Subaru Legacy BN/BS (2015-2019) Service Manual: Inspection

Subaru Legacy BN/BS (2015-2019) Service Manual / Power assisted system (power steering) / Electric power steering gearbox / Inspection

1. UNIT INSPECTION

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

2. LIMIT

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

NOTE:

When fixing the steering gearbox assembly in a vise, apply a wooden piece on the flange portion.

Rack shaft sliding resistance:

Limit: 360 N (37 kgf, 81 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

Left-turn steering:

Service limit:

Direction : 0.4 mm (0.016 in) or less

Condition:

L: 5 mm (0.20 in)

P: 98 N (10 kgf, 22 lbf)

4. INPUT SHAFT PLAY

In radial direction:

Wear limit: 0.18 mm (0.0071 in) or less

Condition: P = 98 N (10 kgf, 22 lbf)

In axial direction:

Wear limit: 0.27 mm (0.0106 in) or less

Condition: P = 20 — 49 N (2 — 5 kgf, 4 — 11 lbf)

5. ROTATIONAL RESISTANCE OF GEARBOX

1. Using the ST, measure the rotational resistance of the steering gearbox assembly.

Preparation tool:

ST: SPANNER (34099PA100)

Service limit:

Maximum allowable resistance: 18 N (1.8 kgf, 4.0 lbf) or less

Difference between right and left rotational resistance: 20% or less

Installation

1. Before installation, check the steering gearbox. Electric Power Steering Gearbox > INSPECTION2. Install the steering gearbox assembly by tightening the bolts through the stiffener to the specified ...

Disassembly

CAUTION:When fixing the steering gearbox assembly in a vise, apply a wooden piece on the flange portion.1. Remove the tie-rod end (a) and lock nut (b) from the steering gearbox assembly.2. Remove the ...

Other materials:

Tachometer
The tachometer shows the engine speed in thousands of revolutions per minute. CAUTION Do not operate the engine with the pointer of the tachometer in the red zone. In this range, fuel injection will be cut by the engine control module to protect the engine from overrevving. ...