.3 N•m).
7. Adjust belt tension if necessary. See “Adjust the Air
Conditioner Compressor Belt” on page 5-28.
8. Install the shroud and secure it in place.
Adjust the Air Conditioner Compressor Belt
CAUTION
• Do not perform engine maintenance when the
engine is hot. Hot engine oil or engine
components may cause severe burns.
• Allow the engine to cool before performing
engine maintenance.
Failure to follow this caution could result in injury.
1. Prepare the machine for checks and inspections.
See “Maintenance Safety” on page 2-5.
2. Open the appropriate access covers or compartment
doors. See “Doors, Panels, Covers, and Filler Cap”
on page 4-5.
3. Turn the battery disconnect switch to OFF. See
“Battery Disconnect Switch” on page 3-15.
0003613
Figure 5-45
4. Remove the two fasteners and washers (1) that
secure the belt shroud (2).
5. Check for damaged pulleys and belt.
0003681
Figure 5-46
1
2
3
1
2
3
4
Содержание SY155U
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