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Project: N125 Meng Cheng Pickup Project with Standard II
（2.8L）
Repair Manual
Numb
er:
N125-NAM-PV-ZB-G
9-2
Version: 1.0
Compilation:
Proofread:
Review:
Standardizat
ion:
Countersign
ature:
Approval:
ANHUI JIANGHUAI AUTOMOBILE CO., LTD.
Year Month Day
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Front Suspension Device
1. Overview ……………………………………………………………3
2. Repair Notes…………………………………………………4
3. Maintenance data and
Specifications………………………………………………5
4. Disassembly and
Re-installation ………………………………………………………5
5. Troubleshooting…………………………………………………………8
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Front Suspension Device
1. Overview
Suspension, transmit all the force and torque acting on among the wheel and the frame, or the body,
moreover it can ease the impact load that the rough ground pass on to the frame or the body,t o attenuate the
vibration that caused by the carrying system, in order to ensure the vehicle normal driving.
The front suspension adopts double arm type independent suspension with unequal length, including
sway bar assembly, flexible elements with torsion rod spring; shock attenuation device is a two-way
bidirectional-cylinder- hydraulic shock absorber.
Serial
number
Number Name Quantity
1 Q146B0825TF62
Hexagonal head bolt, spring washer and
flat washer assembly
4
2 2906014W5000 Front sway bar mounting bracket 2
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3 2906013W5000 Front sway bar bushing installation 2
4 2906010W5000 Front sway bar assembly 1
5 2909010W5000
Front push-rod assembly
2
6 Q151B1260TF61 Hexagonal head bolt-fine tooth 2
7 2906020W5000
Front sway bar connecting rod
assembly
2
8 2904400W5000
The lower-right suspension arm
assembly
1
9 13141-1600F61 Slotted nut 4
Serial
number
Number Name Quantity
10 Q5004028 Cotter pin 4
11 Q151B1455TF61 Hexagonal head bolt-fine tooth 4
12 2904600W5000
The upper right suspension arm
assembly
1
13 2905010W5000 Front shock absorber assembly 2
14 Q151B12100TF61 Hexagonal head bolt-fine tooth 4
15 Q40312F61 Spring washer 4
16 Q341B12T13F61 1 type hexagon nut-fine tooth 4
17 2902020W5000 Right torsion bar spring assembly 1
18 2902030W5000 Adjusting rod assembly 2
19 Q40314F61 Spring washer 4
20 Q341B14T13F61 1 type hexagon nut-fine tooth 4
21 Q341B12T13F61 1 type hexagon nut-fine tooth 2
22 Q40312F61 Spring washer 2
23 Q40312F62 Spring washer 4
24 Q341B12T13F62 1 type hexagon nut-fine tooth 4
25 2904320W5000 Adjusting bolt components 2
26 Q33010F61 All-metal 6-point flange lock nut 2
27 Q1851240TF62_1.25 Hexagonal flange bolts 4
28 2901070W5000 Front buffer block assembly 2
29 2904331W5000 Adjusting pad 2
30 Q40316F61 Spring washer 2
31 Q361B16T13F61 2 type hexagon nut-fine tooth 2
32 2901081W5000 The front upper buffer block 2
33 2902010W5000 Left torsion bar spring assembly 1
34 2904500W5000 The left upper suspension arm assembly 1
35 2904300W5000 The left lower suspension arm assembly 1
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2. Maintenance Notes
■When install the suspension or rubber bushings, the final tightening must be operated on the condition that the
tires landing and no-load.
■After finishing repai ring the suspension components, be sure to check wheel alignment.
■The oil will shorten rubber bushing's life.
■Be sure to wipe clean the overflowing oil
■The no-load conditions mean that the fuel, engine coolants and lubricants are normally filled. Besides, spare tires,
jack, tools and foot pad should be placed in the specified location.
■The lock nut can not be reused. When replacing, before tightening lock nut, do not wipe off the rust-preventive
oil of the lock nut
.
