Maintaining Your Lawn Tractor - MTD YARD MACHINES 607 Operator's Manual

• Remove the hex nut and lock washer on the top of
ball joint. See Figure 12.
• Thread the ball joint toward the jam nut to shorten
the drag link. Thread the ball joint away from the
jam nut to lengthen the drag link.
• Replace hex nut and lock washer and retighten the
jam nut after proper adjustment is achieved.
NOTE:
Threading the ball joints too far onto the drag
links will cause the front tires to "toe-in" too far. Proper
toe-in is between 1/16" and 5/16".
Front tire toe-in can be measured as follows:
SECTION 7: MAINTAINING YOUR LAWN TRACTOR
WARNING:
maintenance or repairs, disengage PTO,
move shift lever into neutral position, set
parking brake, stop engine and remove key to
prevent unintended starting.
Engine
Refer to the Briggs & Stratton Operator/Owner
Manual (or Kohler engine's Owner's Manual) for
engine maintenance instructions.
Check engine oil level before each use as instructed in
the Briggs & Stratton Operator/Owner Manual (or
Kohler engine's Owner's Manual) packed with your
unit. Follow the instructions carefully.
Changing Engine Oil
NOTE:
Depending on the engine model found on your
tractor, it may be necessary to remove the tractor's side
panel in order to replace the oil filter (if so equipped).
• Unscrew oil fill cap and remove dipstick from the oil
fill tube. See Figure 13.
• Pop open the protective cap on the end of the oil
drain valve to expose the drain port. See Figure 13.
• Push the oil drain hose (packed with this manual)
onto the oil drain port. Route the opposite end of
the hose into an appropriate oil collection container
with a capacity of no less than 64 oz.
• Push the oil drain valve in slightly, then rotate
counterclockwise and pull outward to begin
draining oil. See Figure 13.
• Service the oil filter (if so equipped) as instructed
in the separate Briggs & Stratton Operator/Owner
Manual (or Kohler engine's Owner's Manual)
packed with your unit.
Perform the above steps in the opposite order after oil
has finished draining.
• Refill the engine with new motor oil.
Before performing any
• Place the steering wheel in position for straight
ahead travel.
• In front of the axle, measure the distance
horizontally from the inside of the left rim to the
inside of the right rim. Note the distance.
• Behind the axle, measure the distance horizontally
from the inside of the left rim to the inside of the
right rim. Note the distance.
• The measurement taken in front of the axle should
be between 1/16" and 5/16" less than the
measurement taken behind the axle. Adjust if
necessary.
Oil Fill Cap
Oil Drain Hose
Oil Fill Tube
Refer to the Briggs & Stratton Operator/
IMPORTANT:
Owner Manual (or Kohler engine's Owner's Manual)
packed with your unit for information regarding the
quantity and proper weight of motor oil.
Air Cleaner
Service the pre-cleaner, if so equipped, and cartridge/
air cleaner element as instructed in the Briggs &
Stratton Operator/Owner Manual (or Kohler engine's
Owner's Manual) packed with your unit.
Spark Plug(s)
The spark plug(s) should be cleaned and the gap reset
once a season. Spark plug replacement is
recommended at the start of each mowing season.
Refer to the Briggs & Stratton Operator/Owner Manual
(or Kohler engine's Owner's Manual) for correct plug
type and gap specifications.
18
Protective Cap
Oil Drain Valve
Drain Port
Figure 13