Sabre 1338 Gear, Техническое руководство

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TESTS AND ADJUSTMENTS
GEAR POWER TRAIN
2/12/97
5 - 15
TESTS AND ADJUSTMENTS
CLUTCH/BRAKE LINKAGE
&TRACTION DRIVE ADJUSTMENT
Reason:
To ensure clutch/brake pedal linkage and traction drive
system maintains traction in all three lower gears up a
17° slope. Also, to ensure it disengages traction drive
belt, engages brake to slow down or stop tractor within
a specified distance, and holds tractor stationary in
PARK position on a 17° slope or less.
Procedure:
NOTE: This is a four part test and adjustment
procedure:
1. Test drive on 17° slope,
2. Brake spring adjustment,
3. Clutch spring adjustment,
4. Repeat test drive on 17° slope.
TRACTION BELT DRIVE TEST
1. Test drive tractor to see if traction drive system pulls
tractor up a 17° slope in all three lower gears.
?
CAUTION
DO NOT engage clutch/brake pedal too
aggressively or tractor may tip over backwards.
It is recommended that you install the mower
deck before performing the test drive on a 17°
slope.
17°
2. Look for a steady pull in all three lower gears up the
slope.
3. If traction test fails in any or all of the three lower
gears, the belt tension must be adjusted.
BRAKE TEST
1. Drive or push tractor onto a 17° slope and lock
clutch/brake pedal in PARK position.
2. Park brake must hold tractor stationary on slope
and tractor must not roll downward once park
brake is set.
3. Drive tractor on dry pavement in a safe, open, and
level area at fast idle in high gear. Apply a “panic
stop” force (no more than 50 pounds of force) to
brake pedal—tractor must stop within 0.9—1.5 M
(3—5 ft) and both wheels should lock-up, leaving
skid marks on pavement.
4. Repeat Steps 4—6 for reverse.
5. If any test fails, the clutch and brake linkages must
be adjusted or components replaced.
IMPORTANT: Anytime the brake or clutch spring
need to be adjusted, both must be examined to
ensure desired results will be obtained.
NOTE: These adjustment procedures can be
performed with tractor on the floor; however,
you may want to safely raise the tractor for
easier access. If you do, remove the battery to
avoid spilling any electrolyte solution.
17°
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