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915141, 143:
Install (Figure 10)
1. Slide mower deck under unit.
NOTE: Perform step 2 and 3 for the right and
left side of unit.
2. Connect drag link to front deck bracket.
3. Connect front and rear trunnions to lift
arms.
4. Install PTO belt on the engine drive
pulley (see REPLACING PTO BELT on
page 25).
5. Level and adjust pitch of mower deck
(see LEVELLING AND ADJUSTING
PITCH OF MOWER DECK on page 20).
5 4
1. Rear Trunnion
2. PTO Belt
3. Mower Deck
3
4.
5.
6.
Figure 10
2
Drag Link
Front Trunnion
Lift Arms
LEVELLING AND ADJUSTING
PITCH OF MOWER DECK
NOTE: Adjust on a level surface, with the
tires inflated to the correct air pressure (see
SPECIFICATIONS on page 30).
Three measurements are required to level
and adjust the pitch of the mower deck.
1. The distance from the mower blades to
the ground.
2. The forward pitch of the mower blades.
3. The pitch of the mower blades from
side-to-side.
The Distance From The Mower
Blades To The Ground (Figure 11):
915131: In the lowest cutting position
should be 1.5 in. + 1/4 in. (3.8 cm +
0.64 cm).
915141, 143: In the lowest cutting
position should be 1 in. + 1/4 in.
(2.54 cm + 0.64 cm).
915131: In the highest cutting position
should be 4.5 in. + 1/4 in. (11.4 cm +
0.64 cm).
915141, 143: In the highest cutting
position should be 4 in. + 1/4 in.
(10.16 cm + 0.64 cm).
Lowest Cutting Position
3 1 2
915131:
1.50 in. _+1/4 in. (3.8 cm _+0.64 cm)
915141, 143:
1 in. +_1/4 in. (2.54 cm _+0.64 cm)
Highest Cutting Position
3 1 2
\ / /
f{ !! "
915131:
4.50 in. + 1/4 in. (11.4 cm +0.64 cm)
915141, 143:
4 in. _+1/4 in. (10.16 cm _+0.64 cm)
1. Mower Deck 3. Ground
2. Mower Blade
Figure 11
GB - 20
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