Exmark Lazer ZHP - Manual (Page 32)

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i) Put wheel and tire assembly on the unit and adjust by tightening the nyloc
nut until wheel will not turn freely. Back nut off 1/6 of a turn so the wheel
will just turn with a slight amount of drag.
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 per step i).
5.1.16 Lubricate seat switch actuator:
Service Interval: 160 hrs.
a) Stop engine and remove key.
b) Tilt seat up.
c) Lubricate switch actuator rod with spray type lubricant or light oil.
5.1.17 Lubricate brake handle pivot:
Service Interval: 160 hrs.
a) Stop engine and remove key.
b) Lubricate bronze bushings on brake handle pivot with a spray type
lubricant or light oil.
5.1.18 Lubricate brake rod bushings:
Service Interval: 160 hrs.
a) Stop engine and remove key.
b) Tilt seat up.
c) Lubricate bronze bushings on each end of brake rod shafts with a spray
type lubricant or a light oil. One shaft is located under the console. The
other is below and behind the seat.
5.1.19 Lubricate motion control bronze bushings:
Service Interval: 160 hrs.
a) Stop engine and remove key.
b) 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.
5.1.20 Remove engine shrouds and clean cooling fins:
Service Interval: 80 hrs.
a) Stop engine 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 reinstalled. Operating the engine without
cooling shrouds will cause engine damage due to overheating.
5.1.21 Check spark plugs:
Service Interval: 160 hrs.
a) Remove spark plugs, check condition and reset gaps, or replace with
new plugs. See Engine Owners Manual.