Sears 917.253580 Owner's Manual page 11

REMOVING MOWER
FROM TRACT OR
t
1.Disengage Mower Clutch Control ("OFF" position).
2.Remove Engine Belt Guard (Fig. 4).
3.Remove belt from Engine Pulley.
4.
(Refer to Fig. 7). Remove:;Retainer Spring holding Adjust-
ing Pin to Idler Shaft Assembly. Remove Adjusting Pin
from Idler Shaft Assembly. '
5.
(Refer to" Fig, 8). Remove Retainer Spring from Adjusting
Pin, Remove Adjusting Pin from Idler Shaft Assembly. Un-
hook Spring from Idler Frame and Front Axle Bracket.
(Fig, 5), Remove Idler Shaft Assembly from front of trac-
tor and place on ground between front wheels.
6.Lower mower by means of the Lift Lever (Fig. 12), to its
extreme low position.
7.
Pull all four Attaching Plungers (Fig. 2) outward to detach
mower from tractor.
8.
Turn front wheels to left and slide mower out from under
R.H. side of tractor.
OUTER BLADES DRIVE BELT
(CENTER TO OUTER MANDRELS)
1.
Remove mower from tractor,
2.Unhook Spring from rear of Be!+ Guide. Remove Belt
Guide at center mandrel by removin!,! the 3 Belt Guide Nuts,
Lockwashers, and Flat Washers (Fig. 19).
3. Remove cotter pins at front of Lower Suspension Arms,
Move suspension linkage outward and swing to rear--both
R.H. and L.H. sides.
4.48" MOWER ONLY. Remove the three cap screws and
lockwashers and remove Upper Center Mandrel Sheave.
5.
Remove mower deck Cover.
6.Remove one bolt in Belt Guide (No, 26, page 10) at L.H.
Mandrel Sheave (Fig. 20), Loosen the other bolt. Swing
Belt Guide to one side.
7.
Remove Belt.
8.
Remove any dirt and grass which may have accumulated
around sheaves and idler arm.
9.lnstall new belt in groove of L.H. Mandrel Sheave lower
groove of Center Mandrel Sheave and around Flat Idler.
From a position at discharge end of mower, grasp rear-
most strand of belt in left hand and pull belt coming from
idler with right hand until it will go into groove of R.H.
Mandrel Sheave (Fig. 20).
10.
Rotate Center Sheave by hand to make sure belt is running
in the grooves properly.
A
BLADES WILL ROTATE WITH CENTER
SHEAVE.
11.
Reassemble Belt Guide at L.H. Mandrel and adjust so that
there is 1/16 to 3/32 inch clearance between Guide and
the belt all around.
CENTER SHEAVE
FIGURE 20
FIGURE 21
13.48" MOWER ONLY. Reassemble Upper Center Mandrel
Sheave with three caps screws and lockwashers removed in
step four. Tighten securel y.
14.With main drive belt in position, replace Belt Guide and
snubber at Center Mandrel, and adjust so that there is
1/16 to 1/8 inch clearance between it and the Sheave. Ad·
just drive belt and snubber,
15.
Replace Suspension Arms in their original position and se-
cure with Cotter Pins.
STORAGE
Remove mower from tractor for winter storage. When mower
is to be stored for a period of time, clean it thoroughly, reo
move all dirt, grease, leaves, etc. Give blades and undr>rside of
housing a good coat of grease or rust preventative. Store in a
clean dry area.
Each mandrel should be filled with grease thru the Grease
Fitting located between mower blade and underside of the
mower housing (Fig. 21). Wipe fitting clean before greasing.
Use high performance extreme pressure lubricating grease,
(Amdex No.1 EP or equivalent). Add grease until it oozes out
around the cap above the blade and under the sheave. This
will not damage the grease retainer. Wipe mandrel clean of ex-
cess grease. This grease may be obtained by ordering thr'l
your nearest Sears repair parts department, Part No. 2557n,
Sears, Roebuck and Co, or Simpsons-Sears Ltd. in Canada
1"
serves the right to make any changes in design or improvb
ments without imposing any obligation to install the
$:'1111'
12.
Reassemble Mower Deck Cover. Fasten nuts securely.
-9- upon its items heretofore manufactured.