SO53 3LE
Customer Helpline 0845 600 5526 Monday to Friday 09.00 to 17.00
www.JCBdiy.com
Engine does not
reach full speed
and emits excessive
smoke.
Improper mixing of oil/
fuel.
Use fresh fuel and the correct
2-stroke oil mix.
Air filter is dirty.
Clean the air filter. Refer to “Cleaning
the Air Filter Screen” in the manual.
Spark arrestor screen is
dirty.
Contact a service dealer.
Engine starts, runs
and accelerates, but
will not idle.
Idle speed screw on
carburetor requires
adjustment.
Turn idle speed screw clockwise
to increase idle speed (See
Figure 13).
Ensure that after adjustment, the
cutting head does not rotate at
idle speed.
Contact a service dealer if the
problem persists.
Grass wraps around
shaft housing and
string head.
Cutting tall grass at
ground level.
Cut tall grass from top down.
Operating trimmer at
part throttle.
Operate trimmer at full throttle.
Knob hard to turn.
Screw threads dirty or
damaged.
Clean threads and lubricate with
grease; if no improvement, replace
knob.
Oil drips from
silencer.
Operating trimmer at
part throttle.
Operate trimmer at full throttle.
Improper mixing of oil/
fuel.
Use fresh fuel and the correct
synthetic 2-stroke oil mix.
Air filter dirty.
Clean the air filer. Refer to “Cleaning
the Air Filter Screen” in the manual.
Note:
If the unit exhibits specific performance problem(s) where the Problem Solving
section recommends a clockwise screw adjustment on the carburetor, but no adjust-
ments have been made since the original purchase, the unit should be taken to an
authorised service centre for repair. In most cases, the needed adjustment is a simple
task for the trained service representative.
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