Isuzu N-Series. Manual — part 1228
and oil pipe to prevent the dirt from getting inside;
b援 Install the hydraulic pump and motor smoothly, pay attention to the alignment, add the hydraulic oil to the oil pump at
full level;
c援 Install the oil pipe and seal ring, add the hydraulic oil to the oil pipe at full level, then connect them with the motor;
d援 Fill the fuel to the fuel tank till fuel mark position;
e援 Start the engine, and idle for 10 minutes (oil pump is in neutral position, agitating tank is not running, check the noise)
f援 Slowly pull the control level, then agitating tank turns clockwise for 20 minutes (unload condition);
g援 Check the oil leakage of all positions, and check whether the fuel tank level decreases, add it to full if it decreases.
3援 Re-tighten all the reducer connection bolts every month with the working wrench.
4援 The starting speed of agitating tank should not be very high, it should be increased slowly, or the reducer maybe
damaged.
5援 Check the lubrication of the hydraulic oil pump drive shaft weekly, and grade 2 lithium based grease can be used.
6援 Check the running of cooling fan weekly (pull out the connector of the temperature sensor, then short-circuit the inner
terminal of the connector with cable to see whether the fan rotates or not, if it runs, then put back the connector, or re鄄
pair should be carried out).
7援 Check the cleanness of cooling fan outer surface weekly to keep the good ventilation effect.
8援 Lubrication for rotary locations:
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Parts for lubrication
Lubrication quantity
Lubrication period
Roller
2
Everyday
Luffer
1
One week
Drive shaft
1
One week
Operation mechanism
10
One week
Track
2
One month
Branch pipe
1
One month
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郁.Notice during using
1援 Notices have to be keep in mind at vehicle driving:
a援 Lock the take-up trough;
b援 Pull the operation handle in the vehicle rear to agitating position.
2援 Notices have to be keep in mind at vehicle operation:
a援 Engine should be started for pre-heating at idle before the agitating;
b援 Please don't depress the accelerator pedal in the driving cab when the vehicle rear operation is undergoing;
c援 Don't get approach to the stuff funnel or agitating tank port, and don't peep inside;
d援 Lock the take-up trough;
e援 Never pull the handle with a rush in operation;
f援 Clean the inner side of agitating tank every time when you finish the working.
3援 Notices have to be keep in mind during cleaning and maintenance:
a援 When eradicate and wash the concrete on the agitating tank port, rear bracket, support wheel etc, the control level
must in stop position and stop engine at the same time;
b援 When performing the repair to agitating tank, support wheel, reducer, hydraulic pump, drive shaft etc, or during oil
filling or changing, the control level must in stop position and stop engine at the same time;
c援 Discharging the air from the system while changing the hydraulic oil;
d援 Check the oil level after several minutes after fill oil to the reducer, add it if the level decreases.
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4援 Notices have to be keep in mind during eradicate the concrete from the inner of agitating tank:
a援 Put the rear control level to neutral position and stop the engine, take the key with the driver to prevent the accident
when the others start the vehicle during the inner agitating tank operation is undergoing;
b援 When doing the eradicating, it should be done symmetrical from left and right side step by step to avoid the danger
occurs when the agitating tank turns. If there is much concrete, then let the position with the concrete be just below.
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吁.General malfunction and troubleshooting
General malfunction
Cause
Troubleshooting method
Feeding funnel blockage
Feeding agitating is not symmetrical, then
feeding of "raw material" is too fast
Dredge it with tool, and control the speed of
feeding
Agitating tank can't rotate.
1.The oil pump supply is not enough, which
results in the powerless
Change the filter, check the oil pipe, check
whether the fuel inside is enough, and check
whether there is air leakage on the intake pipe
of fuel tank
2.The hydraulic oil is too dirty, inner leakage
inside the manual servo valve or damping
orifice blocks, which causes the hydraulic
pump pressure is not enough, inner leakage
of the hydraulic pump
Change the hydraulic oil and clean the hy鄄
draulic oil tank, hydraulic pump, hydraulic
motor and change the "O" ring
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General malfunction
Cause
Troubleshooting method
Agitating tank can't rotate.
3.The inner pin shaft of the manual
servo valve is broken, hydraulic oil
pipe is broken and it's out of control
If the malfunction can't be solved immediately
when the concrete is already put into the agitating
tank, the troubleshooting method 1.open the check
port of the agitating tank, clean the concrete to the
outside with hoe and shovel, meanwhile wash it
with high pressure water, and don't let the concrete
be solid on the tank. Then, check the manual servo
valve, hydraulic oil pipe and control mechanism;
method 2, conducting the hydraulic oil from the
other helpful agitating truck to the motor of failure
truck for discharging the concrete with three emer鄄
gency oil pipes, after the method is same as above
Agitating tank rotation
is too slow
The hydraulic oil is too dirty, the oil in鄄
take is not enough
Clean or change intake filter of hydraulic oil tank,
and change the hydraulic oil at the same time
Oil leakage in the hydraulic system
Repair or change the gasket or smear sealant glue
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General malfunction
Cause
Troubleshooting method
Operation mechanism gets stuck
Repair
Output power is not enough
Repair
Concrete slump constant is too slow
Add water properly, agitating tank is working as
15r/min, and then reverse it to output the stuff
Agitating tank rotation
is too slow
Vane wears seriously
Repair or change
No output while agitating
tank is working
Oil intake filter blockage
Clean or change oil filter
Continuous working time is too light
Stop for cooling
Scrap iron or other objects in the
hydraulic motor
Repair or clean
noise
Air intake of oil pump
Bubble in the oil
Oil temperature
is too high
Hydraulic motor noise
Oil quantity inadequate
Air filter blockage
Oil adding
Clean or change
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General malfunction
Cause
Troubleshooting method
Scrap iron or other objects in the hydraulic motor Repair or clean
Too many sundries in the reducer
Change gear oil or repair
Hydraulic motor noise
Hydraulic pump inner noise Scrap iron or other objects in the hydraulic pump Repair or clean
noise
Reducer inner noise
Serious abrasion
Repair
Operation mechanism is not
working smoothly
Control level deforms seriously
Calibrate and adjust the screw
bar
Corrosion or concrete gets stuck
Get rid of the rust and concrete,
and fill grease
Agitating tank fluctuates up
and down
The race and supporting roller wears asymmetri鄄
cal
Repair or change
Clip sleeve is over loose
Adjust the clip sleeve nut
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