Gripnail 7310 User manual

Model 7310 Power Pinner CD Hand Welder
1
POWER PINNER
CD HAND WELDER
7310
OPERATOR’S MANUAL
Copyright: June 24, 201 Revised: May 14, 2018
Gripnail Corporation An Employee Owned Company________________________
97 Dexter Road East Providence, Rhode Island 02914-2045 Tel: [phone] Fax: [phone]
E-mail: [e-mail] Website: www.gripnail.com

Model 7310 Power Pinner CD Hand Welder
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TA LE OF CONTENTS
OPERATOR SAFETY
ELECTRICAL AND PERSONAL SAFETY………………………….…………... ..3
FIRE………………………………………………………………………………….4
MAINTENANCE…………………………………………………………………….4
TRAINING…………………………………………………………………………...4
INSTALLATION………………………………………………………………….. ..4
PRODUCT FEATURES
FEATURES…………………………………………………………………………..5
PRODUCT SPECIFICATIONS
OPERATIONAL AND SAFETY FEATURES……………………………………...5
PRODUCT COMPONENTS
FRONT PANEL……………………………………………………………………...
REAR VIEW….……………………………………………………………………...
OPEN VIEW………………………….………………………………………………7
SET-UP AND WELDING
CONNECTING GROUND CLAMP………………………………………………...8
READY FOR WELDING……………………………………………………………9
VOLTAGE SELECTION……………………………………………………………9
INSPECTING THE WELD…………………………………………………………10
TESTING WELD SETTINGS
TESTING YOUR SETTINGS……………………………………………………….10
SCREEN STATUS INDICATORS………………………………………………………….10
GUN COMPONENTS AND CABLE ASSEMBLIES.……………………………………...11
SERVICE POLICY……………...……………………………………………….……….12
WARRANTY………………………..…………………………………………..…………13

Model 7310 Power Pinner CD Hand Welder
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OPERATOR SAFETY
ELECTRICAL AND PERSONAL SAFETY
Our first concern at Gripnail is the safety of the operators using our equipment. As with most
types of welding equipment, there is always a potential for serious injury if the equipment is mis-
used. Please familiarize yourself with the equipment before operating. Below is a list of a few
safety precautions that should be observed.
1. Read this manual before you begin using the equipment.
2. Do not operate this welder in or near water or damp areas.
3. Do not look directly at the weld pin while welding. Arcing produced by the
welding process could cause flash burns to your eyes and could cause blindness.
4. Wear protective clothing to prevent skin burns from weld slag.
5. Do not touch the weld pin or adjacent area after welding until sufficient time is allowed for
cooling. Otherwise, serious burns may result.
. Do not operate the welder unless all covers are in place.
7. Do not pull or move the welder by the attached cables or damage to the cables will result.
8. Contact the Gripnail Service Department for assistance with replacement parts,
repairs, questions or diagnosing a problem with the welder.
9. Due to potential dangerous electrical input and output, the equipment must be disconnected
from all incoming power when servicing.
10. CAPACITORS STORE ELECTRICAL ENERGY. Check for residual charge before per-
forming any maintenance.
11. Do not use fluids to clean electrical components as these may penetrate the electrical system
and cause shorts.
12. Loud noises from welding can damage hearing. Wear earplugs or other protective gear, if
applicable.
13. Fumes and gases expelled during welding can be hazardous to your health. Make sure weld-
ing is done in a well-ventilated area.
Connection of the unit into service must be in accordance with the setup procedures as detailed
in this manual. Operation of this equipment must be in accordance with all local, regional, and
national safety codes.

Model 7310 Power Pinner CD Hand Welder
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FIRE
During welding, small particles of hot metal can be expelled. Ensure that no combustible mate-
rials are near the welding area.
MAINTENANCE
All cables must be inspected regularly to ensure that no danger exists from worn or damaged
insulation or unsafe electrical connections. Take special note to the cables near the gun – this is
where maximum wear occurs.
Worn cables not only produce inconsistent welds, but can overheat or spark.
TRAINING
Use of this equipment must be limited to authorize personnel only. They must be adequately
trained, and have read and understood everything in this manual. The manual must be available
to operators at all times.
INSTALLATION
Select a site for the equipment which is capable of supporting the weight of the equipment,
which is clear from traffic routes where people may trip over cables, or they may be damaged
by other equipment or vehicles.
Do not hang connecting cables over sharp edges or have near heat sources.

