RGN N851 User manual

1
Operating Manual
--N851 Medium Crown Stapler--
NOTE: Please read and fully understand the instructions in this
manual before operating the pneumatic power tool. Carefully read
through this OPERATOR'S MANUAL to ensure efficient, safe
operation. It is recommended that the Manual be kept readily available
as an important reference when using this tool.

2
IMPORTANT INFORMATION
WARNING: The warnings, cautions and instructions discussed in this instruction
manual cannot cover all possible conditions and situations that may occur. It
must be understood by the operator that common sense and caution are factors
which cannot be built into this product, but must be supplied by the operator.
When using the tool, basic safety precautions should always be followed to reduce the risk of
personal injury and damage to equipment.
Read and understand tool labels and operating instructions, safety precautions and warnings
in this manual before operating or maintaining this nailer.
Failure to follow warnings could result in DEATH or SERIOUS INJURY.
Most accidents that result from the operation and maintenance of nailers are caused by the
failure to observe basic safety rules or precautions. An accident can often be avoided by
recognizing a potentially hazardous situation before it occurs and by observing appropriate
safety procedures.
Basic safety precautions are outlined in the "SAFETY" section of this manual and in the
sections which contain the operation and maintenance instructions. Hazards that must be
avoided to prevent bodily injury or tool damage are identified as DANGERS or WARNINGS on
the nailer and in this manual.
Never allow the nailer to be operated by children or individuals who have not reviewed this
manual.
OPERATE THE NAILER ACCORDING TO THIS MANUAL.
WARNING!
Always follow the tool manufacturer's safety and
maintenance instructions.
Always wear safety glasses with side shields when
operating or servicing tools.
Always disconnect the air supply from the tool and empty
the magazine when servicing tools.
SAVE THIS MANUAL
FOR FUTURE REFERENCE!

3
WARNING:
The operating instructions shall draw attention to the following
a) Only those fasteners listed in the operating instructions may be used in the fastener driving
tools;
NOTE: The fastener driving tool and the fasteners listed in the operating instructions must be
seen as one unit system in terms of technical safety.
b) Only the main energy and the lubricants listed in the operating instructions may be used;
c) Fastener driving tools marked with an inverted equilateral triangle standing on one point
may only be used with an effective safety yoke;
d) Fastener driving tools equipped with contact actuation or continuous contact actuation,
marked with the symbol “Do not use on scaffoldings, ladders”, shall not be used for specific
application for example:
when changing one driving location to another involves the use of scaffoldings, stairs, ladders,
or ladder alike constructions, e.g. roof laths, closing boxes or crates, fitting transportation
safety systems e.g. on vehicles and wagons;
e) For the maintenance of fastener driving tools, only spare parts specified by the
manufacturer or his authorized representative shall be used;
f) Repairs shall be carried out only by agents authorized by the manufacturer or by other
specialists, having due regard to the information given in the operating instructions;
NOTE: Specialists are those who, as a result of professional training or experience, have
sufficient expertise in the field of fastener driving tools and sufficient familiarity with relevant
governmental industrial protection provisions, accident prevention regulations, directives and
generally recognized technical regulations (e.g. CEN- and CENELEC-standards), to be able to
assess the safe working condition of fastener driving tools.
g) Stands for mounting the fastener driving tools to a support for example a work table, shall
be designed and constructed by the stand manufacturer, in such a way that the fastener
driving tool can be safely fixed for the intended use, thus for example avoiding damage,
distortion or displacement.
Additional instructions for fastener driving tools operated by compressed air
a) Fastener driving tools operated by compressed air shall only be connected to compressed
air lines where the maximum allowable pressure cannot be exceeded by a factor of more than
10%, which can for example be achieved by a pressure reduction valve which includes a
downstream safety valve;
b) When using fastener driving tools operated by compressed air, particular attention must be
paid to avoid exceeding the maximum allowable pressure;
c) Fastener driving tools operated by compressed air should only be operated at the lowest
pressure required for the work process at hand, in order to prevent unnecessarily high noise
levels, increased wear and resulting failures;
d) Hazards caused by fire and explosion when using oxygen or combustible gases for
operating compressed air operated fastener driving tools.

