Makita GN420C - Nail Driving and Jamming; Nail-Driving of Concrete; Jammed Nailer

11 ENGLISH
Nail-driving of concrete
WARNING:
• Use hardened nails only for concrete.
Using other purposed nails may cause serious
injuries. Do not nail directly on the concrete.
Failure to do so may cause concrete fragments
to y off or nails to strike back, causing serious
injuries.
• When driving nails, hold the tool so that it stands
upright to the driving surface.
Slanted nail-driving may cause concrete frag-
ments to y off or nails to strike back, causing
serious injuries.
• Do not use the tool on the surface that objects
hang from, such as area where hangers for
sewer pipe, dust pipe etc. are set up
CAUTION:
• Use this tool only for soft concrete built up not
so long before. Using on the hard concrete may
cause nail bending or nail-driving to insufcient
depth.
• When the penetration amount into concrete is
required more than 20 mm, driving nails to the
sufcient length may not be obtained. Nails may
be driven too shallow causing unstable work-
piece, resulting in personal injury and damage
to property.
• When driving nail directly onto hard surfaces
such as steel and concrete, press the contact
element rmly against the workpiece to prevent
slipping.
Choose and use appropriate nails so that the penetra-
tion amount into concrete ranges 15 mm - 20 mm.
1
2
► 1. Thin steel plate 2. Penetration amount into
concrete
Anti dry re mechanism
This mechanism prevents the tool from ring without
nail.
Dry re prevention automatically functions when the
rest of nails get to the last 2-3 pieces.
Jammed nailer
WARNING:
• Always be sure to remove the fuel cell and the
battery cartridge before clearing a jam.
CAUTION:
• Do not use deformed nails or nail strip. Failure
to do so causes poor nail feeding.
Follow the removing nail procedure and remove the
jammed nails.
1
► 1. Magazine
Remove the fuel cell, the battery cartridge and nails.
Loosen the bolt on the magazine. Remove the maga-
zine and remove the jammed nails.
If the nails cannot be removed after performing above
method, do as follows.
Insert a small rod or the like into the ejection port and
tap it with a hammer to drive out the jammed nails from
the ejection port.