Doosan DL200, Руководство по эксплуатации и обслуживанию

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OP000509 Inspection, Maintenance and Adjustment
4-68
3. Without starting engine, operate controls to dump
bucket. (Figure 107). Then operate controls to lower
boom. (Figure 108). This will drain oil out of boom and
bucket cylinders.
4. Replace full flow hydraulic filters as described under
“Loosen breather cap on hydraulic tank. (See Figure 20
on page 4-25).” on page 4-61.
5. Remove and clean pump inlet strainer (Figure 109)
inside hydraulic tank.
A. Carefully remove bolts and cover (1), from top of
hydraulic oil tank. There is a spring (2) under the
cover that will force the cover up.
B. Remove spring (2, Figure 109) and suction filter
(4) by pulling on rod (3).
C. Clean in side and outside of strainer. Replace
strainer if it is broken.
D. Position strainer on boss portion of suction pipe.
E. Fill hydraulic oil tank. Check level using sight
gauge on side of tank.
F.
6. Install tank drain plug. Refill tank by pouring oil in
through breather cap opening. Install and tighten
breather cap.
7. Start engine and operate controls to raise and lower
bucket a few times. (Figure 110). Raise and lower
boom a few times. (Figure 111). Lower bucket to
ground.
8. Check tank sight gauge. (See Figure 19 on page 4-25).
Oil level must be between upper limit and lower limit
on sight gauge. Remove breather cap and add oil if
necessary.
Figure 108
FG006228
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1
2
3
Figure 109
Figure 110