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4.1.25 Change hydraulic system filter
:
First Interval: 250 hrs.
Normal Interval: Yearly.
NOTE: Use only Exmark Part No.103-2146
a) Stop engine, wait for all moving parts to stop, and remove key. Engage
parking brake.
b) Carefully clean area around filter. It is important that no dirt or
contamination enter hydraulic system.
c) 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.
d) Fill reservoir as stated in Section 4.1.11.
CAUTION
POTENTIAL HAZARD
♦ Raising the mower deck for service or
maintenance relying solely on mechanical
or hydraulic jacks could be dangerous.
WHAT CAN HAPPEN
♦ The mechanical or hydraulic jacks may
not be enough support or may
malfunction allowing the unit to fall, which
could cause injury.
HOW TO AVOID THE HAZARD
♦ DO NOT rely solely on mechanical or
hydraulic jacks for support. Use adequate
jack stands or equivalent support.
e) Raise the drive wheels off of the ground and support with jack stands (or
equivalent support) just high enough to allow drive wheels to turn freely.
f) Start engine and move throttle control ahead to full throttle position. Move
the motion 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.
4.1.26 Fuel Tank
– mounting hardware specification
When installing the nuts on the fuel tank studs, fully tighten the nyloc nut and
back off 1/2 turn. This allows for normal fuel tank expansion and contraction with
changes in temperature and fuel levels.
4.1.27 Thread locking adhesives such as “Loctite 242” or “Fel-Pro, Pro-Lock Nut Type”
are used on the following fasteners:
a) Pump drive sheave set screws.
b) Line shaft sheave setscrews.