Sears 917.253582 User manual

ISears I
OWNERS
MANUAL
MODEL NO.
917.253582
42 INCH AND
MODEL NO .
917 . 253592
48 INCH
Caution:
Read Rules
for
Safe Operation
and
Instructions
Carefully
42 AND 4·8 INCH
ROTARY MOWER
Assembly
· Installation
Operation
Repairs
Parts
Sears, Roebuck and Co., Chicago, Ill. 60684, U . S.A.
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~ULATI ONS on your purchase of a Sears Rotary
,l,ower.
·~
1has
been designed, engineered and manufactured to
give you the best possible dependability and performance
Should you experience any problem you cannot easily reme·
dy, please contact your nearest Sears, Roebuck and Co. Store.
They have competent, well-trained technicians and the proper
tools to service or repair this unit.
...,J
Pl ease read and retain this manual. The instructions will
enable you to assemble, operate and maintain your mower
properly. Always observe
the "RU LE S FOR SAFE OPERA-
TION".
FULL ONE YEAR WARRANTY
ON ROTARY MOWER TRACTOR ATTACHMENT
(EXCLUDING BLADE(SJ AND BLADE ADAPTER(SJ
For one year from the date of purchase, when this rotary mower tractor attachment is main-
tained and lubricated according to the operating and maintenance instructions in the owner's
manual, Sears will repair free of charge any defect in material or workmanship.
.
This warranty excludes blade(s) and blade adapter(s), which are expendable and become worn
during normal
use.
This warranty does not cover:
,?'
repairs necessary because of operator abuse or negligence, including the failure
to maintain the equ ipment according to instructions contained in the owner's
manual; and
rotary mower
tractor attachments used for commercial or rental purposes.
WARRAN TY SERVICE IS AVAILABLE BY CONTACTING THE NEAREST STORE OR
SERVICE CENTER IN THE UNITED STATES. This warranty applies only while this product
is in use in the United States.
This warranty gives you specific legal rights,
and you may also have other rights which vary
from state to state.
SEARS, ROEBUCK AND CO. , Sears Tower, Dept. 698/731A, Chicago, IL 60684
TABLE OF CONTENTS
RULES FOR SAFE OPERATION 1
ASSEMBLY INSTRUCTIONS 2
PRE-USE ADJUSTMENT • 5
OPERATING INSTRUCTIONS • 6
MAINTENANCE INSTRUCTIONS 7
REPAIR PARTS . 11
OPTIONAL EQUIPMENT
ASSEMBLY
OF GAUGE WHEELS
16
GAUGE WHEEL REPAIR PARTS .
17
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;
.
r
RULES FOR SAFE OPERATION
LOOK FOR THIS SYMBOL TO POINT OUT IMPORTANT
SAFETY PRECAUTIONS.
IT MEANS -- ATTENTION! BECO ME
ALERT! YOUR SAFETY IS INVOLVED .
1. Know the controls and how to stop quickly. READ THE
OWNER'S MANUAL.
2. Do
not allow children to operate the vehicle. Do not allow
adults to operate it without proper instruction.
3. Do not carry passengers. Keep children and pets a safe dis·
tance away.
4. Always wear substantial footwear. Do not wear loose fitting
clothing that could get caught in moving parts.
5. Keep your eyes and mind on your tractor, mower and the
area being cut. Don't let other int erests distract you .
6. Do
not attempt to operate your tractor or mower when
not in drivers seat . •
7. Always get on or off your tractor from the operators left
hand side.
8. Clear
the work area of objects which might be picked up
and thrown.
9. Disengage all attachment clutches and shift into neutral be·
fore attempting to start the engine.
1 0. Disengage power to attachments and stop the engine be·
fore leaving the operator's position.
11. Disengage power to mower, stop the engine and disconnect
spark plug wire(s) from spark plug(s) before cleaning, mak·
ing an adj ustment or repairs.
12. Disengage power to attachments when transporting or not
in use.
13.
Take all possible precautions when leaving the vehicle un-
attended, such as disengaging the power-take-off, lowering
the attachments, shifting into neutral, setting the parking
brake, stopping the engine, and removing the key.
