Case J40 - Page 7

ADJUSTMENTS
CAUTION: Disengage attachment
drive lever, stop engine and remove
keys and spark plug wire{s) before
making adjustments.
1. Height Selection Lever. See Figure 4.
The mower cutting height is adjustable from V/j" to
3%" in V2" increments.
To change cutting height:
a. Raise mower into transport position to relieve
weight from the height selection lever.
b. Pull outward on the height selection knob.
c. Move the lever up or down to the desired height.
d. Push knob into the hole selected.
2. Gauge Wheels. See Figure 4.
Always operate the mower with the gauge wheels on
the ground and all weight off the mower lift links to
obtain a level and uniform cut. Be sure the gauge
wheels clear the ground when transporting the mower.
GAUGE WHEEL
FIGURE 4 ADJUSTMENTS
3. Drive Belt Tension. See Figure 5.
The mower drive belt is property tensioned when the
front idler spring has 1/8 inch (approximately the
thickness of two nickels) gaps between its coils.
IMPORTANT Check and adjust the tension on a new
belt after the first 20 minutes and the
next hour of mowing since it is normal
for a belt to stretch slightly during its
initial run-in period.
To increase the belt tension, turn the adjusting crank in
a counterclockwise direction while facing the front of
the tractor.
To decrease the belt tension or to install or remove the
belt, turn the adjusting crank clockwise.
DECK DRIVE
PULLEY
1 WIND KEV CLOCKWISE
BV HAND AS FAR A!
POSSIBLE AND PLACE
ATTACHMENT DRIVE IN
ENCAGEMEM POSITION
Ji INSTALL BELT OVER
PULLEYS AND IDLER
PULLEYS AS SHOWN
DOUBLE CHECK THAT THE
BELT IS PROPERLY SEAT-
ED IN EACH PULLEY WITH
ONLY ONE K DECREE
I*IST BETWEEN SUCCEED-
ING PULLEYS
J WIND KEV COUNTER.
CLOCKWISE UNTIL SPRING
SHOWS t.'fl INCH GAP BE
IWEEN COILS AS VIEWED
FROM THE SIDE THE 1*0
IDLER PULLEYS SHOULD BE
APPRO" EVEN OB CLOSE
TO A COMMON CtNTER
LINE
* AT PERIODIC INTERVALS
RECHECK FOR \ft INCH
CLEARANCE BETWEEN
COILS AND ADJUST AS
REQUIRED
FIGURE 5
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