3. Maintenance Data and Specifications
Table of technical specifications
Project Parameters and specifications
Front Suspension forms
Double wishbone torsion bar independent
suspension
Shoc
k
absorber
Type Bidirectional cylinde r-type shock absorber
Stroke 184.5mm
Dam
ping force
Stret
ch
1371N (piston speed 0.3m/s)
Com
pression
454N (piston speed 0.3m/s)
Torsion bar spring
Torsion
stiffness37.7N.m/°
Color mark:
White/Yellow circular mark
Whe Toe-in (front) 1～3mm
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el
alignment
Wheel camber
angle
0.4°±0.5°
Kingpin
inclination angle pin
pitch
15.3°±0.5°
kingpin caster
angle
2.67°±0.5°
Scrub Radius 3±2mm
4. Break-down and Replacement
4.1 Disassembly and installation of
left/right-torsion bar spring assembly
1) Disassembly
① Disassemble the preloaded nut and adjusting nut,
then remove right-hand torsion bar spring adjusting
components;
②Disassemble the front connecting nuts of the torsion
bar, and remove the torsion bar spring assembly.
2) Installation
①Installation is as the reverse order of disassembly.
1 ．② The preloaded nut tightening torque of
torsion bar spring :（34-50）N·m
2 ．The front connecting nut tightening torque of
torsion bar spring:（110～130）N·m
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4.2 Disassembly and installation of the
upper suspension arm:
1) Disassembly
①Disassemble the nuts that used to connect the bolts
between the upper suspension arm assemblies with
frame, as well as the spring washer components;
②Disassemble the retaining pin that connected the
upper suspension arm assembly with the steering
knuckle, as well as mounting nut
2) Installation
①Installation is as the reverse order of disassembly.
② The tightening torque of the bolts that connecte d
the upper suspension arm assembly with the frame:
（120～160）N·m
③The tightening torque of the nuts that connected the
upper sus pension arm assembly with the steering
knuckle: （110～130）N·m
4.3 Disassembly and installation of front
sway bar assembly
1) Disassembly
① Disassemble the retaining nuts that connected the
front sway bar assembly with the connecting rod of
the stabilizer, and then remove the connecting rod's
rubber cover as well as the rubber bushings;
② Disassemble the mounting brackets fixed bolts of
the front sway bar, and remove the stabilizer's
mounting bracket as well as the stabilizer's mounting
bushings;
③ Remove the front sway bar assembly, and remove
the stabilizer's connecting rod assembly.
2) Installation
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①Installation is as the reverse order of disassembly.
1 ②Front sway bar mounting bracket mounting bolt
torque:（32～39）N·m
4.4 Disassembly and installation of the
front shock absorber assembly
1) Disassembly
①Disassemble the nuts that used to connect the bolts
between the front shock absorber assembly and the
frame, as well as the spring washer components;
② Disassemble the nuts that connected the front
shocker absorber with the frame;
③Remove the shock absorber assembly
3) Installation
①Installation is as the reverse or der of disassembly.
1 ②The tightening torque of the nuts that used to
connect the bolts between the front shocker
absorber assembly with the down suspension arm
assembly:（70～95）N·m
2 ③The tightening torque of the nuts that connected
the front shocker absorber assembly with the
frame:（46～56）N·m
4.5 Disassembly and installation of the
left/right front push-rod assembly
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1) Disassembly
① Disassemble the connected nuts between the front
push-rod assemblies with frame, as well as the spring
washer components;
②Disassemble the nuts that used to connect the bolts
between the front push-rod assembly and the do wn
suspension arm, as well as the spring washer
components;
③Remove the front push-rod assembly
2) Installation
①Installation is as the reverse order of disassembly.
②The tightening torque of the nuts that connected the
front push-rod assembly with the frame: （140～190）
N·m
③The tightening torque of the nuts that connected the
front push-rod assembly with the down suspension
arm: （110～130）N·m
4.6 Disassembly and installation of the
down suspension arm assembly
1) Disassembly
① Disassemble the connected nuts that used to
connect the fixed adjusting bolt between the down
suspension arm assembly and the subframe, as well as
the spring washer components;
② Disassemble the retaining lockpin that connected
the down suspension arm assembly with the steering
knuckle, as well as mounting nut
③Remove the down suspension arm
2) Installation
① Installation is as the reverse order of
disassembly.
