Removing Or Installing Shear Blades - Makita DUP361 Manual De Instrucciones

Lower shear blade
1. Apply the round surface of the diamond file to the
blade edge.
Push the diamond file towards the tip of the blade to
sharpen along the entire blade edge.
► Fig.26
2. Apply the flat surface of the diamond file lightly to
the opposite side of the blade.
Move the diamond file towards the tip of the blade
lightly to remove burrs.
► Fig.27
NOTICE:
Do not sharpen this side too much. File
lightly only for removing burrs. Otherwise the blade
clearance may become too much or the blade life
may be shortened.
Adjustment for blade clearance
► Fig.28: 1. Plate fixing bolt 2. Lock plate 3. Blades
tightening nut
From time to time, adjust the clearance of the shear
blades as follows:
1. Switch on the tool, and pull the switch trigger to
open the shear blades.
2. With shear blades open, switch off the tool. And
disconnect the connection cord from the tool.
3.
Loosen the plate fixing bolt. And then remove the
lock plate.
4. Adjust the tightness of the blades tightening nut
by hand (fastening torque for the blade tightening nut:
approximately 0.5 N•m).
5. Install the lock plate and plate fixing bolt again.
6. Check the tightness of the blade whether the
blades never rattle but upper blade can be opened or
closed about 3mm by hand. If the blades are too tight or
loose, adjust the clearance again.
NOTICE:
Pay attention to the clearance of the
blades. Too loose clearance may result in dull cut,
and too tight blade clearance may result in overload
for the motor and short running time of the tool.

Removing or installing shear blades

To remove the shear blades, perform following steps:
1. Tilt the opening angle selector lever to the left side
first to open the blades fully.
2. Switch on the tool, and pull the switch trigger to
open the shear blades.
3. With shear blades open, switch off the tool. And
disconnect the connection cord from the tool.
► Fig.29
4. Remove two bolts near the switch trigger with the
hex wrench.
Remove the trigger guard by separating the tongue on
the trigger guard from the groove of the housing.
► Fig.30: 1. Bolts 2. Trigger guard
5. Remove the E-ring on the link arm with a slotted
screwdriver or alike.
► Fig.31: 1. E-ring 2. Link arm
NOTICE:
The E-ring is expendable part. Do not
re-use the E-ring when reassembling.
6.
Carefully remove the pin.
► Fig.32: 1. Pin
7. Remove two bolts from the side of the housing.
► Fig.33: 1. Bolts
8. Carefully remove the upper and lower shears from
the housing.
► Fig.34
9.
To separate the upper blade and the lower blade,
first loosen the plate fixing bolt.
Then remove the lock plate.
► Fig.35: 1. Plate fixing bolt 2. Lock plate
NOTE: When replacing the blades for hard branch
with ones for thin branch, or vise versa, replace the
plate fixing bolt as well.
10. Loosen and remove the blades tightening nut.
► Fig.36: 1. Blade tightening nut 2. Blade tightening
bolt
NOTE: When replacing the blades for hard branch
with ones for thin branch, or vise versa, replace the
blade tightening bolt as well.
To install the shear blades, perform the procedures
above in reverse. Make sure all the bolts are securely
tightened.
After installing the blade, always adjust the blade clear-
ance. (Refer to "Adjustment for blade clearance".)
To install the shear blades, perform the procedures
above in reverse. When installing the shear blades, pay
attention to the following points:
• Apply machine oil or grease on to the blade tight-
ening bolt and between the blades.
• If you can not place the plate fixing bolt properly,
first, remove the O-ring and the plate fixing bolt
from the lock plate. And then overturn the lock
plate, and return the O-ring and the plate fixing
bolt.
• When installing the trigger guard, align the tongue
of the trigger guard with the groove of the housing.
► Fig.37
• Make sure all the bolts are securely tightened.
• After installing the blade, always adjust blade
clearance. (Refer to "Adjustment for blade
clearance".)
• After installing the blade, always adjust cutting
depth. (Refer to "Cutting depth adjustment".)
15 ENGLISH