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Craftsman EZ3 917.258872 Owner's Manual page 23

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rl,,:_i L i:,:lJ .............
SERVICE
A
D ADJUSTMENTS
"_'_; 'TO:REPLACE
MOWER
BLADE DRIVE
BELT"
; Make sure attaclimedt ctutch and igniti0n'switches
are
(See Fig. 25)
in "OFF"
position,
Park the tractor on level surlace.. Engage parking brake,
Remove mower drive belt (See'q'O REPLACE MOWER
DRIVE BELT" in this section of this manual)..
o
Remove mower (See "TO REMOVE MOWER" in this
section of this manual)..
Remove four screws from R.H., mandrel cover and
remove cover,
Unhook spring from bolt on mower
housing..
°
Carefully roll belt off R.H_ mandrel pulley.
"
Remove belt from center mandrel pulley, idler pulley,
and LH. mandrel pulley
Remove any dirt or grass which may have accumu-
lated around mandrels and entire upper deck surface
o
Check secondary idler' arm and idler to see that they
rotate freely.
Be sure spring is hooked in secondary idler arm and
sway-bar brackeL
°
Install new belt in lowel_ groove of L.H.. mandrel pulley,
idler pulley, and center mandrel pulley as shown.
°
Roll belt over R. H, mandrel pulley
Make sure belt is in
al! grooves properly.
Reconnect spring to bolt in mower housing and rein-
stall RH.. mandrel cover_
o
Reinstall mower to tractor (See "INSTALL MOWER
AND DRIVE BELT" in the Assembly section of this
manual)..
°
Reassemble
mower drive belt (See "TO REPLACE
MOWER DRIVE BELT" in this section of this manual)°
LH.
MOWER
CENTER
MANDREL
BLADE
DRIVE BELT
MANDREL
IDLER
PULLEY
R_H_
MANDREL
'.
COVER
SECONDAt
IDLER ARM
SPRING
SWAY-BAR
BRACKET
SCREW
FIG, 25
TO ADJUST
ATTACHMENT
CLUTCH
(See Fig. 26)
The electric clutch should provide years of service.
The
clutch has a built-in brake that stops the pulley within 5
seconds.
Eventually, the internal brake will wear which
may cause the mower blades to not engage, or, to not stop
as required.. Adjustments should be made by your nearest
authorized service centeddepartmenL
o
Adjust the three nylon locknuts until space between
clutch plate and rotor measures 012" at al! three slot
locations cut in side of brake plate_
NOTE: After installing a new electric clutch, run tractor at
full throttle and engage and disengage electric clutch 10
cycles to wear in clutch plate.
ROTOR
CLUTCH
PLATE
SLOT
NYLON LOCI(NUT (3)
FiG. 26
BRAKE PLATE
TO ADJUST
BRAKE
(See Fig, 27)
Your tractor is equipped with an adjustable brake system
which is mounted on the side of the transaxle,
if tractor requires more than six (6) feet stopping distance
at high speed in highest gear, then brake must be adjusted
Depress clutch/brake pedal and en gage parking brake_.
Measure distance between brake operating arm and
nut "A" on brake rod..
If distance is other than 1-1/2", loosen jam nut and turn
nut "A" until distance becomes 1-1/2"
Retighten jam
nut against nut "A"..
Road test tractor for proper stopping distance as stated
above. Readjust if necessary,
tf stopping distance is
still greater than six (6) feet in highest gear, further
maintenance is necessary., Contact your nearest au-
thorized service center/department.
WITH PARKING BRAKE "ENGAGED"
FIG, 27
23

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