Troy-Bilt Horse Tiller Technical Manual - Page 8

Wheels, and/or, Tines, Wheel, Shaft, Moves, Noise, Tiller, Bearing

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PTO HORSE MODEL TECHNICAL MANUAL Page 2-4 4/90 SECTION 2: Transmission Troubleshooting Wheels and/or Tines Do Not Turn Symptom Wheels turn but the tines do not. Remedy • Make sure the Tines/PTO Clutch Lever is engaged. • Adjust the Tines/PTO Clutch Lever. • Make sure the power unit or tiller attachment's dog clutch key is in place and that each key is fully seated. Both dog clutches must be able to slide lengthwise on their shafts. • Inspect the eccentric lever on the Tines/PTO Clutch; it may be broken. • Inspect the tiller attachment drive shaft worm. It may be worn and unable to mesh with the bronze tiller shaft worm gear. • Inspect the bronze tiller drive shaft worm gear. It may be worn and unable to mesh with the tiller drive shaft worm. • Inspect the keys that hold the tine holders to the tine shaft; they may be sheared or missing. Or, the holders may be worn. See the Owner/Operator Manual for instructions. • If the transmission has been in service for a long time, the key that holds the bronze worm gear to the tiller shaft may be broken. If the transmission is new or rebuilt; the key may be missing. Wheels and tines turn on top of the ground but stop or hesitate in the soil. • Check the drive belt for proper adjustment. See the Owner/Operator Manual for instructions. • Check if the mounting bolt for the transmission drive pulley is missing. This would allow the key inside the pulley to fall out. • Follow the remedies for "Wheel and tines won't turn though Wheels/Tines/PTO Lever seems to work properly." See Page 2-3. • Follow the remedies for "Tines turn but the wheels do not turn or turn only in one speed." See Page 2-3. Wheel Shaft Moves To One Side Symptom The wheels and wheel shaft move to one side. Remedy • Check for play in the wheel shaft. If there is more than .015" play, one or both snap rings are out of the groove(s). Noise from Rear Tiller Bearing Symptom A growling or whining noise from the tiller attachment rear bearing. Remedy • Inspect the bearing and bearing cup for wear or damage. • Inspect the tiller shaft bronze worm gear for wear or damage.

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PTO
HORSE
MODEL
TECHNICAL
MANUAL
Page
2-4
4/90
SECTION
2:
Transmission
Troubleshooting
Wheels
and/or
Tines
Do
Not
Turn
Symptom
Remedy
Wheels
turn
but
the
tines
do
not.
•
Make
sure
the
Tines/PTO
Clutch
Lever
is
engaged.
•
Adjust
the
Tines/PTO
Clutch
Lever.
•
Make
sure
the
power
unit
or
tiller
attachment's
dog
clutch
key
is
in
place
and
that
each
key
is
fully
seated.
Both
dog
clutches
must
be
able
to
slide
lengthwise
on
their
shafts.
•
Inspect
the
eccentric
lever
on
the
Tines/PTO
Clutch;
it
may
be
broken.
•
Inspect
the
tiller
attachment
drive
shaft
worm.
It
may
be
worn
and
unable
to
mesh
with
the
bronze
tiller
shaft
worm
gear.
•
Inspect
the
bronze
tiller
drive
shaft
worm
gear.
It
may
be
worn
and
unable
to
mesh
with
the
tiller
drive
shaft
worm.
•
Inspect
the
keys
that
hold
the
tine
holders
to
the
tine
shaft;
they
may
be
sheared
or
missing.
Or,
the
holders
may
be
worn.
See
the
Owner/Operator
Manual
for
instructions.
•
If
the
transmission
has
been
in
service
for
a
long
time,
the
key
that
holds
the
bronze
worm
gear
to
the
tiller
shaft
may
be
broken.
If
the
transmission
is
new
or
rebuilt;
the
key
may
be
missing.
Wheels
and
tines
turn
on
top
of
the
ground
but
stop
or
hesitate
in
the
soil.
•
Check
the
drive
belt
for
proper
adjustment.
See
the
Owner/Operator
Manual
for
instructions.
•
Check
if
the
mounting
bolt
for
the
transmission
drive
pulley
is
missing.
This
would
allow
the
key
inside
the
pulley
to
fall
out.
•
Follow
the
remedies
for
"Wheel
and
tines
won't
turn
though
Wheels/Tines/PTO
Lever
seems
to
work
properly."
See
Page
2-3.
•
Follow
the
remedies
for
"Tines
turn
but
the
wheels
do
not
turn
or
turn
only
in
one
speed."
See
Page
2-3.
Wheel
Shaft
Moves
To
One
Side
Symptom
Remedy
The
wheels
and
wheel
shaft
move
to
one
side.
•
Check
for
play
in
the
wheel
shaft.
If
there
is
more
than
.015"
play,
one
or
both
snap
rings
are
out
of
the
groove(s).
Noise
from
Rear
Tiller
Bearing
Symptom
Remedy
A
growling
or
whining
noise
from
the
tiller
attachment
rear
bearing.
•
•
Inspect
the
bearing
and
bearing
cup
for
wear
or
damage.
Inspect
the
tiller
shaft
bronze
worm
gear
for
wear
or
damage.