Troy-Bilt 634K Lawn Mower User Manual


 
4. Checkfor correcttension onthe forward
drive belt bytaking two measurementsof
the cablespring, as follows:
a.With the Forward Clutch Bail (Y,Fig. 2-
6) in an open (released)position, measure
the length ofthe cablespring (W) from the
outermost coil to the outermost coil.
b. Squeezethe ForwardClutch Bailagainst
the handlebar(seeFig. 2-7) and re-mea-
surethe spring length. Thebelt tension is
correct if this second measurementis be-
tween 1/16"to 3/16" longer thanthe first
measurement.If so, turn the hex nut (Z,
Fig. 2-7) tightly against the cable adjuster
(X) while preventingthe cableadjuster
from turning.
c. If the spring lengthis incorrect, you
must adjustthe cabletension asdescribed
in Checkingand Adjusting Forward Drive
Belt Tensionin Section 5. Incorrect cable
tension can result in beltslippage (cable
tension too loose), or unintentional tine
movement whenthe clutch bail is in Neu-
tral (cabletension too tight).
Wm
Fig.2-5: Cable
springand
adjuster.
W
Fig. 2-6: Attachforward
clutchcablespringto
forwardclutchbail.
iiiiiiiiiiiiiiii
Fig. 2-7: Tocheckforwardbelttension, take twomeasurementsof thelengthofthe coils inthe
spring-- firstwiththebail open,then withthe bail heldagainst thehandlebar.
STEP 5: INSTALL REVERSECLUTCH
CABLE (MODEL 634A ONLY)
1. Unwrapthe reverseclutch cable (CC,
Fig.2-8 and Fig.2-9) from its shipping po-
sition and route it up to the handlebar.Be
surethat the cable is routedbeneaththe
Forward Clutch Bail.
2. Insertthecable(CC,Fig.2-8)through the
slot inthecablebracketandpositionthe flat
sideof the threadedassemblynextto the
flat side ofthe hole. Slidethe hexnut (DD)
up thecableandtighten it securely.
3. Fastenthe reverseclutch cable to the
left sidehandlebarwith acabletie (EE,Fig.
2-9).
4. Testthefunction ofthe reverseclutch by
pulling out and releasingthe cableknob.
Theknob should return to its neutral posi-
tion (resting against bracket). If it doesn't,
contact your local dealeror Troy-Bilt LLC
for technical assistance.
Flat Side
Fig. 2-8:/nsta//reverse cable bracketand
reverseclutchcable.
Fig. 2-9: Routereverseclutchcable(CC)as
shown.Attachwithcable tie (EE).