Drive Belt Adjustment; Transport (Free-Wheel) Valve Adjustment-K55 - Sabre 1338 Gear Technical Manual

TESTS AND ADJUSTMENTS

DRIVE BELT ADJUSTMENT

A
E
C
1. Lock park brake.
?
Tensioning spring (B) is under high tension.
Wear gloves and use a firm grip when stretching
spring.
2. Carefully pull larger tensioning idler (C) rearward
until belt (A) can be removed from adjustable idler
(E), then slowly release tensioning idler.
3. Loosen and move adjustable idler (E) rearward in
slots (D) in increments of 10 mm (0.39 in.).
4. Tighten adjustable idler (E) and carefully install belt
in larger tensioning idler (C).
5. Repeat procedure until belt tension is sufficient to
overcome any slippage.
6. If adjustable idler is adjusted to rear end of slot (D)
and belt tension is not sufficient to overcome any
slippage, replace belt.
NOTE: If a new belt is required, adjustable idler (E)
should be reset at front end of slot (D).
2/12/97
www.servicemanualall.com
B
C
D
K55
A
D
E
K55
CAUTION
HYDROSTATIC POWER TRAIN
TRANSPORT (FREE-WHEEL)
VALVE ADJUSTMENT—K55
1. Replace lever assembly (A) components as needed.
B
E
D
2. Slowly engage lever (A) into over-center position
(B).
3. Watch closely that actuating pin (E) moves inward
all-the-way and, as lever snaps into over-center
position, does not move outward at all.
4. If actuating pin (E) does move outward, loosen
mounting nuts (C).
5. Push and hold edge of mounting bracket (D) inward
until actuating pin (E) bottoms out (internally). Hold
edge of bracket (D) stationary while axle mounting
nuts (C) are tightened to 15 N•m (132 lb-in.)
Test Transport Valve Operation:
1. With engine off and shift lever in any position, put
transport valve lever (A) in over-center position (B)
and push tractor forward at least 3.05 M (10 ft)—
tractor should push easily the entire distance.
2. Push tractor backward the same distance—tractor
should push easily the entire distance.
3. If tractor pushes hard, repeat adjustment procedure
above—be sure actuating pin (E) does not move
outward once over-center position (B) is achieved
and mounting nuts (C) are tightened.
4. Repeat test Steps 1 and 2.
5. If tractor still pushes hard, internal component are
not assembled properly or are damaged. Remove
transaxle and make necessary inspection and
repairs (see Repair Group later in this section).
A
C
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