Craftsman professional 107.289850 Manual Del Operador página 22

Maintenance Chart
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 tire pressure
Check mower blade stopping time
Check tractor and mower for loose hardware
Every 50 Hours or Annually *
Clean battery and cables
Check tractor brakes
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.
WARNING
Unintentional sparking can result in fire or elec-
tric shock.
Unintentional start-up can result in entangle-
ment, 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 en-
gines 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.
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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 *
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.
Check Tire Pressure
Tires should be checked periodically to provide the optimum
traction and to guarantee the best cut (see Figure 4).
NOTE: These pressures may differ slightly from the
"Maximum inflation" stamped on the side walls of the tires.
Check Mower Blade Stopping Time
WARNING
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.
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