Blade Replacement - Craftsman 917.254722 Owner's Manual

REPAIR & A DJUS TMEN TS
b. To raise rear of mower, loosen nut "E" on borh
rear suspension arms, Screw both nuts "F" up
an EQUAL NUMBER OF TURNS (Fig. 42),
c. When distance "'D" is !/2"" /ower at front than
rear, tighten nuts "E"
d, To lower rear of mower, loosen nut "F" on
both rear suspension arms an EQUAL NUM-
BER OF TURNS (Fig, 42),
e, When distance "D" is 1/2"" lower 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,
a, Remove bolt, fockwasher and washer (Fig.
43)
(turn counterclockwise)(_'_ ).
b. Remove and discard old blade.
c, Clean top and bottom of mower housing,
d, Place new blade between flanges, (Install with
sharp edge down), and secure with washer, lock-
washer and bolt previously removed.
ALWAYS USE GRADE 5 HEAT TREATED
BOLTS TO ATTACH BLADES. CHECK
BOLTS tN BLADES OCCASIONALLY TO
MAKE SURE BOLTS ARE TIGHT. TORQUE
BOLTS 30 - 35 FT- LBS.
FIGURE 40
/
FLANGE
\
BOTTOM
OF CURL
D
GROUND_"T
LEVEL FIGURE 41
A GRADE 5 HEAT TREATED BOLT
CAN BE IDENTIFIED BY THREE
UNES ON THE BOLT HEAD AS
SHOWN AT LEFT.
L_FT LEVER_
PLUNGER _/
[.EVER
BOTTOM __
OF CURL , i _ ._
GROUND
LEVEL
FIGURE 39
iBOTTOM
OF CURL
)
24
BLADE ___
L_KWAS.E. ------"-'.@ _
"-,._
.,×,o_,. s---_
FtGURE 43