Yard-Man 53AA1A3G401 Manuel D’Utilisation

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SECTION 7:   MAINTAINING MOWER DECK
Checking The Level Of The Mower Deck
Side to Side
Position the Z-Series on a hard and level surface 
and place the PTO switch in the OFF position.
Engage the parking brake and turn the ignition 
switch to the OFF position and remove key.
Remove spark plug wire(s) from the spark plug(s).
Raise the lift handle to the highest setting (7).
Position the mower blades so they run 
perpendicular to the Z-Series. See Figure 18.
Figure 18
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 within 1/16”. If they 
are not, proceed to the next step.
Remove the shoulder screw that holds the lift link to 
the hanger bracket on the side to be adjusted.
See Figure 19.
Turn the adjustable link the appropriate distance up 
or down. Every 1/2 turn equals 1/32”.
Figure 19
Front To Rear
Position the Z-Series on a hard level surface and 
place the PTO switch in the OFF position.
Engage the parking brake and turn the ignition 
switch to the OFF position and remove the key.
Remove spark plug wire(s) from the spark plug(s).
Raise the lift handle to the highest setting (7).
Position the mower blades so the ends of each 
blade point to the front and to the rear of the Z-
Series. See Figure 20.
Figure 20
Measure the distance from the front of the blade tip 
to the ground and the rear of the blade tip to the 
ground. The front edge of each blade should be 
lower than its back edge by 1/8” to 1/4”. Determine 
the appropriate distance necessary for proper 
adjustment and proceed, if necessary, to the next 
step.
Lower the deck to the lowest position.
Loosen the rear jam nuts on the front lift rods and 
turn the front lock nuts clockwise to raise the front of 
the mower deck or counterclockwise to lower the 
front of the mower deck. See Figure 21.
Raise the deck to the highest position. Recheck the 
blade measurements and repeat steps, if 
necessary.
Tighten the rear jam nuts after adjustments of the 
front lift rods are completed.
Figure 21
Measurement
Blade
Adjustable
Link
 
Lift Link
Shoulder
Screw
Support
Pin
Hanger
Bracket
Rear
Edge
 
Front
Edge
Front Lift
Rods
Lock Nut
Jam Nut