Technical support

The new bridge was first described and later maintenance repair processes of some common problems, our company in the long-term production and sale ofaxle in the process of the product, in the light of these problems, and sums up somesolutions

A new bridge, before use: 

The new bridge in use before the kingpin, the bushing and the track-rod ball joint and bearing with 2 # lithium base grease, namely in various butter mouthfilling enough 2 # lithium base grease. Main reduction gear and bearing filling hypoid gear oil. The specific application of lubricating oil (grease ), lubrication and lubrication intervals are as follows: 
The 1 part, grease,lubrication intervals, grease specifications and maintenance standard:

 

Lubrication par

Lubrication interval

 

Lubrication interva

 

Recommended lubricating oil (grease ) specifications

 

Maintenance standard

 

1

The main pin, the bushing and the track-rod ball joint

2000KM

O-617-B ( 2) level is the lowest is adapted to temperatures of - 12 degrees C, the highest temperature of kinematic pair to a temperature not exceeding 120 degrees Celsius

2 general purpose lithium base grease for automobile ( Retinax ) LX2 ( Retinax LX2 shell grease )

Add from oil overflow hole overflow.

2

Front wheel hub bearing

8000KM

O-617-B ( 2) level is the lowest is adapted to temperatures of - 12 degrees C, the highest temperature of kinematic pair to a temperature not exceeding 120 degrees Celsius

2 general purpose lithium base grease for automobile ( Retinax ) LX2 ( Retinax LX2 shell grease )

After cleaning the internal and external bearing coated with grease, hub lumen with quantitative

Bridge maintenance to choose other brands of grease, the original hub and the bearing grease all clean.

 2, lubricating oil specification and temperature range: 

Lubricating oil specification

 

The name you called

 

The corresponding lubricating oil

Minimum temperatures

 

The highest temperatures

 

Shell

 

Hypoid gear oil

 

GL-5,80W/90

GL-5,85W/140

-26℃

-12℃

The bridge shell temperature not exceeding 122 degrees Celsius

 

Mobil

 

Hypoid gear oil

GL-5,80W/90

GL-5,85W/140

-26.1℃

-12.2℃

The bridge shell temperature not exceeding 122 degrees Celsius

The above can replace the lubricating oil must be recommended by the Czech, currently recommended only approved soil licensing ( Dalian Petrochemical Company ), South China Sea licensing ( Maoming Petroleum Company ), flying card ( Lanzhou refinery) GL-5, 80W / 90 and 85W / 140 heavy duty automobile gear oil.

 In two, the new axle loading:

New axle loading, the vehicle must be 1500KM walk together, to check all parts of the fastener, can be formally put into use. In later in the use of the process, every 3000KM running everywhere, to the grease filling 2 # lithium base grease ( ( shell Retinax LX2 grease ) ), every 5000KM running, check brake clearance, every 8000-10000KM running, check the brake bottom plate fastening, check the wheel hub bearing looseness, check the brakes wear, if the brake wear exceeds the limit of pits, must be immediately replace the brake pads. Highway transportation vehicle to travel 3000 kilometers after the replacement of the assembly when injected into the lubricating oil, traveling 5000 kilometers per or per month to check the oil surface once every 30000 kilometers, to replace a lubricating oil; the highway transportation vehicle to travel 1500 kilometers after the replacement of the assembly when injected into the oil, every travel 2000 kilometers or monthly check oil level again, traveling 50000 kilometers per year or change oil once.

 

Three, axle common breakdown and elimination method

 

 

The fault phenomenon

 

Fault analysis

 

Corrective measures

 

Tire abnormal wear

 

1 tyre

2 tire imbalance, shock absorber damage

3 air suspension installation not to

4 toe improper setting

5 knuckle arm size improper assembly

6 wheel hub and brake drum with dynamic balance error

7 ball pin, master pins and bushings are too loose or too tight

 

1 adjust the tire pressure to the specified value

2 balance transfer, replacement shock absorber

3 of

4 adjustable beam prior to the specified value

5 check, adjust the steering system

6 good balance mark or adjustment of the dynamic balance

The 7 correction or replacement of faulty components

 

Vehicle steering difficulty

 

1 steering system of lubrication

2 main pin, bushing sintering, corrosion

3 knuckle arm size improper assembly

4 caster improper adjustment

5 rod ball head doesn't turn.

The 6 thrust bearing damage

 

The 1 lubricating steering system

2 replacement master pin and bushing

The 3 tone, for steering knuckle arm

4 adjustable caster

5 replacing the track-rod ball joint

6 replacement of thrust bearing

 

Driving front axle swing

 

1 caster improper adjustment

2 wheel or tire balance

3 shock absorbing system components damage

4 master pins and bushings wear too large

The 5 front wheel bearing wear or preload looseness

 

1 after adjusting angle

2 balance or replacement of a wheel or tire

3 replacement of damaged parts shock absorber system

4 replacement master pin and bushing

6 replace the bearings or bearing preload adjustment

 

The brake force is insufficient

 

The 1 cam shaft rotation is not flexible

The 2 brake chamber push rod stroke regulating improper

The 3 braking friction plate overheating or deterioration

The 4 brake friction sheet and the brake drum with uneven

5 brake drum inlet

The 6 friction plate and a brake drum are lubricating oil

The 7 brake air pressure is not enough or not enough fresh air

 

The 1 cam shaft work

The 2 regulating push rod stroke

3 replacement of friction plate

4 replace the friction sheet or correction of brake drum coaxial degree

5 in the run, gently depress the brake pedal, so that the water is drained

6 replace the friction sheet or cleaning the brake drum oil

7 check the pressure piping and valves

 

Steering wheel deflection

 

1 wheel alignment adjustment is not correct

2 axle bending

The 3 braking drag

 

1 check and adjust wheel alignment

The 2 correction or replacement of the front axle

3 checking brake system

 

During acceleration or deceleration stage bridge abnormal sound

 

The 1 main, the driven gear side clearance is not correct

The 2 transmission shaft dynamic balance failure

The 3 drive shaft and rear axle input shaft angle is not correct

In 4 the differential gear, gasket and a cross shaft damage or wear too much

5 gear damage

6 main reducer bearing wear or improper adjustment of clearance

 

1, adjust the main driven gear side clearance

2 pairs of transmission shaft dynamic balancing correction in Xing

3 check the correctness of the design of transmission angle

4 replacing all the wear parts and clearance to gauge

The 5 replacement of the gear pair

6 bearing replacement or adjustment to the specified pretension

 

In the course of running noise

 

In 1 the bridge shell insufficient lubrication oil

2 gear and / or bearing wear or damage

3 main reducer bearing wear or improper adjustment of clearance

 

1 add lubricating oil

2 replacing all the wear parts

3 bearing replacement or adjustment to the specified pretension

 

Lubricating oil leakage

 

In 1 the bridge shell oil level too high

2 wheel or main reducing oil seal damage

3 bolt / nut loosening

 

1 adjusting lubricating oil surface height

2 oil seal replacement

3 clean the thread, thread after the adhesive injected by a fixed torque tightening

 

Brake noise

 

1 brake pads wear too much, rivets protruding

The 2 friction surface hardening or deterioration

The 3 brake shoe with frictioncontact loosing

The 4 shoe pin, bushing wear loose

5 wheel hub bearing wear or pretightening force is too small

 

1 brake pads wear too much, rivets protruding

The 2 friction surface hardening or deterioration

The 3 brake shoe with frictioncontact loosing

The 4 shoe pin, bushing wear loose

5 wheel hub bearing wear or pretightening force is too small