4
SAFETY INFORMATION
WARNING:
BEFORE USING THE TOOL, READ CAREFULLY AND UNDERSTAND THE
FOLLOWING SAFETY INSTRUCTIONS.FAILURE TO FOLLOW WARNING
COULD RESULT IN DEATH OR SERIOUS INJURY.
1. WEAR SAFETY GLASSES OR GOGGLES.
Danger to the eyes always exists due to the possibility of dust being blown up by the
exhausted air or of a fastener flying up due to the improper handling of the tool. For
these reasons, safety glasses or goggles shall always be worn when operating the
tool. The employer and/or user must ensure that proper eye protection is worn. The employer
is responsible to enforce the use of eye protection equipmentby the tool operator and all other
personnel in the work area. NOTE: Non-side shielded spectacles and face shields alone do not
provide adequate protection.
2. EAR PROTECTION MAY BE REQUIRED IN SOME ENVIRONMENTS.
As the working condition may include exposure to high noise levels which can lead
to hearing damage, the employer and user should ensure that any necessary
hearing protection is provided and used by the operator and others in the work area.
3. DO NOT USE ANY POWER SOURCE EXCEPT AN AIR COMPRESSOR.
The tool is designed to operate on compressed air. Do not operate the tool on any
other high pressure gas, combustible gases (e.g. Oxygen, acetylene, etc.) since
there is the danger of an explosion. For this reason, absolutely so not use anything
other than an air compressor to operate the tool.
4. OPERATE WITHIN THE PROPER AIR PRESSURE RANGE.
The tool is designed to operate within an air pressure range of 70 psi
to100 psi (5 to 7 bar). The pressure should be adjusted to the type of the
work being fastened. The tool shall never be operated when the operating
pressure exceeds 120 psi. (8.3 bar).
5. DO NOT OPERATE THE TOOL NEAR A FLAMMABLE SUBSTANCE.
Never operate the tool near a flammable substance (e.g., thinner, gasoline, etc.).
Volatile fumes from these substances could be drawn into the compressor and
compressed together with the air and this could result in an explosion.

5
6. DO NOT USE A WRONG FITTING.
The connector on the tool must not hold pressure when air supply is disconnected. If a wrong
fitting is used, the tool can remain charged with air after disconnecting and thus will be able to
drive a fastener even after the line of air is disconnected, possibly causing injury.
7. DISCONNECT THE AIR SUPPLY AND EMPTY THE MAGAZINE WHEN THE TOOL IS
NOT IN USE.
Always disconnect the air supply from the tool and empty the magazine when operation has
been completed or suspended, when unattended, moving to a different work area, adjusting,
disassembling, or repairing the tool, and when clearing a jammed fastener.
8. INSPECT SCREW TIGHTNESS.
Loose or improperly installed screws or bolts cause accidents and tool damage when the tool
is put into operation. Inspect to confirm that all screws and bolts are tight and properly installed
prior to operating the tool.
9. DO NOT TOUCH THE TRIGGER UNLESS YOUR INTEND TO DRIVER A FASTENER.
Whenever the air supply is connected to the tool, never touch the trigger unless you intend to
drive a fastener into the work. It is dangerous to walk around carrying the tool with the trigger
pulled, and this and similar actions should be avoided.
10. NEVER POINT THE DISCHARGE OUTLET TOWARD YOURSELF AND PERSONNEL.
If the discharge outlet is pointed toward people, serious accidents may be caused when
misfiring. Be sure the discharge outlet is not pointed toward people when connecting and
disconnecting the hose. Loading and not loading the fasteners or similar operations.
11. USE SPECIFIED FASTENERS.
The use of fasteners other than specified fasteners will cause the tool malfunction. Be sure to
use only specified fasteners when operating the tool.
12. PLACE THE DISCHARGE OUTLET TO THE WORK PROPERLY.
Failure to place the discharge outlet of the nose in a proper manner can result in a fastener
flying up and is extremely dangerous.
13. KEEP HANDS AND BODY AWAY FROM THE DISCHARGE OUTLET
When loading and using the tool, never place a hand or any part of body in fastener discharge
area of the tool. It is very dangerous to hit the hands or body by mistake.

