DeWalt D51238 Manual page 21

Instructions for use
Always observe the safety instructions
and applicable regulations.
Preparing the tool (fig. C)
• Drain all condensation from the air compressor
tanks and hoses.
• Lubricate the tool. See "Maintenance".
• Remove all nails from the magazine.
• Press the pusher release button (11) and pull the
magazine (4) rearward.
• Check if the contact trip (3) and magazine (4) can
move freely.
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 fitting on the tool.
• Check for audible leaks around valves and gaskets.
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
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 fitting 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.
WALT pneumatic tool oil (or
E
Loading the tool (fig. C)
Always connect the tool to the air supply
before loading nails.
• 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 (fig. 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.
Sequential action mode
The sequential action mode is used for intermittent
nailing when very careful and accurate placement is
desired.
• Fit the grey trigger as described above.
• Push the contact trip against the work surface.
• Pull the trigger to actuate the tool. Each trigger
pull with the contact trip pushed against the work
surface will drive one nail.
Bump action
The bump action mode is used for rapid nailing on
flat, stationary surfaces.
• Fit the black trigger as described above.
• To drive a single nail: Operate the tool as
described for sequential action.
• To drive several nails: Pull the trigger first, and
then push the contact trip repeatedly against the
work surface.
Do not keep the trigger depressed when
the tool is not in use. Keep the trigger
lock-off switch rotated to the right to
prevent accidental actuation when the
tool is not in use.
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