Wheeltractionadjustment(All Modelsexcept Pushmodel); Models 34311, 34313 And - Troy-Bilt 34020C Owner's/Operator's Manual

Mulching mowers
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WHEELTRACTIONADJUSTMENT(All modelsexcept PushModel)
WARNING
• Before performing
any
maintenance
procedures,
stop engine, wait for all mov-
ing parts to stop, and allow
engine to cool. Disconnect
spark plug wire and move it
away from
spark plug.
Remove ignition key on elec-
tric start models.
• The wheel drive control on
the mower must function
properly or serious personal
injury and property damage
can result. Do not operatethe
mower if the wheel drive con-
trol does not properlyengage
and disengagethe wheels.
inspection
If the mower does not self-propel
when the wheel drive control is
engaged,
first check for the
following
two conditions:
1. Loss of wheel drive can occur
if moisture
collects
on the un-
derside of the mower or under
the front cover (especially
after
washing
the mower).
Let the
mower dry thoroughly
and then
start the engine.
Raise the front
wheels slightly off the ground,
engage the wheels,
and let the
wheels spin freely for about
two minutes
before lowering
the wheels to the ground.
2. Inspect for grass or debris
build-up
under the front deck
and under the front cover.
Refer to "Cleaning
Under Deck
and Under Mower Cover" in
this Section for the procedure
to follow.
Clean and dry these
areas thoroughly,
reinstall
the
cover, and test for proper wheel
drive.
NOTE:
While cover is
removed,
check that belt is not
broken or excessively
worn.
If performing
the above checks
does not correct the problem,
per-
form the "Initial Wheel Traction
Adjustment"
described
next.
Initial Wheel Traction
Adjustment
This procedure adjusts the tension
on the wheel drive cable.
A. Stop the engine and wait for
all moving
parts to stop.
Disconnect
the spark plug wire
and move it away from the spark
plug. Remove
the ignition
key on
electric start models.
B. Put the Wheel Drive Lever (or
the Wheel Drive Control Bar on
Models 34311, 34313 and 34328)
in the DISENGAGE
position.
C. Using two 1/2-inch wrenches,
loosen the wheel drive cable
adjustment
nuts (A and B) that are
shown in Figure 5-4 (all models
except Models 34311,34313
and
34328) or Figure 5-5 (Models
34311, 34313 and 34328).
D. Unthread
the upper nut (A)
until it reaches the uppermost
threads on the threaded
adjuster
(do not remove
nut).
E. Grasp the bottom end of the
threaded adjuster and pull the cable
assembly
down a short distance.
Thread the lower nut (B) upwards
2
to 3 (maximum)
full turns and
release the cable assembly.
F. Thread the upper nut (A) down
against the cable bracket.
Using
two wrenches,
tighten both nuts
securely
against the bracket.
G. With the engine stopped, move
the mower outdoors. Make sure the
area ahead of the mower is clear of
any obstacles.
Reconnect
the spark
plug wire, start the engine, and test
for proper wheel drive:
(1 .) The wheels should turn when
the Wheel Drive Lever (or
Wheel Drive Control Bar) is
engaged,
but they should NOT
turn if the lever (or control
bar) is not engaged.
On vari-
able speed models, make sure
the wheel drive functions
correctly in all five speeds.
IMPORTANT:
If the wheels turn
when the Wheel Drive Lever (or
Wheel Drive Control Bar) is NOT
engaged,
it is necessary
to un-
thread the lower adjuster
nut (B)
until the condition
is corrected.
Follow
steps A through F of the
"Initial
Wheel Traction
Adjustment"
instructions,
but in-
stead of threading
the lower nut
upward in step E, thread it down-
ward. DO NOT OPERATE
THE
MOWER
UNTIL IT HAS BEEN
PROPERLY
ADJUSTED.
(2.) If the wheels do not turn when
the Wheel Drive Lever (or
Wheel Drive Control Bar) is
engaged, repeat the "Initial
Wheel Traction Adjustment"
procedure
one more time. If
wheel drive is not obtained
after a second attempt, perform
the "Secondary
Wheel Traction
Adjustment"
that follows.
N,
Figure 5-4: Cable adjustment nuts
(on all variable speed models
except Models 34311 and 34328).
A
B
Figure 5-5: Cable adjustment nuts
on Models 34311 and 34328.
31

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