14. Do not stop or start suddenly when going uphill or down -
hill. Mow up and down the face of slopes (not greater than
15°); never across the face.
15. Reduce
speed on slopes and make turns gradually to pre-
vent tipping or loss of control. Exercise extreme caution
when changing direction on slopes.
16. Do
not shift gears while going up or down slopes. Choose
a gear low enough
to negotiate the slope without stopping
and shifting gears. To reduce speed, move throttle lever
to slow.
17. Never mow in wet or slippery grass, when traction is un-
sure or at a speed which could cause a skid.
18. Stay alert for holes in the terrain and other hi dden hazards.
19. Do
not drive too close to cre e ks , ditch es and public high-
ways.
20. Exercise special care when mowing around fixed objects
in order to prevent the blades from striking them. Never
deliberately run
tractor or mower into or over any foreign
object.
21 . Never shift gears until tractor comes to a stop.
22. Never place hands or feet under the mower, in the deflector
(discharge chute) or near any moving parts while tractor or
mower are running. Always keep clear of discharge chute.
. 1 .
23. Use care when pulling loads or using heavy equipment.
a. Use only approved drawbar hitch points.
b. Limit loads to those you can safely control.
c. Do not turn sharply. Use care when backing.
d. Use counterweight or wheel weights when suggested in
this
owner's manual.
24. Watch out for traffic when crossing or near roadways.
25. When using any
attachments, never direct discharge of
material toward bystanders nor allow anyone near the ve·
hicle while in operation.
26. Handle gasoline with care· it is highly flammable.
a.
Use approved gasoline containers.
b. Never remove the cap of the fuel tank or add gasoline to
a running or hot engine, or fill the fuel tank indoors.
Wipe
up spilled gasoline.
c. Open
doors if the engine is run in the garage · exhaust
fumes are dangerous. Do not run the engine indoors .
27. Keep the vehicle and attachments in good operating con-
dition, and keep safety devices in place.
28. Keep all
nuts, bolts and screws tight to be sure the equip·
mentis in safe working condition.
29. Never store the equipment wi th gasoline in the tank inside
a building
where fumes may reach an open flame or spark.
Allow the engine to cool before storing in any enclosure.
30. To reduce fire hazard, keep the engine free of grass, leaves
or excessive grease.
31.
Except for adjustment; DO NOT operate Engine if air
cleaner or cover directly over carburetor air intake is re-
moved. Removal of such part could create a fire hazard.
32. DO NOT OPERATE WITHOUT A MUFFLER OR TAM·
PER WITH THE EXHAUST SYSTEM. Damaged mufflers
or spark arresters could create a fire hazard. Inspect period-
ically and replace if necessary.
33.
The vehicle and attachments should be stopped and inspect·
ed for damage after striking a foreign object, and the dam-
age should be repaired before restarting and operating the
equipment.
34. Do not change the engine governor settings or overspeed
the engine.
35. When using
the vehicle with mower, proceed as follows:
a. Mow only in day l ight or in good artificial light.
b. Never
make a c uttin g height adjustment while the engine
is running
if the operator must dismount to do so.
c.
Shut the engine off when removing the grass catcher or
unclogging chute.
d. Check the blade mounting bolts for proper tightness at
frequent in tervals.
36. Check
the grass catcher bags frequently for wear or deterio·
ration. Replace with new bags for safety protection.
37. Do not operate the Mower without either the entire grass
catcher, on mowers so equipped, or the deflector shield in
place.
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LEVER
PLUNGER
To as semble your Mow er you will need "<.-- 1..
a 9/16" Wrenc h and a Hammer
When R.H. (Right Hand) or L.H. (Left Hand) is
used, it means from a position behind the
steering wheel as if you were seated on the
tractor seat and facing forward.
ASSEMBLY
Install Lift Lever using:
two Flat Washers, two Lockwashers and two Hex Nuts
found in
bag of pa rts.
a. Place Lift Lever (Fig. 1) over Lever Quadrant and tilt
bottom of Lever outward to align Bolts in Lift Shaft
Weldment wi
th holes in Lever.
b. Insta
ll Lift Lever to end of L if t Shaft We ldment (Fi g. 1).
