022-00028AE Operation and Maintenance Manual Inspection, Maintenance and Adjustment 4-31
DRAIN WATER FROM HYDRAULIC OIL TANK
1. Position machine on firm, level ground.
Lower boom and position bucket on
ground. Turn "Off engine.
2. Position a container under hydraulic
reservoir drain plug. Open reservoir
breather cap (See Figure 11 on page 4-
10). Loosen drain valve from bottom of
reservoir (Figure 56). Allow all water and
sediment to drain out. Tighten drain valve.
CLEAN AIR CLEANER
1. Locate the air filter assembly (Figure 58).
Remove access cover and remove outer
element of air filter assembly.
NOTE:
If indicator light on instrument
panel comes "ON," this
indicates that air cleaner needs
to be serviced.
NOTE:
Replace outer element every
1,500 hours of service.
WARNING!
Be certain that hydraulic oil has cooled before draining water and sediment. Hot oil could splash
and cause burns.
The hydraulic tank is pressurized. Press button in center of breather to allow pressurized air to
vent. After pressure has been released, it is safe to remove either the fill cap or service covers.
CAUTION!
Never remove air cleaner element while
engine is running. This will allow dirt to be
sucked into engine and cause serious
engine damage. Always turn engine "OFF"
before servicing air cleaner.
AOO0090L
Figure 56
AOO0230L
Figure 57
Figure 58
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