MasterCraft 058-9847-6 User manual

model no. 058-9847-6
OPERATING
MANUAL
IMPORTANT:
For your own safety, read and follow all of the Safety Guidelines
and Operating Instructions before operating this nailer. Keep this
manual for future reference.
AIR-POWERED COIL
FRAMING NAILER

3
TABLE OF CONTENTS
4
5
9
10
13
14
21
24
26
27
28
TABLE OF CONTENTS
TECHNICAL SPECIFICATIONS
SAFETY GUIDELINES
KEY PARTS DIAGRAM
TECHNICAL INFORMATION
TYPES OF NAILS
OPERATING INSTRUCTIONS
MAINTENANCE
TROUBLESHOOTING
EXPLODED VIEW
PARTS LIST
WARRANTY

54
SAFETY GUIDELINES TECHNICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS
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.
Make sure you read and understand this manual before using this tool. Make sure other users
read and understand this manual before they use the tool.
SAFETY GUIDELINES
PERSONAL SAFETY
Potential hazard that will result in serious
injury or death.
Potential hazard that could result in
serious injury or death.
Potential hazard that may result in
injury or damage to equipment.
Note: The word “Note” is used to inform the readers of something
they need to know about the tool.
WARNING!
CAUTION!
DANGER!
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.
LOADING CAPACITY
FASTENER DETAILS
OPERATING PRESSURE
AIR CONSUMPTION
WEIGHT
AIR INLET
1 coil (225 – 300 nails)
70 – 120 PSI (4.8 – 8.3 bar)
0.088 CF/cycle @ 90 PSI
8 Ib 9 oz (3.9 kg)
3/8"NPT
model no. 058-9847-6 | contact us 1-800-689-9928
CF: Cubic Feet (the volumetric flow rate of air corrected to standardized conditions of
temperature and pressure).
NPT: National Pipe Thread.
(2 x 0.099" to 3 1/4 x 0.131")
15° wire weld collated full-head nails

76
Do not use oxygen or any other combustible or bottled
gas 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. Use a minimum of 25' (7.6 m) of
hose to connect the tool to only compressor. Failure to
comply will result in serious injury or death.
Risk of inhalation: Never directly inhale the air produced by the
compressor.
Risk of electric shock: Do not expose a compressor to rain.
Store it indoors. Disconnect the compressor from the power
source before servicing. The compressor must be grounded.
Do not use grounding adaptors.
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.
Do not point the tool towards yourself or other people, even when the tool
has stopped. Keep hands, feet, and all other parts of the body clear from
work area.
Do not attempt to clear nailer jams while the air hose is connected.
Do not keep the trigger or the safety stand pressed while loading nails.
Unintentional firing of a nail could cause serious personal injury or death.
Risk of personal injury: Do not direct compressed air from the air hose
towards the user or other people or animal.
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 and pets away from the
compressor at all times.
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 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 the tank after each use. Do not weld
nor repair the tank. Relieve all pressure in the hose
before removing or attaching accessories.
Do not allow inexperienced or untrained individuals to operate an air-
powered framing nailer or any other air-powered tool.
Keep hands and other parts of the body away from the firing head
during use. Keep hands, feet, and all other parts of the body at least
8" (20 cm) away from the firing head. Nails or objects in the
workpiece can cause serious injury if they are deflected by the
workpiece or if they are driven away from the point of entry.
Do not overload the tool. Allow the tool to operate at its optimum
speed for maximum efficiency.
Locate the compressor in a well-ventilated area for cooling, at a
minimum of 12" (30 cm) away from the nearest wall.
Protect the air hose and the power cord from damage and puncture.
Inspect them for weak or worn spots before every usage, and replace
them if necessary.
Always wear eye and hearing protection when using the air
compressor. Failure to do so may result in hearing loss.
Do not carry the compressor while it is running.
Do not operate the compressor if it is not in a stable position.
Do not operate the compressor on a rooftop or in an elevated position
that could allow the unit to fall or be tipped over.
Always replace a damaged gauge before operating the unit again.
SAFETY GUIDELINES
WARNING!
DANGER!
SAFETY GUIDELINES SAFETY GUIDELINES
model no. 058-9847-6 | contact us 1-800-689-9928
Never point nailer toward yourself or anyone else.
Always assume the nailer contains fasteners. Never point the nailer
toward yourself or anyone else, whether it contains fasteners or not. If
fasteners are mistakenly driven, it can lead to severe injuries.
Never engage in horseplay with the nailer. Respect the nailer as a
working implement.
Never carry with finger on trigger.
Remove finger from trigger when not driving fasteners. Never carry the
nailer with finger on trigger since you could drive a fastener
unintentionally and injure yourself or someone else. Always carry the
nailer by the handle only.
Potential hazard that will result in serious injury or death.

