Baroness GM2810, Service Manual

Page: 80 / 185

Apply the parking brake, and then lower the
operating machine.
Stop the engine, and then remove the key.
Warning
Be sure to depressurize the hydraulic system
before inspecting or repairing it.
Important
Be sure to clean the circuit connecting part to
be repaired.
Drain the oil from the hydraulic tank.
Drain the oil from the hydraulic hoses and
piping while the oil is still warm.
Replace the hydraulic oil and filter.
Check the hydraulic tank and suction filter,
and clean.
Fit the hydraulic hoses, piping and hydraulic
fittings that have been removed.
Caution
Use only the specified hydraulic oil.
Use of other hydraulic oil may lead to the
failure of hydraulic circuit or the like.
Supply new hydraulic oil.
Make sure that the traveling pedal and all the
drives of the operating machine are in
neutral position.
Start and run the engine for 10 seconds to
check that there is no oil leakage or else.
Perform this operation twice.
Start the engine.
Let it run idle for at least two minutes, then
run at the maximum speed for one minute.
Raise and lower the operating machine, and
turn the steering wheel side to side.
Stop the engine, and check for any oil
leakage.
Check the amount of hydraulic oil. Add as
necessary.
Operate for two hours under normal
operating conditions.
Check the condition of hydraulic oil.
If it is contaminated, repeat the procedures
from 1 through 15 until the oil becomes
clean.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
If no abnormality is found, operate normally
and maintain according to the maintenance
schedule.
Air bleeding
Caution
When you replace or repair the motor, pump,
cylinder, etc., make sure that the hydraulic
system is properly connected.
Make sure that air is bled to avoid
malfunction.
Important
When you replace or repair hydraulic parts, be
sure to replace the oil filter.
Move the machine to level surface.
Apply the parking brake, and then lower the
operating machine.
Stop the engine, and then remove the key.
Make sure that the hydraulic equipments and
hydraulic fittings are securely tightened.
When there is any malfunction of the
hydraulic system or any dirt, clean the
hydraulic system, hydraulic tank and suction
filter, and then replace the hydraulic oil.
Check the amount of hydraulic oil. Add as
necessary.
Make proper adjustment and connection,
and make sure that there are neither broken
parts nor oil leakage.
Make sure that the traveling pedal and all the
drives of the operating machine are in
neutral position.
Start and run the engine for 10 seconds to
check that there is no oil leakage or else.
Perform this operation twice.
Warning
Check " "Jacking up the machine" (Page 3-10)
" when you jack up the machine.
Raise all the wheels of the machine, and
then use jack stands or any proper blocks to
support it firmly.
Make sure that the traveling pedal and all the
drives of the operating machine are in
neutral position.
18.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
GM2810
Hydraulic system
Page 4-52
General inspection and repair