Be sure Lift Lever Bracket straddles Lever Quadrant and
t
ha t Lever fits on end of Lift Shaft. Sec u re with Flat
Washers, Lockwashers and Hex Nuts. Tighten Nuts se-
curely.
c. Depress Lever Plunger and move Lift Lev er to midd le of
Lever Quadrant. Drive Drive Lock Pin through Lever,
Lever Quadrant and
Lift Lever Bracket.
ASSEMBLE MOWER TO TRACTOR
1. Check tractor tire pressure for proper inflation.
2. Drive tractor to an area that is smooth and level.
3. Position mower on R.H. side of tractor as shown {Fig. 2).
4. Turn tractor steering wheel to the extreme left.
5. Lock all four Attaching Plungers in the "OUT" position.
6. Move
Lift Lever to the extreme rear position.
7. Sl ide mower under tractor until Suspension Arms are
directly beneath Hangar Brackets. NOTE: Be sure end of
Snubber Pull Rod is extending to front of tractor and be-
tween front wheels.
8. For ease in attaching mower to tractor, place a two foot
long 2 x 4 (or similar object) flat wise under each end of
mower (Fig. 3).
9. Move Lift Lever to the extreme forward position.
10. Grasp suspension arms by the Spring Box es. Raise R.H.
suspension arms and align
with holes in Front and Rear
Hanger Brackets.
11.
Release front Plunger so that Plunger enters hole in R.H.
Front Hanger Bracket.
12. Release rear Plunger so that Plunger enters slot in R.H. Rear
Hanger Bracket.
13. Repeat st eps 10 , 11 and 12 for L.H. side of mower.
14. Pull Lift Lever back to lift mower.
.. F•I•G•U•R•E•3••••••••1i2ii xil4 ________ .. _
2
_15. Remove Blocks from under each end of mower.
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16. Slide Idler Shaft Assembly into Tractor
17. Install Spring
found in bag of parts.
OFFSET·-- - . '---
LOOP
Hook Offset Loop of Spring into slot in rear of Front
Axle Bracket. Hook other loop of Spring in hole in Idler
Shaft Assembly (Fig. 5).
18. Remove the two Retainer Springs and Engine Belt Guard.
(Fig. 4 · inset).
19. Remove Nut, Lockwasher and Belt Guide (Fig. 6). Place
Belt on Idler Sheaves and on Engine Pulley. NOTE: See Fig.
6
for proper way of installing Belts on Idler Sheaves. Back-
side (outside) of Belt must be placed in Flat (outside) Idler.
Belt must be placed
in largest groove on Engine Pulley.
20. Assemble Adjusting Pin found in bag of parts
0~
to threaded end of Belt Tight ener Link (Fig. 5).
21. Secure
Link to Belt Tightener Lever Arm with Retainer
Spring found in
Bag of Parts.
Install Belt Tightener Link through opening in Idler Shaft
Assembly.
Attach bent end of Link to rear end of Belt
Tightener Lever
Arm. Secure Retainer Spring (Fig. 4 · left
hand inset).
-3-
ENG i r~E --~
PULLEY
FIGURE 4
FIGURE 5
• I II ·· ·/
• 1 1/IU ~
8El.T I If•
1
',
;; t/ /.'ll'- .
., f:'. ,1 LtDLER SHAFT
,. I ~-ASSEMBLY
. ·" : }, ~~-;: ~... · ..
I o, -' ," I
.,
'
FIGURE 6
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FIGURE 7A
FIGURE 78
RETAINER!PRING~IDLER 8
----u SHAFT
ASSEMBLY
r-
ADJUSTING PIN
\\ /
SNUBBER
PULL
ROD
BELT ADJUSTMENT
1. Adjust be lt by t urni ng Adjusti ng Pi n (Fig. 7) counterclock·
W IS e to t i ~hte n j clockwise to loosen. Engage Mower Clutch
Control (
'ON' Position). Be lt is properly ad justed when
Be lt can be squeezed together with thumb and fore finger
(w i thout undue pressure) midw!ly between Engine Pulley
and Idl er Sheaves. After first 2 hours of mow ing, recheck
Belt
fo r proper tension.
2. Belt from center to outsi de mandrels is spring loaded there-
fore no adjustment
is necessary.