98
CAUTION!
Potential hazard that may result in injury or damage to
equipment.
Disconnect the tool from the air supply and turn off the
compressor before performing any maintenance,
loading or changing nails, 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 injury
or damage to equipment.
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 injury.
Note: Recycle unwanted materials rather than disposing of them as waste. Sort
the tools, hoses, and packaging in specific categories and take them to the local
recycling centre or dispose of them in an environmentally safe way.
SAFETY GUIDELINES KEY PARTS DIAGRAM
model no. 058-9847-6 | contact us 1-800-689-9928
1
2
3
4
5
6
7
8
9
1
13
14
15
16
17
18
10
11
12
3
4
5
6
7
89
10 11
12
13
14
15
16
17
18
2
Knob
Nail Holder
Magazine Cover
Magazine Assembly
Air Plug
Cap
Trigger
Valve part
Body
Exhaust Cover
Piston
Piston O-ring
Driver Blade
Nose
Adjuster
Push Lever (A)
Outlet (Firing Head)
Dust Cover

1110
Compatible compressors
Air system
General use
GUIDELINES FOR PROPER USE AND OPERATION
Potential hazard that could result in serious injury or death.
MASTERCRAFT®
Quick connector
Quick coupler
Air hose
Lubricator
Regulator (0 to 8.5 bar)
Filter
Cut-off valve
Air compressor
Air-powered
Coil Framing Nailer
Always use clean, dry, regulated, compressed air at 4.8 to 8.3 bar (70 to 120 PSI).
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!
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 death.
TECHNICAL INFORMATION TECHNICAL INFORMATION
model no. 058-9809-8 | contact us 1-800-689-9928
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 6.3 CFM @ 90 PSI to ensure the compressor
can run continuously with the Mastercraft®Air-powered Coil Framing Nailer.
Air Compressor
Size and Power 1 1/2–2 HP 2 1/2 HP 3+ HP
4–6 Gallons
8–11 Gallons
15+ Gallons
Light-duty and
intermittent use
Light-duty and
intermittent use
Medium-duty and
intermittent use
Light-duty and
intermittent use
Medium-duty and
intermittent use
Heavy-duty and
continuous use
Light-duty and
intermittent use
Medium-duty and
intermittent use
Heavy-duty and
continuous use
Wood Density
Nail Size Compressor Air Pressure
>0.6 g/cm3
≤0.6 g/cm3
<2 1/2" (63 mm)
≥2 1/2" (63 mm)
<2 1/2" (63 mm)
≥2 1/2" (63 mm)
100 PSI (6.9 bar)
70 PSI (4.8 bar)
110 PSI (7.6 bar)
110 PSI (7.6 bar)
model no. 058-9847-6 | contact us 1-800-689-9928
This Mastercraft®Air-powered Coil Framing Nailer drives 2 to 3 1/4" wire weld collated
full-head nails. Used for construction work such as wall sheathing, roof decking, subflooring,
mobile and modular home construction, making of wooden boxes, pallets and drums, packing
operations in manufacturing plants, and for other types of general packing and crating work.
A selective actuation switch was added to improve functionality and ensures proper nail
placement, and a steel tool-less depth of drive dial instead of plastic improves durability.
The side load magazine and open nose design offer convenience, while the plastic shield offers
safety, deflecting wire collation away from the user.

1312
This Mastercraft®Air-powered Coil Framing Nailer drives 2 to 3 1/4” wire weld collated
full-head nails.
WARNING!
WARNING!
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.
Read this Instruction Manual carefully before using the air-powered nailer.
• Read and follow all the safety instructions at the beginning of this manual. Inspect the
air-powered 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.
•
•
•
•
•
Potential hazard that could result in serious injury or death.
• 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.
Note: Icons are colour coded. Please refer to the actual tool for the
specific colour.
Potential hazard that could result in serious injury or death.
• The use of any other types of nails will cause the nailer to
jam and could lead to serious injury or death.
TECHNICAL INFORMATION TYPES OF NAILS
model no. 058-9809-8 | contact us 1-800-689-9928
ACCEPTABLE NAILS
Length: 2 x 0.099" – 3 1/4 x 0.131" (50 to 83 mm) Angle: 15°
NAIL TYPE ICONS
These icons are used to select the proper nails for this specific nailer.
model no. 058-9847-6 | contact us 1-800-689-9928
15
WIRE-WELD-COLLATED
FULL-HEAD NAILS
.099"
(2.5 mm)
2" (50 mm)
.236"
(6 mm)
.131"
(3.3 mm)
3 1/4" (83 mm)
.283"
(7.2 mm)

