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5-16
The most suitable temperature for the hydraulic
oil is about 50˚C (112˚F ).
It can cause serious trouble in the hydraulic
s y s t e m b y s u d d e n o p e r a t i o n w h e n t h e
hydraulic oil temperature is below 25˚C (77˚F ).
The temperature must be raised to at least
25˚C (77˚F ) before starting work.
Run the engine at low idling for 5 minutes.
Speed up the idling and run the engine at mid-
range speed.
Lift the forks slightly and tilt the mast forward to
the stroke end to relieve hydraulic pressure.
Do not leave hydraulic pressure relieved for
Do not leave hydraulic pressure relieved for
more than 30 seconds.
more than 30 seconds.
Tilt back to the stroke end to relieve hydraulic
pressure.
Do not leave hydraulic pressure relieved for
Do not leave hydraulic pressure relieved for
more than 30 seconds.
more than 30 seconds.
Repeat the procedure 3) - 4) several times until
warm-up operation is completed.
8. WARMING-UP OPERATION
8. WARMING-UP OPERATION
※
1)
2)
3)
※
4)
※
5)
5 minute
warming-up
Gear selector lever
Parking brake switch
250D9OP08A