LiuGong CLG835H, Service Manual

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January 24, 2017 Structure Function Principle
CLG835H Brake system
Main parameters of brake cylinder
Check the performance of service brake
1. Adjust the tire pressure of machine to the
specified value, and lay down the bucket lev-
elly at approx. 300mm\ 11.8in from the
ground. And confirm the machine have the
performance of good service brake.
2. Start the engine, and drive the machine
toward and on the 25% slope (14°2') and, the
road surface shall be flat and dry.
3. Depress the service brake pedal, stop the
machine and place the shift control lever to
neutral position, and engine won't cut-out.
4. Keep the service brake state and check
whether machine will move.
Exhaust of brake system
1. Stop the machine on a level and straight
road.
2. Turn the shift lever to the neutral position,
start up the engine and let it run at idle
speed, activate the parking brake switch;
switch off the low-pressure alarm lights for
service brake and for parking brake, stall the
engine and then activate the electric lock.
3. Put a transparent hose around the exhaus-
tion nozzle of the left/right wheel brake of
front drive axle and the other end of the hose
into the oil pan.
4. It needs the coordination of two persons, one
is to loosen the exhaustion nozzle to observe
the exhaust situation; the other depresses
the pedal firmly after stepping on it several
times continuously until the the liquid column
without bubbles is discharged, tighten the
exhaustion nozzle.
5. Repeat these steps to discharge the gas from
the rear axle.
Items Parameters
Service
conditions
Fully release the
pressure
5.2MPa\ 754psi \
Maximal spring
force 6422MPa\
931190psi
\
Rated capacity 42ml\ 0.011US gal \
Working pressure 16MPa\ 2320psi
Operating fluid
Anti-wear hydrau-
lic oil
HM46/HV46
Before checking the performance of service
brake, you shall inspect the performance of
parking brake so as to guarantee parking
safety and the effects of emergency brake.
P18H00052
If the machine moves during inspection, it
may cause personal injury.
Bleeding position at front/rear axle
P18H00053
Exhaust hole