15
model no. 058-9338 | contact us 1-800-689-9928
14
Note:
Before loading nails in the magazine, adjust the plate. If the magazine cover
is forcibly closed without adjusting the plate correctly, the nail holder may
be damaged.
Be careful not to deform the collated wires and not to disengage the nails
with the guide surface. Otherwise, the nail guide will not close correctly.
DANGER!
Loading nails
Potential hazard that will result in serious injury or death.
DANGER!
Never place your hands or feet closer than 8” (20 cm) from firing
head when using.
Do not drive nails on top of other nails or with nailer at too steep
an angle. Nails can ricochet and hurt someone.
In order to avoid double fire or unwanted ejection of a nail due to
bouncing of the nailer, do not push nailer on workpiece using
recoil, take nailer away from workpiece with strong force, or
release trigger quickly when performing trigger fire.
Do not drive nails from both sides of a wall at the same time.
Nails can be driven into and through the wall and hit a person on
the opposite side.
Never drive nails into thin boards or near corners and edges of
workpiece. Nails can be driven through or away from workpiece
and hit someone.
Never use nailer which is defective or operating abnormally.
Never use nailer as hammer.
OPERATING INSTRUCTIONS OPERATING INSTRUCTIONS
1. Disconnect the tool (1) from the air
supply (2). Grip the nail guide and knob
with finger, press the knob down and
swing the nail guide open to open the
magazine cover (Fig. A).
2. Adjust the position of the plate to accomodate the
nail length. The nail will not feed smoothly if the
plate is not correctly adjusted.
Turn the nail holder about 90 degrees
counter-clockwise.
The nail holder slides vertically up or down. Lift or
lower the nail holder to hold different length nails.
Adjust the plate to the nail length reference
points on the magazine cover and turn the nail
holder 90 degrees clockwise until you hear “click”.
4.① Uncoil enough nails to reach the driving hole.
② Insert the first nail into the driving hole and the second
nail between the two pawls of the feeder.
③ Fit the nail heads in the guide slot.
④ Pulling the nails to the right, swing the nail guide closed.
⑤ Close the magazine cover first, and then swing the nail
guide closed.
⑥ Lock the knob correctly (Fig. D).
Fig. A
Fig. B
model no. 058-9847-6 | contact us 1-800-689-9928
Disconnect the tool from the compressed air source before
loading nails.
Do not point the tool towards the operator or other people
while changing nails.
Do not hold the tool with the trigger pressed while changing nails.
Failure to comply will lead to serious injury or death.
When loading nails into nailer: do not pull trigger, do not depress
push lever, and keep nailer pointed downward.
Potential hazard that will result in serious injury or death.
Knob
Nail guide Magazine cover
3. Place the nail coil into the magazine.
Uncoil enough nails to reach the
driving hole (Fig. C).
Fig. C
Fig. D
Magazine
Nail holder
Nails
Nail guide
First nail 3
1
2
4
2Feeder
Guide surface
Driving hole Guide slot
Nail holder
Magazine
31
2
2"
21/4" 23/8"
21/2" 23/4"
3" 31/4"
①
②
③

1716
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
model no. 058-9809-8 | contact us 1-800-689-9928
model no. 058-9847-6 | contact us 1-800-689-9928
Testing the nailer
(1) DISCONNECT AIR HOSE FROM NAILER.
REMOVE ALL NAILS FROM NAILER.
●All screws must be tightened. If any
screws are loose, tighten them (Fig. F).
●The push lever and trigger must move
smoothly (Fig. G).
(2) Adjust the air pressure to 70 PSI (4.9 bar
or 5 kgf/cm2). Connect the air hose.
●THE NAILER MUST NOT LEAK AIR.
(3) With finger off the trigger, depress the
push lever against the workpiece (Fig. I).
●THE NAILER MUST NOT OPERATE.
(4) Separate the push lever from the wood.
Point the nailer downward, pull the trigger
and then wait in the position for 5 seconds or longer.
Then depress the push lever against the wood (Fig. L).
●THE NAILER MUST OPERATE
(6) Remove all nails from nailer.
Do not push or rest push lever against any surface or switching device will not turn.
Do not force or use any tools to turn switching device.
Move switching device completely to the leftward position (contact actuation mechanism).
(7) With the nailer off the workpiece, pull the trigger.
Next, depress the push lever against the workpiece.
Now pull the trigger.
●THE NAILER MUST OPERATE.
(8) If no abnormal operation is observed, you may load nails in the nailer.
Drive nails into a test piece that is the same type of material that will be used in the actual application.
●THE NAILER MUST OPERATE PROPERLY.
Fig. F
Fig. L
Fig. G
Before actually beginning the nailing work, test the nailer by using the check list below. Conduct the
tests in the following order. If abnormal operation occurs, stop using the nailer and contact a service
centre immediately.
WARNING!
●Never use nailer unless push lever is operating properly.
Always wear eye protection.
Push lever
Trigger
Do not connect
air hose
Fig. I
Fig. H
Do not pull trigger
Depress
push lever
Pull trigger
Rightward position
Switching device
(5) Without touching the trigger, depress the push
lever against the workpiece. Next pull the trigger
(Fig. M).
Fig. M
Leftward position
Switching device
Hole
Remove all nails from nailer.
Do not push or rest push lever
against any surface or switching device
will not turn. Do not force or use tools to
turn switching device.
Move switching device completely to
the rightward position (single sequential
actuation mechanism) (Fig. H).

