HUSTLER 3700 Operator's Manual page 42

machine from rolling.
2. Check the park brake lever free travel distance: With the
park brake lever all the way down (Off), pull the lever up
until you notice resistance from brake engagement -
measure this distance as shown in Figure 4-31. This free
play distance should be 10mm to 19mm.
3. To adjust the park brake free play, raise the seat platform
and secure it in the up position.
IMPORTANT: Make sure the seat platform is secured
properly in the up position to prevent it from falling back
down on you as you are working.
4. Loosen the jam nuts on each of the park brake cable in-
line cable adjuster barrels as shown in Figure 4-32.
Back the jam nuts off several turns.
5. Turn the in-line cable adjuster barrel (Figure 4-32) on
each cable accordingly to properly adjust the cable.
Lengthening the in-line cable adjuster assembly
(exposing more threads) will tighten the cable and reduce
the free play. Shortening the in-line cable adjuster
assembly length (less exposed threads) will loosen the
cable and create more free play. Both cables should be
adjusted so they are providing equal free play when the
brake is off, and equal brake force on each brake when
the park brake is applied.
6. Re-check the free play (step 2). Re-adjust as necessary.
7. Tighten the jam nuts.
Once the park brake is adjusted properly, check to make sure
it is working effectively and does not drag. If any problems
persist, do NOT operate the power unit, and contact your dealer.
(10 mm - 19 mm
Figure 4-31
Inspecting and adjusting the service brake
The service brake must be adjusted when:
a. There is less than 10mm or more than 19mm of free
travel in the brake pedal (Figure 4-33 & Figure 4-34),
or,
b. When the brakes do not work effectively, or,
c. When the brakes are dragging.
1. Park power unit on level ground, lower the mower deck
or attachment to the ground, turn off power unit and
remove key. Chock the front drive tires to keep machine
from rolling. Make sure the park brake is in the OFF
position.
2. Check the free travel of the brake pedal (Figure 4-33 &
REV F
Park brake
linkage
Figure 4-34). This is determined by the distance the
brake pedal travels from its rear most position pushing
forward on the pedal until you feel the brakes beginning
to engage. Measure this distance - if it is more than
19mm or less than 10mm, the brakes must be adjusted.
3. The brake linkage rods are located underneath the floor
pan. (Figure 4-35) Loosen the jam nuts located behind
the front clevis on each of the brake linkage rod
assemblies. Back the jam nuts off. Figure 4-36
4. Adjust the brake linkage rods accordingly until the
proper brake pedal free play is achieved. Make sure the
right and left brake linkage rod lengths are adjusted
equally.
5. Re-check the pedal free play (step 2).
necessary.
6. Tighten the jam nuts against the clevis base.
Once the brakes have been properly adjusted, check to make
sure they are working correctly on the power unit in a safe area
away from any obstructions or bystanders.
braking force on both front drive wheels is equal. Re-adjust if
necessary.
If you find that the brakes are dragging, check the park brake
adjustment. If this does not fix the problem and your brakes
continue to work incorrectly, do not operate the power unit
and contact your Hustler Dealer.
4-14
Jam nut
Cable adjuster
barrels
Jam nut
Figure 4-32
Re-adjust as
Make sure the
Bottom edge of
brake pedal
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