Maintenance - Makita AN924 Betriebsanleitung

Checking proper action before
operation
Before operation, always check following points.
— Make sure that the tool does not operate only by
connecting the air hose.
— Make sure that the tool does not operate only by
pulling the trigger.
— Make sure that the tool does not operate only by
placing the contact element against the workpiece
without pulling the trigger.
— In single sequential actuation mode, make sure
that the tool does not operate when pulling the
trigger first and then placing the contact element
against the workpiece.
Selecting the operation mode
CAUTION:
Always make sure that the actua-
tion mode selector is properly set to the position
for the desired nailing mode before nailing.
► Fig.16: 1. Actuation mode selector
Single sequential actuation mode:
You can drive one nail by one sequential operation.
Select this mode when driving a nail carefully and
accurately.
To choose this mode, set the actuation mode selector to
the position.
Contact actuation mode:
You can drive nails repetitively by placing the contact
element with the trigger held.
To choose this mode, set the actuation mode selector to
the position.
Single sequential actuation
CAUTION:
Do not place the contact element
against the workpiece with excessive force. Also,
pull the trigger fully and hold it on for 1-2 seconds
after nailing.
Even in the "Single sequential actuation" mode, half-
pulled trigger causes an unexpected nailing, when the
contact element re-contacts the workpiece.
Place the contact element against the workpiece and
pull the trigger fully.
After nailing, release the contact element, and then
release the trigger.
► Fig.17
Contact actuation
Pull the trigger first and then place the contact element
against the workpiece.
► Fig.18
Anti dry fire mechanism
This tool is equipped with an anti dry fire mechanism.
When there are a few nails remaining in the magazine,
the contact arm will be locked in the undepressed posi-
tion to prevent the tool from being activated. When it is
activated, load more nails to resume operation.
Removing jammed nails
CAUTION:
Always release the trigger and dis-
connect the hose before removing jammed nails.
CAUTION:
Do not use deformed nails or nail
strip. Failure to do so causes poor nail feeding.
When the nailer becomes jammed, do as follows:
Insert a small rod or the like into the ejection port and
tap it with a hammer to retract the driver.
► Fig.19: 1. Hammer 2. Small rod 3. Ejection port
4. Driver
Use pliers to bend the jammed nail so that the nail head
comes out of the slot in the driver guide. Then remove
the jammed nail.
► Fig.20: 1. Pliers 2. Slot

MAINTENANCE

CAUTION:
Before attempting to perform
inspection or maintenance, always release the
trigger and disconnect the air hose from the tool.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
Nails
Handle nail strips and their box carefully. If the nail
strips have been handled roughly, they may be out of
shape, causing poor nail feed.
Avoid storing nails in a very humid or hot place or place
exposed to direct sunlight.
Maintenance of nailer
Always check the tool for its overall condition and loose
screws before operation. Tighten as required.
With tool disconnected, make daily inspection to assure
free movement of the contact element and trigger. Do
not use tool if the contact element or trigger sticks or
binds.
When the tool is not to be used for an extended period
of time, lubricate the tool using pneumatic tool oil and
store the tool in a safe place. Avoid exposure to direct
sunlight and/or humid or hot environment.
► Fig.21
11 ENGLISH