Sears 917.25597 Ce And Adjustments, To Replace Mower Blade Drive Belt, TO ADJUST BRAKE See Fig

Models: 917.25597

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CE AND ADJUSTMENTS

CE AND ADJUSTMENTS

TO REPLACE MOWER BLADE DRIVE BELT

(See Fig. 28)

Park the tractor on level surface_ Engage parking brake.

oRemove mower drive belt (See'q'OREPLACE MOWER DRIVE BELT" in this section of this manual).

. Remove mower (See "TO REMOVE MOWER" in this section of this manual).

. Remove four screws from Roll. mandrel cover and

remove cover° Unhook spring from bolt on mower housing°

°Carefully roll belt off R.H. mandrel,.

°Remove belt from center mandrel, idler pulley, and L.Ho mandrel

NYLON LOCKNUT (3)

BRAKE PLATE

FIG, 29

TO ADJUST BRAKE (See Fig. 30)

°

Remove

any dirt or grass which may have accumu-

Your

tractor is equipped

with an

adjustable

brake system

 

lated around mandrels and entire upper deck surface°

which

is mounted

on the left side of the transaxle,

 

 

°

Check

secondary

idler

arm and idler to see that they

Iftractor requires more than six (6) feet stopping distance

 

rotate

freely,,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

at high speed in highest gear, then brake must be adjusted,

-

Be sure

spring is hooked in secondary idler arm

and

IMPORTANT: DO NOT OVER TIGHTEN BRAKE. WHEN

 

sway-bar

bracket°

 

 

 

 

 

 

 

 

 

 

 

 

 

DEPRESSING CLUTCH BRAKE PEDAL, THE MOTION DRIVE

°

Install new belt in lower

groove

of L.H. mandrel,

idler,

BELT MUST STOP

MOVING (DECLUTCH

FROM ENGINE

 

and center

mandrel as shown.

 

 

 

 

PULLEY)

BEFORE

BRAKE

ENGAGES.

iMPROPER

°

Roll belt

over RoHomandrel.

Make sure belt is in all

ADJUSTMENTWILLCAUSE HARDSHIFTINGAND EXCESSIVE

WEAR TO BRAKE LINING,,

 

 

 

 

 

 

 

grooves

properly°

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

o

Park and turn off the tractor

 

on a level

surface.

Place

Reconnect

spring

to bolt in

mower

housing and

rein-

 

 

gear shift lever in "N" (neutral) position° Disengage

 

stall RoHomandrel coven

 

 

 

 

 

 

 

 

 

 

 

 

 

parking brake and be sure tractor does not roll in either

 

 

 

 

 

 

 

 

 

 

 

 

 

°

Reinstall

mower to tractor (See"TO

INSTALL MOWER"

 

direction°

 

 

 

 

 

 

 

 

 

 

 

in the Assembly section

of this

manual).

 

°

Lower

mower deck

(if installed on tractor),,

 

 

o

Reassemble

mower drive belt

(See

"TO REPLACE

°

Snap out access hole cover on left side of tractor

above"

 

MOWER

DRIVE

BELT"

in this section

of this manual),,

 

footrest..

 

 

 

 

 

 

 

 

 

 

L,H,

 

 

 

 

MOWER

BLADE

 

 

 

 

Loosen jam nut at clevis which will allow brake

rod to be

 

 

 

 

 

 

CENTER

 

 

rotated.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRIVE

_LT

 

 

 

 

With pliers, from underside

of chassis,

unscrew

brake

 

 

 

 

 

 

 

 

 

 

MANDREL

 

 

 

 

 

 

 

 

 

 

 

 

 

rod from

clevis

four (4) to six (6)

full turns.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

o

Start tractor

with gearshift

lever

in "N';(neutral)

posi-

 

 

 

 

 

 

 

 

 

 

 

 

 

tion.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

°

Slowly

depress

clutch/brake

pedal to the point where

 

 

 

 

 

 

 

 

 

 

 

 

 

the motion drive belt stops moving,, Hold clutch/brake

SPRING

 

 

 

 

 

 

 

 

 

 

 

pedal inthis position and engage parking brake., If belt

 

 

 

 

 

 

 

 

 

 

 

begins to move after engaging

parking brake,

reset

 

 

 

 

 

 

 

 

 

 

 

 

 

parking brake by depressing clutch/brake pedal slightly

 

 

 

 

 

 

 

 

 

 

 

 

 

to next notch on parking brake.

 

 

 

 

 

SWAY-BAR,/

 

 

 

 

 

 

 

 

.

Stop engine.

Screw brake

rod

back

into clevis until

 

BRACKET

 

 

 

 

 

 

 

 

 

 

clevis pin is against rear edge of slot in brake arm_ Do

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PULLEY

 

 

 

 

 

 

not over tighten

(see "IMPORTANT" aboVe),,

 

 

 

 

 

 

 

FIG. 28

 

 

 

 

 

°

Tighten jam nut against clevis,,

 

 

 

 

TO ADJUST

ATTACHMENT

 

CLUTCH

 

°

Replace

access

hole cover.

 

 

 

 

 

 

 

°

Test tractor for properstopping

distance

and declutching

(See Fig. 29)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

as stated

above.

Readjust

if necessary.

If proper

The electric clutch should provide years of service_ The

 

adjustment cannot be attained, further maintenance is

 

necessary. Contact your nearest authorized service

clutch has

a

built_in brake that stops the pulley within 5

 

 

center°

 

 

 

 

 

 

 

 

 

 

 

seconds,, Eventually, the internal brake will wear which

 

 

 

 

 

 

 

 

 

 

 

 

 

 

may cause the mower blades to not engage, or, to not stop

 

 

 

 

 

 

 

 

 

 

 

 

 

 

as required. Adjustments should be made by an authorized

 

 

'

 

JAM NUT

__

 

 

 

 

 

 

service technician,,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

oMake sure attachment clutch and ignitionswitches are in "OFF" position.

° Adjust the three nylon Iocknuts until space

between

 

 

 

 

clutch plate and rotor measures ,,012"at all three slot

 

 

 

 

locations cut inside of brake plate.,

BRAKE

!

\

\k\

IOI

NOTE: After installing a new electric clutch, run tractor at

CLEVIS

ROD

"_

 

full throttle and engage and disengage electric clutch 10

 

 

 

FIG.30

 

cycles to wear in clutch plate.

21

 

 

 

Page 21
Image 21
Sears 917.25597 Ce And Adjustments, To Replace Mower Blade Drive Belt, TO ADJUST BRAKE See Fig, To Adjust, Attachment