Craftsman EZ3 917.258990 Owner's Manual download pdf (Page 23)

II,,U, i I' IIII I1"111' '

SERVmCE AND ADJUSTMENTS

,uH lU,iH,ilU,,lUllll,'"'NU' U' I ' I U I

- Make sure attachment clutch and ignition switches are

in "OFF" position..

* Adjust the three nylon tocknuts until space between

clutch plate and rotor measures 012" at all three slot

locations cut in side of brake plate

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

full throttle and engage and disengage electric clutch 10

cycles to wear in clutch plate.

TO REPLACE MOWER BLADE DRIVE BELT

(See Fig. 26)

Park the tractor on level surface_ Engage parking brake

. Remove mower drive belt (See''TO REPLACE 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 RH mandrel cover and

remove cover. Unhook spring from bolt on mower

housing

CarefuNy roll belt off RH. mandrel pulley.

Remove belt from center mandrel pulley, idler pulley,

and L.H. mandrel pulley.

Remove any dirt or grass which may have accumu-

lated around mandrels and entire upper deck surface

Check secondary idler arm and idler to see that they

rotate freely+

Be sure spring is hooked in secondary idler arm and

sway-bar bracket..

ROTOR\ CLUTCH PLATE

SLOT (3)_ -- 012"

NYLON LOCKNUT (3) BRAKE PLATE

FIG. 27

Install new belt in lower groove of L H+mandrel pulley,

idler pulley, and center mandrel pulley as shown.

Roll belt over RHo mandrel pulley. Make sure belt is in

all grooves properly.

Reconnect spring to bolt in mower housing and rein-

stall RH mandrel cover..

TO ADJUST BRAKE (See Fig. 28)

Your tractor is equipped with an adjustable brake system

which is mounted on the side of the transaxleo

If tractor requires more than six (6) feet stopping distance

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

Reinstall mower to tractor (See "INSTALL MOWER

AND DRIVE BELT" in the Assembly section of this

manual)

Reassemble mower drive belt (See "TO REPLACE

MOWER DRIVE BELT" in this section of this manual)

LH, MOWER

MANDREL BLADE CENTER

DRIVE BELT MANDREL

IDLER

PULLEY

SECC

IDLER ARM

SPRING

FIG, 26

TO ADJUST ATTACHMENT CLUTCH

(See Fig, 27)

The electnc ciutch should provide years of service The

clutch has a buill-in brake that stops the pulley within 5

seconds Eventually, tile internal Drake will wear whicr,

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

as required Adjustments should be made by your nearest

authonzeo service centerldepartment

o Depress clutch/brake pedal and engage parking brake.

* Measure distance between brake operating arm and

nut "A" on brake rod.

If distance is other than 1-1/2", loosen jam nut and turn

nut "A" until distance becomes 1-1/2" Retighten jam

nut against nut "A".

Road test tractor for proper stopping distance as stated

above. Readjust if necessary, If stopping distance is

still greater than six (6) feet in highest gear, further

maintenance is necessary Contact your nearest au-

thorized service center/department

WITH PARKING BRAKE "ENGAGED"

NUT "A"

JAM

NUT

+_.,..._ OPERATING

ARM

FIG. 28

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 59 60

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Craftsman EZ3 917.258990 Owner's Manual Page 23

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