Yard-Man 604 Operator's Manual page 15

• With the tractor parked on a firm, level
surface, place the lift lever in the top notch
(highest position) and rotate the blade nearest
the discharge chute so that it is parallel with
the tractor.
• Measure the distance from the front of the
blade tip to the ground and the rear of the
blade tip to the ground. The first measurement
taken should be between 1/4" and 3/8" less
than the second measurement. Determine the
approximate distance necessary for proper
Side to Side
If the cutting deck appears to be mowing unevenly, a side to side adjustment can be performed. Adjust if
necessary as follows:
WARNING:
tractor's parking brake before making any adjustments.
• With the tractor parked on a firm, level surface, place the lift lever in the top notch (highest position) and
rotate the both blades so that they are perpendicular with the tractor.
• Measure the distance from the outside of the left blade tip to the ground and the distance from the
outside of the right blade tip to the ground. Both measurements taken should be equal. If they're not,
proceed to the next step.
• Loosen, but do NOT remove, the hex cap screw on the left deck hanger bracket. See Figure 8B.
• Balance the deck so that both blade tip measurements taken earlier are equal.
• Retighten the hex cap screw on the left deck hanger bracket when proper adjustment is achieved.
A
Deck
Stabilizer
Bracket
Deck
Front to Rear
CARBURETOR ADJUSTMENT
WARNING:
made to the engine while the engine is
running (e.g. carburetor), disengage all
clutches and blades. Keep clear of all
moving parts.
surfaces and muffler.
Turn the tractor's engine off, remove the key from the ignition switch and apply the
Lock
Nuts
Jam
Nuts
If any adjustments
Be careful of heated
adjustment and proceed, if necessary, to the
next step.
• Loosen the two jam nuts on the rear side of
the deck stabilizer bracket. See Figure 8A.
• Locate the two lock nuts on the opposite side
of the stabilizer bracket. See Figure 8A.
Tighten the lock nuts to raise the front of the
deck; loosen the lock nuts to lower the front of
the deck.
• Retighten the two jam nuts loosened earlier
when proper adjustment is achieved.
B
Side to Side
Figure 8
NOTE:
A dirty air cleaner will cause an engine to
run rough. Be certain it is clean and properly
are
attached before adjusting carburetor. Refer to
separate engine manual packed with your unit for
information regarding air cleaner maintenance.
Refer to separate engine manual packed with your
unit for carburetor adjustment information or see an
authorized engine service dealer.
15
Hex Cap Screw
Deck Hanger Bracket