GB - 25
5. Remove mower deck drive belt and
discard.
6. Install new mower deck drive belt. See
Figure 28 for belt routing.
7. Tighten nyloc hex nut on top of pulley.
8. Tighten the adjustment nut on the
threaded rod until the proper spring
length is obtained (see Adjusting Deck
Belt Tension above). Tighten the jam
nut.
9. Replace mower deck center belt cover.
IMPORTANT: CHECK AND ADJUST
MOWER DECK DRIVE BELT AFTER 5
HOURS OF OPERATION.
Removing and Installing Mower Deck
Drive Belt (988147, 148)
1. Park unit safely. See Using the Parking
Brake on page 13.
2. Remove mower deck center belt cover.
3. Loosen nyloc hex nut (A) on top of idler
pulley (B) until belt will fit between pulley
and belt guide. The hex nut does not
need to be completely removed.
4. Loosen the jam nut (C) and loosen the
threaded rod until all spring (D) tension
is removed from the belt (E).
5. Remove mower deck drive belt and
discard.
6. Install new mower deck drive belt. See
Figure 29 for belt routing.
7. Tighten nyloc hex nut on top of pulley.
8. Tighten the adjustment nut on the
threaded rod until the proper spring
length is obtained (see Adjusting Deck
Belt Tension above). Tighten the jam
nut.
9. Replace mower deck center belt cover.
IMPORTANT: CHECK AND ADJUST
MOWER DECK DRIVE BELT AFTER 5
HOURS OF OPERATION.
Adjusting Mower Deck Rake
NOTE: The rear-to-front deck rake is pre-set
at the factory to 3/16 in. (4.8 mm). Adjustment
is only required if parts are damaged or
replaced.
1. Park unit safely on a smooth, level
surface. See Using the Parking Brake on
page 13.
2. Remove hair pins from rear HOC rods
(A) and allow rear of deck to rest on anti-
scalp wheels.
3. Loosen the jam nut (B) on the trunnion
(C)
4. Remove hex flange nut, bolt and spacer
retaining HOC rod to deck.
5. Rotate trunnion in or out to achieve
desired height.
6. Install HOC rod on deck. Ensure that
spacer is positioned between deck and
trunnion.
7. Tighten trunnion jam nut.
8. Reset deck height of cut.
9. Measure blade height from front to back
and side to side. Ensure that deck is
level from side to side and that rear-to-
front rake is 3/16 in. (4.8 mm).
Figure 29
C
D
988147, 148
E
B
A
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