Change Hydraulic System Filter And Fluid; Wheel Hub - Slotted Nut Torque Specification - Exmark Laser Z Operator's Manual

Fuel Pressure Relief And
Priming Procedure (Kohler
EFI Units Only)
Service Interval: As required
WARNING
Fuel system components remain under high
pressure, even when the engine is stopped.
Failure to relieve pressure from the system
can cause gasoline to spray or spill. Spilled
fuel or fuel vapors could be ignited by hot
parts.
• Allow the engine to cool completely.
• See your Engine Service Dealer to safely
relieve the pressure from the fuel system
before attempting to service the fuel
system.
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:
Hydro Oil
Exmark Premium Hydro
Oil (Preferred)
Mobil 1 15W50
10. Remove the catch pan and properly dispose of
hydro oil and filter according to local codes.
11. Re-install the pump drive belt.
12. Start engine and move throttle control ahead to
full throttle position. Move the speed control
levers to the full speed and run for one minute.
Shut down the machine, allow the hydros to cool
and recheck oil level.
13. Remove the jack stands.
Note: Do Not change the hydraulic system oil
(except for what can be drained when changing filter),
unless it is felt the oil has been contaminated or been
extremely hot.
Changing oil unnecessarily could damage hydraulic
system by introducing contaminants into the system.
Wheel Hub - Slotted Nut
Torque Specification
Service Interval: After the first 100 hours
See Figure 24 to determine which slotted nut has
been installed on the unit.
37
Maintenance
Change Interval
500 Hours
250 Hours
Every 500 hours thereafter