INSTRUCTION MANUAL
AIR-POWERED
MINI PALM-GRIP NAILER
058-8987-8
TABLE OF CONTENTS
2
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
QUICK START GUIDE
TECHNICAL SPECIFICATIONS 3
SAFETY GUIDELINES 4–9
KEY PARTS DIAGRAM 10
IMPORTANT INFORMATION 11–13
TYPES OF FASTENERS 14
OPERATING INSTRUCTIONS 15–17
MAINTENANCE 18–19
TROUBLESHOOTING 20–21
EXPLODED VIEW 22
PARTS LIST 23
WARRANTY 24–25
SAFETY GUIDELINES
4
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
Safety guidelines
This manual contains information that relates to PROTECTING PERSONAL SAFETY and PREVENTING
EQUIPMENT PROBLEMS. It is very important to read this manual carefully and understand it
thoroughly before using the product. The symbols listed below are used to indicate this information.
Note- The word “Note” is used to inform the
reader of something he/she needs to know about
t
he tool.
PERSONAL SAFETY
These precautions are intended for the personal safety of the user and others working with the user.
Please take time to read and understand them.
DANGER!
P
otential hazard that will result in serious
injury or loss of life.
WARNING!
P
otential hazard that could result in
serious injury or loss of life.
CAUTION!
P
otential hazard that may result in
m
oderate injury or damage to equipment.
SAFETY GUIDELINES
5
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
SAFETY GUIDELINES
DANGER!
Potential hazard that will result in serious injury or loss of life.
• Keep children away from the work area. Do not allow children to handle
power tools.
• Do not use this tool in the presence of flammable liquids or gases. Sparks
that are created during use may ignite gases.
• D
o not point the tool towards yourself or other people with the nail loaded.
• D
o not keep the tool pressed while loading the nail.
• D
o not disconnect or reconnect the air hose with the tool pressed or with a
n
ail in the nail guide. The Air-powered Mini Palm-grip Nailer may fire when
it is reconnected to the air supply.
• Do not use oxygen or any other combustible or bottled
g
as to power air-powered tools. Failure to observe this
warning can cause explosion and serious personal injury
or death. Use only compressed air to power air-powered
tools.
Failure to comply will result in serious injury or loss
of life.
• Risk of electric shock: Do not expose a compressor to rain. Store it indoors.
Disconnect the compressor from the power source before servicing.
Compressor must be grounded. Do not use grounding adaptors.
Oxygen
Hydrogen
Explosive
Combustible
MC-OM-02
SAFETY GUIDELINES
6
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
• Risk of personal injury: Do not direct compressed air from the air hose
towards the user or other persons.
• Risk for breathing: Never directly inhale the air produced by the compressor.
• Risk of bursting: Do not adjust the pressure switch or safety valve for any
reason. They have been preset at the factory for this compressor’s maximum
pressure. Tampering with the pressure switch or the safety valve may cause
personal injury or property damage.
• Risk of burns: The pump and the manifold generate high temperatures. In
order to avoid burns or other injuries, do not touch the pump, the manifold,
or the transfer tube while the compressor is running. Allow the parts to cool
down before handling or servicing. Keep children away from the compressor
at all times.
• Risk of bursting: Make sure the regulator is adjusted so
that the compressor outlet pressure is set lower than the
maximum operating pressure of the tool. Before starting
the compressor, pull the ring on the safety valve to make
sure the valve moves freely. Drain water from tank after
each use. Do not weld or repair tank. Relieve all pressure
in the hose before removing or attaching accessories.
MC-OM-22
SAFETY GUIDELINES
7
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
WARNING!
Potential hazard that could result in serious injury or loss of life.
•
D
o not allow inexperienced or untrained individuals to operate an
Air-powered Mini Palm-grip Nailer or any other air-powered tool.
• K
eep hands and other parts of the body away from the nail guide during
u
se. Keep hands, feet, and all other parts of the body at least 8"
(20 cm)
away from the firing head. Objects in the workpiece can cause serious injury
if they cause the nails to be deflected or to be driven away from the point of
entry.
