Sears 917.253580 Owner's Manual page 6

FIGURE 7A
o
o
.__---MOWER CLUTCH
CONTROL PEDAL
("OFF" POSITION)
FIGURE 7B
BELT
GUIDE
RETAINER_SPRING~IDLER
B
----u
SHAFT
ASSEMBLY
~
ADJUSTING PIN
\
\
/ '
SNUBBER
PULL
ROD
FIGURE 8
. . ______________________________ . . -4-
BELT ADJUSTMENT
1.
Adjust belt by turning Adjusting Pin (Fig. 7) counterclock-
wise to
ti~hteni
clockwise to loosen. Engage Mower Clutch
Control ('ON' Position). Belt is properly adjusted when
Belt can be squeezed together with thumb and fore finger
(without undue pressure) midway between Engine Pulley
and Idler Sheaves. After first 2 hours of mowing, recheck
Belt for proper tension.
2.
Belt from center to outside mandrels is spring loaded there-
fore no adjustment is necessary.
3.
Attach Adjusting Pin to Idler Shaft Assembly using:
one of the large Retainer Springs found in bag of parts.
4.
Assemble Belt Guide to Idler Shaft. Position Belt Guide
Tab in Idler Arm Notch (Fig. 8).
Secure Belt Guide with Lockwasher and Nut. Tighten Nut
securely.
Belt Guide must clear belt by 1/16 to 1/8 inch at points
A and B when clutch lever is engaged (belt tight) in both
highest and lowest cutting position of mower. If Belt
Guide does not clear by 1/16 to 1/8 inch, Belt Guide can
be bent slightly at points A and B with pliers or wrench
to achieve the proper clearance.
5.
Reassemble Engine Belt Guard to engine. Secure with the
two Retainer Springs previously removed (Fig.
4) .
6.
Place Mower Clutch Control Lever in "OFF" Position as
shown in Fig. 7A (if Tractor is equipped with Pedal, refer
to Fig. 7B).
7.
Complete assembly using:
o~
remallllllg Retainer Spring, Washer and Adjusting Pin found
in bag of parts.
a. Thread Adjusting Pin on Snubber Pull Rod until Adjust-
ing Pin will enter hole in Idler Shaft Assembly (Fig.
8).
Remove Adjusting Pin from hole. Turn Adjusting Pin
counterclockwise
6
complete turns and slip Washer on
Pin. Insert Pin in Idler Shaft Assembly. NOTE: Mower
Clutch Control can be pushed ahead to assemble. Secure
with Retainer Spring.
When Mower Clutch Control is fully disengaged ("OFF"
Position) blades will stop quickly.
MAKE SURE THAT BRAKE IS NOT
A
AGAINST MANDREL PULLEY WHEN
MOWER IS ENGAGED (LEVER OR PED-
AL PUSHED FORWARD TO "ON" POSI-
TION).
8.
If Snubber Pull Rod is ever removed, be sure it is reassembl-
ed as shown in Fig. 9 to Snubber Weldment and secured
with Cotter Pin.
NOTE: SNUBBER PULL ROD MUST BE POSITIONED
UNDER MOWER DRIVE BELT WITH SLIGHT BEND IN
ROD DOWNWARD .