Pull off the dust cap (1). With an adjustable wrench, remove jam-nut (2).
Pull wheel assembly (3) part way out and note that the outer bearing (4) is loose. Remove this bearing and wrap
in a shop towel (D6) to prevent the contamination of wheel bearing grease.
Then remove the wheel assembly (3) entirely from the axle spindle (5). The inner bearing (6) is retained by the
grease seal (7).
The wheel bearings (4) and (6) require periodic maintenance depending on severity of use. Remove the inner
bearing (6) by removing and discarding the grease seal (7).
Make sure grease, seals and bearings are in good condition before reassembly.
Clean the wheel bearings (4) and (6) of old grease using kerosene (D5) and kerosene soaked brush. Dry wheel
bearings with shop towels and repack the wheel bearings with lithium based grease (D4).
Lay the wheel and tire assembly flat on the ground with the inner hub facing up. Reassemble inner wheel
bearing (6) by placing it into wheel hub and securing it with a new grease seal (6). Tap the grease seal (6) into
the wheel hub using a block of wood and a hammer. Position the block of wood over the seal so that tapping
with the hammer does not deform the seal.
Check the tire pressures. They should be inflated to 60 psi. Align the cart spindle (5) with the grease seal (7)
and inner wheel bearing (6) in the wheel assembly (3) before pushing it over the spindle (5).
Insert the outer wheel bearing (4) into the wheel hub and over the spindle. Clean the grease from the threads.
Place two drops of thread lock fluid on the spindle threads. Hand tighten the jam-nut (2) against the wheel
bearing (4). Tighten jam-nut (2) with an adjustable wrench an additional 1/4 to 1/2 of a flat.
Place dust cap (1) over the wheel hub of the wheel assembly (3).
END OF TASK