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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 4.1.12.
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.
4.1.25 Wheel hub
- slotted nut torque specification.
Service Interval: After First 100 hrs
Then every 500 hrs thereafter
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 antiseize on wheel hub.
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) Square head setscrews on Hydro pump control arms.
c) Sheave retaining bolt in the end of engine crankshaft.
d) Caster wheel spacer nuts
e) Fuel tank bulkhead fitting nuts.
Adhesives such as “Loctite RC/609 or RC/680” or “Fel-Pro
Pro-Lock Retaining I
or Retaining II” are used on the following:
a) Fuel tank studs, where studs are inserted into tank.