• D
o not connect the tool to a compressed air source with a pressure output
t
hat is higher than 120 psi.
• D
o not drive fasteners on top of a nailed fastener. The fastener may
ricochet, causing serious personal injury.
• D
o not drive fastener on scaffoldings, ladders, or such similar construction,
not working on airtight case, and vehicles.
• U
se only genuine parts and accessories recommended by the manufacturer.
• U
se only nails of the proper size and gauge, as specified in this manual
(see
section “Technical specifications”)
. Failure to comply could lead to serious
injury or loss of life.
SAFETY GUIDELINES
8
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
CAUTION!
Potential hazard that may result in moderate injury or damage to
e
quipment.
• Carry the tool by the handle only, keeping fingers away from the trigger. Do
not carry the tool by the hose, magazine, or any other parts.
• K
eep proper footing at all times in order to ensure correct balance.
• D
o not drive nails close to the edge of the workpiece. The workpiece may
split, which could allow the nail to fly free or ricochet and cause serious
personal injury.
• Do not use a tool that is leaking air, that has missing or damaged parts, or
that requires repairs. V
erify that all screws are securely tightened.
• For optimal safety and tool performance, i
nspect the tool daily in order to
ensure free movement of the trigger, safety mechanisms, and springs.
• K
eep the work area clean. A cluttered or dirty workbench may lead to an
accident. Floors should be kept clear.
• T
his tool is not a toy. Use it with caution.
• Handling and storage of oil: Use with adequate ventilation. Avoid contact of
oil with eyes, skin, and clothing. Avoid breathing spray or mist. Store in a
tightly closed container in a cool, dry, well-ventilated area free from
incompatible substances.
• T
ripping hazard: The air hose may become a tripping hazard when it is
placed in the work area. Use care when walking in the work area.
SAFETY GUIDELINES
9
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
Note: Recycle unwanted materials rather than disposing of them as waste. Sort the tools, hoses, and
packaging in specific categories and take to the local recycling centre or dispose of in an
environmentally safe way.
CAUTION!
Potential hazard that may result in moderate injury or damage to
e
quipment.
• Disconnect the tool from the air supply and turn off the
c
ompressor before performing any maintenance or changing
accessories, when the tool is not in use, when it is being
handed to another person, and when it is left unattended.
Failure to comply may result in moderate injury.
• Use safety goggles and ear protection:
Wear safety glasses with side shields when operating the
tool and verify that others in the work area are also wearing
safety glasses. Safety glasses must conform to American
National Standards Institute (ANSI Z87.1) requirements and
must provide protection from flying particles from the front
and the sides.
Air-powered tools are loud and the sound can cause hearing
damage. Always wear ear protection to help prevent hearing
damage and loss. Failure to comply may result in moderate
injury.
MC-588987-09
MC-OM-01
KEY PARTS DIAGRAM
10
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
No. Description No. Description
1 Air inlet plug 3 Turn buckle
2 Magnet
MC-588987-01
1
2
3
IMPORTANT INFORMATION
11
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
Compatible compressors
GUIDELINES FOR PROPER USE AND OPERATION
Be sure to use a proper air compressor with Mastercraft
®
air-powered tools. The compressor should
be able to supply a minimal air delivery of 4.0 SCFM @ 90 psi to ensure the compressor can run
continuously with the Mastercraft Air-powered Mini Palm-grip Nailer.
General use
This Mastercraft® Air-powered Mini Palm-grip Nailer is an air-powered tool with a new and
advanced design, compact structure, and superior technology which enables the tool to drive nails
into the workpiece without a trigger. The tool is dexterous, safe, and reliable to operate. The tool is
ideal for nailing at tight corners, toe-nailing, joist hanger installations, etc.
