Toyota CH-R Service Manual: Inspection

Toyota CH-R Service Manual / Steering Column / Steering Column Assembly / Inspection

INSPECTION

PROCEDURE

1. INSPECT PRELOAD

(a) Secure the steering column assembly in a vise using aluminum plates, cloths and wooden blocks.

NOTICE:

  • Do not overtighten the vise, as the steering column assembly may become deformed.
  • Support the steering column assembly with wooden blocks or similar items to ensure that it does not fall.

*a

Wooden Block

*b

Cloth

(b) Install 2 service nuts to the steering main shaft.

Recommended Service Nut:

Thread Diameter

12.0 mm (0.472 in.)

Thread Pitch

1.25 mm (0.0492 in.)

*a

Service Nut

(c) Simultaneously rotate the service nut that was installed first counterclockwise and rotate the service nut that was installed second clockwise to lock them.

NOTICE:

Do not apply excessive torque to the service nuts by using a tool such as an impact wrench.

HINT:

The service nuts are used for turning the steering main shaft during inspection of the steering main shaft rotating torque.

Remove the service nuts after performing this inspection.

(d) Using a torque wrench, turn the steering main shaft at a constant rate of approximately 1 revolution every 4 seconds and measure the preload.

Preload:

1.2 to 2.4 N*m (13 to 24 kgf*cm, 11 to 21 in.*lbf)

If the preload is not as specified, replace the power steering ECU assembly or electric power steering column sub-assembly with a new one.

(e) Remove the 2 service nuts.

2. INSPECT STEERING COLUMN ASSEMBLY

(a) Check that the 2 bushings are securely installed to the steering column assembly.

If the bushings are deformed, missing or damaged, replace the electric power steering column sub-assembly with a new one.
    Disassembly
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    Installation
    INSTALLATION PROCEDURE 1. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 2. INSTALL STEERING COLUMN ASSEMBLY NOTICE: Make sure that the wire harness is not interfering with the steering column assembly ...

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