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6 Golden Tips for Choosing the Best ISUZU Wrecker Tow Truck

Sep 18, 2023
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A flatbed tow truck is one of the easiest and safest ways to tow an accident or broken down vehicle. In this article, we will take a look at the performance of wrecker tow truck, structure, usage, precautions and maintenance, etc. While showing details of the truck, both pictures and description will together help you get better understanding of how to choose the best ISUZU towing truck.

ISUZU road wrecker truck

1. General Description

The Towing Truck is mounted on ISUZU 600P chassis, which consist of 5.5m rescue platform and towing system, mainly used for road rescue working and the working aerial can be City Street, factory and other areas of need.
The vehicle designed to fully rely on the advantages of the original 4*2 chassis, fully consider the product's convenience and features. The rescue platform can be laid down to deliver all kinds of vehicles, with wire rope and tape to fasten the vehicle during delivery, which is multifunctional enough to cover all customers’ requirement.

ISUZU wrecker tow truck

The ISUZU 4x2 Towing Truck equipped with 5.5m rescue platform, hydraulic cylinders and English version operation guidance. Customized painting for truck cabin and platform. Therefore, the vehicle is an ideal truck mainly for motor vehicles transportation & vehicles that broke down.

ISUZU flatbed tow truck

2. Main Technical Data

Vehicle parameter:

Items

ISUZU Towing Truck

Dimension

Overall Dimension(L×W×H)(mm)

7000*2200*2430

Wheelbase (mm)

3360

Kerb Weight(kg)

3890

GEAR

Gearbox brand

MSB

Model

5-shift gearbox

Type

Manual

Cab capacity(includes driver)

2

ENGINE

Model

ISUZU 4KH1CN5HS

Type

Four cylinder inline, four stroke, water-cool, turbocharged Inter-cooling, diesel

Rating Power(kW/HP)

96/130

Emission Standard

Euro 5

SUPERSTRUCTURE

Platform Dimension

4200×2200

Winch

3 tons

3. Towing Truck Structure Components

This Towing truck equipped with 5.5m length platform, which mainly consist of below system:
1. High position traffic signal indicator light at two sides
2. Winch and rope
3. Platform
4. Tail gate
5. Side warning lamps
6. Wheel bracket
7. Operation Joysticks
8. Side fence
9. Tool box and accessories

ISUZU flatbed wrecker truck

4. Towing Truck Working Principles

The operator should fully understand Whole Structure and Working Principle for Isuzu 4*2 Towing Truck before any operation. Only trained person can operate this vehicle properly and to prevent unnecessary accidents and equipment damage.
1) How is the wrecker truck with crane working?
The Towing truck is refitted based on the Isuzu 4*2 left hand drive chassis. The refit part mainly included platform and rear lifting system. The engine power transit from PTO on gearbox to hydraulic oil pump, then hydraulic oil through the pump start from all control valves to hydraulic cylinders and hydraulic motors, which can make all system working normally.
a. Auxiliary frame is the base of all superstructure components, which can distribute the concentrated load of each component uniformly to the chassis frame, and improve the chassis bearing condition.
b. Platform is the main part of the wrecker truck. The platform move backwards and tilting suitable angle, make sure the rear on land. Then the capstan and rope can towing cars loading on the platform, all hydraulic cylinders support the whole loading process.
c. Wheel bracket mainly used for rescue work. Which make the wrecker truck rescue two cars at one time.
d. Large toolbox as standard installed below platform, which mainly used for storage all necessary rescue accessories.
e. Operation Joysticks installed at two side of the platform, which can make the wrecker truck working by using hydraulic joysticks. Also two sides Operation Joysticks design can make sure operator always at safety sides.
f. Safety warning lamps installed on top of the platform, which can not only warning others during working, but also can protect the driver.

2) How to operate Towing Truck?
1、How to operate the platform:
a) Start the truck engine, press the clutch pedal and make sure gearbox in neutral position, then pull out the PTO joystick (behind the seat), finally release the clutch pedal slowly.

ISUZU tow truck operation

b) Kindly refer to below towing truck working principle diagram.

Towing truck hydraulic system diagram

c) Refer to the Operation Joysticks English Guidance to operate the wrecker platform.

ISUZU tow truck control valve

d) Operate Joystick 2, 3 & 6, the Platform working (Loading First Car):
Press Joystick 2 to Slip Out position, the platform move backward, which move short distance; release Joystick 2 and press Joystick 3 to Lifting position, the platform move upward till to the extreme position; release Joystick 3 and press Joystick 2 again till the platform touch the ground; then press Joystick 6 to lay down the tail gate.

Towing truck service

e) Cars loading on the towing truck platform.
Option 1: Car with power: Drive directly to the platform, then use bandage fasten on the platform.

ISUZU wrecker truck working principle

Option 2: Car with no power: Use winch and rope towing cars loading to the platform, then use bandage fasten on the platform.

