Troubleshooting – John Deere stx38 User Manual
Page 192
5 - 28
3/21/97
TROUBLESHOOTING
POWER TRAIN
TROUBLESHOOTING
Problem or
Symptom
Belt jumping off or
slapping
Lack of drive in one
or both directions
Loses power under
load, belt slips, or
erratic drive
Jerky or aggressive
engagement
Cannot get all
forward gears
Cannot get reverse
gear
Jumps out of gear or
must hold into gear
Shifts hard
Noisy operation
Leaking grease
Brakes will not stop
tractor
Park brake will not
hold
Check or
Solution
Belt sheaves, idlers, and
guides loose, out of
adjustment, worn, or
damaged—tighten, replace,
or adjust properly
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Belt worn, frayed, glazed, or
stretched—replace belt
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Clutch/brake pedal linkage
out of adjustment—adjust
properly
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Clutch/brake components
worn, bent, or broken—
replace and adjust properly
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Shift lever and linkage bent,
worn, out of adjustment, or
broken—replace or adjust
properly
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Input sheave, input shaft,
and axle keys or keyways
worn or damaged—replace
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Internal components worn,
stripped, or broken—replace
necessary components
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Transaxle case halves worn
or broken—replace halves
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Incorrect type or volume of
lubricant used—replace with
correct type and volume
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Intermediate shifter/brake
shaft or axle seals worn or
damaged—replace seals
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Transaxle cap screws loose
or case holes stripped—
tighten or replace case half.
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Poor application of transaxle
case halves sealant—
replace sealant properly
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Incorrect type sealant—
replace with proper sealant
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