Troy-Bilt 8 HP - Manual (Page 49)

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SiaWICE
Adjusting reverse drive
1. Place the Wheels/Tines/PTO
Drive Lever in “FORWARD”.
2. On the left side of the tiller,
place a V
2
-inch wrench on the
plunger retaining bolt and another
V
2
-inch wrench on the jam nut next
to it (Photo 6-36). While holding
the bolt steady, loosen the jam nut
(counterclockwise) until it touches
the head of the bolt.
6-36: Hold bolt steady while loosen­
ing or tightening jam nut.
3. Turn the bolt inward until it tight­
ens against the plunger inside the
spring. The bolt must be tight
enough to prevent the plunger
from turning, but be careful not to
overtighten and break the bolt.
4. Place a %-inch wrench on the
head of the reverse adjustment bolt
and another 9/16-inch wrench on
the jam nut below it (Photo 6-37).
Hold the bolt steady while loosen­
ing the jam nut three or four turns.
5. Place the Wheels/Tines/PTO
Drive Lever in “NEUTRAL”. The
switch body on the bottom of the
engine mount tab should be rest­
ing squarely on top of the reverse
adjustment bolt (see Photo 6-33),
and the reverse disc should be at
least 3/16-inch away from the
transmission drive puiley. If the re­
verse disc is closer than 3/16-inch,
laise the reverse adjustment bolt
by turning it in a counterclockwise
direction.
'V
ADJUSTMENT
BOLT ^
6-37: Loosen jam nut before raising
or lowering reverse adjustment bolt.
6. Check that the reverse disc is
at least 3/16-inch away from the
transmission drive pulley. Then
hold the reverse adjustment bolt
steady with one wrench while se­
curely tightening the jam nut with a
second wrench. See Photo 6-37.
7. Place a chalk or pencil mark on
the top edge of the plunger retain­
ing bolt. Now, while watching the
mark, loosen the bolt a full % turn
(Photo 6-38). Do not exceed a %
turn. Doing so could disengage
the bolt from the locking groove in
the side of the plunger.
8. Hold the plunger retaining bolt
steady with one wrench while se­
curely tightening the jam nut
against the side of the plunger
housing with a second wrench.
See Photo 6-36.
9. Check the action of the reverse
disc as explained in the previous
testing procedure.
IMPORTANT
If the above adjustments have not
corrected an improperly function­
ing reverse drive, please call or
write our Technical Service Depart­
ment for further advice.
6-38: Loosen plunger retaining bolt a % turn, then tighten jam nut securely
against plunger housing.
47