3. Attach Adjusting Pin to Idler Shaft Assembly using:
one
of the large Retainer Springs fo und in bag of parts.
4. Assemble Belt Gui de to Idler Shaft. Position Belt Guide
Tab in Idler
Arm Notch (Fig. 8).
Secure Belt Guide with Lockwasher and Nut. Tighten Nut
securely.
Belt Guide must clear belt by 1/16
to 1/8 inch at points
A and B when clutch lever
is engaged (belt tight) in both
highest and lowest cutting position of mower. If Belt
Guide does not clear by 1/16 to 1/8 inch, Belt Guide can
be bent slightly at points A and B with pliers or wrench
to achieve the proper clearance.
5. Reassemble Engine Belt Guard to engine. Secure with the
two Retainer Springs previously removed (Fig. 4).
6. Place Mower Clutch Control Lever in "OFF" Position as
shown in Fig. 7A (if Tractor is equipped with Pedal, refer
to Fig.
7BJ.
7. Complete assembly using:
0~
remaining Retainer Spring, Washer and Adjusting Pin found
in bag of parts.
a. Thr e ad Adjusting Pi n on Snubber Pu ll Rod u nt il Adjus t·
ing Pin wil l enter ho le in Idler Shaft Assembly (Fig. 8).
Remove
Ad j us ting P in from hole. Turn Adjusting Pin
counter clockw ise 6 comp lete turns and s li p Washer on
Pi n. I ns e rt Pin in Idler S haft Assembly. NOTE: Mower
Clutch Control
can be pushed ahead to assemble. Secure
with R et ainer Spring.
When Mower Clutch Control is full y disengaged ("OFF"
Pos i tio n) blarles will stop quickl y.
MAKE SURE THAT BRAKE IS NOT
A
AGAINST MANDRE L PULLEY WHEN
MOWER IS ENGAGED (LEVER OR PED-
AL PUSHED FORWARD TO "ON" POSI-
TION ).
8. If Snubber Pu ll R od is ever remo ve d, be sure it is reassem-
bled as sho wn in Fi g. 9 to Snub be r Weldment and secured
with Cotter Pin.
NOTE: SNUBBER PU LL ROD MUST BE POSITIONED
FIGURE 8 UNDER MOWER DRIV E BE LT WI TH SLIGHT BEND IN
.. ~---------------- .. -4- ROD DOW NWARD.
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P~-USE ADJUSTMENT
LEVEL MOWER FROM SIDE
TO SIDE
PLACE THE MOWER CLUTCH CONTROL
IN THE "OFF" POSITION, LOCK THE
PARKING BRAKE, SHIFT INTO NEU-
TRAL , SHUT OFF THE ENGINE. MAKE
ABSOLUTELY SURE THE BLADES AND
ALL MOVING PARTS HAVE COMPLETE-
LY STOPPED, REMOVE THE IGNITION
KEY, DISCONNECT
THE SPARK PLUG
WIRE(S) FROM
THE SPARK PLUG(S)
AND KEEP WIRE(S) AWAY FROM THE
PLUG(S) TO PREVENT INJURY FROM
ACCIDENTAL STARTING.
1. Depress Lift Lever Plunger. Move Lift Lever to approxi-
m ate ly the middle of notched Lever Quadrant.
2. Rotate outer blades so that they are in line with width of
the tractor. •
3. Measure the height of the tips of outer blades (Fig. 10 ).
Both R.H. and L.H. must be th e same distance from level
surface within 1/8 of an inch.
4. If an adj1.1stment is required, adjust Nut on Hanger Link at
L.H. side (Fig. 11) to level mower . Shorten Link to raise
L.H . side of mower. Leng then Link to lower L.H. side of
mow er.
ADJUST MOWER FROM FRONT
TO REAR
1. Your mower should cut approximately 3/16"1ower at front
than at the rear. With R.H. mower blade in line with length
of tractor, measure the height of the front tip of blade
(Fig. 10). Rotate blade 1/2 turn and measure. The front
tip must be approximately 3/16 of an inch lower at front
than at rear.
2. Adjusting Leveling Pin Nu
ts (Fig. 11) up or down to ob-
tain the above pitch or difference from front to rear.
