Maintenance
Engine
136 9821/6100-4 136
6. Remove the cap from the oil filter housing (if applicable).
7. Remove and discard the oil filter cartridge.
8. Fit a new filter with new gaskets.
9. Fit and tighten the cover on the oil filter housing (if applicable). Tighten the cover to the correct torque value.
10. Add the correct specification and quantity of oil.
11. Check the oil level.
12. Install the oil filler cap.
13. Close and secure the engine cover.
14. Operate the engine at idle speed until the oil pressure low warning light has extinguished and the new filter
has primed before the engine speed is increased above idle speed.
15. Check for leaks.
16. Check the oil level when the oil has cooled.
16.1. Fill with clean engine oil, if necessary.
Drive Belt
Check (Condition)
Notice: A drive belt that is loose can cause damage to itself and/or other engine parts.
1. Make the machine safe with the excavator lowered.
Refer to: Maintenance Position (Excavator Arm Lowered) (Page 122).
2. Open the engine cover.
Refer to: Engine Compartment Cover (Page 125).
3. Make sure the deflection at the mid point between the alternator and the crankshaft pulley is correct.
Refer to: Torque Values (Page 181).
4. If necessary, adjust the drive belt:
4.1. Loosen the top and bottom mounting bolts.
4.2. Move the alternator so that deflection at the mid point is correct.
4.3. Tighten the top mounting bolt, then the bottom mounting bolt. Refer to Figure 103.
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