4-46 Inspection, Maintenance and Adjustment
022-00028AE Operation and Maintenance Manual
7.
Perform bleeding procedure on other three wheels.
DRAIN AND REPLACE HYDRAULIC OIL
1.
Raise boom to its highest position. Tilt
bucket back as far as possible, and shut
down engine.
NOTE:
See “Fluid Capacities” on
page 4-5 for capacity.
2.
Position a catch tank beneath hydraulic
reservoir drain plug. Release pressurized
air from hydraulic oil tank by rotating air-
breather cap. (See Figure 11 on page 4-
10). Remove drain plug (Figure 85) from
bottom of reservoir. Allow all hydraulic oil
to drain out.
CAUTION!
Be certain that hydraulic oil has cooled before draining it. Hot oil could splash and cause burns.
Figure 84
AOO0090L
Figure 85
Figure 86
Figure 87
