Snapper 1650 - Governor Sensitivity Adjustment; Power Take-Off Belt Service

SENSITIVITY ADJUSTMENT
If speed drops considerably when a normal load
is applied, governor should be set for greater sen¬
sitivity, If set too sensitive, speed surging will oc¬
cur with changing load. Governor sensitivity is ad¬
justed by repositioning governor spring. No. 5, Fig.
25, in holes provided on governor control bracket,
No. 4, and speed bracket. No. 1, Fig. 26. Increase
tension on spring (and sensitivity) by moving spring
hooks into holes spaced further apart — conversely,
decrease sensitivity by reducing tension on spring.
POWER TAKE-OFF BELTS
(OPTIONAL) —
NOTE: Front belt adjustment and replace¬
ment requires removal of left-hand side panel.
FRONT BELT ADJUSTMENT
Proper tension of drive belts is when length of
spring. No. 4, Fig. 27, is 1 -1 /4". Check measurement
and if necessary adjust nuts, No. 2, until correct
spring length is obtained (1-1/4"). (Also see Fig.
28.)
Fig. 27 — PTO Front Belt Adjustment
— Rear View
1. Sleeve 4. Spring
2. Adjusting Nuts 5. Belts
3. Rod 6. Pulley Bracket
Fig. 28 — PTO Front Belt Replacement
1. Adjusting Nuts 5. Cotter Pin
2. Sleeve 6. Clevis Pin
3. Belts 7. Coupling
4. Lower Pulley 8. Spring
FRONT BELT REPLACEMENT
NOTE: Belts must be replaced as a matched
set.
1. Loosen lower adjusting nut. No. 1, Fig. 28,
lower upper pulley bracket, No. 6, Fig. 27, and remove
belts, No. 5.
2. Remove cotter pin, No. 5, Fig. 28, and clevis
pin, No. 6. Slide coupling, No. 7, rearward and re¬
move belts. No. 3, from lower pulley, No. 4.
3. Install new set of belts around upper and lower
pulleys.
4. Slide coupling forward and secure with clevis
pin and cotter pin.
5. Adjust belt tension.
REAR BELT ADJUSTMENT
To adjust belt tension on rear PTO:
1. Loosen nut, No. 1, Fig. 29.
2. Push idler arm and pulley, No. 3, towards
centerline of Tractor to remove slack from belts.
No. 4.
3. Place control handle, No. 4, Fig. 3, in center
of slot in fender.
— 21 —