General Engine Maintenance; Park Brake Adjustment - HUSTLER 3500 Owner's Manual

Figure 4-29
resistance (50% into the control lever stroke). A reading
of 26.4-28.6 lbs. (12-13 kg) is correct at the full
engagement point (the final 50% of control lever travel).
If the control lever stroke is not correct, or the amount of
resistance on the pull scale at the point of resistance is
incorrect, proceed to step 3.
NOTE: The adjustment bolt on the PTO adjustment
linkage uses left-hand threads.
3. Loosen the locknuts on the PTO adjustment linkage.
Figure 4-30
4. Turn the adjustment rod and recheck the resistance on the
pull scale and the control lever stroke. Repeat this step
until the control lever stroke and the pull resistance are
correct.
5. Tighten the locknuts.
Locknuts
Linkage
Figure 4-30

General engine maintenance

Detailed instructions and recommendations for break-in and
regular maintenance are specified in the Engine Owner's
manual. Please refer to this manual for engine servicing,
lubricating oil levels with the proper SAE rating and viscosity
recommendations, bolt torques, etc. The engine warranty is
backed by the manufacturer. Special attention should be paid to
applicable data which will not be duplicated here.

Park brake adjustment

The park brake must be adjusted when there is less than 0.38
109627_0910
Final reduction gear
case fill plug
4-13
in. (10mm) or more than 0.75 in. (19mm) of free play in the
park brake lever (Figure 4-31), the park brake is dragging, or the
park brake is not working effectively.
1. Park tractor on level ground, lower the mower deck or
front mount attachment to the ground, turn off tractor,
and remove key. Chock the front drive tires to keep
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 0.38 in. (10mm) to 0.75 in.
(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 tractor, and contact your dealer.
.38" - .75"
(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 0.38 in. (10mm) or more than 0.75
in. (19mm) of free travel in the brake pedal (Figure 4-
33 & Figure 4-34), or,
b. When the brakes do not work effectively, or,