Cold Weather Operation; Depth Of Drive Adjustment - Bosch FNA-250-15 Operating/Safety Instructions Manual

BM 2610957377 02-09:BM FNA250 06-09 6/17/09 8:01 AM Page 10

Cold Weather Operation

When using the tool in cold conditions the tool will cycle
slower than usual while driving the first nails. The cycle rate
will increase as the tool warms up. Keep tool warm to avoid
reduced cycle rate.
Do not use a frozen tool. Allow tool to thaw
WARNING
!
before using. Moisture frozen in the tool may
impede internal components resulting in the risk of injury
and/or tool damage.
Nail Unloading
Always disconnect tool from air supply
WARNING
!
before removing nails from magazine.
This avoids the risk of unintentional operation.
Do not disconnect air hose from the tool
WARNING
!
with finger on trigger or work contact
element depressed. The tool can fire when reconnected to
air supply.
1. Disconnect air supply.
2. Pull back follower, pressing bypass lever of the follower to
allow follower to bypass nails and slowly allow follower to
return to nose of the tool, see figure 13.
3. Tilt the tool with the magazine vertical and the nose facing
up, this will allow the nails to slide to the back of the
magazine.
4. Once the nails have slid back to the hold back spring,
press the tab on the hold back spring to push the spring
back and allow the nails to come out of the magazine, see
figure 14.
Do not allow the nail follower to freely
WARNING
!
recoil. Guide the follower by hand until it
reaches its full forward position. Free recoil of the
follower could result in damage to the follower and/or
magazine or your fingers could become pinched.

Depth of Drive Adjustment

The depth with which nails are driven into the work piece
can be adjusted using the depth adjustment on the nose
piece of the tool.
Disconnect the tool from the air source
WARNING
!
before making adjustments. Such
precautionary safety measures reduce the risk or
unintentional tool operation.
1. Disconnect tool from air supply.
2. Remove nails from tool as described in the "Nail
Unloading" section of this manual.
3. Adjust tool driving depth:
• To reduce the nail depth, turn the adjustment knob
counter clockwise, see figure 15.
Operation
FIG. 13
FIG. 14
FIG. 15
Too Deep
Turn the adjustment knob counter clockwise.
FIG. 16
Too Shallow
Turn the adjustment knob clockwise.
10.
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