Ryobi RY70101A - Manual (Page 15)

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1
“H” HIGH
NEEDLE
PROBLEM PROBLEM PROBLEM PROBLEM PROBLEM POSSIBLE CAUSE POSSIBLE CAUSE POSSIBLE CAUSE POSSIBLE CAUSE POSSIBLE CAUSE SOLUTION SOLUTION SOLUTION SOLUTION SOLUTION
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORISED SERVICE DEALER.
TROUBLESHOOTING
1. Cut tall grass from the top down.
2. Operate trimmer at full throttle.
Clean threads and lubricate with grease - if no
improvement, replace spool retainer.
1. Operate trimmer at full throttle.
2. Use fresh fuel and the correct 2-cycle oil mix.
3. Clean air filter. Refer to “Replacing and
Cleaning the Air Filter” earlier in this manual.
4. Turn “H” needle clockwise 1/16 - 1/8 turn.
See Figure 18.
Grass wraps round drive shaft
housing and string head:
Spool retainer hard to turn:
Oil drips from silencer:
1. Cutting tall grass at ground level.
2. Operating trimmer at part throttle.
Screw threads dirty or damaged.
1. Operating trimmer at part throttle.
2. Check oil/fuel mixture.
3. Air filter dirty.
4. Carburettor requires adjustment.
NOTE: The carburettor adjustment needle(s) are equipped with plastic
cap(s) which prevent anticlockwise rotation from the original factory
adjustment. If your unit exhibits specific performance problem(s)
where the Trouble Shooting Section recommends an anticlockwise
needle adjustment and no adjustments have been made since original
purchase, the unit should be taken to a factory-authorised service
dealer for repair. In most cases, the needed adjustment is a simple
task for the factory-trained service representative.
Fig. 18
“L” LO
NEEDLE
IDLE SPEED
SCREW