Exmark Lazer Z SX Diesel Models 4500-501 Rev A - Manual (Page 35)

Maintenance
Change Fuel Filter/Water
Separator
Service Interval: Every 400 hours/Yearly
(whichever comes first)
(more often in dirty or
dusty conditions).
DANGER
Use of improper components can result in
system failure, fuel leakage and possible
explosion.
• Ensure that an Authorized Service Dealer
replace the fuel filter and any components
for the fuel system.
• Use only approved fuel lines, hose clamps
and fuel filters for high pressure systems.
Change Inline Fuel Filter
Service Interval: As required
An inline fuel filter is installed between the fuel tank
and the fuel pump. Replace when necessary.
Replacement Filters
Exmark P/N 112-7836
Change Hydraulic System
Filter
Service Interval: After the first 250 hours
Every 500 hours/Yearly
(whichever comes
first) thereafter
(Every 250 hours/Yearly if
using Mobil 1 15W50)
Note: Use only Exmark P/N 103-2146.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Raise seat.
3. Carefully clean area around filter. It is important
that no dirt or contamination enter hydraulic
system.
4. Unscrew filter to remove and allow oil to drain
from reservoir.
Important: Before reinstalling new filter, fill
it with Exmark Premium Hydro oil and apply
a thin coat of oil on the surface of the rubber
seal.
Turn filter clockwise until rubber seal contacts the
filter adapter, then tighten the filter an additional
2/3 to 3/4 turn.
5. Fill reservoir as stated in Check Hydraulic Oil
Level section.
Exmark Premium Hydro Oil is recommended.
Refer to the chart for an acceptable alternative:
Hydro Oil Change Interval
Exmark Premium Hydro
Oil (Preferred) 500 Hours
Mobil 1 15W50 250 Hours
6. Raise the rear of machine up and support with
jack stands (or equivalent support) just high
enough to allow drive wheels to turn freely.
7. Start engine and move throttle control ahead to
full throttle position. Move the speed control
levers to the full speed and run for several
minutes. Shut down machine and recheck oil
level.
Note: Do Not change 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 contaminates into the system.
Wheel Hub - Slotted Nut
Torque Specification
Service Interval: After the first 100 hours
Every 500 hours thereafter
When tightening the slotted nut on the wheel motor
tapered shaft:
1. Torque the slotted nut to 125 ft-lb (169 N-m).
2. Check distance from bottom of slot in nut to
inside edge of hole. Two threads (0.1 inch) or less
should be showing.
3. If more than two threads (0.1 inch) are showing
remove nut and install washer (P/N 1-523157)
between hub and nut.
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