20
MODEL NUMBER 143.044500
CRAFTSMAN 4-CYCLE ENGINE
KEY PART
NO. NO. DESCRIPTION
- - 640339 Carburetor (Includes Key Number 184 of Engine Parts List)
1 631615 Throttle Shaft & Lever Assembly
2 631767 Throttle Return Spring
4 631184 * Dust Seal Washer
5 631183 * Dust Seal (Throttle)
6 640070 Throttle Shutter
7 650506 * Shutter Screw
16 631807 Fuel Fitting
17 651025 Throttle Crack / Idle Speed Screw
18 630766 Tension Spring
20 640016 Screw, Idle Restrictor
20A 640200 Cap, Idle Restrictor Screw (Black)
25 631867 Float Bowl
27 631024 * Float Shaft
28 632802 Float (Plastic)
29 631028 * Float Bowl “O” Ring
30 631021A * Inlet Needle, Seat and Clip (Includes Key Number 31)
31 631022 Spring Clip
35 640259 Primer Bulb / Retainer Ring
36 640080 Main Nozzle Tube
36A 632766 Carburetor Tube
37 632547 * “O” Ring, Main Nozzle Tube
40 640030 High Speed Bowl Nut
44 27110A * Bowl Nut Washer
47 630748 * Welch Plug, Idle Mixture Well
48 631027 * Welch Plug, Atmospheric Vent
60 632760B Repair Kit (Includes All Items Marked * )
5
OPERATION
KNOW YOUR LAWN MOWER
READ THIS OWNER'S MANUAL AND ALL SAFETY RULES BEFORE OPERATING
YOUR LAWN MOWER. Compare the illustrations with your lawn mower to familiarize
yourself with the location of various controls and adjustments. Save this manual for
future reference.
Starter
handle
Housing
Primer
Wheel adjuster (on each wheel)
Handle knob
Engine oil cap
with dipstick
Operator presence control bar
MEETS CPSC SAFETY REQUIREMENTS
Sears rotary walk-behind power lawn mowers conform to the safety standards of the
American National Standards Institute and the U.S. Consumer Product Safety Com-
mis sion. The blade turns when the engine is running.
Operator presence control bar –
must
be held down to the handle to start the
engine. Release to stop the engine.
Starter handle –
used for start ing en gine.
These symbols may appear on your lawn mower or in literature supplied with the
product. Learn and understand their meaning.
IMPORTANT:
This lawn mower is shipped WITHOUT OIL OR GASOLINE in the engine.
Primer –
pumps additional fuel from the
carburetor to the cylinder for use when
starting a cold engine.
Air fi lter
Muffl er
Discharge guard
Gasoline fi ller cap
