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Power works STF401 - Replace the Bump Knob; Assemble the Trimmer Head; Replace the Cutting Line; Replace the Spool

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Move the machine from right to left to prevent thrown
debris toward the operator.
Do not cut in the dangerous area.
Do not force the trimmer head into uncut grass.
Wire and picket fences cause cutting line wear and
breakage. Stone and brick walls, curbs, and wood can
wear the cutting line quickly.
5 MAINTENANCE
IMPORTANT
Read and understand the safety regulations and the
maintenance instructions before you clean, repair or do the
maintenance work on the machine.
IMPORTANT
Make sure that all nuts, bolts and screws are tight. Examine
regularly that you install the handles tightly.
IMPORTANT
Use only the replacement parts and accessories of the initial
manufacturer.
5.1 GENERAL INFORMATION
IMPORTANT
Only your dealer or approved service center can do the
maintenance that is not given in this manual.
Before the maintenance operations:
Stop the machine.
Remove the battery pack.
Cool the motor.
Store the machine in cool and dry place.
Use correct clothing, protective gloves and safety glasses.
5.2 CLEAN THE MACHINE
Clean the machine after use with a moist cloth dipped in
neutral detergent.
Do not use aggressive detergents or solvents to clean the
plastic parts or handles.
Keep the trimmer head free of grass, leaves, or excessive
grease.
Keep the air vents clean and free of debris to avoid
overheating and damage to the motor or the battery.
Do not spray water onto the motor and electrical
components.
5.3 REPLACE THE SPOOL
Figure 10 - 14.
1. Push the tabs on the sides of the trimmer head at the same
time.
2. Pull and remove the spool cover.
3. Remove the remaining spool.
4. Put the spool in the spool housing.
NOTE
Make sure that you put the cutting line in the slot on the
new spool and extend the line approximately 15 cm before
you install the new spool.
5. Put the ends of the cutting lines through the holes.
6. Extend the cutting line to release it from the guide slot in
the spool.
7. Push the tabs and install the spool cover onto the spool
housing.
8. Push the spool cover until it clicks into position.
5.4 REPLACE THE CUTTING LINE
Figure 15 - 18.
NOTE
Remove the remaining cutting line on the spool.
NOTE
Use only with the nylon cutting line of 2 mm diameter.
1. Cut a piece of cutting line approximately 3m long.
2. Bend the line at the midpoint and hook the loop into the
slot in the center rim of the spool. Make sure that the line
snaps into position in the slot.
3. With your finger between the lines, wind the lines equally
and tightly around the spool in the indicated direction.
4. Put the lines in the guide slots.
5. Do not wind the lines beyond the edge of the spool.
5.5 REPLACE THE BUMP KNOB
Figure 19.
1. Push the tabs on the sides of the trimmer head at the same
time.
2. Pull and remove the spool cover.
3. Remove the spool.
4. Hold the bump knob and pry it out with a metal rod (not
provided).
5. Put the new bump knob into the spool housing.
5.6 ASSEMBLE THE TRIMMER HEAD
Figure 20.
1. Put the metal rod in the specified angle transmission hole
to fix the trimmer head.
2. Assemble the trimmer head.
3. Turn the trimmer head counterclockwise to tighten it.
4. Remove the metal rod.
6
English
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