Diagnosis - Sabre 1338 Gear Technical Manual

DIAGNOSIS

DIAGNOSIS
Test Conditions:
• Mower on level surface
• Mower deck removed
• Engine OFF
Test/Check Point
1. Inspect traction drive belt.
2. Inspect engine and transaxle
sheaves, idlers and idler
bearings, and belt guides.
3. Test drive mower up 17° slope
in first, second, third and
reverse gears.
4. Shift linkage adjustment.
5. Inspect exterior of transaxle
housing.
6. Perform brake test (See tests
and adjustments)
7. Inspect brake pads & disk
8. Inspect brake linkage
9. Inspect rear tires
10. Inspect rear wheels
11. Remove rear wheels and
inspect axles.
Test Conditions:
• Mower on level surface
• Front wheels blocked
• Park brake OFF
1. Depress clutch pedal and shift
into all 5 speeds and reverse
2. Shift transaxle through gears,
using clutch to shift
2/12/97
www.servicemanualall.com
• Front wheels blocked
• Rear wheels raised off ground with axle housings on jack stands.
• Park brake ON
Normal
Belt in good condition, not glazed, split,
unraveled, or stretched.
Minimum width 11 mm (0.43 in.).
Sheaves, idlers and guides in good
condition.
Guides installed, properly adjusted and
tight.
Mower pulls up slope with no clutch
slippage (traction drive belt adjusted
properly).
Linkage shifts smoothly, obtains all
gears & neutral (See shift linkage
adjustment section for test)
No cracks, leaks, or loose hardware.
Mower holds on 17° slope, and stops in
0.9-1.5 M (3-5 ft) or less.
Pads and disks not worn beyond
specifications. Disc not rubbing on
transaxle case.
Brake spring adjustment is 7.5-8 mm
(0.30-0.32 in.)(See tests & adjustments
section)
Tire pressures are equal
Tire outside diameters are equal
Wheels not bent or out of round.
Keys, keyways and E-rings in good
shape and seated correctly.
• Rear wheels raised off ground with axle housings on jack stands.
• Operator on seat, engine running at operating temperature.
Rear wheels remain still with no axle
rotation (Clutch pedal down)
Shifts smoothly, and obtains all forward
and reverse gears (both rear wheels are
being driven)
GEAR POWER TRAIN
If Not Normal
Replace traction drive belt
See Repair section for removal/
installation instructions
Replace any loose, worn, or
damaged components.
(See Repair section for removal/
installation instructions)
Adjust traction drive belt rear idler
(See clutch actuating
adjustment)
Adjust linkage. (See shift linkage
adjustment section for procedure)
Repair or replace as necessary. If
case seal is leaking, reseal case
Go to step 7 and 8
Replace pad & disk as needed. If
disk is rubbing case, rebuild
transaxle
Adjust brakes (See tests
adjustments section)
Adjust air pressure.
Match tires for same size.
Replace wheels.
Repair or replace as needed.
Adjust clutch actuating spring.
Adjust shift linkage
If still no drive, check transaxle
drive sheave shaft key, or remove
transaxle for internal inspection.
spring
&
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