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TROUBLESHOOTING
PROBLEM CAUSE. . . . . . . . . . . . . . . . . . . . . CORRECTION
T
rigger valve housing leaks air O-ring cut or cracked . . . . . . . . . . . . . . . . . . . . . . Replace O-ring
Trigger valve stem leaks air O-ring/seals cut or cracked. . . . . . . . . . . . . . . . . . Replace trigger valve assembly
Frame/nose leaks air Loose nose screws. . . . . . . . . . . . . . . . . . . . . . . . Tighten and recheck
O-ring or Gasket is cut or cracked . . . . . . . . . . . . Replace O-ring or gasket
B
umper cracked/worn. . . . . . . . . . . . . . . . . . . . . . Replace bumper
Frame/cap leaks air Damaged gasket or seal. . . . . . . . . . . . . . . . . . . . Replace gasket or seal
Cracked/worn head valve bumper . . . . . . . . . . . . Replace bumper
L
oose cap screws. . . . . . . . . . . . . . . . . . . . . . . . . Tighten and recheck
F
ailure to cycle Air supply restriction . . . . . . . . . . . . . . . . . . . . . . . Check air supply equipment
Tool dry, lack of lubrication . . . . . . . . . . . . . . . . . . Use BOSTITCH Air Tool Lubricant
Worn head valve O-rings . . . . . . . . . . . . . . . . . . . Replace O-rings
B
roken cylinder cap spring . . . . . . . . . . . . . . . . . . Replace cylinder cap spring
Head valve stuck in cap . . . . . . . . . . . . . . . . . . . . Disassemble/Check/Lubricate
Lack of power; slow to cycle Tool dry, lacks lubrication . . . . . . . . . . . . . . . . . . . Use BOSTITCH Air Tool Lubricant
Broken cylinder cap spring . . . . . . . . . . . . . . . . . . Replace cap spring
O
-rings/seals cut or cracked. . . . . . . . . . . . . . . . . Replace O-rings/seals
Exhaust blocked . . . . . . . . . . . . . . . . . . . . . . . . . . Check bumper, head valve spring, muffler
Trigger assembly worn/leaks . . . . . . . . . . . . . . . . Replace trigger assembly
Dirt/tar build up on driver . . . . . . . . . . . . . . . . . . . Disassemble nose/driver to clean
Cylinder sleeve not seated correctlyon bottom
bumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disassemble to correct
Head valve dry . . . . . . . . . . . . . . . . . . . . . . . . . . . Disassemble/lubricate
Air pressure too low . . . . . . . . . . . . . . . . . . . . . . . Check air supply equipment
S
kipping fasteners; intermittent feed Worn bumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace bumper
Tar/dirt in driver channel. . . . . . . . . . . . . . . . . . . . Disassemble and clean nose and driver
Air restriction/inadequate air flow through
quick disconnect socket and plug. . . . . . . . . . . . . Replace quick disconnect fittings
Worn piston O-ring . . . . . . . . . . . . . . . . . . . . . . . . Replace O-ring, check driver
Tool dry, lacks lubrication . . . . . . . . . . . . . . . . . . . Use BOSTITCH Air Tool Lubricant
Damaged pusher spring . . . . . . . . . . . . . . . . . . . . Replace spring
Low air pressure . . . . . . . . . . . . . . . . . . . . . . . . . . Check air supply system to tool
Loose magazine nose screws . . . . . . . . . . . . . . . Tighten all screws
Fasteners too short for tool. . . . . . . . . . . . . . . . . . Use only recommended fasteners
Bent fasteners. . . . . . . . . . . . . . . . . . . . . . . . . . . . Discontinue using these fasteners
Wrong size fasteners . . . . . . . . . . . . . . . . . . . . . . Use only recommended fasteners
Leaking head cap gasket . . . . . . . . . . . . . . . . . . . Tighten screws/replace gasket
Trigger valve O-ring cut/worn . . . . . . . . . . . . . . . . Replace O-ring
Broken/chipped driver. . . . . . . . . . . . . . . . . . . . . . Replace driver (check piston O-ring)
Dry/dirty magazine . . . . . . . . . . . . . . . . . . . . . . . . Clean/lubricate use BOSTITCH Tool
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lubricant
Worn magazine. . . . . . . . . . . . . . . . . . . . . . . . . . . Replace magazine
Fasteners jam in tool Driver channel worn . . . . . . . . . . . . . . . . . . . . . . . Replace nose/check door
Wrong size fasteners . . . . . . . . . . . . . . . . . . . . . . Use only recommended fasteners
Bent fasteners. . . . . . . . . . . . . . . . . . . . . . . . . . . . Discontinue using these fasteners
Loose magazine/nose screws . . . . . . . . . . . . . . . Tighten all screws
Broken/chipped driver. . . . . . . . . . . . . . . . . . . . . . Replace driver
COIL NAILERS
Skipping fasteners; intermittent feed Feed piston dry. . . . . . . . . . . . . . . . . . . . . . . . . . . Add BOSTITCH Air Tool Lubricant in hole
in feed piston cover
Feed piston O-rings cracked/worn . . . . . . . . . . . . Replace O-rings/check bumper and
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . spring. Lubricate assembly.
Check Pawl binding . . . . . . . . . . . . . . . . . . . . . . . Inspect Pawl and spring on door. Must
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . work freely.
Canister bottom not set correctly . . . . . . . . . . . . . Set canister bottom for length of nails
being used
Broken weld wires in nail coil . . . . . . . . . . . . . . . . Remove coil of nails and use another coil
Fasteners jam in tool/canister Wrong size fasteners for tool . . . . . . . . . . . . . . . . Use only recommended fasteners/check
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . canister bottom adjustment
Broken welded wires in nail coil . . . . . . . . . . . . . . Remove coil of nails and use another coil
Wrong slide plate adjustment for
wire/plastic collated nail coil . . . . . . . . . . . . . . . . . Adjust switch pins for wire/plastic collated
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . nail coil
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