Operation - DeWalt D51238 Original Instructions Manual

ensuring that the trigger spring (8) is properly
seated.
• Insert the dowel pin (6) through the tool frame,
contact trip guide and trigger assembly.
• Push the rubber grommet (5) onto the end of the
dowel pin.
Air fi tting (fi g. A)
These tools have a standard 1/4" pipe thread for
the air fi tting (2).
• Wrap the male end of the fi tting with Tefl on tape
to prevent air leaks.
• Screw the fi tting into the end cap and tighten fi rmly.

OPERATION

Instructions for use
WARNING: Always observe the safety
instructions and applicable regulations.
Proper Hand Position (fi g. G)
WARNING: To reduce the risk of serious
personal injury, ALWAYS use proper
hand position as shown.
WARNING: To reduce the risk of serious
personal injury, ALWAYS hold securely in
anticipation of a sudden reaction.
Proper hand position requires one hand on the main
handle as shown.
Preparing the tool (fi g. C)
• Drain all condensation from the air compressor
tanks and hoses.
• Lubricate the tool. See "Maintenance".
• Remove all nails from the magazine (4).
• Press the pusher release button (11) and pull the
magazine (4) rearward.
• Check if the contact trip (3) and magazine (4) can
move freely.
WARNING: Do not use the tool if the
contact trip or magazine cannot move
freely.
• Check that the pressure of the air supply is below
the maximum recommended operating pressure.
• Connect the air hose to the fi tting on the tool.
• Check for audible leaks around valves and gaskets.
WARNING: Never use a tool that leaks
or has damaged parts.
Cold weather operation
When operating tools at temperatures below freezing:
• Keep the tool as warm as possible before use.
• Disconnect the airline from the tool.
• Put 5-10 drops of D WALT pneumatic tool oil (or
E
winter-weight pneumatic oil containing ethylene
glycol) into the air inlet.
• Set the air pressure to a maximum of 5.5 bar.
• Connect the air hose to the fi tting on the tool.
• Load nails into the magazine as described below.
• Actuate the tool 5 or 6 times into scrap lumber to
lubricate the o-rings.
• Increase the air pressure to the normal operating
level.
• Use the tool in the normal manner.
Hot weather operation
The tool should operate normally. Avoid the heat of
direct sunlight to avoid damage to the bumpers,
o-rings and other rubber parts.
Loading the tool (fi g. C)
WARNING: Always disconnect the
tool from the air supply before loading
fasteners.
• Press the pusher release button (11) and pull the
magazine (4) rearward.
• Select an appropriate collated nail stick. See
"Technical data".
• Insert collated nail stick(s) into the loading slot on
top of the magazine.
• Push the magazine forward until it locks in place.
Actuating the tool (fi g. D)
These tools are equipped with a trigger/lock-off
switch (1). When rotated to the right, this switch
prevents the tool from actuating. When the switch
is centred, the tool will be fully operational. The
tool can be operated using one of two modes:
sequential action mode or bump action mode. The
trigger installed on the tool determines the mode of
actuation.
E N G L I S H
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