TROUBLE SHOOTING
PROBLEM
Trigger valve housing leaks air
Trigger valve stem leaks air
Frame/cap leaks air
Failure to cycle
Lack of power; slow to cycle
Skipping fasteners; intermittent feed Dirt in blade area . . . . . . . . . . . . . . . . . . . . . . .Disassemble and clean tool
Fasteners jam in tool
BC601
BC602
BC603
BC604
851325
851385
100679
134521
HR-55996
CAUSE
O-ring cut or cracked . . . . . . . . . . . . . . . . . . . .Replace O-ring
O-ring/seals cut or cracked . . . . . . . . . . . . . . . .Replace trigger valve assembly
Damaged gasket or seal . . . . . . . . . . . . . . . . . .Replace gasket or seal
Loose cap screws . . . . . . . . . . . . . . . . . . . . . .Tighten and recheck
Air supply restriction . . . . . . . . . . . . . . . . . . . . .Check air supply equipment
Tool dry, lack of lubrication . . . . . . . . . . . . . . . .Use BOSTITCH Air Tool Lubricant
Worn piston O-rings . . . . . . . . . . . . . . . . . . . . .Replace O-rings
Broken piston return springs . . . . . . . . . . . . . . .Replace piston return springs
Tool dry, lacks lubrication . . . . . . . . . . . . . . . . .Use BOSTITCH Air Tool Lubricant
O-rings/seals cut or cracked . . . . . . . . . . . . . . .Replace O-rings/seals
Exhaust blocked . . . . . . . . . . . . . . . . . . . . . . .Check valve O-rings
Trigger assembly worn/leaks . . . . . . . . . . . . . .Replace trigger assembly
Dirt build up on blade . . . . . . . . . . . . . . . . . . . .Disassemble to clean
Valve dry . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Disassemble/lubricate
Air pressure too low . . . . . . . . . . . . . . . . . . . . .Check air supply equipment
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 follower spring . . . . . . . . . . . . . . . . .Replace spring
Low air pressure . . . . . . . . . . . . . . . . . . . . . . . .Check air supply system to tool
Loose 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 blade . . . . . . . . . . . . . . . . . . . .Replace blade (check piston O-ring)
Dirty magazine . . . . . . . . . . . . . . . . . . . . . . . . .Clean/lubricate use BOSTITCH Air Tool Lubricant
Worn magazine . . . . . . . . . . . . . . . . . . . . . . . .Replace magazine
Clips loaded backwards . . . . . . . . . . . . . . . . . .Turn clips around
Wrong size fasteners . . . . . . . . . . . . . . . . . . . .Use only recommended fasteners
Bent fasteners . . . . . . . . . . . . . . . . . . . . . . . . .Discontinue using these fasteners
Loose screws . . . . . . . . . . . . . . . . . . . . . . . . . .Tighten all screws
Broken/chipped blade . . . . . . . . . . . . . . . . . . . .Replace blade
4 oz. Bostitch Air-Tool Lubricant.
1 pint Bostitch Air Tool Lubricant.
1 pint Bostitch "Winter-Formula" Air-Tool Lubricant.
1 quart Bostitch Air-Tool Lubricant
Loctite Grade 271 (.02 oz.)
Loctite Grade 242 (.02 oz.)
Lube (1lb. can)
CL, Tool Hanger
Clinch Clip Removal Pliers
CORRECTION
ACCESSORIES AVAILABLE
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