John Deere

OMGC00313

Issue I8

21-Inch Walk Behind Rotary Motor

JX75

Serial No. ( 030001 - )

JE75

Serial No. (020001 - )

Introduction

Safety Signs

Controls

Operating

Lawn Care

Replacement Parts

Service Machine Safely

Service

Troubleshooting

Using Troubleshooting Chart

Storing Machine

Assembly

Specifications

Warranty

John Deere Quality Statement

All Manuals Close Window

Troubleshooting


Using Troubleshooting Chart

If you are experiencing a problem that is not listed in this chart, see your John Deere dealer for service.

When you have checked all the possible causes listed and you are still experiencing the problem, see your John Deere dealer.

IF

CHECK

Engine Will Not Start

Fuel shutoff knob not in OPEN position.

Fuel tank is empty.

Stale or dirty fuel.

Disconnected or dirty spark plug.

Throttle should be in choke position if the engine is cold.

Battery needs to be charged or replaced (JE75).

Engine Starts Hard Or Loses Power

Dirty fuel tank cap vents.

Stale or dirty fuel.

Dirty air cleaner element.

Disconnected or dirty spark plug.

Throttle should be in choke position if the engine is cold.

Engine Runs Rough

Carburetor needs to be cleaned.

Disconnected or dirty spark plug.

Throttle lever not in fast position.

Dirty cooling fins.

Engine Runs Rough

Dirty air cleaner paper or foam element.

Engine Overheats

Dirty blower housing and cooling fins.

Oil level too low.

Engine Vibrates Too Much

Loose blade bolt.

Blade dull or not balanced.

Mower Pushes Or Pulls Hard

Rear axle not lubricated.

Traction clutch needs adjustment.

Mower Mows Unevenly

Pushing mower too fast.

Mowing too fast around corners and mowing pattern not changed.

Wheel levers not adjusted in the same position.

Blade dull or not balanced.

Discharge Chute Plugs

Grass not dry.

Cutting height not raised high enough.

Dirty or full grass bag.

Mowing too fast.

Engine not in full throttle position.

Mower Jerks Or Will Not Self-propel

Traction belt broken.

Traction clutch not adjusted.

Dirty transmission.

Gear shift lever not in 1st or 2nd gear.

Mulched Grass Appearance Is Poor: Clumps, Excessive Clippings, Rough Cut, Etc.

Grass not dry.

Mowing too fast.

Engine not in full throttle position.

Blade dull or not balanced.

Cutting height set too low.