Caster Pivot Bearings Pre-Load Adjustment; Cleaning; Clean Engine Cooling System; Remove Accumulated Debris From Engine - Exmark Laser Z XS Operator's Manual

Caster Pivot Bearings
Pre-Load Adjustment
Remove dust cap from caster and tighten nyloc
nut until washers are flat and back off 1/4 of a
turn to properly set the pre-load on the bearings.
If disassembled, make sure the spring washers are
reinstalled as shown in Figure 24.
Figure 24
1. Spring disc washers

Cleaning

Clean Engine Cooling
System
Service Interval: Before each use or daily
CAUTION
Excessive debris around the engine cooling
air intake and inside of the pump drive
belt compartment and damaged or missing
rubber baffles can cause the engine and
hydraulic system to overheat which can
create a fire hazard.
• Clean all debris from inside of pump drive
belt compartment daily.
• Clean debris from radiator screen and
core daily.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Clean all debris from inside of pump drive belt
compartment.
3. Wipe debris from screen in engine cover.
4. Rotate engine cover forward and wipe debris
from radiator core as required.
5. Inspect seals in engine cover and replace if
necessary.
Remove Accumulated Debris
from Engine
Service Interval: Before each use or daily
Engine parts should be kept clean to reduce the risk
of overheating and ignition of accumulated debris.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Remove air deflector panel from behind seat.
3. Clean around flywheel, cylinder head, injectors,
and injector pump.
4. Reinstall the air deflector panel.
43
Maintenance
(May be required more
often in dry or dirty
conditions.)