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PART
6-1-MANUAL SHIFT TRANSMISSION
6-5
TROUBLE SYMPTOMS
GEAR JUMPOUT
(Continued)
LOCKED IN GEAR
When a complaint of momentary
blackout is encountered in transmis-
sions with non-synchronized low-
gear, determine whether or not a
normal "blackout" condition does
exist, the customer
should
be infor-
med that the transmission gears
cannot be pulled into mesh because
of gear tooth to
tooth
abutment
which can be eliminated by releasing
and depressing the clutch pedal again
(thus spinning
the clutch disc). This
will re-index the drive and driven
gear teeth and allow the gears to
mesh.
POSSIBLE CAUSES
deteriorated to a point where proper
crossover engagement will not occur
due to excessive radial movement in
the column linkage (lost motion).
TRANSMISSION
1. Transmission misaligned or
loose.
2. Bent or worn shift fork, lever
and/
or camshaft.
3. Worn input shaft pilot bearing.
4. End play in input shaft (bearing
retainer loose or broken, loose or
worn bearings on input and output
shafts).
5. Interlock springs broken.
6. Detent notches worn.
7. Worn clutch teeth on the re-
spective gear
and/
or worn clutch
teeth on synchronizer sleeve.
8. Failure of the operator to fully
engage the gears on every
shift
before
engaging the clutch and applying
engine power.
SHIFT LINKAGE
1. Loose nuts at
transmtsston
levers and
shift
rods. If the nuts are
loose, check for bell-mouthing of
slots.
STEERING COLUMN
1. Incorrect adjustment of shift
linkage. Make certain that when
slowly shifting
out of low gear, the
low gear shift lever at the transmis-
sion
is completely out of low gear
detent prior to the column shift lever
dropping through neutral crossover.
If the transmission shift lever is not
completely out of low gear detent the
shift
interlock in the transmission
will prevent engagement of second
gear and a lockup condition occurs.
2. Improper column alignment,
looseness, binding and worn surfaces.
3. Worn shift key or broken weld
securing shift key to top or bottom
of shift tube.
4. Keyway m die cast selector
lever hub pounded out.
5. Loose screws securing die cast-
ing to bottom of tube. Excessive
radial movement in the column
linkage. (If the Yehicle has high
mileage or is subjected to hard use
even though the crossover has been
properly set, the column may have
deteriorated to a point where proper
CORRECTION
1. Align to specification. Torque
transmission - to - flywheel housing
bolts and flywheel housing-to-engine
bolts to specifications.
2-3-5-6-7. Replace worn or de-
fective parts.
4. Torque retainer bolts to speci-
fication. Replace worn or defective
parts.
8. Replace worn parts and educate
the operator.
1. Adjust levers and rods to proper
crossover. Torque nuts to
specifica-
tion. Replace bell-mouthed rods and
levers. Replace bent rods or levers.
1-2. Adjust column properly and
replace defective parts.
3-4. Replace defective parts.
5. Replace defective parts. Tighten
screws securely. Clean and lubricate
with Molybdenum Disulphide grease.
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