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The operation of any lawn
mower can result in foreign
objects thrown into the
eyes, which can result in
severe eye damage. Always
wear safety glasses or eye shields while
operating your lawn mower or performing
any ad just ments or repairs. We recom-
mend standard safety glasses or a wide
vision safety mask worn over spectacles.
HOW TO USE YOUR LAWN MOWER
ENGINE SPEED
The engine speed was set at the factory
for optimum per for mance. Speed is not
adjustable.
ENGINE ZONE CONTROL
CAUTION: Federal reg u la tions require
an engine control to be installed on this
lawn mower in order to minimize the
risk of blade contact injury. Do not un der
any cir cum stanc es attempt to de feat the
function of the operator con trol. The blade
turns when the engine is running.
• Your lawn mower is equipped with an
operator pres ence control bar which
requires the operator to be positioned
behind the lawn mower handle to start
and operate the lawn mower.
TO ADJUST CUTTING HEIGHT
Raise wheels for low cut and lower wheels
for high cut, adjust cutting height to suit
your requirements. Me di um position is
best for most lawns.
•
To change cutting height, squeeze ad-
juster lever to ward wheel. Move wheel
up or down to suit your re quire ments.
Be sure all wheels are in the same set-
ting.
NOTE: Adjuster is properly positioned
when plate tab inserts into hole in lever.
Also, 9-position adjusters (if so equipped)
allow lever to be positioned between the
plate tabs.
LEVER BACKWARD
Lever
TO LOWER MOWER
LEVER FORWARD TO RAISE MOWER
TO CONVERT TO DIS CHARG ING
MOWER
Your mower is shipped ready to be used
as a mulcher. To convert to bagging or
discharging:
• Lift discharge guard and remove
mulcher plate.
• Mower can now be used for side dis-
charge or optional grass catcher can be
attached.
• To return to mulching operation, sim ply
reinstall mulcher plate as shown.
CAUTION: Do not run your lawn mower
with out discharge guard, ap proved grass
catcher or mulcher plate in place.
Discharge
guard
Housing
Hooks
opening
Mulch plate
Tab
Hinge rod
Plate
tab
6
CRAFTSMAN 4-CYCLE ENGINE
KEY PART
NO.
NO.
DESCRIPTION
1
37791
Cylinder (Includes Key #2 and 20)
2
26727
Dowel Pin
6
33734
Breather Element
7
36557
Breather Assembly
(Includes Key Numbers 6 and 12A)
12
32447
Breather Tube
12A
36558
Breather Cover & Tube
12B
36694
Breather Tube Elbow
14
28277
Washer
15
30589
Governor Rod (Includes Key #14)
16
34839A
Governor Lever
17
31335
Governor Lever Clamp
18
651018
Screw, T-15 #8-32 x 19/64"
19
33578
Extension Spring
20
32600
Oil Seal
30
37804
Crankshaft
40
40053
Piston, Pin & Ring Set (Standard)
41
40051
Piston & Pin Asssembly (Standard)
(Includes Key Number 43)
42
40022
Ring Set (Standard)
43
20381
Piston Pin Retaining Ring
45
30963B
Connecting Rod Assembly
(Includes Key Number 46)
46
32610A
Connecting Rod Bolt
48
27241
Valve Lifter
50
37575
Camshaft (NCR)
(Includes Key Number 104)
52
29914
Oil Pump Assembly
69
37609
* Mounting Flange Gasket
70
37608
Mounting Flange (Includes Key
#72 thru 83, 306, 309A and 311A)
72
37614
Oil Drain Plug
72A
28534
Oil Drain Plug
75
27897
Oil Seal
80
30574A
Governor Shaft
81
30590A
Washer
82
30591
Governor Gear Assembly
(Includes Key Number 81)
83
30588A
Governor Spool
86
650488
Screw 1/4-20 x 1-1/4"
89
611298
Flywheel Key
90
611299
Flywheel
92
650815
Belleville Washer
93
650816
Flywheel Nut
100
34443C
Solid State Ignition
101
610118
Spark Plug Cover
103
651007
Screw, T-15 #10-24 x 15/16"
104
37480
Cam Bushing
110
37047
Ground Wire
119
37755
* Cylinder Head Gasket
120
37807
Cylinder Head
125
37806
Exhaust Valve (Standard Size)
(Includes Key Number 151)
126
37805
Intake Valve (Standard Size)
(Includes Key Number 151)
130
6021A
Screw 5/16-18 x 1-1/2"
135
35395
Resistor Spark Plug (RJ19LM)
150
31672
Valve Spring
151
31673
Valve Spring Cap
151A 40016A
Intake Valve Seal
169
36783
* Valve Cover Gasket
172
36784
Valve Cover
174
30200
Screw #10-24 x 9/16"
178
29752
Nut and Lock Washer 1/4-28
182
6201
Screw 1/4-28 x 7/8"
184
26756
* Gasket, Carburetor to Intake Pipe
MODEL NUMBER 143.044500
KEY PART
NO.
NO.
DESCRIPTION
185
37794
Intake Pipe
186
32653
Governor Link
189
650839
Screw 1/4-20 x 3/8"
191
36559A
S.E. Brake Bracket
(Includes Key Number 195)
195
610973
Terminal
207
34336A
Throttle Link
216
33086
R.P.M. Adjusting Lever
223
650451
Screw 1/4-20 x 1"
224
37793
* Intake Pipe Gasket
238
650932
Screw #10-32 x 49/64"
239
34338
* Air Cleaner Gasket
241
35797
Air Cleaner Collar
245
35066
Air Cleaner Filter
250
35065
Air Cleaner Cover (Craftsman)
260
36980B
Blower Housing
261
30200
Screw #10-24 x 9/16"
262
650831
Screw 1/4-20 x 1/2"
275
37498
Muffl er
275A 36838A
Spark Arrestor Muffl er (Optional)
(Includes Key Numbers
284, 284A, 416 and 417)
277
650988
Screw 1/4-20 x 2-5/16"
279
28763
Screw #10-32 x 39/64"
280
37717
Heat Shield
284
36663
Muffl er Defl ector (Optional)
(Includes Key Number 284A)
284A 650821
Screw #10-32 x 1/2" (Optional)
285
35000A
Starter Cup
287
650926
Screw #8-32 x 21/64"
290
29774
Fuel Line
292
26460
Fuel Line Clamp
298
28763
Screw #10-32 x 39/64"
300
36916
Fuel Tank (Includes Key #292, 301)
301
37844
Fuel Cap
305
35647A
Oil Fill Tube (Includes Key #306)
306
37610
"O" Ring
307
35499
"O" Ring
309
650562
Screw #10-32 x 1/2"
309A 650783
Screw #10-24 x 3/4"
310
35648
Dipstick
311A 37611
Hold Down Bracket
313
34080
Spacer
370
37269
Name Decal
370C 37318
Primer Decal (3X)
370K 36695
Starter Decal
370R 37849
Warning Decal
380
640339
Carburetor (Includes Key #184)
390
590737
Rewind Starter
400
37809
Gasket Set
(Includes All Items Marked * )
416
37530
Spark Arrestor Kit (Optional)
(Includes Key Number 417)
417
650821
Screw #10-32 x 1/2" (Optional)
900
750884
Replacement Engine
(order from 71-999)
900
750885
Replacement Short Block
(order from 71-999)
RPMs:
High 2900 to 3200
NOTE: This engine could have been built with
Recoil Starter #590694.
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
19
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