② The tightening torque of the bolts that
connected the down suspension arm assembly
with the sub-frame:（240～300）N·m
③The tightening torque of the mounting nuts that
connected the down suspension arm assembly
with the steering knuckle: （110～130）N·m
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5. Fault Diagnosis
Fault phenomenon Possible cause for fault Solutions
Hard steering
Front wheel improperly positioned Adjustment
Turning exceed the ball joint of the
down suspension arm
Replacement
Tire pressure is too low Inflation
No power steering Repair or replace
Mal-return
Front wheel improperly positioned Adjustment
The shock absorber are defective Replacement
Horizontal stabilizer damaged Replacement
Torsion rod spring is broken Replacement
The bushings of the down suspension
arm abnormal wear
Replacement
Tire abnormal wear
Front wheel improperly positioned Adjustment
T ire pressure is too low or too high Adjust the air pressure
The shock absorber are defective Replacement
Vehicles off-tracking
Front wheel improperly positioned Adjustment
The steering resistance of the down
suspension arm's ball joint is not enough
Replacement
Bushings of the down suspension arm
loose or abnormally wear
Replacement
Vehicles unilateral
off-tracking
Front wheel improperly positioned Adjustment
The steering resistance of the down
suspension arm's ball joint is not enough
Replacement
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The down suspension arm bent Replacement
Torsion rod spring is broken Replacement
Steering wheel wobble
Front wheel improperly positioned Adjustment
The steering resistance of the down
suspension arm's ball joint is not enough
Replacement
Bushings of the down suspension arm
loose or abnormally wear
Replacement
The shock absorber are defective Replacement
Horizontal stabilizer damaged Replacement
Torsion rod spring is broken Replacement
The Sub-frame Device
1. Overview ………………………………………………………………3
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2. Disassembly and
Re-installation……………………………………………………4
3. Maintenance data and
Specifications………………………………………………4
The Sub-frame Device
2. Overview
Sub-frame welded assembly adopts separated punch, welding is the assembly method, the group
weldments consis t of sub-frame body, sub-frame connection panel, steering engine bracket,and etc.
Sub-frame body is welded by an upper and down pieces, forming a "口" shape closed section, with a good
geometrical shape and reliable structural strength.
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Serial
number
Number Name Usage
1
Q151B1435TF61 Hexagonal head bolt-fine tooth 4
2
Q40314F61 Spring washer 4
3
Q341B14T13F61 1 type hexagon nut-fine tooth 4
4
2810010W5060 Sub-frame welded assembly 1
2. Disassembly and Re-installation
2.1 Disassembly and installation of sub -frame weld
assembly
1) Disassembly
① respectively disassemble the sub-frame weldments
assembly, and the frame's left and right two mounting
bolts, nuts and spring washer components.
② Remove the sub-frame weldment assembly.
2) Installation
Installation is as the reverse or der of disassembly.
① the tightening torque the mounting nuts that used
to connect the sub-frame weldment assembly and
frame: （120～160）N·m.
3. Maintenance data and Specifications
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Main size
parameters
Serial
number
Size description Size/mm
1 Installation surface height L1 151
2 Nut to body center distance L2 120
3 Nut center distance L3 102
4 The sub-frame width L4 311
5 The frame height L5 1004
6 Distance between mounting holes L6 730
7
Center distance between mounting holes
L7
292
8
Center distance between mounting holes
L8
215
9 Strip hole width L9 15
10 Strip hole height L10 17
11 Distance between hole centres L11 344
12 Distance between hole centres L12 120.5
13 The sub-frame thickness L13 194
14 Strip hole center distance L14 697
15 Strip hole height L15 30
16 Strip hole width L16 16
17 Weld angle θ 115
18 Mounting hole diameter D1 15
19 Mounting hole diameter D2 8
20 Internal thread M1 12
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Rear Suspension Device
1. Overview ………………………………………………………3
2. Specifications………………………………………………………4
3. Disassembly and Re-insta llation……………………………………4
4. Troubleshooting……………………………………7
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1. Overview
Rear Suspension adopts steel spring non-independent suspension, and vertical steel spring assembly consists
of three main springs and 2 sub-springs; the shock absorber device adopts bidirectional cylinder-type hydraulic
shock absorbers.
(1) the leaf spring pin (2). spring washers (3).1 type hexagon nut-fine tooth(4).rear u-bolt and nut (5).1 type
hexagon nut, flat washer, sprin g washer (6). the buffer block assembly (7). rear leaf spring assembly (8). rubber
1
2
3
4
5
6
7
8
9
10
11
12
5
13
14
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bushing Ⅱ (9). the rear-spring shell lug assembly (10). rubber bushing I (11). spring washers (12). 1 type
hexagon nut (13).rear u-bolts (14). rear shock absorber assembly
2. Specifications
Suspension type Non-independent suspension
Spring type less-plate leaf spring
the number of spring five pieces
The shock absorber
stroke
184.5mm
Warning: Please make sure that tighten the rear u-bolt and nut as specified torque value, because it relates to
the working life of the rear leaf spring assembly.