Air Compressor
Size & Power
1 1/2 – 2 HP 2 1/2 HP 3 HP and more
4 – 5 Gallons
Light-duty and
intermittent use
Light-duty and
intermittent use
Light-duty and
intermittent use
8 – 11 Gallons
Light-duty and
intermittent use
Heavy-duty and
continuous use
Heavy-duty and
continuous use
15 Gallons
and more
Medium-duty and
intermittent use
Heavy-duty and
continuous use
Heavy-duty and
continuous use
W
ood density Nail size Compressor air pressure
!0.6g/cm3
21/2" (63 mm) brad nails 90 psi
t21/2" (63 mm) brad nails 100 psi
d0.6g/cm3
21/2" (63 mm) brad nails 80 psi
t21/2" (63 mm) brad nails 90 psi
IMPORTANT INFORMATION
12
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
Air system
• Always use clean, dry, regulated, compressed air at 70 to 100 psi (5 to 7 bar).
• Do not exceed the maximum or minimum pressures. Operating the tool at the wrong pressure
(too low or too high) will cause excessive noise or rapid wear.
WARNING!
Potential hazard that could result in serious injury or loss of life.
• Keep hands and other parts of the body away from the tool’s discharge and
working areas when connecting the air supply. Failure to comply could lead to
serious injury or loss of life.
N
o. Description No. Description
1
Mastercraft
®
Air-powered Mini Palm-grip
Nailer
6 Regulator (0 to 8.5 bar)
2 Quick connector 7 Filter
3 Quick coupler 8 Cut-off valve
4 Air hose 9 Air compressor
5 Lubricator
2
5
7
1
3
3
6
8
9
4
MC-588987-02
IMPORTANT INFORMATION
13
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
Read this Instruction Manual carefully before using the Air-powered Mini Palm-grip Nailer.
• Read and follow all the safety instructions at the beginning of this manual. Inspect the
Air-powered Mini Palm-grip Nailer prior to each use in order to
– ensure that the proper power source is being used.
– verify that the tool is in proper working order.
• It is recommended that a filter-regulator-lubricator be used and be located as close to the tool
as possible.
• If a filter-regulator-lubricator is not installed, place up to 6 drops of compressor oil into the air
inlet plug before each use.
• If a filter-regulator-lubricator is installed, keep the air filter clean. A dirty filter will reduce the
air pressure to the tool, which will cause a reduction in power, efficiency, and general
performance.
• For optimal performance, install a quick connector to the tool and a quick coupler on the
hose, if applicable.
• Verify that all of the connections in the air supply system are sealed in order to prevent air
leakage.
WARNING!
Potential hazard that could result in serious injury or loss of life.
• Do not use the tool if it is not in proper working order.
• Do not use oxygen or any other combustible or bottled gas to power this tool.
• Do not use this tool in the presence of any flammable liquids or gases.
• Keep hands and other parts of the body away from the firing head during use.
• Do not point the tool towards the operator or other people.
• Do not attempt to clear a jammed nail when the air hose is connected.
• Do not drive a nail on top of an existing nail. Failure to comply could lead to
serious injury or loss of life.
TYPES OF FASTENERS
14
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
This Mastercraft® Mini Palm-grip nailer drives 90 mm (3 1/2").
ACCEPTABLE FASTENERS
This nailer can be used with a variety of shank types (e.g., ring, smooth, spiral) and a variety of
coatings or nail compositions (e.g., Electro, mechanical, hot-dipped galvanized or stainless steel,
etc.).
N
ails (14 gauge)
WARNING!
Potential hazard that could result in serious injury or loss of life.
• The use of any other types of nails will cause the nailer to jam and could lead
to serious injury or loss of life.
MC-588
9
up to
3 1/2”
OPERATING INSTRUCTIONS
15
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
Loading nails
1. Plug in compressor, turn it on, set the
pressure regulator to 40 psi, attach one
end of the air hose to the compressor
and the other end of the air hose (1) to
the tool (2)
(fig A)
. page 11
(wood density chart)
2. Grip the base of the tool in one hand.
Hold a nail by the shaft (1), and place
the flat head into the nail guide (2). The
nail will be held in place by the magnet
(fig B)
.
DANGER!
Potential hazard that will result in serious injury or loss of life.
