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ASSEMBLY

ASSEMBLY

Measure dimension “A” of the drive pinion shaft.

ST 32005073 GAUGE


Using a press, force-fit a new roller bearing in position.

Note

If too much pressure is applied, the roller bearing will not turn easily.



(A)

Drive pinion shaft

(B)

Roller bearing



After fitting a new O-ring to the shaft, attach the drive pinion collar to the shaft.

Install the lock washer to drive pinion shaft in proper direction.

Tighten a new lock nut with ST1, ST2 and ST3.

Calculate lock washer and lock nut specifications using the following formula.

T2 = L2/(L1 + L2) × T1

T1: 116 Nm (11.8 kgf-m, 85.3 ft-lb)

[Required torque setting]

T2: Tightening torque

L1: ST2 length 0.072 m (2.83 in)

L2: Torque wrench length

Example:

Torque wrench length

m (in)

Tightening torque

Nm (kgf-m, ft-lb)

0.4 (15.75)

98 (10.0, 72)

0.45 (17.72)

100 (10.2, 73.8)

0.5 (19.69)

101 (10.3, 74.5)

0.55 (21.65)

102 (10.4, 75)



ST1 32005120 HOLDER

ST2 32005154 WRENCH

ST3 32005153 ADAPTER

Note

Install ST2 to torque wrench as straight as possible.



Measure the starting torque of the bearing. Make sure the starting torque is within the specified range. If out of the allowable range, replace the roller bearing.

Starting torque:

7.6 — 38.1 N (0.776 — 3.88 kgf, 1.7 — 8.6 lb)


Stake the lock nut securely at two places.

Measure dimension “B” of the drive pinion shaft.

ST 32005073 GAUGE


The thickness “t” (mm) of the drive pinion shim.

t = 6.5±0.0625 − (B − A)

Select three or less shims from following table.

Available drive pinion shims

Part No.

Thickness mm (in)

32006445

0.150 (0.0059)

32006446

0.175 (0.0069)

32006447

0.200 (0.0079)

32006448

0.225 (0.0089)

32006449

0.250 (0.0098)

32006450

0.275 (0.0108)