Drive Pinion Shaft Assembly: Assembly

Measure dimension "A" of the drive pinion shaft.

ST 32005073 GAUGE

Fig 1: Measuring Dimension "A" Of Drive Pinion Shaft

Courtesy of SAAB-SCANIA OF AMERICA, INC.

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.

Fig 2: Fitting New Roller Bearing

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Drive pinion shaft
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) x 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:

TIGHTENING TORQUE

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.

Fig 3: Installing ST2 To Torque Wrench As Straight

Courtesy of SAAB-SCANIA OF AMERICA, INC.

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)

Fig 4: Measuring Starting Torque Of Bearing

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Stake the lock nut securely at two places.

Measure dimension "B" of the drive pinion shaft.

ST 32005073 GAUGE

Fig 5: Measuring Dimension "B" Of Drive Pinion Shaft

Courtesy of SAAB-SCANIA OF AMERICA, INC.

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

t = 6.5+/-0.0625 - (B - A)

Select three or less shims from following table.

THICKNESS REFERENCE

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)