• Do not point the tool towards the operator or other people while changing
the nails or after loading the nail.
• Do not hold the tool with the nail guide pressed while changing nails.
Failure to comply will lead to serious injury or loss of life.
MC-588987-03
fig A
1
2
MC-588987-04
fig B
1
2
OPERATING INSTRUCTIONS
16
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
3. Place the pointed end of the nail (1) on
the workpiece (2). Keep your free hand
away from the tool and the nail
(fig C)
.
4. Press the tool straight down. This will
trigger the tool and cause it to hammer
the nail. Continue pressing down until
the nail is driven all the way in
(fig D)
.
MC-588987-05
MC-588987-05
fig C
1
2
MC-588987-05
MC-588987-06
fig D
1
CAUTION!
Potential hazard that may result in moderate injury or damage to
e
quipment.
• Add some drops of pneumatic tool oil into the air inlet for lubrication before
use. Failure to comply may result in moderate injury or damage to equipment.
WARNING!
Potential hazard that could result in serious injury or loss of life.
• Do not operate the tool if the nails are not loaded, as doing so may damage
the tool.
• Load the correct type of nails only. Failure to comply could lead to serious
injury or loss of life.
MAINTENANCE
18
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
Maintenance
DANGER!
Potential hazard that will result in serious injury or loss of life.
• Disconnect the tool from the air compressor before performing maintenance/
service, adjusting, clearing jams, reloading, and when it is not in use.
• Repairs must be performed by a qualified service technician only. Failure to
comply will lead to serious injury or loss of life.
MAINTENANCE
R
EQUIRED
DESCRIPTION
TOOLS OR
M
ATERIALS
R
EQUIRED
MAXIMUM SERVICE INTERVAL
Each Use or
e
very 2 Hrs.
Monthly
As
N
eeded
General inspection –
free movement
Trigger, spring,
safety mechanism
None X
In-depth inspection
Worn or broken
parts
X X
Replace worn or
broken parts
X
Lubrication See below
Pneumatic tool
oil
X
• Lubrication: If the Air-powered Mini Palm-grip
Nailer and the compressor are not equipped with
an in-line lubrication system, place 2 to 6 drops of
pneumatic tool oil into the air inlet before each
work day or after every 2 hours of continuous use,
depending on the characteristics of the workpiece
and type of nails used.
MC-588987-10
MAINTENANCE
19
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
• Air-operated tools must be inspected periodically and worn or broken parts must be replaced
in order to keep tools operating safely and efficiently.
• Inspect and replace worn or damaged O-rings, seals, etc. Tighten all screws and caps
frequently in order to help prevent personal injury.
• Inspect the spring and safety mechanism for free movement on a regular basis in order to
ensure that the safely system is fully functional. Verify that no parts are loose or missing and
no parts are sticking or jammed.
• Keep the nail guide clean and free of any dirt or abrasive particles.
N
ote: When temperatures are below freezing, maintain the tools in a warm condition using any safe,
convenient method.
TROUBLESHOOTING
20
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
Troubleshooting
The following chart lists common operating system issues and solutions. Please read it carefully and
follow all instructions closely.
• Disconnect the tool from the air supply before making any adjustments.
• When replacing O-rings or cylinder, lubricate the tool with pneumatic tool oil before assembly.
• Repairs must be performed by a qualified service technician only.
N
ote: For further repair information, please call 1-800-689-9928.
DANGER!
Potential hazard that will result in serious injury or loss of life.
• If any of the following symptoms appear while the tool is in use, turn it off and
disconnect it from the air supply immediately. Failure to comply will lead to
serious injury or loss of life.
PROBLEM POSSIBLE CAUSES SOLUTIONS
Air leakage.
1. O-rings are worn or damaged.
2. Screws are loose.
1. Inspect and replace the O-rings.
2. Tighten the screws.
Attack strength
is not enough.
1. Air pressure is not in specified
range.
2. The O-ring beside slip set is
worn.
