Great Wall Florid. Manual - part 11

GWFLORID Maintenance Manual

Transmission

037A Transmission’s Overall External Schematics ............43
Main Technical Parameters ...............................................43
Transmission's Proper Use and Care .................................44
Technical Specifications for Transmission Installation
and Adjustment ...................................................................44
Areas of Importance ...........................................................45
Troubleshooting ..................................................................46
037A Transmission Structural Schematics .........................47
Clutch .................................................................................48
Gear Shift Fork and Fork Shaft...........................................49
Transmission Case .............................................................50
Disassembling the Input Shaft Subassembly .....................56
Disassembling the Output Shaft Subassembly ..................60
Disassembling the Shift Cover Subassembly .....................64
Disassembling the Differential Subassembly .....................68

Transmission

Main Technical Parameters

Basic parameters of the 037A transmission

Max. input torque

115 N·m/4400-5200 rpm

Speed ratio for each gear

3.545

1.913

1.310

0.973

0.804

3.214

Main deceleration ratio

3.944

Odometer speed ratio

31/35 (currently no driven gear)

Center distance (mm)

Lubricant capacity (L)

1.8

Control method

Remote cable control

Netweight (kg)

Match engine

GW413EF

037A Transmission’s Overall External Schematics

The 037A transmission is a step mechanical transmission with differential, two-shaft front wheel drive

application. The forward gear has adopted the inertia synchronizer gear-shifting mechanism, which offers

smooth and easy gear shifting, reduces noise dramatically, and improves the service life of the gear - important

in achieving the overall economical efficiency. Regarding its control mechanism, the set steel ball and spring

allow the shifting gear to be quick, accurate with solid handling. The 5th gear transmission is equipped with an

interlocking mechanism to prevent accidental switching to reverse, to improve driving comfort and reliability.

GWFLORID Maintenance Manual

Transmission's Proper Use and Care

1. Transmission's proper operation

1.1 Shift the gear gently, not excessively.

1.2 Do not start with high speed.

1.3 To avoid premature abrasion of the gear shift fork, do not rest your hand on the gear lever while driving.

2. Model number of the lubricant to be used:

GL-4 80W-90 (For China domestic model)

GL-4 75W-90 (For alpine region model)

GL-5 140 (For high-temperature region model)

Caution: Please only use the lubricant with model numbers specified by the Great Wall Motor Co., Ltd.

Do not mix lubricants with different model numbers. Only fill with clean lubricant.

3. Areas of importance for new vehicle usage:

3.1 Before using a new vehicle, be sure to check the transmission and all exposed connectors and fastening

pieces, so as to avoid failure due to faulty installation or loose connections.

3.2 Since the new vehicle is still in the run-in period, the transmission's lubricant should be replaced after 5000 km

distance.

4. Transmission three-level maintenance:

4.1 Transmission level-one maintenance: During the first level of maintenance, the liquid level of the lubricant

should be checked to ensure that it is up to the oil-filling mouth. Add more if insufficient. Excessive low

oil level can lead to ineffective lubrication, as well as burning of the bearings and gears. Excessive high oil

level, however, can overheat the transmission or cause oil to leak. In addition, during the first level of main-

tenance, the breather plug should be checked and cleaned. If the breather plug is clogged, internal pressure

will build up and oil will leak from the transmission.

4.2 Transmission level-two maintenance: The transmission's lubricant should be replaced the first time that the

vehicle undergoes the second level of maintenance. Clean the transmission with kerosene. The quality of the

lubricant should be inspected during the future second level of maintenance practises. The lubricant should

be replaced if diluted, gummy, or dirty.

4.3 Transmission level-three maintenance: During the third level of maintenance, it should be removed for in-

spection, cleaning, and oil changing.

Technical Specifications for Transmission Installation and Adjustment

Inspect the axial play (δ) between the synchronizer ring and the gear shaft

Gear

(δ1)

(δ2)

(δ3)

(δ4)

(δ5)

Standard axial play (mm)

0.7-1.7

Gear

(δ1)

(δ2)

(δ3)

(δ4)

(δ5)

Standard axial play (mm)

0.1-0.4

0.1-0.6

0.1-0.4

0.1-0.6

0.1-0.55

Check the axial play (δ) between each gear

Transmission

Areas of Importance

Removal

During removal, all components should be gently handled to avoid knocking, especially the joint surface.

All components should be placed in the proper order to avoid misplacing and mistaking.

Installation

1. Clean all parts before installation (except rubber pieces and gaskets).

2. All oil seals, shaft retainers, and elastic pins should not be reused.

3. All rubbing surfaces should be coated with lubricant, and the lips of all oil seals should be coated with

grease.

4. During installation of the bearings, do not use any kind of rolling element to transmit pressure, and

make sure not to tilt it.

5. During the installation of synchronizer components, the two sides of the spring piston's openings

should alternate.

6. When the transmission is operating under normal working conditions, there should be no lubricant

leakage from any of the parts.

Transportation and storage

1. When transporting a transmission, make sure the conditions are dustproof and rainproof, as well as

take proper care not to damage it due to jolting, shaking, removal, or installation.

2. Transmission assembly should be stored in a ventilated, dustproof, and dry place.

3. Users with special transportation or storage requirements should have another discussion to reach an

agreement on this matter in the supply contract.

Use parts

Bolt code

Specifications

Quantity

Tighten-

ing torque

(N·m)

Differential case × differential ring gear

037-2303309

M12 × 1.0

123.6

Clutch housing × reverse gear arm

bracket subassembly

037-1702073

M8 × 1.25

17.2

No. 1 gear shift fork shaft × No. 1 gear

shift fork

037-1702056

M6 × 0.75

15.7

No. 2 gear shift fork shaft × No. 2 gear

shift fork

037-1702056

M6 × 0.75

15.7

Transmission case × clutch housing

037-1701012

M8 × 1.25

29.4

Transmission case × manipulation lid

subassembly

037-1702051

M8 × 1.25

12.0

Transmission case × position mechanism

component

037-1702042

M18 × 1.5

36.8

Transmission case × reverse gear idler

shaft × sealing ring

037-1701404

M8 × 1.25

29.4

Transmission case × hexagon head plug

037-1701016

M18 × 1.5

39.2

Transmission case × reverse gear switch

subassembly

037-1701022

M18 × 1.5

40.2

Transmission case × cable bracket

037-1701019

M8 × 1.25

11.3

Clutch housing × clutch slave cylinder

subassembly

037-1601019

M8 × 1.25

11.3

Select lever assembly × gear shifting

block

037-1702027

M8 × 1.25

38.0

Clutch housing × release fork support

nail

037-1601011

M10 × 1.25

36.8

Counterweight component × shift lever

component

037-1702030

M8 × 1.25

20.0

Release fork support nail

29.4

Thread fastening piece tightening torque table

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