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PRODUCT FEATURES
The 7310 incorporates the latest solid state technology into a compact and rugged, portable CD
Pin Welder. This system has the capacity to weld pins (including cupped head pins) up to 10
gauge.
FEATURES
• Intuitive Touch Screen Interface with preset values for fast, accurate and repeatable
weld settings.
• Cooling fans for increased efficiency.
• Set Point Discharge. The 7310 discharges directly to the new set point without needing
to discharge completely.
• The 7310 can be connected to either 120V or 240V input voltage.
• Low input voltage capability enables operation with long extension cords.
• Contact and Trigger indicators for fast troubleshooting of hand tool and weld cable
maintenance.
• Sheet metal is powder coated for greater durability, texture and appearance.
• The gun is ergonomically designed for better hand fit and comfort (reduces operator fa-
tigue for increased weld repeatability).
• Thermal and Voltage protection indicators to protect the unit from damage due to over-
heating or poor input voltage.
PRODUCT SPECIFICATIONS
SIZE 14.0”X10.5”X11.5”
WEIGHT Approx. 18 lbs
WELD RANGE Weld Pins—Up to 10 gauge
DUTY CYCLE 30 Pins Per Minute
POWER 85-250 VAC, .0-02.0 A, 50/ 0 Hz
CHARGE VOLTAGE 35-200 VDC
GUN CABLE LENGTH 21’
GND CABLE LENGTH 15’
OPERATIONAL AND SAFETY FEATURES
-Voltage Readout
-Safety Shutdown
-Cooling Fans
-Front Panel Attenuation
-Weld Voltage Adjustment

Model 7310 Power Pinner CD Hand Welder
PRODUCT COMPONENTS
FRONT PANEL
Weld Ground Connector
Touch Screen Interface 51414
Control Cable Connector
REAR VIEW
OFF?/ON Switch
10A Fuse
Power Cord Socket
Weld Cable Connector

Model 7310 Power Pinner CD Hand Welder
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OPEN VIEW
OFF/ON Switch
10A Fuse
Inline Filter/Power Cord Socket
Capacitors Control Board 51413
Freewheeling Diodes
SCR 51407
Clamp 51408 Fan
Discharge Resistor
51415

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SET-UP AND WELDING
Connect the Ground, Gun Control and Gun Weld Cables to the front of the Weld Unit. (See
page .)
CONNECT THE GROUND CLAMP
Attach the welding ground lead to the work piece. Select an area where the clamp will not in-
terfere with the insulation. There are several different grounding devices that could be used,
depending on the work piece surface.
For bare metal surfaces, make certain that the area is free of paint, rust, grease or any other im-
purities to ensure a good ground connection.
- ‘C’ clamp grounding device (GN P/N 40291). Turn the C clamp screw to tight the
clamp to the work piece
- Squeeze tool assembly (GN P/N 20524). With the rubber spindle (P/N 42599) assem-
bled on the tool (P/N 4028 ), close the tool. Screw the spindle down until the clamp
and spindle is in contact with both the top and bottom of the work piece. Open the
tool. Screw the spindle down an additional turn to turn and a half. Lock the spindle in
position with the locking nut.
For painted metal surfaces, a hole must be selected to attach the ground clamp.
-Squeeze tool assembly (GN P/N 20523). With the ground burr (P/N 40287) and rub-
ber spindle (P/N 40288) assembled on the tool (P/N 4028 ), close the tool with the burr
in contact with the inside diameter of the grounding hole. Screw the spindle down until
the burr and spindle is in contact with the work piece. Open the tool. Screw the spin-
dle down an additional turn to turn and a half. Lock the spindle in position with the
locking nut.
40291
20524
20523
40288
42 00 4028
42599 4028

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READY FOR WELDING
When you have completed all of the previous steps to prepare for welding, attach the ground
cable to the work area, you can now power on the welder.
VOLTAGE SELECTION
-Be sure the Weld unit in in the “VOLTAGE MODE”
-Selecting the required weld voltage is achieved by pressing the “-” or “+” on the Front
Panel Touch Screen. The voltage range is from 35VDC to 100VDC.
-The voltage is determined by the diameter of the stud and the base material. A starting
point for the voltage setting is: .080 dia nail (14 Ga)-75; .10 dia nail (12 Ga)-85; .133
dia (10 Ga)-90.
-Fine tuning the voltage to meet your requirement for the specific application is recom-
mended.
WELDING
With the Ground Clamp in place, place a Weld Pin on the Guns Weld Tip. The magnetic tip
will hold the Weld Pin to the Weld Tip. Push the Weld Pin thru the insulation so the Nail tip
comes in contact with the sheet metal. The Weld Gun is equipped with a spring feature to apply
the correct amount of force to apply the Weld Pin. Push down on the Gun, making sure the
Weld Pin is perpendicular to the sheet metal, to compress the spring approximately 75% of the
spring travel. The “CONTACT” indicator will illuminate when the nail in ready to be welded.
Squeeze the Trigger to start the weld process. The “TRIGGER” indicator will illuminate when
the Trigger is depressed.
Mode Selector Decrease Voltage Selector Increase Voltage Selector Voltage Readout
CONTACT Indicator TRIGGER Indicator
Status Indicator

