JAC Trucks. Manual — part 26
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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遇. Attached accessories list
No.
Name
Model
Quantity
1
Jack
QYL25T
1
2
Spare tire handle
1
3
Multi-purpose handle
1
4
Wheel tire sleeve
1
5
Tool kit
1
6
Open end spanner
10*12
1
7
Open end spanner
14*17
1
8
Open end spanner
19*22
1
9
Double head screwdriver
渍6
1
10
Double head screwdriver
渍8
1
11
Flexible spanner
250mm
1
12
Pliers
200mm
1
13
Grease filling gun assembly
R400g
1
Remark: advise to buy 2 pieces of 渍25伊5m high pressure oil pipe and 2 pieces of 渍19伊5m low pressure oil pipe for e鄄
mergency when your company purchases 2 same model agitating trucks. They are used under the failure that the trans鄄
portation trucks with concrete can't output the stuff, connect the hydraulic oil from the other same model's oil pump,
then reverse the roller tank for outputting the stuff. The two 渍25伊5m pipes are clockwise and counterclockwise high
pressure oil pipe, the one 渍19伊5m pipe is low pressure oil return pipe.
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喻. Service and quality guarantee
1. Agitating truck quality guarantee principle
The series agitating truck produced by Anhui JAC Special Automobile Company Ltd complies with the "quality guaran鄄
tee term" of this guarantee principle. Under the working conditions specified as this product operation manual, the mal鄄
function results from the modification of product design, production, material, assembly and testing etc factors are not
qualified or in defect, it's exclude from the guarantee.
Our guarantee principle is mainly for repair, as for issue that can't be repaired, then change the failure parts according鄄
ly. The product after modification repair is excluding from the guarantee of our company.
If the modification part of your agitating truck is failed, please contact with our technical service department. The failure
parts can't be remove without the permission of our company or you will lose the guarantee and our company will not
cover the spare pare and repair cost.
Our company only covers the spare part and repair cost for agitating truck in guarantee, and other indirect loss beyond
the quality guarantee is exclude (road maintenance cost, insurance, spare part damage, business profit etc).
If the customer prevents or refuses the service person of our company from checking the vehicle and making the analy鄄
sis with every excuse, the result according and all the loss is covered by the customer.
2. Agitating truck quality guarantee term and item
1. Chassis
Concerning the chassis service, the customer should perform the run-in and periodically maintenance at the service
nearby recommended by the chassis manufacturer according to the requirements of the quality guarantee manual stip鄄
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ulated by the chassis manufacturer, the quality guarantee term and item is performed as the chassis manufacturer pro鄄
vision. The customer can go to the chassis service station for guarantee item if problem happened according to valid
quality guarantee manual (perform the run-in and periodically maintenance and stamped by the station), if the customer
didn't perform the run-in and periodically maintenance in the chassis station, if the quality problem occurred, then cus鄄
tomer has to handle it by oneself.
2. Modification part
Modification part guarantee is one year or 30,000km, if our product failed during the period, refer to warranty (except the
special regulations below).If the mileage is obvious small in repair, which compare to vehicle running time, then calcu鄄
late the real mileage as 300km per day since the day of purchase.
a援 The electrical parts, bulb, water pipe, battery (semi-trailer equips with diesel engine) of the modification part etc are
excluded from the guarantee
b援 Hydraulic oil filter, "O" ring etc fast moving parts are excluded from the guarantee.
c援 The guarantee of control soft shaft and oil pump oil seal is half a year.
d援 The product beyond guarantee, lifetime service is offered, all cost is born by the customer.
e援 As for the quality guarantee part, mainly base on repair, as for issue that can't be repaired, then change the failure
parts accordingly.
f援 The product malfunction that not conducted the normal maintenance as this manual will not be guaranteed.
3. Service promise
a. Our company will reply to the customer in the day we received the customer service information. b. As for the modifi鄄
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OWNER爷S MANUAL
JAC HEAVY DUTY TRUCK
cation part, if our company considers that service has to be performed on the spot, then our promise for the arrival time
to the sport is as follows:
24 hours within 500km from our company headquarter
36 hours within 500km to 1,000km
48 hours when it's above 1,000km.
c. Our company will carry out an interview on the product being sold for 3 to 6 months by telephone, letter, or dispatch鄄
ing person for live interview etc.
d. Our company will conduct the training on modification part maintenance, notice and other factors etc for the cus鄄
tomer.
Remark: all above guarantee term and item are only applicable for concrete agitating truck produced by our company.
峪. Attached documents list
荫
agitating truck operation manual, one piece
荫
agitating truck qualified certificate, one piece
荫
chassis operation manual, one piece
荫
service manual, one piece
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