Exmark Lazer Z Operator's Manual page 38

l) 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.
Re-apply threadlocking adhesive.
5.1.17 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.
5.1.18 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.
5.1.19 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 (bushings are located to the inside of the flange bearings).
5.1.20 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.
5.1.21 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 shroud clean-out covers 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 shroud clean-out covers are reinstalled. Operating the
engine without cooling shroud clean-out covers will cause engine damage due
to overheating.
5.1.22 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.
5.1.23 Change fuel filter:
Service Interval: As Required
a) A fuel filter is installed between the fuel tanks and the engine. Replace
when necessary.
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