Adjusting
the Nuts up will raise the rear of the mower.
Lowering Nuts will lower rear
of mower. Tighten the two
Nuts securely against Leveling Pin.
LUBRICATION
Mandrels are shipped lubricated, however we suggest each
mandrel be rechecked by applying grease.
Each mandrel
should be filled with grease thru the Grease
Fitting located between mower blade and underside
of the
mower housing (Fig. 11A). Wipe fitting clean before greasing.
Use high performance, e xtreme 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 excess grease. Under normal usage the mandrels should re-
quire lubrication after every 50 hours of operation and at the
beginning of each new season. This grease may be obtained by
ordering
thru your nearest Sears repair parts department. Part
No. 2557R.
Rea ttach spar k pl ug wire (s) to spark plug(s).
- - - - - - - - "'~ E ~ E~ '- -
SURFACE
FIGURE 10
FIGURE 11
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FI GURE 12
FIGURE 12A
F IGU RE 13
- LEVER PLUNGER CAP
.- -- MOWER CLUTCH
CONTROL PEDAL
("OF F" POSITION)
~-- ·-·----..,
~- - -~-- --- --
t f'i Irr - · --==== = -- ' .., ,!I
I I t f I ! !l t 0
j !11 L~==-- - -! i iii
I l' '--- - - __ )) .
I ' --- I
l ,_ _ _
___ _)
--- . - J
------*"''-* ·-----
FIGURE 15
OPERATING INSTRUCTIONS
DO NOT OPERATE THE MOWER W ITH -
OUT EITHER THE ENTIRE GRASS
CATCHER, ON MOWERS SO EQUIPPED,
OR THE DEFLECTOR
SHIELD IN PLACE.
CAUTION
1. Keep all shields in place.
2. Before leaving operator's
pos ition:
a. Shift transmission to neutral
b. Set parking brake
c. Dis engage attachment clutch
d. Shut off engine
e. Rem ove ignition key
3. Wait
for all movement to stop before servicing machine.
4. Keep people
and pets a safe distance away from machine.
READ THE "RULES FOR SAFE OPERA·
TION" CARE FULLY BEFORE O PE RA T·
lNG YOUR MOWER.
THE MAIN DRIVE BELT (ENGINE TO CENTER MAN·
DREL) MUST BE PROPERLY ADJUSTED BEFORE OPERA·
TING. A
DRIVE BELT NOT PROPERLY ADJUSTED CAN
BE RUINED IN JUST A FEW MINUTES OF OPERATION.
REFER TO STEP 1, PAGE 4. THE MOWER MUST BE
LEVELED FROM SIDE TO SIDE, AND FROM FRONT TO
REAR, BEFORE OP ERAT ING. (REFER TO PAGE 5). THIS
IS NECESSARY FOR LEVEL AND EFFICIENT MOWING.
NOTE: Plac e Gear Shift L ever in neutral and unlock Parkin~
Brake. Depr ess t ra ctor clut ch pedal and disengage ("OFF
position) Mow er Clutch Control (Fig. 12 or 12A).
1. START TRACTOR
AND SET ENGINE SPEED TO
ABOUT 1/3 TO 1/2 THROTTLE BEFORE ENGAGING
MOWER. IN EITHER CASE, ENGAGE ("O N" POSITION)
OR DISENGAGE
("OFF" POSITION) MOWER CLUTCH
CONTROL SLOWLY. AFTER MOWER
IS ENGAGED
("ON" POSITION) SET TO FULL THROTTLE.
NEVER ENGAGE (" ON" POSITION)
MOWER EXCEPT WHEN SITTING ON
TRACTOR
SEAT .
2. START MOWI NG IN A LOW RANGE AND INCREASE
GROUND SPEED BY CHANGING GEARS AS CONDI·
TIONS
WILL PERMIT. Av erage cutting height is approxi·
mately 2 · 1/2 to 2 · 3/4 inch es. Height of cut can be adjust·
ed by means of the Li ft Lever (Fig. 13). Moving the lever
forward
low e rs the mower. Moving it backwards raises the
mower.
The lever latch is actuated by depressing the lever
plunger
cap at the top of the lever handle (Fig. 12). Each
notch changes the height of cut approximately 1/2 inch.
