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Maintenance
• 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:
• OPC lever hubs and cross-shaft
Note: Care must be used not to bond the
bearing, next to each OPC hub, to the cross-shaft
which could cause binding of the OPC levers and
erratic operation.
• 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
locations:
On threads of Blade Bolts Serial Nos. 540,000 and
Higher. See Check Mower Blades section for
instructions.
Dielectric Grease
Dielectric grease is used on all blade type electrical
connections to prevent corrosion and loss of contact.
Dielectric grease should not be applied to sealed
connectors.
Adjustments
Note: Disengage PTO, shut off engine, wait for
all moving parts to stop, engage parking brake, and
remove key before servicing, cleaning, or making any
adjustments to the unit.
Deck Leveling
See Adjusting the Cutting Height section in
Operation.
Pump Drive Belt Tension
Self-tensioning - No adjustment necessary.
Deck Belt Tension
Self-tensioning - No adjustment necessary.
Blade Drive Belt Tension
Self-tensioning - No adjustment necessary.
Park Brake Adjustment
1. Shut off engine and wait for all moving parts to
stop.
2. Disengage the park brake.
3. Remove the clevis pin from the park brake yoke.
Turn the yoke on the linkage until there is 3/16
inch (4.8 mm) to 1/4 inch (6.4 mm) clearance
between the park brake tire bars and the tires with
the park brake disengaged. Re-install the clevis
pin.
Hydro Drive Linkage
Adjustment
• Adjust Speed Control Linkage and Neutral
Safety Switch:
1. Stop engine and wait for all moving parts to
stop. Engage parking brake. Remove key or
spark plug wire(s).
2. Pull the speed control lever back to neutral.
Check that the neutral safety switch actuating
tab has depressed the plunger of the switch
so that there is no more than 3/16–1/4 inch
(4.8–6.4 mm) between the tab and the switch
(see Figure 17).
38
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