Troy-Bilt Tuffy 630B Operator's Manual page 8

Rear-tine tiller
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4.Thread the
#10-24 hex nut (Z, Fig. 2-5)
halfway onto the screw (V).
5. Thread the screw (V) into the cable
adjuster (X).
6. Hook the cable spring (W, Fig. 2-6) into
the V-shaped bend in the Forward Clutch
Bail (Y).
7. Check for correct tension on the for-
ward drive belt by taking two measure-
ments of the cable spring, as follows:
a. With the Forward Clutch Bail (Y, Fig. 2-
6) in an open (released)position, mea-
sure the length of the cable spring (W)
from the outermost coil to the outer-
most coil.
b. Squeezethe Forward Clutch Bail against
the handlebar (see Fig. 2-7) and re-
measure the spring length. The belt
tension is correct if this second mea-
surement is between 1/16" to 3/16"
longer than the first measurement. If
so, turn the hex nut (Z, Fig. 2-7) tightly
against the cable adjuster (X) while pre-
venting the cableadjuster from turning.
c. If the spring length is incorrect, you
must adjust the cabletension as
described in Checkingand Adjusting
Forward Drive Belt Tension in Section 5.
Incorrect cable tension can result in belt
slippage (cabletension too loose), or
unintentional tine movement when the
clutch bail is in Neutral (cabletension
too tight).
Wm
v
Fig. 25: Cable
springand
adjuster,
Fig,2-6: Attach forward
clutch cablespring to
forward clutch bail.
Fig.2- 7: Tocheckforward belttension,taketwomeasurements of thelength ofthecoilsin
thespring- firstwiththebail open,thenwiththebailheldagainstthehandlebar,
STEP5: INSTALL REVERSE CLUTCH
CABLE (MODELS634F AND 634B
ONLY)
1. Unwrap the reverse clutch cable (CC,
Fig. 2-8 and Fig. 2-9) from its shipping
position and route it up to the handlebar.
Be sure that the cable is routed beneath
the Forward Clutch Bail.
2. Using the two self-tapping screws (AA,
Fig. 2-8) secure the reverse cable
mounting bracket (BB)to the handlebars,
as shown.
3. Insert the cable (CC,Fig. 2-8) through
the slot in the cable bracketand position
the flat side of the threaded assembly next
to the flat side of the hole. Slide the hex
nut (DD) up the cable and tighten it
securely.
4. Fastenthe reverse clutch cable to the
left side handlebar with a cable tie (EE,
Fig. 2-9).
5. Test the function of the reverse clutch
by pulling out and releasingthe cable
knob. The knob should return to its neu-
tral position (resting against bracket). If it
doesn't, contact your local dealer or the
factory for technical assistance.
FlatSide
Fig. 2-8: Installreverse cablebracket a nd
reverse clutch cable,
Fig. 2-9: Route reverse clutchcable (CC) as
shown. Attach with cable tie (EE).

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