Murray M26-T Instruction Manual page 27

Troubleshooting
Insufficient power (Cont)
Engine makes knocking noise
Poor acceleration
Fuel system clogged
Air leakage
Engine stops during
operation
Engine stops abruptly
Miscellaneous
Engine is difficult to shut off
Overheating or electrical fault
Unit main body
Irregular vibration or trimmer head
spins with engine idling
If running difficulties continue, contact your closest Authorised Service Centre
TROUBLESHOOTING
Possible cause
Improper fuel mixing ratio
Machine is overworked
Fan cover, cylinder fins, etc. dirty
Cylinder overheating
Use of incorrect fuel
Fuel filter clogged
Excessively low idle
Excessively lean carburettor
setting
Clogged air filter
Loose carburettor
Loose fuel pick up tube
Switch is bumped
Shorting of spark plug
Piston scored, ignition failure
Fuel tank empty
Carburettor or fuel tank clogged
Overheated engine
Overheated spark plug
Defective kill switch
Poor contact of ground wire
Loose trimmer head
Broken clutch spring, bent main
shaft
Worn shaft bearings
Loose gear head
Remedy
Replace with correct 25:1 fuel mix
Operate properly – do not overload
Clean and remove dirt and debris
Clean fins
Replace with correct fuel
Contact Service Centre
Speed up idle/Contact Service
Centre
Contact Service Centre
Clean filter
Contact Service Centre
Insert firmly/Contact Service Centre
Keep hands clear of switch
Clean spark plug
Contact Service Centre
Refuel
Contact Service Centre
Run at idle
Clean and adjust gap to 0.7mm
(0.25")
Contact Service Centre
Contact Service Centre
Tighten firmly
Contact Service Centre
Contact Service Centre
Tighten bolt securely/Contact Service
Centre
27