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Maintenance
Wheel Hub-Slotted Nut
Torque Specication
Service Interval: After the rst 100 hours
Every 500 hours thereafter
Torque the slotted nut to 140-155 ft-lb (190-210
N-m).
Note: Do Not use anti-seize on wheel hub.
Inspect PTO Clutching Belt
Tension
Service Interval: After the rst 2 hours
Check every 2 hours
for the rst 8 hours of
operation.
Every 40 hours thereafter.
1. Stop engine and wait for all moving parts to stop.
2. Engage PTO lever.
3. Look through the round hole in the left rear
corner of the engine deck to inspect blade
clutching belt tension. Bolt on blade engagement
linkage bellcrank and indicator arm should align
within 1/16 inch (1.6 mm) (see
Figure 16). Refer
to PTO Engagement Linkage for adjustment.
Figure 16
1. Engine deck 3. Align bolt to indicator
within 1/16 inch (1.6
mm)
2. Indicator 4. Turnbuckle
Thread Locking Adhesives
Thread locking adhesives such as “Loctite 242”
or “Fel-Pro, Pro-Lock Nut Type” are used on the
following fasteners:
• Pump sheave setscrews.
• Square head setscrews on hydro pump control
arms.
• OPC lever setscrews.
• Lower sheave retaining bolt on clutch arm.
• Shoulder bolts in ends of speed control crank.
• Sheave retaining bolt in end of engine crankshaft.
• Fuel tank bulkhead tting threads
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. See Check Mower
Blades section.
• Between engine crankshaft and pump and blade
drive sheaves.
• On clutch arm assembly between bearings and
shaft and between lower sheave and shaft.
• Between pump shafts and sheaves.
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