6
14. DO NOT DRIVE FASTENERS CLOSE TO THE EDGE AND CORNER OF THE WORK
AND THIN MATERIAL
The work piece is likely to split and the fastener could fly and hit someone.
15. DO NOT DRIVE FASTENERS ON THE TOP OF OTHER FASTENERS.
Driving fasteners of the top of other fasteners may cause deflection fasteners which could
cause injury.
16. REMOVING THE FASTENERS AFTER COMPLETING OPERATION
If fasteners are left in the magazine after the completion of operation, there is the danger of a
serious accident occurring prior to the resumption of operation, should the tool be handled
carelessly, or when connecting the air removes all fitting. For this reason, always move the
fasteners away which remaining in the magazine after completion of the operation.
17. CHECK OPERATION OF THE CONTACT TRIP MECHANISM FREQUENTLY IN CASE
OF USING A CONTACT TRIP TYPE TOOL
Do not use the tool if the trip is not working correctly as accidental driving of a fastener may
result. Do not interfere with the proper operation of the contact trip mechanism.
18. WHEN USING THE TOOL OUTSIDE OR ELEVATED PLACE.
When fastening roofs or similar slanted surface, start fastening at the lower part and gradually
work your way up. Fastening backward is dangerous as you may lose your foot place. Secure
the hose at a point close to the area you are going to driver fasteners. Accidents may be
caused due to the hose being pulled inadvertently or getting caught.
19. NEVER USE THE TOOL IF ANY PORTION OF THE TOOL CONTROLS (e.g., TRIGGER,
CONTACT ARM) IS INOPERABLE DISCONNECTED, ALTERED OR NOT WORKING
PROPERLY.
20. NEVER ACTUATE THE TOOL INTO FREE SPACE.
This will avoid any hazard caused by free flying fasteners and excessive strain of the tool.
21. ALWAYS ASSUME THAT THE TOOL CONTAINS FASTENERS.
22. DO NOT USE ON SCAFFOLDINGS LADDERS.
The tool shall not be used for specific application for example:
When changing one driving location to another involves the use of
scaffoldings, stairs, ladders, or
Ladder alike constructions, e.g. roof laths,
Closing boxes or crates,
Fitting transportation safety systems e.g. on vehicles and wagons.

7
TECHNICAL DATA
Type of tool
N851 Medium Crown Stapler
Dimensions
350mm X 100mm X 120mm
Weight (without fasteners)
2.35kgs
Actuation mode
Contact/Single-sequential actuation
Magazine capacity
160 staples
Maximum allowable pressure
8.3 bar (120psi)
Recommended pressure range
5 bar to 7 bar (70psi to 100psi)
Fasteners
Only the staple sizes shown in the table below can be driven with this nailer.
16 Gauge medium crown staple
Applications
Wall sheathing;
Sub-flooring
Roofing decking
Furniture frames
Crate and box assembly and vinyl siding.

8
NAILER CONNECTION AND OPERATION
NOTE: The information contained in this manual is designed to assist you in the safe operation
of the nailer. Some illustrations in this Manual may show details or attachments that are
different from those on your nailer.
Air Supply, Connections and Operating Pressure
Read section titled SAFETY. Make sure of the following before operation: Air Supply
Power Source (Compressor)
Use only clean, dry, regulated compressed air as a power source for this nailer.
NEVER use oxygen or other bottled gases, as an explosion may occur.
Use suitable air compressors used to supply compressed air to this nailer
Moisture or oil in the air compressor may accelerate wear and corrosion in the
nailer.
Drain daily.
Connections
1. Fittings
Install a female coupler to the hose. The female coupler will connect to the quick release that
fits the tool.
2. Filter-Regulator-Lubricator
NEVER connect nailer to pressure which potentially exceeds 120psi.
Filter-regulator-lubricator units supply an optimum condition for the nailer and extend
the nailer life. These units should always be used.
Filter
The filter removes moisture and dirt mixed in compressed air.
Keep the filter clean by maintaining tool regularly.
Darin daily.
Regulator
The regulator controls the operating pressure for safe operation of the nailer.
Inspect the regulator before operation to be sure it operates properly.

