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h) Insert the assembled nut and axle into the wheel on the side of the wheel
with the new seal and bearing.
i) With the open end of the wheel facing up, fill the area inside the wheel
around the axle full of NGLI grade #1 multi-purpose grease.
j) Insert the second bearing and new seal into the wheel.
k) Apply a thread locking adhesive to the 2
nd
spacer nut and thread onto the axle
with the wrench flats facing outward.
l) Torque the nut to 75-80 in-lbs. (8-9 N-m), loosen, then re-torque to 20-25
in-lbs. (2-3 N-m). Make sure axle does not extend beyond either nut.
m) Re-install the seal guards over the wheel hub and insert wheel into caster
fork. Re-install caster bolt and tighten nut fully.
IMPORTANT: To prevent seal and bearing damage, check the bearing
adjustment often. Spin the caster tire. The tire should not spin freely
(more than 1 or 2 revolutions) or have any side play. If the wheel spins
freely adjust torque on spacer nut until there is a slight amount of drag.
4.1.16 Lubricate seat switch actuator
:
Service Interval: 160 hrs.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Unhook seat latch and tilt seat up.
c) Lubricate switch actuator rod with spray type lubricant or light oil.
4.1.17 Lubricate brake handle pivot
:
Service Interval: 160 hrs.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Lubricate bronze bushings on brake handle pivot with a spray type lubricant
or light oil.
4.1.18 Lubricate brake rod bushings
:
Service Interval: 160 hrs.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Unhook seat latch and tilt seat up.
c) Lubricate bronze bushings on each end of brake rod shaft with a spray type
lubricant or a light oil. Shaft is located under the console.
4.1.19 Lubricate motion control bronze bushings
:
Service Interval: 160 hrs.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Unhook seat latch and tilt seat up.
c) Lubricate bronze bushings on flange bearings securing the motion control
arm shafts with a light oil or a spray type lubricant.
4.1.20 Remove engine shrouds and clean cooling fins
:
Service Interval: 80 hrs.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Remove cooling shrouds from engine and clean cooling fins. Also clean
dust, dirt and oil from external surfaces of engine, which can cause
improper cooling.
c) Make sure cooling shrouds are properly reinstalled. Operating the engine
without cooling shrouds will cause engine damage due to overheating.