9
TROUBLESHOOTING
Stop using the tool immediately if any of the following problems occurs. Serious
personal injury could occur. Necessary repair or replacement must be carried out by
a qualified and trained technician of an authorized service location.
PROBLEM
CAUSE
TROUBLESHOOTING
Air leaking at trigger valve
area.
Damaged O-rings in
trigger valve housing.
Replace O-rings & check
the operation of safety yoke
mechanism.
Loose screws in
housing.
Tighten screws.
Damaged O-rings.
Replace O-rings.
Air leaking between
housing and nose.
Damaged bumper.
Replace bumper.
Loose screws.
Tighten screws.
Air leaking between
housing and cap assy.
Damaged seal.
Replace seal.
Worn bumper.
Replace bumper.
Dirt in nose.
Clean nose.
Dirt or damage prevents
fasteners from moving
freely in magazine.
Clean magazine and
inspect/repair damage.
Inadequate air inflow.
Check fitting, hose, com-
pressor & air pressure.
Worn O-ring on piston
or lack of lubrication.
Replace O-rings.
Lubrication.
Damaged O-rings on
trigger valve.
Replace O-rings.
Air leaks.
Tighten screws and fittings.
Tool skips driving
fastener.
Air leakage due to worn
cap seal.
Replace seal.
10
LU-1580F
L
38-64mm (1 1/2”~2
1/2”)
A
11.2mm (7/16”)
B
1.7mm (.067”)
C
1.9mm (.075”)
LU-951PDF
L
25-50mm (1”~2”)
A
12.8mm (1/2”)
B
1.4mm (.055”)
C
1.6mm (.063”)
LU-851F
L
25-50mm (1”~2”)
A
11.2mm (7/16”)
B
1.4mm (.055”)
C
1.6mm (.063”)
LU-864F
L
38-64mm (1 1/2”~2
1/2”)
A
11.2mm (7/16”)
B
1.4mm (.055”)
C
1.6mm (.063”)
FASTENERS