1918
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
model no. 058-9809-8 | contact us 1-800-689-9928
model no. 058-9847-6 | contact us 1-800-689-9928
Firing modes
Potential hazard that may result in moderate injury or damage to equipment.
WARNING!
Keep your finger off the trigger except when nailing. Serious injury
could result if the push lever accidentally contacts you or others in
work area.
Keep hands and body away from the discharge area. This
Mastercraft®nailer may bounce from the recoil of driving a nail and
unexpectedly drive another nail, possibly causing injury.
Some types of loaded nails can spark out of the muzzle during a nail
driving operation. Exercise caution!
To avoid double firing or accidental firing due to recoil. Do not press
the nailer against the wood with excessive force. Separate the nailer
from wood as it recoils after nailing.
1. Single Sequential fire (single shot)
①Push the switching device close to the trigger
completely as shown in the diagram. Otherwise,
it will be set to contact actuation mechanism.
②Position the nail outlet on the workpiece with
finger off the trigger.
③Push the nailer down until the push lever is
completely depressed.
④Pull the trigger to drive a nail.
○5 Remove finger from the trigger.
⑥ To drive another nail, move the nailer along the
workpiece, repeating steps 2 to 5 as required
(Fig. J).
2. Contact actuation (multiple shots)
①Pull the switching device away from the trigger
until the hole is visible as shown in the diagram.
Otherwise, it will be set to single firing mechanism.
② Pull the trigger with the nailer off the workpiece.
③ Drive a nail by pressing the nailer against the
workpiece to depress the push lever.
④Drive additional nails by moving the nailer along
the workpiece with a bouncing motion.
⑤ Each depression of the push lever will drive a nail.
When the required nails have been driven,
remove finger from the trigger (Fig. K).
The Mastercraft®Air-powered Coil Framing Nailer has two firing modes: sequential fire for single
firing, or bump fire for repetitive, fast firing of nails.
This nailer is equipped with a push lever at the nailing point and will not operate unless the push lever is
depressed (pushed upwards). Each mode requires a different method of operation:
Single sequential actuation mechanism: First, press the push lever against the wood; next, pull the
trigger to drive the nail. After nailing once, nailing will not be possible again until the trigger is released
and pressed again.
Contact actuation mechanism: First, press the push lever against the wood; next, pull the trigger to drive
the nail. Or pull the trigger; next, press the push lever against the wood to drive the nail. If the trigger is
held back, a nail will be driven each time the push lever is pressed against the wood.
Fig. K
Fig. J
Push lever
3
4
Trigger
Pull the trigger
first
2
4
NOTE:
The single sequential actuation mechanism is for use where precision
fastener placement is desired. It may reduce the possibility of bodily injury to
you or others in the work area compared to the bump actuation as it is less
likely to drive an unwanted nail if you keep the trigger pulled and
accidentally bump the push lever against yourself or others.
The single sequential actuation mechanism may also reduce the speed of
operation compared the bump firing and is recommended for inexperienced
users.
Both bump and sequential fire are safe if used as described above
and according to all warnings and instructions.
Always handle nails and package carefully. If nails are dropped, collating
wire may be broken.
After nailing: disconnect air hose from the nailer, remove all nails from the
nailer, add 5-10 drops of pneumatic tool lubricant into the air plug, and open
the petcock on the air compressor tank to drain any moisture.
Rightward position
Switching device
Leftward position
Switching
device
Hole