MXN10400
7
Operating Instructions
Air leaking at trigger valve
Air leaking between hous-
ing and nose
Air leaking between hous-
ing and cap
Tool skips driving fastener
Tool runs slow or has loss
of power
Fasteners are jammed in
tool
O-Rings in trigger valve housing are
damaged
Loose screws in housing
Damaged O-Rings
Damage to bumper
Loose screws
Damaged gasket
Worn bumper
Dirt in nose piece
Dirt or damage prevent fasteners or
pusher from moving freely in magazine
Damaged pusher spring
Inadequate air flow to tool
Worn O-Ring on piston or lack of lubri-
cation
Damaged O-Ring on trigger valve
Air leaks
Cap gasket leaking
Tool not lubricated sufficiently
Broken spring in cylinder cap
Exhaust port in cap is blocked
Guide on driver is worn
Fasteners are not correct size
Fasteners are bent
Magazine or nose screws are loose
Driver is damaged
Replace O-Rings. Check operation of Work Contact
Element (WCE)
Tighten screws
Replace O-Rings
Replace bumper
Tighten screws
Replace gasket
Replace bumper
Clean drive channel
Clean magazine
Replace spring
Check fitting, hose or compressor
Replace and lubricate O-Rings
Replace O-Rings
Tighten screws and fittings
Replace gasket
Lubricate tool
Replace spring
Replace damaged internal parts
Replace guide
Use only recommended fasteners
Replace with undamaged fasteners
Tighten screws
Replace driver
Troubleshooting Guide
Stop using tool immediately if any of the following problems occur. Serious
personal injury could result. Any repairs or replacements must be done by a Qualified Service Person or
Authorized Service Center.
!
WARNING
Problem
Cause
Solution
2
General Safety
Information
(Continued)
Danger indicates
an imminently haz-
ardous situation which, if not avoided,
WILL result in death or serious injury.
Read and understand
tool labels and manual.
Failure to follow warn-
ings, dangers, and cau-
tions could result in
DEATH or SERIOUS
INJURY.
Do not use any type
of reactive gases,
including, but not lim-
ited to, oxygen and
combustible gases, as
a power source. Use
filtered, lubricated,
regulated compressed air only. Use
of a reactive gas instead of com-
pressed air may cause the tool to
explode which will cause death or
serious personal injury.
Use only a pressure-
regulated compressed
air source to limit the
air pressure supplied
to the tool. The regu-
lated pressure must
not exceed 100 psi. If the regulator
fails, the pressure delivered to the
tool must not exceed 200 psi. The
tool could explode which will cause
death or serious personal injury.
Never use gasoline
or other flammable
liquids to clean the
tool. Never use the
!
DANGER
tool in the presence of flammable
liquids or gases. Vapors could ignite
by a spark and cause an explosion
which will result in death or serious
personal injury.
Always remain in
a firmly balanced
position when
using or handling
the tool.
Do not remove,
tamper with, or
otherwise cause
the Work Contact
Element (WCE) or
trigger to become
inoperable. Do
not operate any tool which has been
modified in a like fashion. Death or
serious personal injury could result.
Do not touch the
trigger unless dri-
ving fasteners.
Never attach air
line to tool or
carry tool while
touching the trig-
ger. The tool could eject a fastener
which will result in death or serious
personal injury.
Warning indicates
a potentially
hazardous situation which, if not avoid-
ed, COULD result in death or
serious injury.
Always discon-
nect the tool
from the power
source when
unattended,
!
WARNING
performing any maintenance or
repair, clearing a jam, or moving the
tool to a new location. Always
reconnect the air line BEFORE load-
ing any fasteners. Do not load the
tool with fasteners when either the
trigger is depressed or the Work
Contact Element (WCE) is engaged.
The tool could eject a fastener caus-
ing death or serious personal injury.
Always fit tool
with a fitting
or hose cou-
pling on or
near the tool in
such a manner
that all com-
pressed air in the tool is discharged
at the time the fitting or hose cou-
pling is disconnected. Do not use a
check valve or any other fitting which
allows air to remain in the tool. Death
or serious personal injury could occur.
Never place hands or
any other body parts in
the fastener discharge
area of the tool. The
tool might eject a fas-
tener and could result
in death or serious personal injury.
Never carry the
tool by the air
hose or pull the
hose to move the
tool or a compres-
sor. Keep hoses
away from heat,
oil and sharp edges. Replace any
hose that is damaged, weak or
worn. Personal injury or tool dam-
age could occur.
MXN10400
Operating Instructions
• REQUIRES:
0.8 SCFM with 10 fas-
teners per minute @ 90 psi
• AIR INLET:
1/4” NPT
• FASTENER SIZE RANGE:
3/8” to
1 1/4”
• MAGAZINE CAPACITY:
100 fasteners per load, 18 gauge
• STAPLES:
1/4” crown
• WEIGHT:
2 lbs., 15 oz.
• LENGTH:
10 1/2”
• HEIGHT:
9 1/2”
• MAXIMUM PRESSURE:
100 psi
• PRESSURE RANGE:
60 - 100 psi
Tool Components And Specifications
Cap exhaust
O
CO
2
100 psi
MAX.
Warning label
Latch button
Magazine
Fastener discharge area
Work contact element (WCE)
Trigger
Quick clear nose
Adjustable depth control
(not visible)
Nozzle
shield