3. Disassembly and Re-installation
Disassembly
Disassembly order
(1). rear shock absorber assembly (2). the rear-spring shell lug assembly (3). rear spring fixed pin (4). rear
u-bolts (5). rear leaf spring assembly (6). the buffer block assembly
1
2
3
4
5
6
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Preparations
Before disassembling, clean the rear suspension
system, ens ures that no silt and oil sludge. Please pull
the parking brake handle grip to the brake position,
then prop the front wheels up, use the jack to support
rear axle, and then use the security bracket to prop
rear end of the frame up.
Important job - disassembly
1
、
The rear shock absorber assembly
Use jack to jack-up the rear axle. Disassemble the rear
shock absorber assembly
2
、
The rear-spring shell lug pin
(1) Disassemble the fixed nuts of the rear-spring shell
lug.
(2) Remove the leaf spring back-end of the ear pin
assembly.
(3) Disassemble the rubber bushing I、II.
3
、
The rear-spring fixed pin
(1) Disassemble the fixed pins and bolts of the
rear-spring.
(2) Remove the rear spring pin.
(3) Slowly put down jack to let the rear axle land
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smoothly. At that tim e, the rear leaf spring
assembly in Free State.
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4
、
Rear u-bolt
After disassembling the rear u-bo lts, please separate
the leaf spring rear buffer block and rear axle.
5
、
Rear buffer block
Remove the rear buffer blocks
6
、
Leaf spring
Remove leaf spring.
Check and maintenance
In the course of the inspection, if you detect any
abnormal wear or damage, please make the necessary
repair or replacement of parts
Visual inspection
Please make visual inspection of the parts, if there is
damage or failure, please replace them
Leaf spring assembly
U-bolt
U-bolt and nut
The rear spring lug pins rubber
bushing
The rear spring fixed pin
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Re-installation
Re-installation order
(1) the rear leaf spring assembly; (2) the u-bolts; (3) rear spring fixed pin; (4) rear spring shell lug assembly ;
(5) rear shock absorber assembly
Serial number Project T ightening torque （N·m）
(4) U-bolt and nut 126～154
(3) Hexagon flange nuts
（Q341B16T13F62）
190～260
(5) Hexagon flange nuts
（Q341B14T13F62）
78～96
(12) Hexagon flange nuts
（Q341B12T13F62）
73～89
1
2
3
4
5
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Important job - Assembly
The rear leaf spring assembly
When fitting, the spring eye side of the leaf spring
should be forward, and shall not be installed
backwards.
The rear buffer block rear u-bolts
(1) Park the vehicle on a horizontal flat surface, please
install the rear buffer block and rear u-bolt at the
corresponding location on the leaf spring.
(2) Use jack to jack-up the rear axle, aligned with rear
axle hole and the rear u-bolts.
(3) Install the rear u-bolts, tighten the nuts.
The rear spring fixed pin
(1) Use jack to jack-up the rear axle, align the rear
spring eye hole with the hole location of rear
spring fixed bracket, then install the rear spring
pin.
(2) Install the fixed pin and fixed bolts of the rear
spring pin, and tighten the nut.
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The rear spring lug pin
(1) Put into the rubber bushings I、II, please align the
rear spring eye holes with the hole location of the
rear spring lug, then put rear spring lug pins in.
(2) Install the fixed bolts of the rear spring lug, and
tighten the nut.
The rear shock absorber assembly
Tighten the fixed nuts of the rear shock absorber
Warning: Please make sure that the rear u-bolt nut
tightened as specified torque value, because it relates
to the working life of the rear leaf spring assembly.
