Craftsman 247.37108 User Manual

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Operator's Manual

PRO E S S I 0 N A

21" SELF=PROPELLED MOWER

Model No. 247.37108

CAUTION: Before using

this product, read this

manual and follow all

safety rules and operating

instructions.

o SAFETY

ASSEMBLY

OPERATION

MAINTENANCE

PARTS LIST

o ESPANOL, p. 37

Sears Brands Management Corporation, Hoffman Estates, IL 60179, U.S.A.

Visit our website: www.craftsman.com FORMNO.769-05501

1/5/2010

Table of Contents

Questions and Answers:

J
James JohnsonAug 15, 2025
Why does my Craftsman 247.37108 engine fail to start?
- J
  Jessica BondAug 15, 2025
  Your Craftsman Lawn Mower engine might fail to start due to several reasons: the blade control may be disengaged (engage it); the spark plug boot may be disconnected (connect it); the fuel tank may be empty or contain stale fuel (fill it with clean, fresh gasoline); the spark plug may be faulty (clean, adjust the gap, or replace it); the engine may be flooded (wait a few minutes before restarting). For a blocked fuel line, contact your Sears Parts & Repair Center to have it cleaned.
L
Lisa LawsonAug 18, 2025
What to do if Craftsman 247.37108 Lawn Mower engine overheats?
- J
  Joseph HardyAug 18, 2025
  If your Craftsman Lawn Mower engine overheats, it could be due to a low engine oil level (fill the crankcase with the proper oil) or restricted airflow (clean the area around and on top of the engine).
J
James WeaverAug 22, 2025
Why Craftsman 247.37108 Lawn Mower will not mulch grass?
- L
  lutzstephenAug 22, 2025
  If your Craftsman Lawn Mower won't mulch grass, it may be due to wet grass (do not mow when grass is wet; wait until later to cut), excessively high grass (mow once at a high cutting height, then mow again at desired height or make a narrower cutting path), or a dull blade (sharpen or replace the blade).
S
Shannon JonesAug 25, 2025
Why Craftsman Lawn Mower has an uneven cut?
- C
  Charles JacobsAug 25, 2025
  An uneven cut with your Craftsman Lawn Mower is likely due to a dull blade. Sharpen or replace the blade.
N
Nicole LambertAug 28, 2025
What to do if Craftsman 247.37108 Lawn Mower idles poorly?
- M
  Mary MayoAug 28, 2025
  If your Craftsman Lawn Mower idles poorly, it could be due to a spark plug that is fouled, faulty, or has a gap that is too wide (reset the gap to .020” or replace the spark plug). If the air cleaner is dirty, refer to the Air Cleaner section in the Engine Maintenance section.
J
Jennifer MillerAug 31, 2025
Why Craftsman 247.37108 Lawn Mower will not self propel?
- J
  Jeffrey KimAug 31, 2025
  If your Craftsman Lawn Mower will not self propel, it might be because the belt is not installed properly (check the belt for proper pulley installation and movement) or debris is clogging the drive operation (stop the engine, disconnect the spark plug boot, and clean out the debris). For a damaged or worn belt, contact your Sears Service Center.
J
Jennifer SotoSep 3, 2025
Why does my Craftsman 247.37108 engine run erratically?
- Q
  qmoodySep 3, 2025
  An erratic running engine in your Craftsman Lawn Mower can be caused by a loose spark plug boot (connect and tighten it), stale fuel (fill the tank with fresh gasoline), a plugged vent in the gas cap (clear the vent), or water/dirt in the fuel system (run the engine until it stops from lack of fuel, then refill with fresh fuel). For a blocked fuel line, contact your Sears Parts & Repair Center to have it cleaned. If the air cleaner is dirty, refer to the Air Cleaner section in the Engine Maintenance section.
D
David DavidsonSep 7, 2025
Why Craftsman Lawn Mower has excessive vibration?
- B
  Bryan MillerSep 7, 2025
  Excessive vibration in your Craftsman Lawn Mower may be due to a loose or unbalanced cutting blade (tighten the blade and adapter, and balance the blade) or a bent cutting blade (replace the blade).

Craftsman 247.37108 Specifications

General

Engine Type	4-cycle
Engine	Briggs & Stratton
Engine Displacement	140cc
Cutting Width	21 inches
Cutting Height Positions	6
Starting System	Recoil
Drive Type	Self-propelled
Speed Settings	Variable
Grass Bag Capacity	1.9 bushels
Cutting Height	1.25-3.75 inches
Drive System	Rear-wheel drive
Discharge Options	Side, Rear, Mulch
Wheel Size	8 inches front, 11 inches rear

Summary

WARRANTY INFORMATION

SAFETY INSTRUCTIONS

GENERAL OPERATION GUIDELINES

SLOPE OPERATION SAFETY

Precautions and guidelines for safe mowing on inclines and slopes.

CHILD SAFETY AND SUPERVISION

Instructions to ensure children's safety around the mower.

ASSEMBLY AND SETUP

OPERATING YOUR MOWER

MOWER CONTROLS AND STARTING

Explanation of blade control, recoil starter, and engine start procedures.

FUEL AND OIL MANAGEMENT

Guidance on filling the fuel tank and checking engine oil levels.

SERVICE AND MAINTENANCE

PERIODIC MAINTENANCE SCHEDULE

Recommended service intervals for engine, filters, and general upkeep.

ENGINE MAINTENANCE PROCEDURES

OFF-SEASON STORAGE

TROUBLESHOOTING GUIDE

PARTS LIST AND DIAGRAMS

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