To Adjust Mower Blade Drive Blade; To Replace Mower Blade Drive Belt; Belt Removal; Belt Installation - Craftsman 917.254791 Owner's Manual

SERVICE AND ADJUSTMENTS
TO ADJUST
MOWER BLADE DRIVE BELT
(See Fig. 22)
Your tractor has been manufactured with the abi_tly to
readjust the mower blade drive beif to provide you with
longer belt ttfe
With engine off and the lift lever tn the highest position,
move attachment ctutch lever sTowly forward. If the lever
moves significantly forward in the slot before resistance
is felt, adfustmant is necessary
Lower the mower deck for easier access
Remove the bolt, nut and Doshaped washers from
rock shaft assembiy
Move extension spring from lower to upper end of
slot _n rock shaft assembly and install bolt, nut and
the D-shaped washers (fiat side of washers down)
Tighten boil and nut to secure the D-shaped wash-
ers (llal side down as shown)
NOTE: When Installing a new belt, be sure spring Is in
lower end of sloL
TO REPLACE MOWER BLADE DRIVE BELT
(See Figs.
22 and
23)
The mower blade drive belt may be replaced wtthout
tools Park ihe tractor on level surface. Engage parking
brake. For assistance, there ts a beif Installation guide
decal on the mower housing.
BELT REMOVAL -
Place attachment clutch in "DISENGAGED" position
, Move attachment lift lever forward to lower mower to
its lowest position.
Ro_ beif off engine pulley
Pult belt off both mandrel pulleys
Spring bett guide away from idler putfey and pull belt
off idler puIley
Slide belt from under extension spdng
BELT INSTALLATION -
Slide belt under extension spring
PJace belt around back side and in groove of both
mandrel pulleys
Spring idler belt guide down and place belt around
rear side of Idler pulley
, Ro{l belt over engine pultey.
Make sure belt is in al_pulley grooves and inside ell
bett guides
,,.,_.
tDLER BELT BELT ENGtNE PULLEY
GUIDE
LH.
MANDREL
EXTENSION
"SP RiNG
. R,H,
ROCKSHAFT
BRAKE
ROD
NUT
FIG. 22
BELT ENGINE
GUIDES PULLEY
FIG. 23
2O