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To replace mower blade drive belt (see fig. 24), To adjust attachment clutch (see, To adjust brake (see fig. 26) – Sears EZ3 917.2566 User Manual

Page 22: Service and adjustments

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SERVICE AND ADJUSTMENTS

TO REPLACE MOWER BLADE DRIVE BELT

(See Fig. 24)

Park the tractor on level surface. Engage parking brake.

« Remove mgwerdrivebelt(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 R.H. mandrel cover and

remove cover. Unhook spring from bolt on mower

housing.

® Carefully roll belt off R.H. 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.

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

idler pulley, and center mandrel pulley as shown.

® Roll belt over R.H. mandrel pulley. Make sure belt is in

all grooves properly.

Reconnect spring to bolt in mower housing and rein­
stall R.H. mandrel cover.

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).

TO ADJUST ATTACHMENT CLUTCH (See

Fig.

25)

The electric clutch should provide years of service. The
clutch has a built-in brake that stops the pulley within 5
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 your nearest

authorized service center/department.

Make sure attachmentclutch and ignition switches are
in “OFF” position.

Adjust the three nylon locknuts until space between

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

locations cut in the 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 ADJUST BRAKE (See Fig. 26)

Your tractor is equipped with an adjustable brake system
which is mounted on the right side of the transaxle.

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

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

Depressclutch/brake pedal and engage parking brake.

® Measure distance between brake operating arm and

nut “A” on brake rod.

If distance is otherthan 1-1/2", loosen jam nut and turn
nut “A” until distance becomes 1-1/2". Retighten jam
nut against nut “A”.

Road test tractorfor proper stopping distance as stated

above. Readjust if necessary. If stopping distance is

still greater than six (5) feet in highest gear, further
maintenance is necessary. Contact your nearest au­

thorized service center/department.

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