Wheel Hub - Slotted Nut Torque Specification; Thread Locking Adhesives; Mobil Hts Grease (Or Food-Grade Anti-Seize); Copper-Based Anti-Seize - Exmark LAZER Z HP 465 Operator's Manual

Maintenance
4. 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.
5. Fill reservoir as stated in Check Hydraulic Oil
Level section.
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.
4. Torque the slotted nut to 125 ft-lb (169 N-m).
5. Then tighten nut until the next set of slots line up
with the cross hole in shaft.
6. Replace cotter pin.
Note: Do Not use anti-seize on wheel hub.
Fuel Tank — Mounting
Hardware Specifications
Service Interval: As required
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.

Thread Locking Adhesives

Thread locking adhesives such as "Loctite 242"
or "Fel-Pro, Pro-Lock Nut Type" are used on the
following fasteners:
• Pump drive sheave set screws.
• Square head setscrews on Hydro pump control
arms.
• Sheave retaining bolt in the end of engine
crankshaft.
• Caster wheel spacer nuts.
• 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:
Fuel tank studs, where studs are inserted into tank.
Mobil HTS Grease (Or
Food-Grade Anti-seize)
Mobil HTS grease (or food-grade anti-seize) is used
in the following locations:
• Between the cutter housing spindle and bearings.
• Between the cutter housing spindle and sheave.
• Under top cutter housing bearing guard.

Copper-Based Anti-seize

Copper-based anti-seize is used in the following
location:
On threads of Blade Bolts. See Check Mower
Blades section.

Dielectric Grease

Dielectric grease is used on all blade type electrical
connections to prevent corrosion and loss of contact.
32