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7. Place the Wheel Guard (43 or 52) onto the Arbor
Housing, keeping the Dust Seal (36B) in place and
making sure the holes are aligned. Install the Guard
Lock Washers (48 or 56) and Wheel Guard Screws
(47 or 55). Tighten the two upper screws to 9.0 to
9.5 in–lb (10.25 to 10.75 Nm) torque. Tighten the two
lower Screws to 4.2 to 4.3 in–lb (4.75 to 5.50 Nm)
torque.
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.
MAINTENANCE SECTION
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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