with tension. The spool splitter will separate the
two halves of the nylon line (Fig. L5)
6. Hook the last 15 cm of the two ends of the line to
the line holders opposite the line spool (Fig. L6)
7. Thread the two ends of the line through the metal
eyelets in the line spool housing (Fig. L3).
8. Press the line spool into the line spool housing.
Ensure that the spring and washers are in the
correct position (Fig. L3)
9. Press the line spool cover on to the line spool
housing. Ensure that the two lugs (Fig. L2/Item 1)
in the line spool housing lock into the appropriate
recesses (Fig. L2/Item 2) in the line spool cover.
10. Pull the two line ends briefly and powerfully to
release them from the line holders in the line
spool.
11. Cut the excess line to a length of around 13 cm.
This will reduce the load on the engine when
starting up and warming up.
12. Fit the line spool again. See point 6.4.
If you are replacing the complete line spool, ignore
points 3 – 6.
9.2 Maintenance of the air filter (Fig. J1-J3)
Soiled air filters reduce the engine output by supply
too little air to the carburetor.
Regular checks are therefore essential. The air filter
should be checked after every 25 hours of use and
cleaned if necessary. If the air contains a lot of dust,
the air filter should be checked more frequently.
1. Remove the air filter cover (Fig. J1-J2)
2. Remove the filter element (Fig. J3)
3. Clean the filter element by tapping it or blowing
it.
4. Assemble in reverse order.
Please note: Never clean the air filter with petrol or
inflammable solvents. Clean the air filter with
compressed air or by tapping it.
9.3 Maintenance of the spark plug (Fig. K1-K2)
Spark plug gap = 0.025 inch (0.635 mm). Tighten the
spark plug with a torque of 12-15 Nm.
Check the spark plug for dirt and grime after 10
hours of operation and if necessary clean it with a
copper wire brush. Thereafter service the spark plug
after every 50 hours of operation.
1. Remove the spark plug cover (Fig. K1)
2. Pull off the spark plug boot (Fig. K2) by twisting.
3. Remove the spark plug (Fig. K2) with the
supplied spark plug wrench.
4. Assemble in reverse order.
9.4 Grinding the safety hood blade
The safety hood blade (Fig. F6/Item A) can become
blunt over time. When you notice this, undo the two
screws holding the safety hood blade to the safety
hood. Clamp the blade in a vice. Sharpen the blade
with a flat file and make sure that the angle of the
cutting edge is not altered in the process. File in one
direction only.
9.5 Carburetor settings
Important. Settings on the carburetor may only be
made by authorized customer service personnel.
The air filter cover must be removed before any work
on the carburetor, as shown in Figures J1-J2.
Setting the throttle cable:
If the maximum speed of the machine falls over time
and you have ruled our all the other causes listed in
section 13 Troubleshooting, it may be necessary to
adjust the throttle cable.
First of all check whether the carburetor opens fully
when the throttle handle is pressed fully. This is the
case if the carburetor slide (Fig. Q1/Item 1) rests
against the stop (Fig. Q1/Item 2) when the throttle is
fully open. Figure Q1 shows the correct setting. If the
carburetor slide does not touch the stop, it must be
adjusted.
The following work is required to adjust the throttle
cable:
Undo the lock nut (Fig. Q2/Item 3) a few turns.
Undo the adjusting screw (Fig. Q3/Item 4) until
the carburetor slide rests against the stop when
the throttle is fully open, as shown in Figure Q1.
Retighten the lock nut.
Setting the idling speed:
Important. Set the idling speed when the machine is
warm.
If the engine stalls when the throttle is not pressed
and you have ruled out all the other causes listed in
section 13 Troubleshooting, the idling speed must be
adjusted. To do this turn the idling speed screw (Fig.
Q4/Item 5) clockwise until the machine runs
smoothly at idling speed.
If the idling speed is so fast that the cutting tool turns
as well, it has to be reduced by turning the idling
speed screw counter-clockwise (Fig. O4/ Item 5) for
as long as is required for the cutting tool to stop
turning as well.
10. Storage
Please note: If you fail to follow these instructions
correctly, deposits may form on the interior of the
carburetor which may result in the engine being more
difficult to start or the machine suffering permanent
GB
16
Helpline No: UK 0151 649 1500 / IRE 189 094 6244
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