Adjustments - Snapper 1690393 Operator's Manual

Adjustments
£ WARNING
To avoid serious injury, perform adjustment only
with tractor engine stopped. Remove the ignition
key to prevent accidental starting.
BELT TENSION
1. Engage the tiller clutch.
2. Press downward with your thumb on the exposed
part of the belt (item A, figure 7). Thumb pressure
should deflect the belt downward about 1 /4 inch
(6 mm). If not, proceed with the following steps.
A. Belt D. Clevis
B. Clutch Link E. Pin
C. Jam Nut F. Spring Clip
3. Disengage the tiller clutch.
4. Loosen the jam nut (item C).
5. Remove the spring clip (item F) and pin (item E).
6. Turn the clevis (item D) in or out of clutch link
(item B). Increasing exposed thread of clevis
increases belt tension; decreasing exposed thread
decreases belt tension.
7. Reattach clevis (item D) with pin (item E) and
spring clip (item F).
8. Engage the clutch and recheck the measurement
(step 2). Readjust if necessary then tighten jam nut
(item C) firmly against the clutch link (item B).
9. Operate the tiller for a short period then recheck
the adjustment.
CHAIN ADJUSTMENT
I. Locate the screw and nut in the slotted holes on
either side of the chain drive housing underneath
the cover.
2. Place a wrench on the nut and another wrench on
the screw head. Loosen, but do not remove.
3. Push the wrenches toward the rear while tighten¬
ing the screw and nut. This will remove slack from
the chain. Do not overtighten.
LIFT ROD ADJUSTMENT - Tilling Depth and
Ground Clearance
Moving the jam nuts (B & C, figure 8) affects the tilling
depth and ground clearance. Moving the jam nuts toward
the rear increases the tilling depth and decreases ground
clearance. Moving the jam nuts toward the front de¬
creases the tilling depth and increases the ground clear¬
ance. Initially, position the two nuts so that the lift arm
(E) nearly touches the back of the tractor when the tiller is
fully raised. If operation shows that greater tilling depth
is needed, move the nuts toward the rear. To move the
nuts, proceed as follows.
1. Use tractor lift lever to lower tiller to ground.
2. Hold forward jam nut (C) while loosening rear
jam nut (B).
3. Move nuts to desired position on lift rod.
4. Hold forward jam nut (C) while tightening rear
jam nut (B). The two nuts must be jammed
tightely together.
5. Use tractor lift lever to fully raise tiller. Check to
^_be sure that there is reasonable clearance between
the ground and the tines.
A. Rod Guide C. Jam Nut E. Lift Arm
B. Jam Nut D. Lift Arm
7