Troubleshooting - Makita AR-3733 Instruction Manual

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".)
Trouble shooting
Before making a request for repairs, check for trouble
by yourself. If any abnormality is found, control your
tool according to the description of this manual. If the
remedy mentioned below cannot solve the problem, ask
your local authorized service center for repair. Never
tamper or dismount any part contrary to the description.
State of Probable cause
abnormality (malfunction)
The shear blade The battery is
does not move low.
even after pull-
I/O switch is "Off"
ing the switch
position.
trigger.
The shears are
locked.
Connection cord
is loose.
I/O switch is "on"
position when
inserting the bat-
tery cartridge.
Switch trigger
defect.
The shear The branch is too
blades are stuck thick.
on the branch.
The switch Shear blades are
trigger is locked opened forcibly.
and can not be
pulled.
The cut is not The shear blades
smooth. are dull.
The shear blades
are worn out.
To maintain product SAFETY and RELIABILITY,
repairs, any other maintenance or adjustment should
be performed by Makita/Dolmar Authorized or Factory
Service Centers, always using Makita/Dolmar replace-
ment parts.
15 ENGLISH
Remedy
Charge the battery.
Press the I/O switch to
"I" position.
Unlock the shears by
performing the steps in
"Switch action".
Check the connecting
points of the switch box
and shears of connec-
tion cord.
Press the I/O switch
to the "O" (off) position
once, and press the I/O
switch to the "I" (on)
position again.
Stop using the tool
immediately, and ask
your local authorized
service center for
repair.
Release the switch
trigger. Press the I/O
switch to "O" position.
Then pull the blades
straight out slowly from
the branch.
Switch off and on with
the I/O switch. (The
upper shear blade
closes slightly when
switching on.)
Sharpen the shear
blades, or adjust blade
clearance.
Replace the shear
blades.