Simplicity 9518 Series - Pedal and Clutch Adjustments

ADJUSTMENTS
FAN PULLEY
CRANKSHAFT PULLEY
FIGURE 29
T-69361
FIGURE 30 -L.H. View
A. Adjusting Bolts 1. Alternator
FAN BELT ADJUSTMENT (Figures 29 & 30)
The fan belt adjustment must be checked periodically
and proper adjustment maintained at all times. If belt
is allowed to become loose enough to slip on pulleys, it
will greatly affect cooling system causing engine to
run hot due to insufficient air flow and circulation of
coolant. The fan belt must not be over-tightened as it
will reduce life of alternator bearings, fan and pump
shaft bearing and fan belt.
T-69378
FIGURE 31 - L.H. View
2.
Clutch Pedal 5.
Lock Nut
3.
Clutch Lever 6. Clutch Rod
4.
Yoke
Adjust fan belt to give .3 to .4” (8 to 10 mm) belt deflec¬
tion midway between alternator and fan pulley. Belt de¬
flection is obtained by a 33 lb. (147 N) force on a spring
scale attached to belt.
To adjust fan belts, loosen capscrews on alternator
brace and lower pivot point (A), move alternator toward
or away from engine until above deflection is obtained
and retighten capscrews. (Figure30).
ENGINE CLUTCH PEDAL ADJUSTMENT (Figure 31)
The engine clutch pedal is initially adjusted to have .6”
to .8” (15 to20 mm) free travel at pedal pad. During op¬
eration this free travel will gradually diminish. The
pedal free travel determines amount of clearance be¬
tween clutch release bearing and clutch release levers.
No pedal free travel will lead to clutch slippage or fail¬
ure of clutch release bearing.
To adjust clutch pedal linkage, disconnect clutch rod
from clutch lever and adjust yoke on rod until there is
.6” to 8” (15 to 20 mm) of free travel at pedal pad, with
rod attached to clutch lever and pedal against stop.
When correct adjustment is obtained, attach rod to
clutch lever with pin and insert and spread retaining
cotter pin.
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