Blade Replacement - Craftsman 917.254740 Owner's Manual

REPAIR & ADJUSTMENT
OF CURL _ --_ ':_ L_= _ i::,-. BOTTOM
\ [ r'k-L ........... _-_1 ; OF CURL
, i .... ! _ i L
GROUND GROUND
LEVEL LEVEL
FIGURE 38
SlOE.TO.SiDE _
ADJUSTMENT_ NUT "8" J
TRU_
FIGURE 39
b. To raise rear of mower, loosen nut "E"on both rear
suspension arms. Screw both nuts "F" up an
EQUAL NUMBER OF TURNS (Fig. 41).
c. When distance "D" is I/2" (1.27 cm) lower at front
than rear, tighten nuts "E".
d. To lower rear of mower, !oosen nut "F" on both rear
suspension arms an EQUAL NUMBER OF TURNS
(Fig. 4!).
e. When distance "D" is 1/2"(1.27cm) Iower at front
than rear, retighten nuts "E".
NOTE: WHEN ADJUSTING REAR SUSPENSION TRUN-
NIONS, ALWAYS ADJUST BOTH EQUALLY SO MOWER
WILL STAY LEVEL.
.
Blade Replacement
Raise mower to highest position to permit access
to blades or remove mower (page 23),
a. Remove bolt, /ockwasher and washer (Fig. 42)
(turn counterc/ock wise) ( f-_', ),
b. Remove and discard old blade.
c, Clean top and bottom of mower housing.
do Instatl new blade with SHARP EDGE DOWN and
secure with fiat washer, lockwasher and hex
head bolt. TIGHTEN SECURELY.
ALWAYS USE GRADE 5 HEAT
TREATED BOLTS TO ATTACH
BLADES, CHECK BOLTS IN BLADES
OCCASIONALLY TO MAKE SURE
BOLTS ARE TIGHT. TORQUE BOLTS
TO 30_35 FT. LBS, (41-47 N-M).
REAR f
SUSPENSION
BOTTOM
OF CURL
\
\
A GRADE 5 HEAT TREATED BOLT
CAN BE IDENTIFIED BY THREE
LINES ON THE BOLT HEAD AS
SHOWN AT LEFT.
FIGURE 40
WASHER
LOCKWASHER
HEX BOLT
(GRADE 5) "_
MANDREL
ASSEMBLY
FLANGES