Craftsman EZ3 917.273021 User Manual

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Owner's Manual

CRnFTSM#i '

20.0 HP

ELECTRIC START

46" MOWER

AUTOMATIC

GARDEN TI CTOR

Model No.

917.273021

• Safety

• Assembly

• Operation

• Maintenance

• Repair Parts

CAUTION:

Read and followall o-

Safety Rules and Instructions

before operating this equip-

ment.

For answersto your questions

about this product,Call:

1-800-659-5917

Sears Craftsman Help Line

5 am- 5 pm, Mort- Sat

-Seam, Roebuck and Co., Hoffman Estates, IL 60179

Table of Contents

Questions and Answers:

O
ofreyAug 19, 2025
How to fix Craftsman Lawn Mower that will not start?
- J
  Joshua FrostAug 19, 2025
  If your Craftsman Lawn Mower won't start, there are several potential causes. First, check if the fuel tank is empty and refill it if needed. If there is enough fuel, ensure the engine is properly choked following the instructions in the Operation section. If the engine is flooded, wait a few minutes before trying again. Other possible causes include a bad spark plug (replace it), a dirty air filter (clean or replace it), a dirty fuel filter (replace it), or water in the fuel (drain the tank and carburetor, refill with fresh gasoline, and replace the fuel filter). Also, check for loose or damaged wiring. In some cases, the carburetor or engine valves may need adjustment, which may require professional assistance.
T
Timothy ReevesAug 25, 2025
What to do if my Craftsman EZ3 917.273021 is hard to start?
- J
  Jason RhodesAug 25, 2025
  If your Craftsman Lawn Mower is hard to start, consider these possible causes: a dirty air filter (clean or replace it), a bad spark plug (replace it), a weak or dead battery (recharge or replace it), a dirty fuel filter (replace it), or stale or dirty fuel (drain the tank and refill with fresh gasoline). Also, check for loose or damaged wiring. In some cases, the carburetor or engine valves may need adjustment.
D
Dana JohnsonAug 26, 2025
Why won't the engine turn over on my Craftsman EZ3 917.273021?
- J
  jmaldonadoAug 26, 2025
  If the engine on your Craftsman Lawn Mower won't turn over, start by ensuring the clutch/brake pedal is fully depressed and the attachment clutch is disengaged. A weak or dead battery can also prevent the engine from turning over, so recharge or replace the battery. Check for a blown fuse and replace it if necessary. Clean any corrosion from the battery terminals. Inspect all wiring for looseness or damage. A faulty ignition switch, solenoid, or starter could also be the cause; check and replace them as needed.
S
solomonrebeccaAug 28, 2025
Why is the cut poor and uneven with my Craftsman EZ3 917.273021?
- C
  Catherine HayesAug 28, 2025
  An uneven cut with your Craftsman Lawn Mower can be due to a worn, bent, or loose blade; replace the blade and tighten the blade bolt. The mower deck might not be level, so level it. Check for any buildup of grass, leaves, and trash under the mower and clean it. A bent blade mandrel could also be the cause, so replace it. Additionally, check for clogged mower deck vent holes and clean around the mandrels to open them.
T
Taylor MorrisAug 30, 2025
What to do if the battery will not charge on my Craftsman EZ3 917.273021?
- J
  Julie FischerAug 30, 2025
  If the battery on your Craftsman Lawn Mower isn't charging, it could be due to bad battery cells, so replace the battery. Check and clean all cable connections to ensure they are secure. A faulty regulator or alternator could also be the cause, so replace them if necessary.
R
Rebecca MartinezSep 1, 2025
Why does the Craftsman EZ3 917.273021 Lawn Mower engine backfire when turning engine 'OFF'?
- N
  Nathan PetersSep 1, 2025
  If your Craftsman Lawn Mower engine backfires when turning it off, it's likely because the engine throttle control isn't set at the 'SLOW' position. Move the throttle control to 'SLOW' and allow the engine to idle for 30 seconds before stopping it.
E
Elizabeth JohnsonSep 5, 2025
What to do if Craftsman EZ3 917.273021 Lawn Mower engine clicks but will not start?
- N
  Natalie MooreSep 5, 2025
  If your Craftsman Lawn Mower engine clicks but doesn't start, it could be due to a weak or dead battery; try recharging or replacing it. Also, check for corroded battery terminals and clean them. Inspect the wiring for any loose connections or damage. A faulty solenoid or starter might also be the problem, so check and replace them if necessary.
J
John DuarteSep 8, 2025
Why is there excessive vibration in my Craftsman EZ3 917.273021?
- M
  Marco BrownSep 8, 2025
  Excessive vibration in your Craftsman Lawn Mower can be caused by a worn, bent, or loose blade; replace the blade. A bent blade mandrel can also cause vibration, so replace it as needed. Additionally, check for any loose or damaged parts and tighten or replace them.
B
Brandon MooreSep 10, 2025
What to do if the headlight(s) are not working on my Craftsman EZ3 917.273021 Lawn Mower?
- J
  Joel ReyesSep 10, 2025
  If the headlights on your Craftsman Lawn Mower aren't working, first make sure the switch is turned 'ON'. If that doesn't solve the problem, check if the bulb(s) have burned out and replace them if necessary. A faulty light switch could also be the cause, so check and replace it. Inspect the wiring and connections for any looseness or damage. Finally, check for a blown fuse and replace it if needed.