4
、
Trouble Diagnosis
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Rear suspension assembly
Bod
y
tilt
Check the
Nor
m
Rust
S
p
rin
g
elasticit
y
is
Clean Re
p
la
Check lu
g
p
ins and
Nor
m
Worn o
r
Check the steel
p
late
Nor
m
Bolts loose Break
Ti
g
ht
Check the
Bushin
g
s are worn
Nor
m
Re
p
la Check the fixed
Nor
m
Dam
Re
p
l
a
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Ground clearance is
Check the load
Norma
Breakag
Replac
Check
Norma Worn or
Inspect bushing
Norma Deterioration
Lubricating
Add
Norma Insufficient Lubrication
Steel spring
Check steel
Replac
Replac
Remove any excess
Check whether the
Tighten
Norma Loose Broken or
Replac
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Spring break
Load
Norma
Worn or
Replac
Check U-bolt
Norma
Check bolt and nut
Dama
Norma
Check the shock absorbers
Norma
Dama
Check the
Norma
Worn or
Check lug pin and fixed
Check whether bolt
Replac
Replac
Check the center bolt
Tighte
Norma Loose Dama
Replac
Norma
Oil
Replac
Bushi
Worn
Brack
Break
Replac Replac
Replac
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The body
Road test
Noise has a Noise does not have a
Replace
Check the tires for
Norma
Abnorm
Check suspension
Norma
Dama
Replac
Adjust or
Check suspension system's
Norma
Loose or
Tighten or
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Engine fender device
1. Overview………………………………………………………………2
2. Disassembly and
Re-installation………………………………………………………3
3. Maintenance data and
Specifications…………………………………………………3
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Engine fender device
1.Overview
Engine fender device can reduce noise, as well as prevent silt and sedimentation flying to the
transmission; this device is connected to the frame through three fixed points
Serial
number
Number Name Usage
1
2802011W5000 Engine left fender 1
2
2802011W5000 Engine right fender 1
3
Q402B
08F62
Big washer 6
4
Q1420825F62 hexagon bolt and spring washer components 6
2. Disassembly and Re-installation
1
2
3
4
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2.1 Engine Left/Right Fender disassembly and
installation:
1) Disassembly
① respectively disassemble three mounting bolts and
big washer on the engine left/right fender and on the
left and right side of the frame.
② Remove the engine left/right fender.
2) Installation
Installation is as the reverse or der of disassembly.
① Mounting bolt torque that connect the engine
fender and frame: （18～23）N·m.
3. Maintenance data and Specifications
2.1. Engine left fender
The
main
size
and
main
Serial
numb
er
Size description
Size/m
m
1
Fender width
L1
283
paramete
rs
2
The height of
the fender L2
751.6
3
Fender
thickness L3
67.2
4
Distance
between
mounting holes
L4
21.4
5
Distance
between
mounting holes
L5
234.5
6
Distance
between
mounting holes
L6
20.4
7
Distance
between
mounting holes
L7
406
8
Mounting Hole
spacing L8
23.9
9
Mounting hole
diameter D1
9
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2.2. Engine right fender
The
main
size
and
main
paramete
rs
Serial
numb
er
Size description
Size/m
m
1
The height of
the fender L1
891
2
Fender width
L2
300
3
Fender
thickness L3
81
4
Distance
between
mounting holes
L4
399
5
Distance
between
mounting holes
L5
409
6
Install distance
L6
44
7
Install distance
L7
40
8
Install distance
L8
36
9
Mounting hole
diameter D1
10
Wheel hub device
1.
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Overview……………………………………………………………………………3
2. The Main Data and Specifications of Wheel
Hub ……………………………………………………3
3. Disassembly and
Re-installation ……………………………………………………………………3
4. Maintenance and
Troubleshooting ………………………………………………………………8
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1. Overview
Wheel hub bearing is one of the key parts for a vehicle , with the devel opment of automotive technology,
the using condition of the wheels hub bearings is much more rigor, and its life is one of the most impor tant
factors that has a direct impact to the car life and its reliability.
N125 model front wheel hub structure
2. The Main Data and Specifications of the Wheel Hub Device
The bolt circle diameter of the wheel
hub.
φ120mm
Distance between the mounting surface
and the center line of wheel hub
170mm
Center hole diameter of wheel hub φ50mm
The usage of the front wheel hub's one
side bearing grease
（10-15）g
3. Disassembly and Re-installation
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(1) Disassembly between tire and wheel hub
Disassembly order
①.wheel covers ②.wheel nut ③.wheels ④.slotted nut of the steering tie rod ⑤.slotted nut of the upper
suspension arm ⑥. slotted nut of the down suspension arm ⑦.wheel hub device and front brake disc assembly
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The main disassembly steps of wheel hub device:
Pull up the parking brake and pop-up the front axle.
