Page 707 - Workshop Manual - Aumark (BJ1051)

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Front axle-fore axle

(f) Using micrometer, check knuckle pin hole of fore axle.
• Measure diameter of knuckle pin hole.
Diameters:

Diameter
Vehicle model
Standard value Limit value

1051 series 32.000 mm 32.000~32.039 mm

1061 series 32.000 mm 32.000~32.039 mm
1089 series 40.000 mm 40.026~40.051 mm

If diameter of knuckle pin hole is out of limits, replace with a new fore axle.
• Measure inclination angle of knuckle pin hole.

Inclination angles:
Inclination angle
Vehicle model
Standard value Limit value

1051 series 8° 7°45’~8°15’
24
1061 series 8° 7°45’~8°15’

1089 series 7°30’ 7°15’~7°45’

If inclination angle of knuckle pin hole is out of limits, replace with a new fore axle.
• Check upper and lower ports of knuckle pin hole for serious wear (bell mouth).
Replace with a new fore axle as needed.
• Check upper and lower faces of knuckle pin hole for serious wear. Replace with a new
fore axle as needed.

(g) Check fore axle for cracks or leaf spring seat for wear and serious sink. If any of above
defects exists, replace with a new fore axle.
9. Installing fore axle
10. Removing front leaf spring U-bolt (refer to “Chapter 21 Front Suspension-Front Leaf
Spring Assembly, Overhaul”)
11. Removing steering knuckle (refer to “Chapter 24 Front Axle-Steering Knuckle,
Overhaul”)
12. Removing steering linkage (refer to “Chapter 24 Front Axle-Steering Linkage,
Overhaul”)
13. Removing front brake assembly (refer to “Chapter 26 Service Brake-Front Wheel
Brake, Overhaul”)
14. Removing front wheel hub with brake drum assembly (refer to “Chapter 24 Front
Axle-Front Wheel Hub with Brake Drum Assembly, Overhaul”)
15. Removing front wheel and tire assembly (refer to “Chapter 23 Wheels and Tires-Front
Wheel and Tire Assembly, Replacement”)

Page 707