Operation; Maintenance - Makita AN450H Instruction Manual

ASSEMBLY
CAUTION:
Always disconnect the air hose before carrying out
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any work on the tool.
Loading nailer
Fig.8
Select nails suitable for your work. Depress the latch
lever and open the magazine cap.
Lift and turn the coil support plate so that the arrow with
nail size indicated on the coil support plate will point to
the corresponding graduation increment marked on the
magazine. If the tool is operated with the coil support
plate set to the wrong step, poor nail feed or malfunction
of the tool may result.
Fig.9
Place the nail coil over the coil support plate. Uncoil
enough nails to reach the feed claw. Place the first nail in
the driver channel and the second nail in the feed claw.
Place other uncoiled nails on feeder body. Close the
magazine cap after checking to see that the nail coil is
set properly in the magazine.
Fig.10
Connecting air hose
Fig.11
Slip the air socket of the air hose onto the air fitting on the
nailer. Be sure that the air socket locks firmly into position
when installed onto the air fitting. A hose coupling must
be installed on or near the tool in such a way that the
pressure reservoir will discharge at the time the air
supply coupling is disconnected.

OPERATION

CAUTION:
Make sure all safety systems are in working order
•
before operation.
1. To drive a nail, you may place the contact element
against the workpiece and pull the trigger, or
Fig.12
Fig.13
2. Pull the trigger first and then place the contact
element against the workpiece.
No. 1 method is for intermittent nailing, when you
•
wish to drive a nail carefully and very accurately. No.
2 method is for continuous nailing.
CAUTION:
However when the tool is set to the "Intermittent
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Nailing" mode, WITH THE TRIGGER HELD IN A
HALF-PULLED POSITION, an unexpected nailing
could occur, if contact element is allowed to
re-contact against the workpiece or the other
surface under the influence of recoil.
In order to avoid this unexpected nailing, perform
as follows;
− A. Do not place the contact element against the
workpiece with excessive force.
− B. Pull the trigger fully and hold it on for 1-2
seconds after nailing.
For No. (1) method, set the change lever to
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the position.
For No. (2) method, set the change lever to
the position.
After using the change lever to change the nailing
method, always make sure that the change lever is
properly set to the position for the desired nailing
method.
Fig.14
Fig.15

MAINTENANCE

CAUTION:
Always disconnect the air hose from the tool before
•
attempting to perform inspection or maintenance.
Never use gasoline, benzine, thinner, alcohol or the
•
like. Discoloration, deformation or cracks may
result.
Jammed nailer
Fig.16
CAUTION:
Always disconnect the air hose and remove the
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nails from the magazine before cleaning a jam.
When the nailer becomes jammed, do as follows:
Open the magazine cap and remove the nail coil. Insert a
small rod or the like into the ejection port and tap it with a
hammer to drive out the nail jamming from the ejection
port. Reset the nail coil and close the magazine cap.
Cleaning and removal of tar and dirt
Adhesion of tar and dirt to areas around the contact
element will prevent smooth movement of the contact
element (safety mechanism),
discharge. Periodically clean the areas around the
contact element. Use a solvent such as keros ene, #2
fuel oil or diesel fuel.
Immerse only the contact element and the areas around
the ejection port in solvent and remove tar and dirt with
brush. Always wear waterproof gloves to protect your
hands. Never immerse the housing, magazine, etc. in
solvent. Malfunction of the tool may result. Always
dispose of the solvent used in a safe and prudent manner
and in compliance with all local and national code
requirement.
Fig.17
Dry off the tool before use. Any oil film left after cleanup
will accelerate the tar buildup, and the tool will require
more frequent recleaning. After drying off the tool, oil the
moving parts to prevent rusting and to assure good
lubrication and operation or moving parts.
8
Causing accidental