Operation and maintenance manual

Rear Axle Group - Differential Drive Head

Section 160-0020

SM 2151 6-02

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DIAGNOSIS CHART

CONDITION REASON REMEDY

Vibration Broken gear teeth, worn bearings Replace gear or bearings

Continued noise Worn gears or bearings Replace gears or bearings

Overheating Loss of lubricant Replace faulty joint or seal and refill

Crownwheel adjustment too tight Readjust

Seized bearings Replace bearings

Noise on turns Worn diff side gears and pinions Replace diff side gears and pinions

Worn or damaged trunnions Replace trunnions

Loss of lubricant Replace faulty joint or seal and refill

Loose nuts on differential casings Tighten nuts to specified torque

Loss of drive Worn driveshaft splines Replace driveshaft

Broken driveshaft Replace driveshaft

SPECIAL TORQUE SPECIFICATIONS

TORQUE

FIG. NO. ITEM NO. ITEM NAME Nm lbf ft

1 1 Bolt 34 - 41 25 - 30

1 18 Crownwheel Nuts 155 - 171 114 - 126

1 32 Setscrew 244 - 271 180 - 200

1 34 Coupling Flange Nut 1085 - 1220 800 - 900

1 41 Axle Casing Nut 230 - 258 170 - 190

1 47 Diff Housing Nut 61 - 66 45 - 49

1 51 Diff Strap Nut 502 - 542 370 - 400