Chery Tiggo 5 (T21). Service manual - part 311

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HYDRAULIC ASSIST STEERING

GENERAL INFORMATION

Description

RT21290010

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Hydraulic assist steering system consists of power steering pump assembly, steering gear assembly, steering 
fluid pipe and steering fluid reservoir assembly, etc. This system can reduce the steering effort when driver 
operates steering wheel, thus improving operation convenience and driving safety.

Steering Gear Assembly

Steering gear assembly is rack & pinion type, which is characterized by simple and compact construction and 
high steering sensitivity. The piston-rod is integrated with rack, and there is a boot at the connection between 
steering tie rod assembly and rack. The length of steering tie rod can be adjusted properly to match with the 
toe-in. Tie rod ball pin assembly and steering knuckle are connected and tightened by locking nut.

Power Steering Pump Assembly

Power steering pump assembly is connected with steering gear assembly through high pressure fluid pipe, 
and connected with steering fluid reservoir assembly through fluid suction pipe. Never operate the power 
steering pump assembly without fluid. Try to avoid turning the steering wheel to limit position for more than 5 
seconds during use.

Steering Fluid Pipe

Steering fluid pipe is used to deliver power steering fluid. Steering fluid pipes are divided into steel pipe, hose 
and hybrid type according to the length and operating features of each component. Ferrule connection is 
adopted between steel pipe and hose of high pressure fluid pipe assembly. The Joint bolt and O-ring are used 
between steel pipe and component, and the hose and clamp are used between hose and component. And all 
these provide reliable sealing.

Steering Fluid Reservoir Assembly

Main functions of steering fluid reservoir assembly are to store and supply fluid to the steering fluid pump and 
system.

Operation

Steering gear assembly converts the circular motion of steering wheel into the linear motion of rack by 
engaging pinion and rack inside the steering gear assembly. Power steering pump assembly delivers fluid into 
steering gear assembly to drive pistons to move toward the direction made by driver. Piston transmits force to 
steering knuckle by steering tie rod assembly, thus reducing the steering effort needed when driver turns 
steering wheel. If steering assist is ineffective, more steering effort is needed.

1 - Ball Pin Locking Nut

2 - Right Steering Tie Rod Ball Pin

3 - Elastic Clamp

4 - Right Steering Tie Rod Boot

5 - Clamping Ring

6 - Right Steering Tie Rod Assembly

7 - Steering Gear Heat Insulation Cover

8 - Steering Gear Assembly

9 - Left Steering Tie Rod Assembly

10 - Left Steering Tie Rod Boot

11 - Steering Tie Rod Adjustment Nut

12 - Left Steering Tie Rod Ball Pin

13 - Fluid Return Pipe 1

14 - Fluid Return Pipe 2

15 - Steering Fluid Reservoir Cap

16 - Steering Fluid Reservoir

17 - Steering Fluid Reservoir Bracket

18 - Fluid Suction Pipe

19 - Hollow Bolt

20 - Power Steering Pump Assembly

21 - Idler Pulley

22 - Power Steering Pump Bracket

23 - High Pressure Fluid Pipe

24 - Cooling Pipe

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Specifications

Torque Specifications

Tool

Special Tool

Description

Torque (N·m)

Steering Gear Heat Insulation Cover Fixing Bolt

9 ± 1

High Pressure Fluid Pipe Bracket Bolt 1

9 ± 1

High Pressure Fluid Pipe Bracket Bolt 2

9 ± 1

Clamping Bolt Between High Pressure Fluid Pipe 
and Steering Gear Assembly

30 ± 3

Clamping Bolt Between Fluid Return Pipe and 
Steering Gear Assembly

30 ± 3

Fluid Return Pipe Bracket Bolt 1

9 ± 1

Fluid Return Pipe Bracket Nut 2

7 ± 1

Fluid Return Pipe Bracket Bolt 3

7 ± 1

Fluid Return Pipe Bracket Nut 4

7 ± 1

High Pressure Fluid Pipe Joint Hollow Bolt

40 ± 3

Cooling Pipe Bracket Nut 1

7 ± 1

Cooling Pipe Bracket Nut 2

7 ± 1

Mounting Bolt Between Steering Gear and Sub 
Frame

120 ± 10

Steering Tie Rod Locking Nut

45 ± 5

Power Steering Pump Bracket Fixing Bolt

25 ± 3

Coupling Bolt Between Power Steering Pump 
Assembly and Steering Pump Bracket

25 ± 3

Locking Nut Between Ball Pin Assembly and 
Steering Knuckle Assembly

45 ± 5

Mounting Bolt Between Steering Gear Assembly and 
Front Sub Frame Welding Assembly

120 ± 10

Steering Tie Rod Adjustment Nut

55 ± 5

Ball Pin Separator

RCH0000024