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Maintenance
• 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.
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.
Brake Adjustment
1. Shut off engine and wait for all moving parts to
stop.
2. Disengage the park brake.
3. Remove the hairpin in the park brake linkage.
Turn the linkage in the yoke 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 hairpin.
Speed Control Linkage
and Neutral Safety Switch
Adjustment
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Move speed control lever (located on console) to
the full forward position and check orientation of
tabs on the ends of the speed control crank, see
Figure 14. These tabs should be pointing straight
down at the 6 o’clock position or slightly forward.
Adjust threaded yoke at the bottom of speed
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