25
Section 4 - ADJUSTMENT & REPAIR
WARNING
DO NOT attempt any adjustments, maintenance or
service with the engine or blade running. STOP
blade. STOP engine. Set brake. Remove key. Remove
spark plug wire from spark plug and secure wire
away from spark plug. Engine and components can
be extremely hot. Avoid burns by allowing engine
and components sufficient time to cool. Wear heavy
leather gloves when handling or working around
cutting blades. Blades are extremely sharp and can
cause severe injury.
4.3.3. SHIFTER ADJUSTMENT
(Continued from previous page)
FIGURE 4.15
WARNING
DO NOT adjust shift linkage with engine running.
The adjustment requires hands to be close to
rotating parts. STOP engine. REMOVE key.
4.3.4.
TRACTION DRIVE BELT ADJUSTMENT
Should a gradual loss of traction be noticed, it may be
necessary to adjust the traction drive belt tension.
Adjust as follows:
1. Move tractor to a firm, level surface.
2. Turn engine "OFF". Remove key.
3. Remove mowing deck.
4. Remove the traction drive belt stationary idler
mounting bolt. See Figure 4.16.
5. Move the stationary idler one hole towards right
side of tractor for more belt tension.
NOTE: Note the orientation of belt guide and make certain
it remains in the same orientation after moving idler.
NOTE: Should less tension be required move stationary
idler towards right side of tractor. See Figure 4.16.
6. Secure stationary idler with mounting bolt.
7. Place spark plug wire onto spark plug. Set park
brake. Start engine.
8. Visually inspect traction drive belt for movement.
When properly adjusted, the traction drive belt should
not have any movement or rotation with the engine
running and park brake engaged.
9. Should movement be present, readjust traction
drive belt to release belt tension as described in
previous instructions.
FIGURE 4.16
4.4 MOWER BLADE SERVICE
4.4.1.
(STANDARD) BLADE WEAR LIMITS
All mower blades should be checked for excessive
wear and damage before each use. See Figure 4.17.
FIGURE 4.17
MORE
TENSION
BELT GUIDE - MAKE CERTAIN
BELT GUIDE ORIENTATION IS
MAINTAINED.
MOUNTING
BRACKET
BELT GUIDE
LESS
TENSION
STATIONARY IDLER
STATIONARY IDLER
MOUNTING BOLT
MOUNTING
BOLT
MORE TENSION
LESS TENSION
STATIONARY IDLER
MOUNTING BRACKET
NEW
BLADE
WEAR LIMIT.
CUTTING EDGE
WORN.
DANGEROUS CONDITION! DO
NOT USE ON MOWER!
NOTCH FORMING
NEUTRAL
ADJUSTMENT
NUT
TURN NUT CLOCKWISE TO
REDUCE FORWARD CREEP