ISUZU towing truck with winch

f) When cars well fasten on the platform, Operate Joystick 2 & 3, the Platform working:
Press Joystick 2 to Slip In position, the platform move forward, which move short distance; release Joystick 2 and press Joystick 3 to Falling position, the platform move downward till to the extreme position; then release Joystick 3 and press Joystick 2 again till the platform back to normal model.
g) Operate Joystick 4 & 5, the Wheel Bracket working (Loading Second Car):
Press Joystick 5 to Falling position, the wheel bracket move downward, which move short distance; release Joystick 5 and press Joystick 4 to Stretch Out position, the wheel bracket move out till to the extreme position; then release Joystick 4 and press Joystick 5 again till the wheel bracket landing on the ground.

Tow truck with wheel lift

5. Others for Attention

After carefully reading the above information, you must be well known how to use the ISUZU 4*2 Towing Truck; below show some parts you need to pay attention while using the truck.
1) New Truck Attention
As the new truck needs to pass the run-in period smoothly, so please take note for truck at the beginning of 100 hours:
a. Lifting weight and Towing weight not exceed 70% of the rated weight, and maximum rope towing weights not exceed 70% of the rated one.
b. Carefully checking all joints fasten situation before and after each operation.
2) Truck Driving Attention
a. All system retracts to initial position, the operation joysticks at middle position, and PTO must shut off.
b. Wheel Bracket position cannot be too low, because it is not safety for driving.
c. When wrecker truck full loading, the driving speed should be less than 30km/h, the speed should be lower special on turning position, going up and down position or in bad situation. Sharp turn and brake is forbidden.
d. When reversing, the included angle for truck and car should be less than 70°, otherwise will damage the car.
3) Platform working Attention
a. Strictly following the Operation Guidance for using. No overloading.
b. Before lifting the platform, press Joysticks 2 to Slip Out position, make sure the platform move backward firstly, which can drag the roller off the limit frame. When platform out of the limit frame, then can start lifting.
c. Similarly, when platform falling down, press Joysticks 2 to Slip In position, make sure the platform move forward firstly, then falling to extreme position and move forward to initial place.
d. Make sure the Wheel Bracket at initial position before lifting the platform.
4) Wheel Bracket working Attention
a. Strictly following the Operation Guidance for using. No overloading.
b. The wheel bracket is adjustable and moveable, which can make the bracket suitable for different tires, but overloading is strictly forbidden.
5) Winch and rope working Attention
a. When winch and rope towing cars loading on the platform, the rear legs on wheel bracket should be on solid ground.
b. Towing position should be at rear of the platform, the towing angle less than 20°
c. Winch under working condition, the rope should left 4-5 rings.
6) Hydraulic system working for Attention
a. When operate the hydraulic control system manual joysticks and acceleration cable, should not drag too hard.
b. Hydraulic oil should be same brand, mixing using is forbidden.
c. When hydraulic oil temperature exceed 70℃, the work should be stop.

6. Troubleshooting

Items

Trouble

Reason

Method

1

Hydraulic oil leakage

1. Joint loosen

2. Sealing parts damage

3. Pipeline break

1. Fasten joint

2. Replace new seals

3. Change new pipes

2

Hydraulic oil pressure lower

1. Hydraulic oil level too low

2. Suction pipe blocked

3. Oil pump damage or serious leakage

4. Overflow valve low open pressure

5. Oil pipe or actuator serious leakage

6. Pressure gauge damage (No data)

1. Add more hydraulic oil

2. Maintenance suction pipe

3. Maintenance oil pump

4. Adjust to suitable pressure

5. Maintenance oil pipe and actuator

6. Maintenance pressure gauge

3

Oil road too noisy

1. Air exist inside of pipe

2. Suction pipe air leakage

3. Oil temperature too low

4. Filter blocker

5. Hydraulic oil not enough

1. Multiple working to exhaust air

2. Maintenance suction pipe

3. Idle working or change low viscosity hydraulic oil

4. Change filters

5. Add hydraulic oil

4

Oil road temperature too high

1. Serious inside leakage

2. Overflow pressure too high

3. Working temperature too high or long time working

4. Balanced valve blocked

1. Maintenance actuator

2. Overflow pressure adjust to rated value

3. Stop working

4. Clean or change balanced valve

5

Pressure instability

1. Overflow valve damping hole blocked or damping spring damaged

2. Balance valve damping hole blocked

3. Air exist in oil road

1. Cleaning or change new overflow valve

2. Cleaning or change new balance valve

3. Exhaust air

6

High oil pressure even unloading

1. Oil road blocked

2. Filters blocked

1. Cleaning the oil road

2. Cleaning or change new filters

7

Oil cylinder shaking

1. Air exist in air road

2. Balance valve damping hole blocked

1. Multiple working to exhaust air

2. Clean or change balanced valve

8

Accelerator not working

1. Accelerator cable too long

2. Accelerator cable stuck

3. Engine throttle is locked

1. Adjust the cable length

2. Maintenance the accelerator cable

3. Unlocked the engine throttle

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