Mower Drive Belt Adjustment - Snapper LT140H38ABV Safety Instructions & Operator's Manual

SERVICE
MOWER SERVICE & ADJUSTMENTS
Keep the topside of the mower free of grass cuttings.
Buildup of clippings could cause belt problems and also
might present potential fire hazard, especially when dry,
If uneven cutting is noted, check the tire pressure first
as this is the most common cause. If tire pressure is
correct and uneven cutting persists, move the tractor to a
flat, level surface, such as a garage floor, and check the
deck level. (See "LEVELING MOWER", Pages 17 & 18).
To prolong the life and efficiency of your mower, keep the
underside of deck clean and free of accumulated grass
clippings by washing it down with a hose and/or scraping
with a wire brush and scraper. Make sure this is done at
the end of the cutting season before placing the Mower
in storage.
MOWER DRIVE BELT ADJUSTMENT
(SINGLE BLADE DECK)
Normally, within the first few hours of operation, the
MOWER DRIVE BELT will seat into the pulleys and be-
come slack. To regain correct Belt tension, follow Steps
1 thru 10.
1. Remove Ignition Key.
2. Disconnect Spark Plug Wire.
3. Lower MOWER DECK to lowest position.
4. Push BLADE CONTROL LEVER downward to
"OFF" position.
5. Set the rear of the deck 1/4" lower than the front
(a nose-low condition will cause belt problems).
Refer to Page 17, "LEVELING MOWER" to adjust
deck.
6. Check the lowest height of cut. It should be no
less than 1 1/4" (measuring from the blade tip to
a level surface).
7, Remove nut and bolt from Linkage Rod. Locate
Rod one hole further back on Link Bracket and
reinstall nut and bolt. See Figure 21.
MOWER
DRIVE
MOWER BLADE
PULLEY
8. Pull BLADE CONTROL LEVER up to "ON"
position, then check the spring extension of the
BLADE CABLE. It should extend a minimum
of 3/8" when the drive belt is tensioned correctly.
i Refer to Figure 21.
9. If spring does not extend the minimum distance
(3/8") or, the belt is still too slack, move nut and
bolt to another hole until spring extension and
belt tension is correct.
10, Adjust BLADE BRAKE AFTER adjusting mower
drive belt.
MOWER DRIVE BELT ADJUSTMENT
(TWIN BLADE DECK)
Normally, within the first few hours of operation, the
MOWER DRIVE BELT will seat into the pulleys and
become slack. To regain correct Belt tension, follow
Steps 1 thru 5.
1. Lower MOWER DECK to lowest position.
2. Push BLADE CONTROL LEVER downward to
"OFF" position.
3. Remove BLADE CABLE SPRING from hole in
BRAKE ARM. Reattach Spring in next,hole
forward. See Figure 22.
IBm, DE ,---,OL,.
CABLE _ / FF._---_ PULLEY
FIGURE 22
4. Pull BLADE CONTROL LEVER up to "ON"
position, then check Belt tension.
5. If belt is still too slack, loosen the nut and move
the fixed idler towards the rear until tension is
correct. See Figure 23.
FWD
LOOSEN NUT AND MOVE
IDLER TO THE REAR TO
TENSION BELT AS
ROD _.
REMOVE NUT
AND BOLT. MOVE
LINKAGE ROD
ONE HOLE AT A TIME
UNTIL DRIVE BELT IS
TIGHT. REINSTALL
NUT AND BOLT.
FIGURE 21
10
FIGURE 23