Electric Clutch Adjustment; Motion Drive Belt Removal; Motion Drive Belt Replacement - Craftsman 917.255919 Owner's Manual

FtEPA AND ADJUSTMENT
c Move throttle control leve_ Ion dashboard) to slow
position
d Hold governor control lever against idle speed screw.
and adjust idle speed screw to obtain t 200 to 1400 RPM
Fig 31
e Whg slJ_l h olding the governor control lever against idle speed
screw, tum idle mixture vaJveslowly clockwise (F_)(lean
mixture) until speed just starts to slow, Then tum counterclock-
wise (('-"_) (fic_hmixture) until engine begins to run rough
f Turn idle mixture valve back to the midpoint between
rich and lean
g Adjust the idle speed screw to obtain 900 to 1200
RPM Release governor control lever
h
Move throttle control (on the dashboard) to _FAST'"
If engine hesitates or dies, turn idle mixture valve ap-
proximately I/8 turn counterclockwise (Y-'_) until
engine wit! accelerate as throttle control is moved from
"SLOW" to "FAST"
FIGURE 31
/
4_ Electric Clutch Adjustment
The electric clutch (Fig° 32) should provide years of ser-
vice, The clutch incorporates a built-in brake that stops
the pulley almost immediately, Eventually, the internal
brake will wear so the mower blades will not stop as
recommended. Adjustment must be made by a Sears
Service Technician,,
5. Motion Drive Belt Renloval
The belt on this tractor is special for this application.
Always replace wffh the Sears belt number in the parts
list. It is not necessary to remove mower.
a o Raise hood and disconnect negative ground bat-
tery cable°
b. Set parking brake (to get belt slack).
c., Loosen (do not remove) two engine pulley belt
guide bolts and swivel R.H. side of belt guide up.
Tighten LHo bolt to hold belt guide in position
(Fig,, 33).
d,, Roll belt off engine pulley,
e. Roll belt off "'V" idler, flat idler and adjustable
idler pulleys (Fig. 34),
f o Pult belt off clutch pulley - between pulley and
frame.
6, Motion Drive Belt Replacement
NOTE: THERE IS A BELT INSTALLATION DECAL UNDER
Loll,, FOOTREST°
a. Push belt down from engine pulley area.. Place
back (flat) side of belt on flat idler. (Flat idler is
next to frame),.
b. Place belt on adjustable idler and over clutch
pulley. "'V" (narrow) part of belt should engage
clutch pulley.,
21
FIGURE 32
BELT
GUI
LOOSEN
ENGINE
PULLEY
FIGURE 33
I CLUTCH
ADJUSTABLE PULLEY TRANSAXLE
"'V'" IDL£R IDLER PULLEY
FIGURE 34