The Handy THMC, Owner'S Manual

Page

17

TROUBLE

SHOOTING

PROBLEM POSSIBLE 

CAUSE 

SOLUTION 

Power loss or sudden 

stopping. 

1.  Fuel Tank is empty. 

2.  Mixture not reaching 

carburettor. 

3.  Water in the mixture. 

4.  The air filter is dirty. 

5.  Carbon deposits in 

cylinder, exhaust pipe 

or muffler. 

1. Add 

fuel. 

2.  Drain and rinse out fuel 

system. 

3.  Clean fuel filter. 

4.  Clean air filter. 

5.  Clean all affected parts 

or change muffler. 

Engine runs but blade will 

not turn. 

Possible clutch failure. 

Take to authorised repair 

agent, your service dealer or 

call customer services on 

01793 333212. 

Unit is smoking. 

Incorrect fuel/oil ratio. 

Use 25 parts fuel to 1 part 

mineral oil. For synthetic oils 

use the manufacturer's ratio. 

Line will not advance when 

restarting engine. 

1.  Line is welded to itself. 

2.  Not enough line on 

spool. 

3.  Line has worn too 

short. 

4.  Line is tangled on 

spool. 

1.  Lubricate with silicone 

spray. 

2.  Add more line. 

3.  Pull lines alternately 

pressing down on and 

releasing bump button. 

4.  Remove line from spool 

and rewind.  

Trimmer head is hard to turn.  Grass wrapped or build up 

around the head. 

Clean affected parts. 

Grass wraps round 

attachment shaft and head 

assembly. 

Cutting tall grass at ground 

level. 

Cut tall grass from the top 

down. 

It is hard to cut branches or 

blade smoking. 

1.  No lubrication on the 

blade. 

2.  Blade is blunt. 

1.  Lubricate after each 

use with oil or spray 

lubricant. 

2.  Take to authorised 

repair agent or your 

service dealer to 

change the blade. 

Pruner chain does not turn.  Chain too tight. 

Check the tension of chain 

and adjust accordingly (see 

page 14). 

Idle is lumpy. 

Idler screw not positioned 

correctly. 

Adjust idler screw on the 

carburettor. Tighten screw, 

then loosen it 1 and 1/4 turns 

for optimum performance.