HUSTLER Super Z HD, Общее руководство по обслуживанию, Страница: 17 / 50

117592 4-5 REV C
a. Loosen the brake linkage jam nuts. (Figure 4-14)
Rotate the tire and at the same time rotate the
turnbuckle to shorten the length of the brake linkage
to increase the brake pressure. When you feel the
brake begin to engage, stop adjusting the turnbuckle.
Re-tighten the jam nuts on the turnbuckle.
b. Place the control lever in the park brake slot. The tire
should not rotate when the control lever is in the park
brake position. Figure 4-13
c. Place the control lever in the neutral position. The tire
should rotate freely.
9. Close the hydraulic pump’s bypass valve. Figure 4-12
10. Repeat steps 4 through 9 for the other side.
11. Check to make sure all tools or obstructions are removed
from under the mower.
12. Raise the rear of the mower and remove the jack stands.
Lower the mower.
13. Reconnect the negative battery cable.
14. Lower and secure the seat platform.
Belts
Inspect belts frequently for wear and serviceability. Replace a
belt that shows signs of severe cuts, tears, separation, weather
checking and cracking, or burns caused by slipping. Slight
raveling of belt covering does not indicate failure; trim ravelings
with a sharp knife.
Inspect the belt pulley grooves and flanges for wear. A new
belt, or one in good condition, should never run against the
bottom of the groove. Replace the pulley when this is the case,
otherwise, the belt will lose power and slip excessively.
Never pry a belt to get it on a pulley as this will cut or damage
the fibers of the belt covering.
Keep oil and grease away from belts, and never use belt
dressings. Any of these will destroy the belt composition in a
very short time.
Hydraulic Pump Belt Adjustment
The transmission drive belt tension remains constant by
means of a tension idler and spring. The spring tension should
be such that the belt does not slip under normal operating load
conditions, assuming the belt is not excessively worn or
damaged. As the belt stretches and wears in, adjustment may
become necessary.
The proper belt tension is achieved when the tension spring is
stretched to a dimension of 8.75” – 9.25” (222 – 235mm) when
measured from the outside of the hook to the outside of the other
hook. Figure 4-15
To increase belt tension, loosen the jam nut on the eye bolt.
Then, tighten the nut on the eyebolt until the 8.75” – 9.25” (222
– 235mm) dimension is attained. Lock the eyebolt in place by
tightening the jam nut. Figure 4-15
IMPORTANT: Do not over tension the spring to compensate
for a badly worn belt or pulley. Figure 4-15
Inspect the belt every 100 hours and replace as needed.
Replace the belt every 400 hours or every two (2) years
Figure 4-12
Figure 4-13
Bypass valve
Control lever
Park
brake
slot
Outside
edge
1/8”
(3.175mm)
Figure 4-14
Jam nuts