QUARTERLY NOTES (CONTINUED)
ROAD WHEEL AND TRAILING IDLER HUB BEARINGS
Two types of hubs are used on road wheels and
trailing idler wheels. One type uses oil (OE/HDO or
OEA) for lubrication, the other type uses grease
(GAA) for lubrication. Check the road wheel hubs
and idler wheel hubs on your vehicle before
A Oil Filled Hubs
Check oil level.
1 Place vehicle on level ground.
2 Remove check plug (1) and observe that oil is level with
bottom of hole. Fill if necessary (steps 3 thru 6),
3 Rotate wheel until fill plug (2) and drain plug (3) are about
OIL FILLED HUBS
4 Clean area and remove fill plug (2).
5 Fill to bottom of level hole with oil (OE/HDO or OEA). Allow
time for oil to reach oil cavities.
Dry cleaning solvent (SD2) is toxic and flammable.
Wear protective goggles and gloves and use only in
6 Clean fill plug (2) and check plug (1) with solvent SD2 and
B Grease Filled Hubs
GREASE FILLED HUBS
1 Lubricate with GAA.
2 Lubricate fitting (1) with GAA until grease comes out of
safety relief valve (2).
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