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 ...

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