9
Nailer Connection and Operation
Lubricator
The lubricator supplies and oil mist to the nailer.
Inspect the lubricator before operation to be sure the supply of lubricant is adequate.
If an inline lubricator is not used, a few drops of oil will need to be added to the nailer
inlet before each use.
3. Air Hose
Air hose must have a minimum working pressure rating of 180 psi.
Hose has a min. ID of 1/4"(ISO 7-1) and max. length of no more than 17'(5 meter).
The supply hose should contain a fitting that will provide "quick disconnecting" from the
male plug on the tool.
Operating Pressure
Recommended operating pressure range is 70 to 100 psi.
Maximum permissible operating pressure is 120 psi.
Select the operating pressure within this range for the best fastener performance. The
nail length and thickness and the hardness of the wood are factors in determining what
the pressure should be set at.
Do not exceed this recommended operating pressure.
NOTE: Dirt and water in the air supply are major causes of wear in the tool.
An air filter will help to get the best performance and minimum wear from the tool. Frequent,
but not excessive, lubrication is required for the best performance. Oil added through the air
line connection will lubricate the internal parts.
WARNING
NEVER connect nailer to pressure which potentially exceed
120psi.
DO NOT USE THE WRONG FITTING ON NAILER.
The nailer and air hose must have a hose coupler so that all
pressure is removed from the nailer when the coupler is
disconnected. The connector on the tool must not hold pressure
when the air supply is disconnected. If the wrong fitting is used,
the tool can remain charged with air after disconnecting and thus
will be able to drive a nail even after the air line is disconnected,
possibly causing injury.
DANGER
NEVER use oxygen or other bottled gases, as an
explosion may occur.

10
INSTRUCTION FOR OPERATION
1. Before operation
(1) Wear safety glasses or goggles
(2) Do not connect the air supply
(3) Inspect screw tightness
(4) Check operation of the contact arm & trigger if moving smoothly
(5) Connect the air supply
(6) Check the air-leakage.(the tool must not have the air-leakage.)
(7) Hold the tool with finger-off the trigger, then push the contact arm against the work-
pieces.(the tool must not operate.)
(8) Hold the tool with contact arm free from work-piece and pull the trigger.(the tool must not
operate.)
2. Operation
Keep hands and body away from the discharge outlet when driving the fasteners because of
dangerous of hitting the hands or body by mistake.
Nail loading
(1) Disconnect the air hose.
(2) Pull the NAIL FEEDER (322000) down to MAGAZINE (421260) end, fix NAIL FEEDER
(322000) on PUSHER POST (321990).
(3) MAGAZINE COVER (421250) is opened, feed a strip staples into MAGAZINE (4212600),
slide it towards to NOSE (210630), then feed the second strip, this magazine is capable for two
strips staples.
(4) Press PUSHER POST (321990) down, the NAIL FEEDER (322000) is returned back to
push staples into NOSE (210630).
(5) Check the staples displayed in magazine compactly and smoothly.
(6) Connect the air hose.
Test operation
(1) Adjust the air pressure at 70psi. (5 bar) and connect the air supply.
(2) Without touching the trigger, depress the contact arm against the work-piece. Pull the
trigger.(the tool must fire the fastener.)
(3) With the tool off the work-piece, pull the trigger. Then depress the contact arm against the
work-piece.(the tool must fire the fastener.)
(4) Adjust the air pressure as much as the lowest possible according to the diameters and
length of fastener and the hardness of work-piece.

11
MAINTENANCE AND INSPECTION
Read the section title SAFETY.
SERVICE AND REPAIRES
All quality tools will eventually require servicing or replacement of parts due to wear from
normal use. It is recommended that these operations should be performed by a professional
technician.
NOTE: The information contained in this Manual is designed to assist you in the safe
maintenance of the nailer. Some illustrations in this Manual may show details or attachments
that are different from those on your nailer.
WARNING: Disconnect air hose and remove nails from nailer when:
Doing maintenance and inspection
Cleaning a jam
Inspecting the magazine
1. DISCONNECT AIR HOSE.
2. Clean the magazine. Remove dust which may have accumulated in the magazine.
3. Lubricate the nailer rail with nailer lubricant.
Clearing a jam
Remove a jammed nail in the following order:
1. DISCONNECT AIR HOSE.
2. Remove all nails.
3. Remove the jammed nail with a slotted head screwdriver.
4. In case of frequent jams, contact an authorized service center.
A qualified person should perform repair and maintenance
Periodic maintenance to be performed:
Check that the piston bumper is operating normally. A damaged piston bumper may
cause damages to other component parts.
Check o-rings for wear or damage. Damaged o-rings may affect overall performance.
Make sure all screws are secure. Loose screws may affect overall performance.
When repairing a tool, make sure the internal parts are clean and lubricated.
Storing
When not in use of an extended period, apply a thin coat of the lubricant to the steel
parts to avoid rust.
The nailer should be stored in a warm and dry place when not in use. Do not store the
nailer in a cold weather environment.