1. Adjust the air pressure to specified range.
2. Replace the O-ring.
The tool does not
drive out the nails
when connected to
air supply.
1. Insufficient air supply.
2. O-rings are worn or damaged.
1. Adjust the air pressure.
2. Inspect and replace the O-rings.
TROUBLESHOOTING
21
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
EXPLODED VIEW
22
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
MC-588987-07
1
8
14
18
19
21
22
20
17
6
9
10
11
12
13
2
3
4
5
6
4
7
16
15
PARTS LIST
23
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
If any parts are missing or damaged, or if you have any questions, please call 1-800- 689-9928.
No. Description Qty. No. Description Qty.
1 Bolt M5 X 20 4 12 Piston 1
2 Washer 4 13 Bumper 1
3 Cylinder cover 1 14 Cylinder cover washer 1
4 O-ring 33.6 X 1.8 2 15 Gun body 1
5 Rubber gasket 1 16 Air inlet plug 1
6 O-ring 37.5 X 1.8 2 17 Air plug cover 1
7 Slip set 1 18 Spring washer 1
8 Sealing washer 1 19 Stop collar 1
9 Cylinder 1 20 Magnet 1
10 O-ring 23.5 X 2 1 21 Spring 1
11 O-ring 25 X 2.65 1 22 Turn buckle 1
WARRANTY
24
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
Mastercraft® limited warranty
These warranties are subject to the following conditions and limitations:
a. A bill of sale verifying the purchase and purchase date must be provided.
b. This warranty will not apply to any product or part thereof which is worn or broken or which
has become inoperative due to abuse, misuse, accidental damage, neglect or lack of proper
installation, operation or maintenance (as outlined in the applicable owner’s manual or
operating instructions) or which is being used for industrial, professional, commercial or rental
purposes.
c. This warranty will not apply to normal wear and tear or to expendable parts or accessories
that may be supplied with the product that are expected to become inoperative or unusable
after a seasonable period of use.
d. This warranty will not apply to routine maintenance and consumable items such as, but not
limited to, fuel, lubricants, vacuum bags, blades, belts, sandpaper, bits, fluids, tune-ups or
adjustments.
e. This warranty will not apply where damage is caused by repairs made or attempted by others
(i.e. persons not authorized by the manufacturer).
f. This warranty will not apply to any product that was sold to the original purchaser as a
reconditioned or refurbished product (unless otherwise specified in writing).
This Mastercraft product is guaranteed for a period of 3
years from the date of original retail purchase against
defects in workmanship and materials, except for the
following component.
Component A: Accessories, which are guaranteed for a
period of 1-year from the date of original retail purchase
against defects in workmanship and materials.
Subject to the conditions and limitations described below,
this product, if returned to us with proof of purchase within
the stated warranty period and if covered under this
warranty, will be repaired or replaced (with the same model,
or one of equal value or specification), at our option. We will
bear the cost of any repair or replacement and any costs of
labour relating thereto.
WARRANTY
25
AIR-POWERED MINI PALM-GRIP NAILER 058-8987-8
g. This warranty will not apply to any product or part thereof if any part from another
manufacturer is installed therein or any repairs or alterations have been made or attempted by
unauthorized persons.
h. This warranty will not apply to normal deterioration of the exterior finish, such as, but not
limited to, scratches, dents, paint chips, or to any corrosion or discolouring by heat, or
abrasives and chemical cleaners.
i. This warranty will not apply to component parts sold by and identified as the product of
another company, which shall be covered under the product manufacturer’s warranty, if any.
Additional limitations
This warranty applies only to the original purchaser and may not be transferred. Neither the retailer
nor the manufacturer shall be liable for any other expense, loss or damage, including, without
limitation, any indirect, incidental, consequential, or exemplary damages arising in connection with
the sale, use, or inability to use this product.
Notice to consumer
This warranty gives you specific legal rights, and you may have other rights, which may vary from
province to province. The provisions contained in this warranty are not intended to limit, modify, take
away from, disclaim, or exclude any statutory warranties set forth in any applicable provincial or
federal legislation.
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