Steering Gearbox: Inspection: Limit

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

CAUTION:

When making a measurement, secure the gearbox in a vise using ST.
When fixing the gearbox in a vise, apply a wooden piece on the flange portion.

Preparation tool:

ST1: STAND (926200000)

ST2: BOSS D (34199AG000)

Rack shaft sliding resistance

Fig 1: Measuring Rack Shaft Sliding Resistance

Courtesy of SUBARU OF AMERICA, INC.

Limit: 343 N (35.0 kgf, 77 lbf) or less

Left/right differential of sliding resistance: 20% or less

Rack shaft play in the radial direction

Right-turn steering

Fig 2: Checking Rack Shaft Play

Courtesy of SUBARU OF AMERICA, INC.

Limit

Direction: up and down: 0.4 mm (0.016 in) or less

Direction: side to side: 0.4 mm (0.016 in) or less

Condition

Weighting point

L1: 10 mm (0.39 in)

P: 98 N (10 kgf, 22 lb)

Measuring point

L2: 5 mm (0.2 in)

Left-turn steering

Fig 3: Checking Left-Turn Steering

Courtesy of SUBARU OF AMERICA, INC.

Service limit:

Direction: up and down: 0.4 mm (0.016 in) or less

Direction: side to side: 0.6 mm (0.024 in) or less

Condition

L: 5 mm (0.20 in)

P: 98 N (10 kgf, 22 lbf)

Input shaft play

In radial direction

Fig 4: Checking Input Shaft Play In Radial Direction

Courtesy of SUBARU OF AMERICA, INC.

Limit

0.26 mm (0.0102 in) or less

Condition

P: 98 N (10 kgf, 22 lbf)

In axial direction

Fig 5: Checking Input Shaft Play In Axial Direction

Courtesy of SUBARU OF AMERICA, INC.

Limit

Without play

Rotational resistance of gearbox

Using the ST, measure the gearbox turning resistance.

Preparation tool:

ST: SPANNER (34099PA100)

Fig 6: Measuring Gearbox Turning Resistance Using ST

Courtesy of SUBARU OF AMERICA, INC.

Service limit:

Maximum allowable resistance: 21 N (2.14 kgf, 4.7 lbf) or less

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