Operation and maintenance manual

DX140R/DX140LCROperation
3-10
Hydraulic System Warm-up – Cold
Weather
1. Run engine at "LOW IDLE" (no load) for five minutes
(Figure 16).
2. Run engine for approximately five minutes set at the
middle of the speed range, without a load (Figure 17).
3. Move safety lever to "UNLOCK" position.
4. Slowly cycle boom, arm and bucket cylinders about five
times without a load to circulate the oil through the system.
Do this for five minutes.
HAOB290L
Figure 16
HAOB410L
Figure 17
Lock
Unlock
EX1300566
Figure 18
FG014408
Figure 19