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5.1.20 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.
5.1.21 Change fuel filter
:
Service Interval: As Required
a) A fuel filter is installed between the fuel tanks and the engine. Replace
when necessary.
Replacement Filters
Briggs and Strattton Briggs P/N 695327
5.1.22 Change hydraulic system filter:
Service Interval: After First 250 hrs.
Then yearly thereafter
NOTE: Use only Exmark Part No. 103-2146.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Raise seat.
c) Carefully clean area around filter. It is important that no dirt or
contamination enter hydraulic system.
d) Unscrew filter to remove and allow oil to drain from reservoir.
IMPORTANT: Before reinstalling new filter, fill it with Mobil 1 15W-50 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.
e) Fill reservoir as stated in Section 5.1.11
f) Raise the rear of machine up and support with jack stands (or equivalent
support) just high enough to allow drive wheels to turn freely.
g) 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.
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.
5.1.23 Wheel hub
- slotted nut torque specification.
Service Interval: 500 hrs
When tightening the slotted nut on the wheel motor tapered shaft:
a) Torque the slotted nut to 125 ft. lbs (169 N-M).
b) Check distance from bottom of slot in nut to inside edge of hole. Two
threads (0.1”) or less should be showing.
c) If more than two threads (0.1”) are showing remove nut and install washer
(PN 1-523157) between hub and nut.
d) Torque the slotted nut to 125 ft. lbs (169 N-M).
e) Then tighten nut until the next set of slots line up with the cross hole in shaft.
f) Replace cotter pin.
NOTE: Do not use antisieze on wheel hub.