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Wheel Bearing Service (Fig. 3)
1. Park machine on a level surface and raise wheels to
aerate position. Engage parking brake, open hood and
disconnect engine spark plug wires.
2. Remove dust cap (Item 28) from end of wheel spindle.
3. Remove cotter pin (Item 27), slotted nut (Item 29) and
washer (Item 30). Slide wheel and hub off of spindle
shaft.
4. Pull seal (Item 34) out of wheel hub (Item 23).
5. Remove bearings (Item 32) from both sides of wheel
hub. Clean bearings in solvent. Make sure the bearings
are in good operating condition. Clean inside of wheel
hub. Check bearing cups (Item 33) for wear, pitting or
other noticeable damage. Replace worn or damaged
parts.
6. If bearing cups were removed from wheel hub, press
them into hub until they seat against the shoulder.
7. Pack both bearings with grease. Use No. 2 general
purpose lithium base grease containing E.P. additive.
Install one bearing into cup on inboard side of wheel
hub. Lubricate inside of new lip seal and press it into
wheel hub.
IMPORTANT: The lip seal (Item 34) must be pressed
in so it is flush with end of hub. Lip of seal must be
toward the bearing.
8. Pack inside of wheel hub with some grease (not full).
Install remaining bearing into bearing cup.
9. Slide hub onto spindle shaft and secure it in place
with flat washer and slotted nut. DO NOT tighten nut or
install cotter pin.
10. Adjust pre-load on wheel bearings by rotating wheel
by hand and tightening slotted nut until bearing binds
SLIGHTLY. Then, loosen nut until nearest slot and hole
in spindle line up. Install cotter pin. Correct end play of
adjusted assembly is 0.002 to 0.005 inches.
11. Put a coating of grease on inside of dust cap and
install dust cap on end of wheel spindle.
26
27
22
23
24
25
31
32
33
34
35
33
32
28 29 30
Figure 3
Repairs Page 7 - 4 Hydroject 3010