Doosan DL200, Operation And Maintenance Manual

Page: 186 / 256

OP000509 Inspection, Maintenance and Adjustment
4-42
250 HOUR / MONTHLY SERVICE
Perform All Daily, 10 Hour and 50 Hour
Service Checks
Check Engine Air Intake Precleaner
1. The engine is equipped with a precleaner. Dust,
insects, rainwater etc., can be present in the air. The
precleaner collects this material and discharges it. This
prevents material from being drawn into air cleaner.
The precleaner does not need periodic replacement.
Drain Water From Hydraulic Oil Tank
1. Position machine on firm, level ground. Lower boom
and position bucket on ground. Shut down engine.
2. Position a container under hydraulic tank drain plug.
Open tank breather cap (See Figure 20 on page 4-25).
Loosen drain valve at bottom of tank (Figure 60). Allow
all water and sediment to drain out. Tighten drain
valve.
NOTE:
Dispose of drained fluids according to local
regulations.
Figure 59
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. Unscrew the cap of
breather on the top of hydraulic tank to allow
pressurized air to vent. After pressure has been
released, it is safe to remove either the fill cap or
service covers.
FG008102
Figure 60