12
PARTS LIST-N851
NO.
CODE
Description
NO.
CODE
Description
1
610560
BOLT M6X20(Loctite)
50
321960
BRACKET
2
320940
BUSHING
51
321970
ADJUSTER
3
410280
EXHAUST COVER
52
421080
ADJUSTER DIAL
4
320930
EXHAUST FILTER (A)
53
630180
SNAP RING 4
5
320920
EXHAUST FILTER (B)
54
321740
SAFETY UPPER
6
610230
BOLT M6X30(Loctite)
55
620670
SPRING
7
320910
SIDE PROTECTOR
56
420560
SAFETY UPPER GUIDE
8
110210
CYLINDER CAP
57
640020
ROLL PIN 2.5X10
9
520290
GASKET
58
320110
TRIGGER STEM
10
320890
WASHER
59
510030
O-RING 2.5X1.4
11
620380
COMPRESSION SPRING
60
420080
TRIGGER VALVE CAP
12
420610
HEAD VALVE PISTON
61
620050
TRIGGER VALVE SPRING
13
320900
PISTON STOP SEAT
62
330010
TRIGGER VALVE BUSHING
14
410270
PISTON STOP
63
510240
O-RING 8.6X1.9
15
410260
HEAD VALVE SLEEVE
64
510210
O-RING 6.3X1.8
16
510710
O-RING 54X3.1
65
420090
TRIGGER VALVE CAGE
17
510560
O-RING 41.2X2.65
66
510410
O-RING 18.3X2.65
18
321910
WASHER
67
510380
O-RING 16X1.8
19
410570
BUMPER
68
640250
STRAIGHT PIN B3X15
20
321920
DRIVER BLADE(Loctite)
69
320880
CONTACT PLATE
21
310370
PISTON
70
620370
SPRING
22
510510
O-RING 37.5X3.55
71
110190
ADJUST BUTTOM
23
310180
CYLINDER
72
323220
DOWEL PIN
24
520130
CYLINDER SEAL
73
420590
TRIGGER BRACKET
25
510680
O-RING 50X2.65
74
420580
TRIGGER
26
110620
BODY
75
610040
BOLT M4X20
27
511010
O-RING 63.8X3.1
76
421240
MAGAZINE COVER AXIS
28
420600
CYLINDER RING
77
421250
MAGAZINE COVER
29
410460
HANDLE GRIP
78
610310
NUT M4(Nylock)
30
630110
SNAP RING 32
79
321980
MAGAZINE BRACKET
31
420540
FILTER
80
620860
STOPPER SPRING
32
110310
END CAP
81
321990
PUSHER POST
33
640180
ROLL PIN 3X30
82
610120
BOLT M5X25
34
321810
STEP PIN
83
620870
DOOR SPRING
35
420950
PIN CAP
84
620880
ROLL SPRING
36
420650
SAFETY GUIDE
85
322000
PUSHER
37
210600
NOSE BASE
86
510140
O-RING 5.15X1.8
38
610220
BOLT M6X25(Loctite)
87
620740
SPRING
39
210610
NOSE COVER （A）
88
630190
SNAP RING 3
40
322870
LOCK SWITCH
89
610320
NUT M5(Nylock)
42
210620
NOSE COVER （B）
90
510180
O-RING 5.8X1.9
43
640160
ROLL PIN 3X25
91
610110
BOLT M5X22
44
210630
NOSE
92
421260
MAGAZINE
45
610100
BOLT M5X20
93
510640
O-RING 47.5X1.8
46
321940
SAFETY
94
323130
STRAIGHT PIN
47
640140
ROLL PIN 3X22
95
410880
STRAIGHT PIN CAP
48
321950
NAIL GUIDE
P1
D321921
DRIVER UNIT
49
610060
BOLT M5X10(Loctite)
P2
T420091
TRIGGER VALVE

13
TOOL SCHEMATIC-N851

14
IMPORTER:
NOBE ApS
Bjødstrupvej 10
DK –8410 Rønde
Denmark
Tel: + 45 8615 1913
E-Mail: [email protected]
www.nobe.dk / www.rgneurope.com
--Medium Crown Stapler N851--
2016