（1）. Disassemble the wheel covers;
（2）Use a tire wrench to disassemble the wheel nuts;
（3）Disassemble the wheel.
（4）Disassemble cotter pin of the steering tie rod, and disassemble the hexagonal nuts of the steering tie rod.
Same actions to disassemble the hexagonal slotted nuts of the upper suspension arm and the hexagonal slot ted
nuts of the down suspension arm. Remove the wheel hub device and front brake device.
Inspection and Maintenance
Visually inspect the left lists of parts whether existing damage, wear , or expired.
1. The fender.
2. Wheel hub bolt.
3. Steering knuckle slot.
4. Brake discs.
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(2) The disassembly of wheel hub
Disassembly order
1. sealing cover 2. cotter pin 3. wheel hub loc k nut 4. whee l hub gasket 5. outer bearing assembly 6. spring washer
7. 1 type hexagon nut-fine tooth 8.hexagon hea d bolt-fine tooth 9. Wheel hub bolts 10. Front wheel hub 11. inner
bearing assembly 12. oil seal of wheel hub 13. brake discs 14.cross recess pan head screw spring washers and flat
washers assembly 15. fender 16. steering kn uckle
The main disassembly steps of wheel
hub
（1）Disassemble the sealed cover of the wheel hub.
Use screwdriver to pry off the hub seal.
Be careful not to damage the hub seal cover.
Remove the lock cotter pin, and disassemble the
hexagon slotted nut. Take out wheel hub gasket
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2
3
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5
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14
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and outer bearing assembly.
(2) Disassemble the brake disc
When remove the brake disc and place it,
taking care to avoid brake disk surface is worn or
scratched.
(3) Disassemble the front wheel hub.
If there is no pressure equipment, do not
attempt to disassemble the hub bolts.
(4) Disassemble the fender
Use a screwdriver to remove the fender .
Inspection and Maintenance
When the hub shaft damage is found, if it has
cracks, pits, or ablation, please repla ced it.
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Visually inspect the left lists of parts whether
existing damage, wear, or expired.
(3) Re-installation of wheel hub device
Re-installation is in reverse order of disassembly. When re-install ing, the tighten torque should refer to tighten
torque table.
Tightening torque table（N·m）
Serial
numbe
r
Name
Torque
（N.m）
Note
① Wheel nuts 180～230
② The wheel hub lock nut
③ 1 type hexagon nut-fine tooth 45～52
④
Cross recess pan head screw spring washers and
flat washers’ assembly.
⑤ slotted nut of the upper suspension arm 110～130
⑥ 1 type hexag on slotted nut-fine tooth 110～130
⑦ slotted nut of the down suspension arm 110～130
1. Wheel hub gasket
2. Outer bearing assembly
3. Inner bearing assembly
4. Front wheel hub, and so on.
1
2
3
4
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Installation Notes:
(1) The refill oil model: Fox grease LX-EP 2
Add grease as shown in the picture
Inner bearings （3-5）g
Outer Bearing （2-3）g
Within the hub cover （5-7）g
(2) Before installing the thrust bearing, please smear
appropriate grease.
Please do not install the wrong direction.
(3) Tighten the hub fixed nut, as soon as there exists a
noticeable drag and friction on the bearing, please
immediately slowly loosen the nut until align it with
the nearest cotter pin holes , and then insert a new
cotter pin.
Note: In no case, you cannot reverse and
loose the nut of a quarter circles. Otherwise, this will
cause the hub bearings loose, and lead to the early
wear.
4. Maintenance and Troubleshooting
Housi
Upper
Down
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(1) In order to maximize the safety and reliability, it is recommended that no matter how long the vehicle age is;
please constantly check the wheel hub bearing - pay attention to whether there are early warning signals for wear:
including the grinding noise in any turns or the suspension combination wheel when turning the deceleration.
When replacing the brake system, check the bearings and replace the oil seal.
(2) If you hear the hub bearing area making a noise, first of all, it is important to find where the noise occurred.
There are many possible noise of moving parts, it is also possible that some moving parts has con ta cted with
non-moving parts. If it is confirmed that the noise is in the bearing, the bearing may be damaged and needs to be
replaced.
(3) Because the both sides’ bearings of front wheel hub work in the similar conditions, so even if only one of the
bearing is broken, it is recommended that replace them in pairs.
(4) Wheel hub bearing is more sensitive, and in any case, need to be adopting the right way and the right tools.
