Craftsman 917.258911 Lawn Mower User Manual


 
;ERVmCEAND A
mini = u m re=l= i iH i= i = =ll=l= i i =l i=ll,==,=lHi, ,= =,ll i =i= H
o
L.H.
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 23)
Park the tractor on level surface. Engageparking brake.
o Removemower drive belt(See'q'O REPLACE MOWER
DRIVE BELT" in this section of this manual),
= Remove mower (See "TO REMOVE MOWER" inthis
section of this manual).
= Remove four screws from RHo 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 puleyo
= Remove any dirt or grass which may have accumu-
lated around mandrels and entire upper deck surface,
Check secondary idler arm and idrer to see that they
rotate freely°
= Be sure spring is hooked in secondary idler arm and
sway-bar bracket.
o install new belt in lower groove of LH. mandrel pulley,
idler pulley, and center mandrel pulley as shown.,
= Roll belt over R,H, mandrel pulley° Make sure belt is in
all grooves properly.
° Reconnect spring to bolt in mower housing and rein-
stall R.H,,mandrel cover.
° 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" inthis section of this manual).
CENTER
MANDREL
MOWER BLADE
DRIVE BELT
USTMENTS
llmHi iml mllll i ii ii iH llllll ii i i ii
NOTE: After installinga new electric clutch, run tractor at
full throttle and engage and disengage electric clutch 10
cycles to wear in clutch plate,
CLUTCH PLATE
NYLON LOCKNUT (3)
FIG. 24
BRAKE PLATE
TO ADJUST BRAKE (See Fig. 25)
Your tractor is equipped with an adjustable brake system
which is mounted on the side of the transaxte.
tf tractorrequires more than six (6) feet stopping distance
at high speed inhighest gear, then brake must be adjusted.
° Depress clutch/brake pedal and engage 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" untit distance becomes 1-1/2", Retighten jam
nut against nut "A'L
Road test tractorfor proper stopping distance asstated
above. Readjust ifnecessary. If stopping distance is
still greater than six (6) feet in highest gear, further
maintenance is necessary. Contact your nearest au-
thorized service center/department.
MANDREL
COVER
IDLER ARM
SWAY-BAR IDLER
BRACKET PULLEY ",.
\
\
\
FIG. 23
TO ADJUST ATTACHMENT CLUTCH
(See Fig. 24)
The electricclutch should provide years of service. The
clutch has a buit-in brake that stops the puley within 5
seconds° EventualIy, the internal brake wil wear which
may causethe mower blades tonot engage, or,to not stop
as required_ Adjustments should be made by your nearest
authorized service center/department.
° Make sure attachment clutch and ignition switches are
in "OFF" position.
° Adjust the three nylon Iocknuts until space between
clutch plate and rotor measures .012" at all three slot
locations cut in side of brake plate.,
WITHPARKINGBRAKE "ENGAGED"
NUT "A"
Jf
/"/-----_._, JAM NUT
/ .1-1/2 "_ \
OPERATING
FIG. 25
23 i