JAC Trucks. Service manual — part 24
Trailer cable device includes trailer light cable assembly and trailer ABS assembly.
Cable is fixed on plug, and trailer light cable is used to control light and signal on
trailer.
Interface for light
cable on 7p trailer
Stationary point for
light interface
Interface for ABS
cable on trailer
Stationary point for
ABS interface on
trailer
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MIXER
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玉Main structure brief introduction and working principle
JAC concrete agitating and transportation truck is modified based on the 2nd category chassis from south Korea Gerfa,
its mainly used for the pre-mixing concrete delivery to the mixing station accordingly, delivery time is less than 1.5h, de鄄
livery range is about 60km around the mixing station, the vehicle schematic is as follows:
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1. 2nd category chassis曰 2. water supply system曰 3. agitating tank曰 4.feed system曰 5. output system曰
6. operation system曰 7. frame system曰 8. hydraulic drive system
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1. Agitating tank
Agitating tank body is the main part of the concrete transportation truck, it consists the tank body, guide tank, vane and
assistant vane. The funneled guide tank assures the feeding properly, the curve vane helps to output performance of
lower landslide level concrete, there are holes on the vane, which reduces the adhering of the concrete. The assistant
vane with the agitating ability helps to improve the pre-agitating concrete quality. The whole agitating tank is mounted
above the bracket; there are two supporting rollers in the rear. The checking hole on the agitating tank is for easy repair.
2. Transmission system
The transmission system gets the power from the original engine, namely the power is output after get through the en鄄
gine and chassis, and then power is transmitted to the variable volume plunger hydraulic pump through the universal
joint. The fixed volume plunger motor is driven by high pressure oil of the hydraulic motor, then the hydraulic motor for鄄
wards the power to the reducer and drives the tank in clockwise or counterclockwise, then feeding, agitating or output is
realized. The output flange of the reducer can be turned within依6?, which compensates the axial movement of agitating
tank and assures the drive of agitating tank is not affected by the distortion during the driving.
3. Hydraulic system
Hydraulic system is open type, it main consists hydraulic pump, reducer, high pressure pipe, low pressure pipe and oil
return pipe etc. There is manual servo adjustment handle on the hydraulic pump, the hydraulic oil flow and direction can
be adjusted, which controls the turning and revolution speed of agitating tank. The clockwise and counterclockwise ro鄄
tary of the agitating tank is able to get stepless speed adjustment.
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4. Control system
The rod type control mechanism is arranged in three locations, one in driving
cab, the other two in the rear, it incorporates the soft shaft control in the driv鄄
ing cab, it's for locking the direction of agitating tank to assure the agitating of
the agitating tank during driving; the two sides in the rear are connection rod
control system, turn the handle, and it drives the adjustment handle of the hy鄄
draulic pump and the engine accelerator pedal to adjust the volume and di鄄
rection of the hydraulic oil, then the feeding and output of the agitating tank is
under control; the soft shaft control is on the left of the driving cab, it's simple
and flexible and easy to operate.
Connecting rod type (operation)
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Soft shaft type (operation)
5. Frame
The frame is composed of auxiliary frame, front bracket and rear bracket etc
components. The auxiliary frame connects with the chassis frame, there is
supporting roller and feeding equipment bracket.
6. Feeding and output equipment
Stuff feeding and output consists feeding funnel, output funnel, stuff collecting
trough, adjustment handle etc. The stuff collecting trough can be turned hori鄄
zontally within 180? and the height can be adjusted from the vertical direction
for different working conditions. The lock mechanism on it can be fixed and
locked to keep the safety driving.
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7. Water supply system
It adopts air pressure water supply or water pump supply, the water supply system consists the water tank, ball valve,
water pump, squirt gun, water pipe etc, it's for swashing the inner vane of the agitating tank, feeding and output groove,
also it can be used for washing vehicle. In addition, it can be used for adding water to the tank during agitating as well.
Air pressure type water tank
Water pump supply water tank
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