The storage and transportation, as well as the installation of bearings, the bearing parts cannot be damaged.
(5) Installing the bearing should be in a clean and tidy environment, small particles enter into the bearing will a lso
reduce the bearing's life. When replace the bearing, maintaining a clean environment is very important. Do not
allow the hammer taping on the bearings; do not let the bearing fall on the floor (or a similar improper handling).
Before installing, you should check the status of the relevant parts, even if it is the tiny wear, it can also cause
poor fit, and result to the early expiration of the bearing.
(6) For the wheel hub bearing units, do not attempt to disassemble the hub bearings, or adjust the seal ring of the
wheel hub unit, otherwise the seal ring will be damaged and cause water or dust entering. Even the orbit of the
seal ring and the inner ring will be damaged, causing the bearing permanently disabled.
(7) Many bearings are sealed; s uch bearings do not need to load the grease in its entire life cycle. Other non-sealed
bearings such as double row tapered roller bearing, when installing it, you should add the grease lubricatio n.
The Tools and Accessories
1.
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Overview ………………………………………………………………………………
44
2. Technical
Parameters…………………………………………………………………………44
3.
Disassemble ……………………………………………………………………………
…45
4.
Re-installation…………………………………………………………………………
……46
5.
Maintenance ……………………………………………………………………………
…54
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The Tools and Accessories
1. Overview
The tools of N125 and accessories including tool box assembly, jack, combined socket, rim pry bar and
dual-purpose screwdriver, and etc. The tool box is in the left behind of the cargo box, fixed on the vehicle chassis.
Jack and accessories are in the cab.
2. Technical Parameters
2 ton hydraulic jack 1
Jack fixed bolt assembly 1 M8X1.25
Triangle warning signs and
package. 1
Combined socket 1
Socket I 1
Socket II 1
Socket III 1
Dual-purpose screwdriver 1
Tool Bag 1
Rim pry bar 1
Outer packing carton 1
Jack support base assembly 1
The tool box assembly 1
Hexagonal flange bolt 4 M10X1.25
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3. Disassembly
3.1. Disassembly of the tool box assembly
Disassembly Order
1. Hexagonal flange bolt 2. Tool box assembly
The disassembly steps of tool box
Open the tool box latch, after opening the tool box
cover, use a socket remove the fixed bolts of the tool
box.
Visual Check
Check the tool box assembly for corrosion, wear ,
1
2
The tool box assembly
Tool box fixed bolt
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damage, deformation, and other abnormal conditions.
3.2 Disassembly of jack assembly
Disassembly order
1. Jack fixed bolt assembly 2.two ton hydraulic jack 3.hexagonal head bolt and spring washer components 4. big
washer 5.jack support
The disassembly steps of tool box
(1) Unscrew the fixed bolt assembly of jack, and take
out the jack.
(2) Dissemble the fixed bolt of the jack support, then
you can remove the jack support.
Visual Check
Check the jack whether it is good, or has the oil
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leakage phenomenon
4. Re-installation
Re-installation is in reverse order of disassembly. when re-installing, the tighten torque should refer to the
tighten torque table.
Reference torque table（N·m）
Serial number Name Torque Notes
1
Tool box fixed bolt
18
～
24
2
The fixed bolts of the jack
support
18
～
24
3
Jack fixed bolt assembly
Tighten
5. Maintenance
(1) When prying open, it requires smooth and steady, after prying heavy objects open at a later time, please check
that there is no abnormality. If no, please continue to jack it. You cannot arbitrarily lengthen long handle or
operate exces sively.
(2) Do not overload over-height. When socket appears red line, it indicates that you have reached the specified
height, you should stop jacking it.
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(3) When usin g the hydraulic jack, pay attention to the joint between the sealing part and the pipe joint, but must
ensure that it is safe and reliable.
(4) Hydraulic jack does not apply to acid, alkali or corrosive gases situations.
(5) When using the combined the socket to tighten the bolts and nuts, do not overexert, or exert impact torque.
When the tighten resistance continuously increase, you should slow down the rotation speed for fear of damaging
thread. When the torque is too large, please do not reload the sleeve on the handle of the torque wrench, or use a
hammer to trash. Do not continue to spin when reaching the preset torque, if continuing to spin, it will make the
torque exceeds a preset value greatly, in addition to cause serious damage to the wrench; it will also damage the
bolts and nuts.
