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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.
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 3-11)
" 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.
Start the engine and depress the traveling
pedal while it is running at low rpm.
The charge pump sucks oil, air in the
hydraulic system will be bled in about 30
seconds,and then the circuit will be filled with
oil.
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After the hydraulic circuit is filled with oil,
operate the up/down lever and switches to
operate the up/down cylinder several times.
Stop the engine immediately when the
cylinder does not move within 10 to 15
seconds or if there is any noise from the
pump. And then check the cause.
Then carry out the following inspections.
Loose, malfunction of the filter or suction
line
Loose, malfunction of the hydraulic metal
fitting of the pump
Block of the suction line
Block of the charge relief valve
Malfunction of the charge pump
Proceed to the following operation when the
up/down cylinder moves within 10-15
seconds.
Operate the traveling pedal for forward and
reverse to check if the wheels rotate in
correct direction.
When the wheels rotate in wrong direction,
stop the engine and then swap the lines
for the motor to correct rotation direction.
Stop the engine when the rotation
direction is correct.
Return the traveling pedal into the neutral
position.
Check neutral of the traveling and make
adjustment. (See the Owner's Operating
Manual)
Lower the machine to the ground.
Carry out the following operations when the
traveling pump or the wheel motor has been
removed.
Run for 10 minutes so as to rotate the
wheels slowly.
Then, gradually increase operation load
while running for 10 minutes.
Stop the machine, check the amount of
hydraulic oil and add it as necessary.
Make sure that there is no oil leakage.
Check all of the connections.
Check that the traveling is in neutral
position.
When any adjustment is needed, raise all
wheels of the machine, and then use jack
stands or any proper blocks to support it
firmly.
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FS900
Hydraulic system
Page 4-42
General inspection and repair
Summary of Contents for FS900
Page 1: ...Riding Sweeper Service Manual Serial No FS900 10001 Ver 1 0...
Page 4: ...FS900 Contents...
Page 10: ...FS900 Safety Page 1 6 Safety Signs and Instruction Signs...
Page 11: ...Waste Disposal Page 2 2 About the Waste disposal Page 2 2 Disposal FS900 Disposal Page 2 1...
Page 28: ...FS900 Maintenance standards and maintenance Page 3 16 Greasing...
Page 74: ...FS900 Hydraulic system Page 4 46 Inspection and repair of each section...
Page 98: ...FS900 Electrical system Page 5 24 General inspection and repair...
Page 118: ...FS900 Main body Page 6 20 Inspection and repair of each section...