Cutting Height Adjustment - Snapper SW20 Series Operator's Manual

Cutting Height Adjustment

The cutting height can be adjusted within two different
ranges. The lower cutting range is adjustable between
1-1/2" (3,8 cm) and 2-3/4" (6,9 cm). The upper cutting
range is adjustable between 2-3/4" (6,9 cm) and 4-1/2"
(11,5 cm).
Before adjusting the cutting height, you must first determine
the average cutting height. Depending on the range you
plan to use, it may be necessary to adjust which pulley the
deck drive belt runs in.
To Adjust the Cutting Range:
1. Remove the mower deck guard (A, Figure 6) to gain
access to the mower deck drive belt.
WARNING
Spring loaded components can kick
back causing injury.
Use extreme caution when rotating the idler arm
with the breaker bar, due to the increased tension in
the spring as the idler arm is being rotated. Injury
may result in the breaker bar is prematurely release
while the spring is under tension.
2. Using a 1/2" breaker bar (A, Figure 7), place the square
end in the square hole located on the end of the idler
arm (B). Carefully rotate the breaker bar CLOCKWISE,
which will relieve the tension on the belt exerted from
the idler arm.
3. Slide the drive belt over the edge of the Stationary idler
pulley (C). Carefully release the tension on the breaker
bar until the idler arm comes to a stop.
4. See Figure 8. If you are adjusting the cutting height
range between 1-1/2" (3,8 cm) and 2-3/4" (6,9 cm)
position the belt in the lower pulley on PTO clutch. If
you are adjusting the cutting height range between
2-3/4" (6,9 cm) and 4.5" (11,5 cm) position the belt in
the upper pulley on the PTO clutch.
5. Carefully rotate the breaker bar CLOCKWISE and install
the drive belt on the stationary idler pulley. Carefully
release the tension on the breaker bar. The belt should
be routed exactly as shown in figure 9.
6. Reinstall the mower deck guard.
Figure 6. Remove the Cutter Deck Guard
A. Cutter Deck Guard
C
A
Figure 7. Remove the Cutter Deck Belt
A. Breaker Bar
B. Idler Arm
C. Stationary Idler Pulley
A
B
Figure 8. Belt Positioning for Cutting Range
A. Positioned for Lower Cutting Range
B. Positioned for Upper Cutting Range
Operation
A
B
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