Exmark Lazer Z 4500-872 - Manual (Page 36)

Maintenance
13. Torque the nut to 75-80 in-lb (8-9 N-m), loosen,
then re-torque to 20-25 in-lb (2-3 N-m). Make
sure axle does not extend beyond either nut.
14. Reinstall the seal guards over the wheel hub and
insert wheel into caster fork. Reinstall 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.
Reapply thread locking adhesive.
Lubricate Brake Handle Pivot
Service Interval: Every 200 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Lubricate brake handle pivot with a spray type
lubricant or light oil.
Lubricate Deck Lift Pivot
Service Interval: Every 100 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Lubricate deck lift pivot with a spray type
lubricant or light oil.
Check Spark Plugs
Service Interval: Every 200 hours
Remove spark plugs, check condition and reset gaps,
or replace with new plugs. See Engine Owner’s
Manual.
Change Fuel Filter
Service Interval: As required
A fuel filter is installed between the fuel tank and the
engine. Replace when necessary.
Replacement Filters
Kawasaki Kawasaki
P/N 49019-7005
Kohler Kohler
P/N 24 050 13
Note: It is important to reinstall the fuel line hoses
and secure with plastic ties the same as they were
originally installed at the factory to keep the fuel line
away from components that could cause fuel line
damage.
Change Hydraulic System
Filter and Fluid
Service Interval: Every 500 hours
Note: Only use Exmark Hydro Filter–Part No.
116-0164 for summer or winter.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Raise the rear of machine up and support with
jack stands (or equivalent support) just high
enough to allow drive wheels to turn freely.
CAUTION
Raising the mower deck for service or
maintenance relying solely on mechanical
or hydraulic jacks could be dangerous. The
mechanical or hydraulic jacks may not be
enough support or may malfunction allowing
the unit to fall, which could cause injury.
Do Not rely solely on mechanical or hydraulic
jacks for support. Use adequate jack stands
or equivalent support.
3. Remove the pump drive belt.
4. Place a catch pan under the hydro.
5. Carefully clean area around the filters. It is
important that no dirt or contamination enter the
hydraulic system.
6. Using a socket, unscrew filters to remove and
allow oil to drain.
7. Before installing the new filters, apply a thin coat
of Exmark Premium Hydro Oil on the surface
of the two rubber seals.
8. Install the new filters and torque to 14 ft-lb (19
N-m).
9. Fill the hydraulic system as stated in Check
Hydraulic Oil Level section.
Exmark Premium Hydro Oil is recommended.
Refer to the chart for an acceptable alternative:
36