Where can I find basic troubleshooting information for walk-behind lawn mowers?



General

NOTE: Before attempting any of the following repairs, shut off engine and disconnect spark plug.

Complaint Possible Cause Correction
Excessive vibration

Blade is loose

Blade is unbalanced
 

Bent blade

Engine mounting bolt   loose or missing
 

Bent or broken crankshaft

Tighten blade (see Operator's  Manual)

Balance blade (see Operator's Manual or Murray Service Dealer)

Replace blade (see Operator's Manual)

Tighten or replace bolt  (see Operator's  Manual)


Take mower to a Murray Service  Dealer)

Uneven cut

Height adjusters are  not set correctly

Dull blade
 

Bent blade

Place all four wheels in same  height position
 

Sharpen and balance blade  (see Operator's Manual)

Replace blade (see Operator's  Manual)

Unit does not shut off when stop lever is released

Damaged stop  cable

Damaged stop  cable

Replace cable (see Operator's Manual)

Replace stop lever (see Murray  Service Dealer)

Self-Propelled Walk-Behind Mowers 

NOTE: Before attempting any of the following repairs, shut off engine and disconnect spark plug.

Complaint Possible Cause Correction
Unit fails to drive when lever is engaged

Cable out of adjustment

Cable damaged
 

Belt worn or damaged

Belt not routed correctly

*Adjust cable (see Operator's Manual)
 

Replace cable (see Operator's  Manual or Murray Service Dealer)

Replace belt (see Operator's Manual)


Re-route belt (see Operator's Manual)

Drive will not disengage

Incorrect belt tension
 

Incorrect cable tension

**Adjust belt tension (see Operator's  Manual)


 *Adjust cable tension (see Operator's Manual or Murray Service Dealer)
 
Noisy drive system

Caused by debris
 

Damaged wheels
 

Bent height   adjusters

Remove debris from drive components (see Operator's Manual)

Replace wheels (see Operator's Manual or Murray Service Dealer)

Replace height adjusters (see Operator's Manual or Murray Service Dealer)

* Not all models have a cable adjustment. Replace cable if there is no cable adjustment.

** Not all models have a belt adjustment. Replace belt if there is no belt adjustment.

 

Please read and abide by any applicable Safety Information contained in your product Operator's Manual. The material provided above is not intended to replace work performed by a Murray Authorized DealerTerms of Use apply to all of the information presented on this website. Always be sure to completely read and understand your product Operator's Manual.