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TESTING WELD SETTINGS
INSPECT THE WELD
Visually inspect the weld. A good weld will result in an all-around weld, with a small visible
amount of weld surrounding base of the weld pin. Too much splatter and the weld is too hot,
lower the voltage. No splatter and the weld is too cold, increase the voltage.
If you get weld flash to one side of the weld pin as opposed to an even amount around the base,
this is called “arc blow”, and can be solved by repositioning the ground clamp.
Proper welding can be tested by either torquing or bending the weld pin. The welded pin should
stay in place using either method. If the base material is very thin, the diameter of the weld pin
will pull from the base metal for a properly welded pin.
TESTING WELD SETTINGS
When you have performed all of the presets as discussed in the manual, it is recommended that
you perform several test welds with the same diameter weld pin and base material that you will
be using. This will verify that all of the settings are correct to the results you desire.
SCREEN STATUS INDICATORS
Status Indicator Description Solution
OVERTEMP Unit has exceeded Unit needs to cool down before more welds
temperature threshold can be made. Allow the unit to cool down
clear the OVERTEMP warning.
UNDER Insufficient input Unit has detected insufficient supply power
VOLTAGE power Connect the unit to a more stable power
supply.
DC LIMIT ON Duty cycle limiter Protects capacitor from overheating by
activated limiting the user to a maximum average
duty cycle. This protection only activates
when the set point of the welder is above
85V. elow 85V there is no limitation to
the duty cycle of the unit.
ERR: CHRG TIME Max charge time Unit has taken too long to charge and there
exceeded may be an issue with the capacitor. With
unit powered down ensure that all
connectors and connections are tight.
ERR: OUTPUT Capacitor short Capacitor is not charging properly and the
detection outputs may be shorted. Check the unit for
damage.

Model 7310 Power Pinner CD Hand Welder
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51308 Trigger Switch 42 02 Gun RH
42 03 Gun LH 31 00 Spring Back 4105 Spring 31 03 Electrode 31 02 Slide
31 01 Grommet 50033 Sleeve
GUN COMPONENTS
20519 Tip
Without
Guide
20518 Tip
With Guide
2052 Ground Cable Assembly (Less ground clamp)
20527 Gun and Cable Assembly (Less tip)

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SERVICE POLICY
Proper operation of your machine is a top priority with the Gripnail Corporation. We will as-
sist you to the best of our abilities to see it is kept in peak operating condition.
In many cases, service needs can be made simply by calling Gripnail Customer Service De-
partment. If it becomes necessary for a service technician to visit your plant, we can make the
arrangements.
All Gripnail machines are covered under a one year New Machine Warranty (see Warranty
next page). Replacement parts covered by the warranty are supplied free of charge, provided
the original parts are returned to Gripnail and do not shown signs of abuse.
All warranties on Gripnail machines are good only if Gripnail fasteners are used. If it is de-
termined that fasteners other than those manufactured by Gripnail have been used, the war-
ranty is voided. At Gripnail, we believe in servicing what we sell for the lifetime of the
equipment. If you are having difficulty with your machine or if you have any questions re-
garding service and warranty policy, please call, fax, or write:
Gripnail Customer Service Department
Gripnail Corporation
97 Dexter Road
East Providence, Rhode Island 02914
Phone: [phone]
Fax [phone]
Email: [email protected]
Website: www.gripnail.com

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WARRANTY
All Gripnail Fastening Equipment is thoroughly inspected and tested before leaving the factory.
Gripnail Corporation warranties its equipment to be free from defects in workmanship and mate-
rials under normal and proper use for a period of one (1) years from date of sale to original end
purchaser.
The warranty does not apply when repairs or attempted repairs have been made by persons other
than Gripnail Corporation’s authorized service personnel, or where it is determined by our ser-
vice personnel that the equipment has been subjected to misuse, negligence or accident. If it is
determined that any fasteners other than those manufactured by Gripnail have been used in this
machine or tool, the warranty is terminated.
This warranty is not effective unless equipment is properly registered with the factory through
the use of warranty information card prior to use. Gripnail Corporation shall not be liable for
contingent damages or delays caused by defective materials or any other means beyond our con-
trol.
Gripnail Customer Service Department
Gripnail Corporation
97 Dexter Road
East Providence, Rhode Island 02914
Phone: [phone]
Fax: [phone]
Email: [email protected]
Website: www.gripnail.com