4-54 Inspection, Maintenance and Adjustment K1000896E Operation and Maintenance Manual
3.W
ithout starting engine, operate controls to dump bucket. (Figure 95). Then operate controls to lower
boom. (Figure 96). This will drain oil out of boom and bucket cylinders.
4. Replace full flow hydraulic filters as described under “Hydraulic Full Flow Filter Replacement” on
page 4-27.
5. Install reservoir drain plug. Remove the upper cover of the hydraulic oil tank. Refill reservoir by
pouring oil in through the upper cover opening. Install and tighten the upper cover.
6. Start engine and operate controls to raise and lower bucket a few times. (Figure 97). Raise and lower
boom a few times. (Figure 98). Lower bucket to ground.
7. Check reservoir sight gauge. (See Figure 12 on page 4-12). Oil level must be between upper limit
and lower limit on sight gauge. Remove breather cap and add oil if necessary.
CHECK BRAKE ACCUMULATOR
Test the brake accumulator for proper precharge of Nitrogen gas:
1. Park the machine on a level surface, apply the parking brake, lower the attachment to the ground.
WARNING!
Pressurized Nitrogen gas in brake accumulator may explode causing serious injury or death.
Never service brake accumulator unless properly trained.
Figure 95 Figure 96
Figure 97 Figure 98
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