NOTICE Excessive trailer loads can cause loss of traction
and loss of control on slopes. Reduce trailer weight when
operating on slopes. The surface being driven on greatly
impacts traction and stability. Wet or slippery surfaces can
greatly reduce traction and the ability to stop or turn.
Mower Deck Removal and Installation
Refer to the Mower Deck Manual for removal and installation
instructions.
Maintenance
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.
Maintenance Schedule
RIDER AND MOWER
Every 8 Hours or Daily
Check the Safety interlock system
Remove unwanted material from the rider, mower deck, and engine
compartment
*
Every 25 Hours or Annually
Check the tire pressure
Check the mower blade stopping time
Check for loose hardware on the rider and mower
*
Every 50 Hours or Annually
Clean the battery and cables
Check the rider brakes
See a Briggs & Stratton Authorized Service Dealer Annually
Lubricate the rider and mower.
Mower blades check**
*Whichever comes first.
**Check the mower blades more often in regions with sandy soils or
high dust conditions.
First 5 Hours
Change the engine oil
Every 8 Hours or Daily
20
ENGINE
Check the engine oil level
*
Every 25 Hours or Annually
Clean the air filter and pre-cleaner**
*
Every 50 Hours or Annually
Change the engine oil
Replace the oil filter
Annually
Replace the air filter
Replace the pre-cleaner
See Dealer Annually to
Inspect the muffler and spark arrester
Replace the spark plugs
Replace the fuel filter
Clean the air cooling system
*Whichever comes first.
**Clean more often in dusty conditions or when airborne material is
present.
Mower Blade Stop Time
WARNING
If the mower blade does not come to a complete stop within
5 seconds, the clutch must be adjusted. Do not operate the
machine until the correct adjustment has been performed by
a Briggs & Stratton Authorized Service Dealer.
The mower blades and mower drive belt must stop within
five seconds after the electric Power Take-Off (PTO) switch
turns OFF. If the mower drive belt does not stop within five
seconds, see a Briggs & Stratton Authorized Service Dealer
for repairs.
Clean Debris Out of Engine
Compartment
WARNING
Keep unit free of grass, leaves, and other debris.
Flammable debris may be ignited by hot engine parts
causing serious injury or property damage.
1. Stop the engine and let the unit to cool.
2. Remove all debris from the engine compartment.
3. Make sure that the cooling fins, screens, and areas
around the exhaust system are clean.
Change Engine Oil
See Figure: 22, 23, 24
Used oil is a hazardous waste product and must be disposed
of correctly. Do not discard with household waste. Check
with your local authorities, service center, or dealer for safe
recycling facilities.
ENGINE