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8.

  For Models 77H90H84, 77H90H84-EU, 77H120H84 and 

77H120H84-EU,

 install a Wheel Flange (44), Wheel and the 

other Wheel Flange (44) onto the Arbor (35) so that the keys are 

opposite each other.

 

For Models 77H120H63, 77H120H63-EU, 77H150H63 and 

77H150H63-EU,

 install a Wheel Flange (53) so the pin in the 

Arbor (36) enters the hole in the side of the flange. Install the 

Wheel and the other Wheel Flange (53).

9.  Using an applicable spanner wrench inserted into the pin 

hole of the inboard flange to hold the arbor, install the Wheel                 

Nut (46 or 54) with an open-end wrench. Only tighten sufficiently 

to drive the wheel and prevent slippage. Remove the Arbor 

Housing from the vise.

10. 

For Models 77H90L10, 77H90L10-EU, 77H120L10 and  

77H120L10-EU,

 install the Wheel Bearing Cap (60), Dust  

Washer (60B) and Cap Spring (60A) on the Arbor (37). Press the 

Wheel End Bearing (59) on the end of the Arbor.

11. Grasp the Arbor (37) in a vise, spline end up.

12. Install the Bearing Lock Washer (58) and Bearing Locknut (57) 

onto the Arbor (37). Tighten the Locknut snugly. Bend the tangs 

of the Bearing Lock Washer into the grooves of the Bearing 

Locknut.

13. Remove the Arbor from the vise.

14. Grasp the Arbor Housing (22) in a vise, threaded end up.

15. Lubricate with 3 to 4 cc of 

Ingersoll Rand

 No. 68 Grease and 

install the Arbor Coupling (34) into the Arbor Housing and onto 

the spline of the rotor shaft.

16. Slide the spline of the Arbor (37) into the Arbor Coupling. Tighten 

the Wheel Bearing Cap to 25 to 30 ft-lb (34 to 41 Nm) torque.

17. Using a No. 74RAQT4-254 Cone Wheel Arbor Wrench to hold 

the Arbor (37), install the cone wheel turning clockwise until       

hand-tight. Remove the Arbor Housing from the vise.

18. 

For Model 77H90G6,

 press the Wheel End Bearing (63) onto the 

Arbor (38).

19. Grasp the Arbor (38) in a vise, spline end up.

20. Install the Bearing Lock Washer (62) and Bearing Locknut (61) 

onto the Arbor (38). Tighten the Locknut snugly. Bend the tangs 

of the Bearing Lock Washer into the grooves of the Bearing 

Locknut.

21. Remove the Arbor from the vise.

22. Grasp the Arbor Housing (22) in a vise, threaded end up.

23. Lubricate with 3 to 4 cc of 

Ingersoll Rand

 No. 68 Grease and 

install the Arbor Coupling (34) into the Arbor Housing and onto 

the spline of the rotor shaft. Slide the spline of the Arbor (38) into 

the Arbor Coupling (34).

24. Install the Wheel Bearing Cap (64), Cap Spring (64A) and Dust 

Washer (64B). Tighten the Cap to 25 to 30 ft-lb (34 to 41 Nm) 

torque.

25. Install the Collet (66) into the end of the Arbor.

26. Use a No. DG120-69 Collet Arbor Wrench to hold the Arbor. Use 

a No. DG120-69 Collet Nut Wrench to tighten the Collet Nut (65). 

Remove the Arbor Housing from the vise.

27. 

For Models 77H30B106, 77H30B106-EU, 77H50B106 and 

77H50B106-EU,

 press the Wheel End Bearing (73) into the Arbor 

Housing (22) and onto the Arbor (39).

28. Grasp the Arbor Housing (22) in a vise, threaded end up.

29. Install the Wheel Bearing Cap (74), Cap Spring (74A) and Dust 

Washer (74B). Tighten the Cap to 25 to 30 ft-lb (34 to 41 Nm) 

torque.

30. Install the Wheel End Bearing Nut and tighten snugly.

31. Install the Wire Brush Long Spacer (77), Wire Brush Short  

Spacer (77A), Wire Brush, Wire Brush Short Spacer (77A), Wire 

Brush Lock Washer (76) and Wire Brush Nut (78). Use a wrench 

on the flats of the Wheel End Bearing Nut (75) to hold the Arbor. 

Using an open-end wrench, tighten the Wire Brush Nut (78) 

securely. Remove the Arbor Housing from the vise.

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