3. Shou
ld some intermediate he ight be desired, loosen the two
Nuts at the bottom of the Lift Lever (F ig. 13). Rotate the
Lever forward or backward relative
to t he shaft. Forward
movement
will raise t he height of cut. Rearward movement
will low er the height of cut. This adjustment wi ll raise or
low er the cutting range approximately 1/2 inch · the equiv·
alent of one notch on the Lift Lever Quadrant. Retighten
.. _______ _____ ______ lllllii .. . 6. Lift Lever Nuts securely.
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~ Drive so that clippings are discharged onto the area that has
been cut. See Fig. 14 for line of cut on right hand side of
mower. H ave the cut area to the right of the machme. This
will result in a more even distribution of clippings and more
unif or m cutting . When mow i ng large areas (Fig. 15). start
by t
urnin g to the ri gh t so that the cl ipp i ngs wi ll be dis·
char ge d away from shru bs, fences, dri veways, etc. After
two or three rounds, mow in the opposite direction making
left hand turns until finished. If grass is extremely tall, it
should be mowed twice. The first time cut relatively high.
The second time
to the des ired height. The left hand side of
mower should be used for trimming.
MAINTENANCE
INSTRUCTIONS
BLADE CARE
For best results mower blades must be kept sharp. The blades
can
be sharpened with a few strokes of a file or on agrinding
wheel. Do not att e mpt to sharpen whil e on mower.
PLACE THE MOWER CLUTCH CONTROL
IN THE "OFF" POSITION, LOCK THE
PARKING BRAKE , S HIFT INTO NEU ·
TRAL AND SHUT OFF THE ENG,.INE .
MAKE ABSOLUTEL Y SURE THE
BLADES AND ALL MOVING PARTS
HAVE COMPLETEL Y STOPPED. RE-
MO VE THE IGNITI ON KEY , DISCON-
NECT
THE SPARK PLUG WIRE(S) FROM
THE SPARK PLUG( S) AND KEEP WIRE(S)
AWAY FROM TH E PLUG(S) TO PRE·
VENT INJURY FROM ACCIDENTAL
STARTING .
When grinding, care should be taken to maintain blade balance
and the blade should
be checked for proper balance before re·
installation on mower. Unbalanced or b en t blade will cause ex·
cessive vibration when running, and eventual damage to mower
or engine. Replace bent or damaged bl ades.
To insure satisfactory opera ti on, it is recommended that be·
fore the start of e ach mowing season , the old blades be dis-
carded and replaced with new bl ades. Mower blades can be
purchased at al l Sears retail stores and mail order outlets.
BLADE REPLACEMENT
It is not necessary to remove mower from tractor for blade re·
placement. Raising mower l ift lever to highest position will
pe r mit access to bl ades.
1. Remove the two Hex Head Bolts and Lockwashers (Fig.
16) .
2. Install new blade with SHARP EDGE DOWN and secure
w
ith two Lockwashers and two Hex H ead Bolts. TIGHT ·
EN SECURELY .
ALWAYS USE GRADE 5 HEAT TREATED
BOLTS TO ATT ACH BLADES . CHECK
BOLTS IN
BLADE S OCC ASIONALLY TO
MAKE SURE BOLT S ARE TIGHT . TOR·
QUE BOLTS 45 ·5 0 FT. L BS.
A GRADE 5 HEAT TREATED BOLT
CAN BE IDENTIFIED BY THRE E
LI NES IN DICATED ON THE BOLT
HEAD AS SHOWN AT LEFT.
CLEANING MOWER
DISCONNECT SPARK PLUG WIRE (S) TO
PR EV ENT ACCIDENTAL STARTIN G BE ·
FORE CLEANING.
Water pressu re from a garden ho se will remove f resh cl ippi ngs
from underside of mower. Clean mow er after each mo wi ng . _7 _
IDLER
SHAFT
ASSEMBL Y
FIGURE 16
FIGURE 17
DAILY MAl NTENANCE
Make sure all nuts on bo lts are tight, cotter pi ns and retainer
springs are secure.
Kee p blades sharp. Observe all safety pre-
cau tions. Keep mower well lub ricated.
