POWER ASSISTED SYSTEM (POWER STEERING) > Electric Power Steering Gearbox [LHD Model]

INSPECTION

1. BASIC INSPECTION

Check components for wear, damage or other faults. Adjust or replace if necessary.

2. SERVICE LIMIT

Make a measurements as follows. If it exceeds the specified service limits, adjust or replace.

NOTE:

when fixing the gearbox in a vise, apply a wooden piece on the flange portion.

Rack shaft sliding resistance:

Service limit

314 N (32 kgf, 71 lbf) or less

Left/right differential of sliding resistance:

20% or less

3. RACK SHAFT PLAY IN THE RADIAL DIRECTION

Right-turn steering:

Service limit

Direction

0.4 mm (0.016 in) or less

Direction

0.6 mm (0.024 in) or less

Condition

L: 5 mm (0.20 in)

P: 98 N (10 kgf, 22 lbf)

Left-turn steering:

Service limit

Direction

0.4 mm (0.016 in) or less

4. INPUT SHAFT PLAY

In radial direction:

Service limit

0.18 mm (0.0071 in) or less

Condition

P: 98 N (10 kgf, 22 lbf)

In axial direction:

Service limit

0.27 mm (0.0106 in) or less

Condition

P: 20 — 49 N (2 — 5 kgf, 4 — 11 lbf)

5. TURNING RESISTANCE OF GEARBOX

Using the ST, measure the gearbox turning resistance.

ST    34099PA100 SPANNER

Service limit:

Maximum allowable resistance:

13 N (1.3 kgf, 9.6 lbf) or less

Difference between right and left turning resistance:

20% or less