Maintenance
Maintenance Schedule
WARNING
Unintentional sparking can result in fire or electric shock.
Unintentional start-up can result in entanglement, traumatic
amputation, or laceration.
Before performing adjustments or repairs:
• Disconnect the spark plug wire and keep it away from the
spark plug.
• Disconnect battery at negative terminal (only engines with
electric start).
• Use only correct tools.
• Do not tamper with governor spring, links, or other parts
to increase engine speed.
• Replacement parts must be of the same design and
installed in the same position as the original parts. Other
parts may not perform as well, may damage the unit, and
may result in injury.
• Do not strike the flywheel with a hammer or hard object
because the flywheel may shatter during operation.
TRACTOR AND MOWER
Every 8 Hours or Daily
Check safety interlock system
Clean debris off tractor and mower deck
Clean debris from engine compartment
Every 25 Hours or Annually *
Check mower blade stopping time
Check tractor and mower for loose hardware
Check tire pressure
Every 50 Hours or Annually *
Check tractor brakes
Clean battery and cables
See Dealer Annually to
Lubricate tractor and mower
Check mower blades **
* Whichever comes first
** Check blades more often in regions with sandy soils or high
dust conditions.
ENGINE
First 5 Hours
Change engine oil
Every 8 Hours or Daily
Check engine oil level
Every 25 Hours or Annually *
Clean engine air filter and pre-cleaner **
Every 50 Hours or Annually *
16
ENGINE
Change engine oil
Replace oil filter
Annually
Replace air filter
Replace pre-cleaner
See Dealer Annually to
Inspect muffler and spark arrester
Replace spark plug
Replace fuel filter
Clean engine air cooling system
* Whichever comes first
** Clean more often in dusty conditions or when airborne debris
is present.
Checking Tire Pressures
Tire pressure should be checked periodically (see Figure 16),
and maintained at the levels shown in the Specifications chart.
Note that these pressures may differ slightly from the "Max
Inflation" stamped on the side-wall of the tires. The pressures
shown provide proper traction and extend tire life.
Check Mower Blade Stopping Time
Mower blades and mower drive belt should come to a complete
stop within five seconds after the electric PTO switch is turned
off.
WARNING
Unsafe Operation Hazard
If the mower blade does not come to a complete stop within
5 seconds, the blade must be adjusted. Do not operate the
machine until the proper adjustment has been performed by
an authorized dealer.
Check the mower blade for proper function. See Safety Interlock
System Tests. The blade should stop rotating in 5 seconds or
less after moving the blade control to the OFF position.
Battery Maintenance
WARNING
Explosion and Fire Hazard
When removing or installing battery cables, disconnect the
negative cable FIRST and reconnect it LAST. If not done in
this order, the positive terminal can be shorted to the frame
by a tool.
Cleaning the Battery and Cables
1. Disconnect the cables from the battery, negative cable first
(B, Figure 17).