BELT ADJUSTMENT
Remove Retainer Spring from Adjusting Pin and remove
Adjusting Pin
from Idler Sh aft A ssemb ly ( Fi g. 17).
(Refer
to F ig. 18). Remove Retainer Spring from Adjusting
Pin
on Snubber Pull Rod in Idler Shaft Assembly. Remove Ad·
justing Pin from holt!.
(Refer to Fig. 17). Turn Adjusting Pin on Belt Tightener Link
counterclockw ise to tighten belt, clockwise to loosen belt.
Engage ("ON" position) mower clutch contro l (pushed for·
ward). Belt is properly adjusted when belt can be squeezed
together
with thumb and fore finger (wi thout undue pressure)
midway between e
ng i ne and idler pulleys. After 2 hour s use
recheck belt for proper tension. Replace retainer spring in
Adjusting Pin (Fig. 17 ).
Be lt from center to outside mandrels is spring loaded and no
adjustment is necessary.
AT THIS TIM E YOU MUST ADJUST THE
SNUBBER PULL RO D. FOLLOW THE IN·
FORMA
TION UNDER " ADJUSTMENT OF
SN UBB ER" ON PAGE 8.
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RETAINER cf IDLER
SPRING -..... SHAFT
ASSEMBLY
FIGURE 18
BELT GUIDE
UPPER ""'~;=:~:t,\
CENTER
MANDREl:
SHEAVE
BELT
GUIDE
NUTS
FIGURE 19
ENGINE--~~~'
PULLEY
-.,
- .... ~
;, . • ~:._;, -: .- -· - ~ < !!!':: ;~-~~':;·~~~~
..
... < ~
' TC">:>'\. _./
~~
. 8-
ADJUSTMENT OF SNUBBER
(BRAKE FOR MANDRELS)
After belt has been proper ly adjusted, adjust Adjusting Pin on
Snubber Pull Rod as stated below:
Place Mower Clutch Control in "OFF" pos ition (Fig. 7A or
7B).
Remove Retainer Spring holding Adjusting Pin on Snubber
Pull Rod in Idler Shaft Assembly. Remove Adjusting Pin
from hole. With the Mower Clutch Control in the "OFF"
position, turn Adjusting Pin on Snubber Pull Rod until
Adjusting Pin will fit freely in hole of Idler Shaft Assembly.
Remove Adjusting Pin
from ho le . Turn Adjusting Pin coun-
terclockwise 6 complete turns and repla ce Washer on Pin
against shoulder. Reinsert
Pi n with Washer in hole of Idler
Sh aft Ass embly. NOTE: Mower Clutch Control ca n be pulled
ahead to assemble. Secure with Retainer Spring.
Mower Blades should stop within seven (7) seconds after
Clutch is disengaged.
MAKE SURE THAT BRAKE IS NOT
AGAINST MANDREL PULLEY WHEN
MOWER IS ENGAGED (LEVER OR
PEDAL PUSHED FORWARD).
If Snubber Pu ll Rod is ever removed, be sure it is r eassem bled
with slight bend in Rod downward and under the mower drive
belt. Refer
to Fi g. 9, page 4.
BELT REPLACEMENT
MOWER MAIN DRIVE BELT
1. Unhook Spring from rear belt guide bracket of Belt Guide
(Fig. 19).
2. Remove Belt Guide
at center mandrel by removing three (3)
Nuts and Lockwashers.
3. Remove
Nut and Lockwasher from Idler Shaft Assembly
and remove Belt Guide (Fig.
19A). Also remove Engine
Belt Guard and Belt (Fig. 18).
4. Install new Belt on Center Mandrel first, then on Idler
Sheaves and on Engine Pulley. NOTE: See Fi g. 19A for
proper way of installing Belts on Idler Sheaves. Backside
(outside)
of Belt must be placed in flat (outside) Idler. Belt
must
be placed in largest groove of Eng ine Pulley. Replace
Belt Guide securely.
5. Replace Engine Belt Guard (Fig. 18).
6. 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 Sheav e. Replace Sp ring (Fig. 19). Adjust drive
belt and snubber refer to page 4, steps 1 t hr u 8.
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