Parts Description; Installation; Functional Description - Makita AT638A Instruction Manual

PARTS DESCRIPTION

► Fig.1: 1. Trigger 2. Nose adapter (contact element)
3. Hook 4. Magazine

INSTALLATION

Selecting compressor
60
50
40
2
30
20
10
10 20
1. Stapling frequency (times/min) 2. Compressor air
output per minute (L/min) 3. 0.83 MPa (8.3 bar) 4. 0.66
MPa (6.6 bar) 5. 0.49 MPa (4.9 bar)
The air compressor must comply with the requirements
of EN60335-2-34.
Select a compressor that has ample pressure and air
output to assure cost-efficient operation. The graph
shows the relation between stapling frequency, applica-
ble pressure and compressor air output.
Thus, for example, if stapling takes place at a rate of
approximately 60 times per minute at a compression
of 0.83 MPa (8.3 bar), a compressor with an air output
over 50 liters/minute is required.
Pressure regulators must be used to limit air pressure to the
rated pressure of the tool where air supply pressure exceeds
the tool's rated pressure. Failure to do so may result in serious
injury to tool operator or persons in the vicinity.
Selecting air hose
CAUTION:
Low air output of the compressor,
or a long or smaller diameter air hose in relation
to the stapling frequency may cause a decrease in
the driving capability of the tool.
► Fig.2
Use an air hose as large and as short as possible to
assure continuous, efficient stapling operation.
With an air pressure of 0.49 MPa (4.9 bar), an air hose
with an internal diameter of over 6.5 mm and a length
of less than 20 m is recommended when the interval
between each stapling is 0.5 seconds.
Air supply hoses shall have a minimum working pressure
rating of 1.03 MPa (10.3 bar) or 150 percent of the maximum
pressure produced in the system whichever is higher.
30 40 50 60
1
Lubrication
► Fig.3
To insure maximum performance, install an air set (oiler,
regulator, air filter) as close as possible to the tool.
Adjust the oiler so that one drop of oil will be provided
for every 50 staples.
When an air set is not used, oil the tool with pneumatic
tool oil by placing 2 (two) or 3 (three) drops into the air
fitting. This should be done before and after use.
For proper lubrication, the tool must be fired a couple of
times after pneumatic tool oil is introduced.
► Fig.4: 1. Pneumatic tool oil
3
4 FUNCTIONAL
DESCRIPTION
5
CAUTION:
tion on the tool, always release the trigger and
disconnect the air hose from the tool.
Adjusting depth of stapling
► Fig.5: 1. Adjuster
To adjust the depth of stapling, turn the adjuster.
The depth of stapling is the deepest when the adjuster
is turned fully in the A direction shown in the figure. It will
become shallower as the adjuster is turned in the B direction.
If staples cannot be driven deep enough even when the adjuster
is turned fully in the A direction, increase the air pressure.
If staples are driven too deep even when the adjuster is
turned fully in the B direction, decrease the air pressure.
Generally speaking, the tool service life will be longer
when the tool is used with lower air pressure and the
adjuster set to deeper depth of staple driving.
Hook
CAUTION:
tion or on potentially unstable surface.
CAUTION:
waist belt. If the stapler accidentally drops, it may
result in misfiring and personal injuries.
► Fig.6: 1. Hook
The hook is convenient for hanging the tool temporarily.
Air duster
CAUTION:
duster to someone. Also, keep your hands and foot
away from the ejection port. If the air duster button is
accidentally pushed, it may cause a personal injury.
CAUTION:
before using the air duster. Blown dust or objects
may hit someone.
CAUTION:
air hose while pushing the air duster button.
9 ENGLISH
Before adjusting or checking func-
Never hook the tool at high loca-
Do not hang the hook from the
Do not aim the ejection port of the air
Always check your surroundings
Do not connect or disconnect the