Isuzu N-Series. Service manual — part 1271
C. The diagram of composing tipper with floating cylinder and connecting rod
1. the hinge point between arm and bottom frame (two places)
2. the hinge point between arm and bottom of lift cylinder (two places)
3. the hinge point between arm and drawbar (two places)
4. the hinge point between top lift cylinder and top frame (two places)
5. the hinge point between drawbar and top frame (two places)
6. the hinge point between top frame and bottom frame (two places)
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OWNER爷S MANUAL
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D. The lubrication diagram of drop side tipper with double cylinders
1. the hinge point between top cylinder and carriage (two places)
2. the hinge point between bottom cylinder and secondary frame (two places)
3. the hinge point between carriage and secondary frame (two places)
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Notice
荫
All the lubricate parts mentioned above must adopt auto general lithium grease No.2.
荫
Don't apply any grease to the surface of lift cylinder or piston lever. Wipe away the stains using dry silk fabric or a tow鄄
el.
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TRANSPORTATION AND STORAGE
1. When transported by railway or water, the tipper should be lifted using lifting equipment, in case of damages to the
products.
2. The products should be fastened to ensure security and avoid accidents during the transportation.
3. When the tipper is kept unused for a long time, keep it according to the rules about the cart refitting and chassis
maintenance.
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TROUBLE SHOOTING院
possible problems
analysis of reasons
solutions
Operational valve
is in the lifting po鄄
sition, but the car鄄
riage is not.
1.power take-off doesn't joggle
2.insufficient oil amount in the oil tank
3.malfunction of the control system
荫
lack of voltage or obstructed circuit
荫
lack of air pressure or air leakage
荫
electromagnetic valve malfunction
4.oil leakage of the hydraulic system
5.too much inner leakage of gear pump
6.directional control valve isn't shut
7.the plug doesn't recover the original position
when in the limited valve
8.too much leakage in the oil tank
9.the operational valve doesn't work
1.solve the gear engagement problems, repair or
change the power take-off.
2.put the oil in the tank according to the rules
3.solve the control system problems
荫
fully charge or connect the circuit
荫
inflate the system or repair the leakage parts.
荫
repair or change the electromagnetic valve
4.repair the oil leakage parts
5.change the gear pump
6.cheek if the plug is blocked up and adjust it
7.check and adjust the post guide and plug
8.change the gasket set or oil tank
9.repair or change the operational control valve
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possible problems
analysis of reasons
solutions
The carriage is not
lifted to the proper
position or doesn't
stop after being lift鄄
ed
1.shortage of hydraulic oil amount
2.the directional control valve isn't fully shut
3.one-way valve leakage
4.valve moves up and down when in limited
valve
5.inner leakage of the gear pump
1.fill up with the hydraulic oil
2.check, maintain and change for new ones.
3.check and change for new ones.
4.refit the limited valve.
5.change the gear pump.
The carriage moves
up and down when
lifted or is lifted too
slowly
1.air in the hydraulic system
2.the directional control valve isn't fully shut
3.some inner leakage of the gear pump
4.small holes on the oil tank filter are blocked up
5.one-way valve is blocked up
6.shortage of hydraulic oil
1.re-lift to let out the air
2.adjust the directional control valve
3.change the gear pump
4.check and change the oil filter and the hy鄄
draulic oil
5.repair and change the one-way valve
6.fill up with the hydraulic oil
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possible problems
analysis of reasons
solutions
The carriage cannot
descend
1.binding of the directional control valve plug
2.the directional control valve cannot open the
valve
3.leakage of the gas way leading to the de鄄
scending position of the directional control valve
or shortage of air pressure or malfunction of the
electric control valve circuit
1.refit the plug and clean the filth
2.repair the air leakage parts
3.check and repair the air way and circuit
The carriage de鄄
scend automatically
or too quickly or too
slowly
1.the directional control valve isn't fully shut
2.one-way valve isn't airproof
3.serious inner leakage of the hydraulic cylinder
4.the directional control valve retrieves oil too
slowly or too quickly
1.check and change the oil if it's dirty
2.check, repair and change
3.check and repair the gasket sets or change
the hydraulic cylinder
4.adjust the oil retrieving speed of the direction鄄
al control valve
direc tional control
valve leakage
1尧the oil jam in the hydraulic oil tank
2尧the gasket set wears off
3尧the valve fixed bolt loosens
1尧change the hydraulic oil and clean the plug
2尧change the gasket sets
3尧fasten the bolt
hydraulic cylinder
leakage
1尧oil-proof or gasket set wears away
2尧the scrapes on the surface of oil tank
1尧change the oil-proof or gasket sets
2尧check, repair and change for new ones.
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INSTRUCTIONS OF SIDE-DUMP TIPPER
1.Working Principles Graph院
油路
Oil way
气路
Air way
举升缸
Lift cylinder
多路阀
multi-pathway valve 限位阀 limit valve
取力器
power take-off 气控阀 air-control valve
储气筒
air-reserve tank
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