Craftsman EZ3 917.273021 Specifications

General

Brand	Craftsman
Model	EZ3 917.273021
Category	Lawn Mower
Language	English

Summary

CAUTION: Safety Instructions Prior to Operation

WARRANTY

Two Year Limited Warranty

Details the two-year warranty coverage for riding equipment.

90 Day Limited Battery Warranty

Outlines the 90-day warranty coverage for the included battery.

SAFETY RULES

ASSEMBLY

Tools and Preparation

Initial Setup Tasks

Covers battery, seat, tire pressure, and brake system setup.

Mower Deck Installation

Detailed steps for installing the mower deck and drive belt.

OPERATION

Symbols and Control Identification

Explains tractor symbols and identifies all controls.

Understanding Tractor Controls

Details the function and use of each tractor control.

Tractor Operation Procedures

Explains how to drive, adjust height, stop, and use controls.

Pre-Operation Checks and Starting

Covers oil check, fueling, and engine starting procedures.

MAINTENANCE

Maintenance Schedule and Recommendations

Outlines schedule, general advice, and lubrication for maintenance.

SERVICE AND ADJUSTMENTS

Service Safety Precautions

Mower Removal and Installation

Leveling the Mower Housing

Instructions for adjusting mower deck side-to-side and front-to-back.

Replacing the Mower Drive Belt

Adjusting Tractor Controls and Alignment

Covers clutch, brake, motion control, steering, and toe-in adjustments.

ELECTRICAL AND ENGINE SERVICE

Engine Control Adjustments

ENGINE ADJUSTMENTS

Carburetor Adjustment

Covers preliminary and final settings for fuel mixture.

STORAGE

Tractor Storage Preparation

Engine Fuel System and Oil

TROUBLESHOOTING

Engine Starting Problems

Covers issues like not starting, hard starting, or engine not turning over.

Performance and Cutting Issues

Addresses loss of power, vibration, poor cut, and blade problems.

Drive and Battery Charging Problems

ELECTRICAL SCHEMATIC

Tractor Wiring Diagram

REPAIR PARTS

STEERING ASSEMBLY

ENGINE COMPONENTS

Ignition and Electrical System

Cylinder Head, Valve, and Breather Parts

Engine Controls Parts

Engine Fuel System Components

MOWER DECK

Mower Deck Components

Lists all parts comprising the mower deck assembly.

TRANSAXLE

Transaxle Components

Slope Operation Safety Guide

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