Yuchai YC25-8, User Manual

Page: 168 / 205

Hydraulic Digger
5-38
Caution :No rotating the machine at any time during
vent the air
1) Run the engine with low-speed, loose the blowoff cock,
examine whether the oil outflow from the drain bolt
2) If it doesn’t have the oil outflow, take-down the drain bolt,
then immit the hydraulic oil into the crust of the motor
3) After vent the air, screw down the drain bolt
4) Last runs the engine with the low-speed, and turn the
frame of the machine to left/right about two times.
Caution: If it doesn’t vent the air which in the motor, it
maybe destroy the bearing of the rotating motor.
E. Vent the air which in the driving motor(when it vent
the oil from the shell of the driving motor)
1) Run the engine with low-speed, loose the blowoff cock. If
the right oil outflow, screw the bolt.
2) Run the engine with low-speed, make the operation
device rotating 90
0
,and let it lie in one side of the
pedrail.(See the picture)
3) Use the operation device uplift the machie, make one
side of the pedrail away the ground litter, and run the
pedrail 2 minute. Repeat do for the left/right pedrial, and
turn the pedrail forwards and backwards