Maintenance; Operation - Makita DUR187U Instruction Manual

Loosen the hex socket head bolt on the hanger. Move
the hanger to a comfortable working position and then
tighten the bolt.
► Fig.30: 1. Hex socket head bolt 2. Hanger
Hex wrench storage
CAUTION:
Be careful not to leave the hex
wrench inserted in the tool head. It may cause
injury and/or damage to the tool.
When not in use, store the hex wrench as shown in the
figure to keep it from being lost.
► Fig.31: 1. Hex wrench
For DUR187L and DUR188L only
► Fig.32: 1. Handle 2. Hex wrench

OPERATION

Correct handling of tool
WARNING:
Always position the tool on your
right-hand side. Correct positioning of the tool allows
for maximum control and will reduce the risk of seri-
ous personal injury caused by kickback.
WARNING:
Be extremely careful to maintain
control of the tool at all times. Do not allow the
tool to be deflected toward you or anyone in the
work vicinity. Failure to keep control of the tool
could result in serious injury to the bystander and the
operator.
WARNING:
To avoid accident, leave more
than 15m (50 ft) distance between operators when
two or more operators work in one area. Also,
arrange a person to observe the distance between
operators. If someone or an animal enter the
working area, immediately stop the operation.
DUR187U and DUR188U
► Fig.33
DUR187L and DUR188L
► Fig.34
Attachment of shoulder harness
CAUTION:
Always use the shoulder harness
attached. Before operation, adjust the shoulder
harness according to the user size to prevent
fatigue.
Connect the hook of the shoulder harness to the hanger
and put the shoulder harness on. Make sure that the
tool is held securely by the shoulder harness.
DUR187U and DUR188U
► Fig.35: 1. Hook 2. Hanger
DUR187L and DUR188L
► Fig.36: 1. Hook 2. Hanger
Detachment
The shoulder harness features a means of quick
release.
DUR187U and DUR188U
► Fig.37: 1. Strip
Pull out the strip release the tool from the shoulder
harness.
DUR187L and DUR188L
► Fig.38: 1. Buckle
Simply squeeze the sides of the buckle to release the
tool from the shoulder harness.

MAINTENANCE

WARNING:
switched off and battery cartridge is removed
before attempting to perform inspection or main-
tenance on the tool. Failure to switch off and remove
the battery cartridge may result in serious personal
injury from accidental start-up.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
Replacing the nylon cord
WARNING:
specified in "SPECIFICATIONS" only. Never use
heavier line, metal wire, rope or the like. Use rec-
ommended nylon cord only, otherwise it may cause
damage to the tool and result in serious personal
injury.
WARNING:
nylon cutting head is secured to the housing
properly as described below. Failure to properly
secure the cover may cause the nylon cutting head to
fly apart resulting in serious personal injury.
1. Press on the housing latches inward to lift off the
cover, then remove the spool.
► Fig.39: 1. Latch 2. Cover
2.
Prepare approximately 3 m (9 ft) of new nylon
cord. Fold the new nylon cord with one end become
approximately 80 mm (3-1/8") longer than the other
end. Then hook the new nylon cord into the notch in the
center of the spool.
Wind both ends firmly around the spool in the direction
of the head rotation (left-hand direction indicated by LH
on the side of the spool).
► Fig.40: 1. Spool
3. Wind all but about 100 mm (3 - 15/16") of the
cords, leaving the ends temporarily hooked through a
notch on the side of the spool.
► Fig.41
17 ENGLISH
Always be sure that the tool is
Use nylon cord with diameter
Make sure that the cover of the