Makita DUH501 Instruction Manual page 13

This tool has a reverse button to change the direction
of shear blades movement. It is only for removing
branches and debris entangled in the tool.
To reverse the shear blades movement, tap the reverse button when
the shear blades have stopped, then press the switch lever and pull
the switch trigger while pressing the lock-off lever. The power lamp
starts blinking, and the shear blades move in reverse direction.
When entangled branches and debris are removed,
the tool returns to the regular movement and the power
lamp stops blinking and lights up.
► Fig.7: 1. Reverse button
NOTE: If the entangled branches or debris cannot be removed,
release and pull the switch trigger until they are removed.
NOTE: If you tap the reverse button while the shear
blades are still moving, the tool comes to stop and to
be ready for reverse movement.
ASSEMBLY
CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before carrying out any work on the tool.
CAUTION:
When replacing the shear blades,
always wear gloves so that your hands do not
directly contact the blades.
NOTICE:
When replacing the shear blades, do
not wipe off grease from the gear and crank.
Installing or removing the shear blades
CAUTION:
Attach the blade cover before
removing or installing the shear blades.
You can install 500 mm, 600 mm, or 750 mm shear
blades to your tool.
Place the tool upside down, and then remove 6 screws.
1.
► Fig.8: 1. Screw
Remove the cover and the plate.
2.
► Fig.9: 1. Cover 2. Plate
NOTE: The plate may remain on the cover.
3. Remove the rod.
► Fig.10: 1. Rod
NOTE: The rod may remain on the cover.
Remove 2 screws, the felt pad, the washers, and
4.
the sleeves, and then remove the shear blades.
► Fig.11: 1. Felt pad 2. Screw 3. Washer 4. Sleeve
5. Shear blades
Remove the blade cover.
5.
Attach the blade cover to the new shear blades.
6.
Adjust the crank so that 2 holes are lined up on
7.
the alignment line.
► Fig.12: 1. Hole 2. Alignment line
Align the protrusions on the shear blades vertically
8.
at the same position.
► Fig.13: 1. Protrusion
Attach the felt pad to the shear blades.
9.
► Fig.14: 1. Felt pad
10. Insert the protrusion on the shear blades to the
hole on the rod, then align the position of the felt pad
with the holes on the tool, and then attach new sleeves
and washers.
► Fig.15: 1. Protrusion 2. Hole 3. Felt pad 4. Washer
5. Sleeve
NOTICE:
Apply a small amount of grease to the
inner periphery of the hole of the rod.
NOTICE:
Be careful not to lose the washers and
the sleeves.
11. Align the holes on the shear blades with the holes
on the tool, and then tighten 2 screws to fix the shear
blades.
► Fig.16: 1. Screw 2. Hole
12. Attach the rod.
► Fig.17: 1. Rod 2. Small hole
NOTICE:
Apply a small amount of grease to the
inner periphery of the small hole of the rod.
NOTICE:
Make sure that the protrusion on the
shear blades fits in the small hole on the rod.
13. Attach the plate.
► Fig.18: 1. Protrusion 2. Plate
NOTICE:
Make sure that the protrusion on the
shear blades fits in the hole on the plate.
14. Attach the cover, and then tighten 6 screws.
► Fig.19: 1. Cover 2. Screw
NOTICE:
Be sure to attach 2 long screws to the
center holes.
NOTICE:
If the shear blades do not move
smoothly, the shear blades are not engaged with
the rods properly. Install the shear blades again.
NOTICE:
If the parts other than the shear
blades such as the rods are worn out, ask Makita
Authorized Service Centers for parts replacement
or repairs.
Installing or removing the chip
receiver
Optional accessory
CAUTION:
When installing or removing the
chip receiver, always wear gloves so that your
hands do not directly contact the shear blades.
NOTICE:
The blade cover cannot be installed if
the chip receiver is installed on the tool. Before
carrying or storing the tool, uninstall the chip
receiver, and then install the blade cover to avoid
blade exposure.
NOTICE:
Be sure to remove the blade cover
before installing the chip receiver.
13 ENGLISH