Diamond Group The piranha II Manual de usuario

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

USER MANUAL

2651 Lavery Court • Newbury Park, CA 91320

Tel: 805.498.3837 • Fax: 805.498.9347

[email protected]

www.diamondground.com

since 1992

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

TABLE OF CONTENTS

1. INTRODUCTION 3

2. SPECIFICATIONS 4

3. WARRANTY 4

4. SAFETY 4

5. UNPACKING AND MOUNTING 5

6. PREPARING ELECTRODES 5

7. WHEEL REPLACEMENT 8

8. EXPLODED ASSEMBLY DRAWING 9

9. PIRANHA II PARTS LIST 10

10. TUNGSTEN OPTIONS AND ALTERNATIVES 11

11. OPTIONAL COLLET KIT W/PART LIST 12

Page 2

PIRANHA II

TUNGSTEN GRINDER

USER MANUAL

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

Page 3

1. INTRODUCTION

Thank you and congratulations on your purchase of the Piranha II™ Tungsten Grinder, manufactured by

Diamond Ground Products in Newbury Park, CA, U.S.A. We appreciate your choice of this quality product and

expect that it will provide you with many years of reliable service. It is built to last and comes with a one-year

warranty against manufacturing defects.

FEATURES:

• Easy set-up, optimal consistency and near-perfect repeatability.

• Compact, durable and solid design.

• Longitudinal 20 RA grinding for maximum arc starting, arc stability, electrode life & weld penetration.

• Universal collet arm for 3 electrode sizes - .040” (1.0mm), 1/16” (1.6mm), 3/32” (2.4mm) -

with no equipment changes.

• Angle scale included for angles from 10° - 60°

• Precision tip at gauge & depth adjustment stop ensures exact tungsten points every time - enabling

consistent, repeatable arc performance and welding output.

• Containment bafe to keep dust inside the grinder housing, for safety and easy disposal.

• Tip at block for square end grinding and removing bad tips.

• Electrode notching station for simple cut-off.

• Double-sided grinding wheel for maximum wheel life and value.

• Detailed manual for valuable engineering data and welding recommendations.

BENEFITS:

• SAFETY

• WELD QUALITY

• PRODUCTIVITY

• VALUE

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

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2. SPECIFICATIONS

Range of Included Angle: 10° - 60°

Electrode Diameters: .

040”(1.0mm), 1/16” (1.6mm), 3/32” (2.4mm)

Minimum Electrode Length: 1.75” ( 44.5mm)

Voltage: 110/120 VAC, 50/60Hz, 220v

Power Consumption: 70 Watts

Motor: 1/10 hp, 8,000 rpm, 1.5 amps

Length: 7.8” (199mm)

Width: 4.0” (102mm)

Height: 61” (155mm)

Weight: 14 lbs (6.35kg)

3. WARRANTY

The Piranha II Tungsten Grinder comes with a one-year warranty on parts and labor, excluding the diamond-

grinding wheel that is a consumable part that naturally wears over time. This warranty also excludes abuse to

the machine, dropping of the unit or improper handling by the operator.

4. SAFETY

Before any work is done, read the caution below carefully. Working safely prevents accidents.

• When not in use, turn the grinder off for safety purposes and to decrease wear on the machine.

• Wear proper apparel. Do not wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry, which

may get caught, in moving parts of the machine.

• Wear protective hair covering to contain long hair.

• Wear safety glasses and a facemask.

• Be alert and think clearly. Never operate power tools when tired, intoxicated, or when taking medication that

may cause drowsiness.

• Work area should have sufcient lighting.

• A proper electrical outlet should be available for the tools. A three-prong plug should be plugged directly into

a three-prong outlet. Extension cord should be the correct gauge.

• Keep visitors at a safe distance from work area.

• Always unplug grinder prior to inspection.

• Read this manual thoroughly for specic adjustments and operating procedures.

• Do not perform “make-shift” repairs. Any part that is damaged should be promptly replaced.

• Only use the grinder for its intended purpose. Do not use it for a job it was not designed for.

• Make sure that the grinder is off before plugging it in.

• Do not apply extreme force on the tungsten while grinding. This may cause your grinder to jam or cause

pre-mature grinding wheel wear.

• Never leave the grinder unattended. Turn the grinder off rst and do not leave it until it comes to a complete stop.

• Keep hands away from moving parts.

• Know your grinder; learn its operation, applications, and specic limitations.

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

Page 5

5. UNPACKING & MOUNTING

The rst thing you should do is check for shipping damage. Diamond Ground Products, Inc. takes great pride

in producing quality products. If for some reason you nd anything to be defective, please contact the Service

Department at (805) 498-3837 and we will work with you to rectify the problem to your satisfaction.

After unpacking the box you should have these items:

• The Piranha II Tungsten Grinder.

• Three Allen wrenches, sizes 3/32”, 7/64” & 1/8” for replacing wheels.

• PII Manual

• Pin Vise

Mounting of the grinder is as follows. Place the unit on a at surface allowing enough space for the operator to

work in. This also provides proper ventilation. Make sure the power switch is in the off position and plug it into

the electrical outlet. Switch the power on and the unit is ready to operate.

6. PREPARING ELECTRODES

ADJUSTING HANDLES

The set up procedure for the included angle may

require the use of both adjustment handles, which are

listed above as A and B. When handle A is loosened, it

allows you to rotate the Universal Collet Arm to choose

the included angle that you would like to grind your

tungsten. Handle B allows you to adjust the location at

which the tungsten will touch the wheel.

Tip Flat Gauge depth is set with Knob C and locked in

place with Nut D.

THE SET UP PROCEDURE

With the power turned off, select the included angle you

would like to grind by:

1) Loosening Handle A

2) Turning the Collet Arm on its axis until the Pointer is

directed at the angle on the scale you desire.

3) Re-tightening Handle A.

Next, put the tungsten at the diameter you plan to use

through the proper sized collet hole on the universal

collet and observe the height at which the tungsten will hit the wheel. For setting up your rst tungsten on a

wheel, make the height as close to the top of the wheel as possible by:

1) Loosening Handle B.

2) Slide Collet Arm up to desired position.

3) Re-tightening Handle B.

The setup in now complete. After grinding numerous tungstens, you will wear a groove on the wheel. At this

point, adjust Handle B again and move the contact point down a very small amount to a fresh spot on the wheel.

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

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Tip Flat Gage setup:

Once the desired Pin Vise electrode stick-out is determined, set the Tip

Flat Gage as follows:

Initial Gage setup:

1) With electrode extending to the desired length, tighten Pin Vise

lock collar.

2) Loosen Nut D on the Tip Flat Gage.

3) Insert electrode into Tip Flat Gage.

4) Rotate Knob C until the Stop makes contact with electrode tip.

Lock the Stop in place with Nut D.

To duplicate electrode Tip Flat diameter (with Tip Flat Gage depth set per above):

1) Insert electrode into Pin Vise. Extension should be beyond the desired nal length.

2) Adjust Pin Vise collar so there is a slight drag on the extended electrode.

3) Insert electrode into Tip Flat Gage. Slide until nose of the Pin Vise contacts the Gage face.

4) Secure electrode in position by tightening Pin Vise collar.

NOTE: Diamond Ground Products (DGP) Diamond Grinding wheels are specically designed for optimum

wheel life for grinding tungsten electrodes.

GRINDING TECHNIQUES

After the short set up procedure is nished you are ready to prepare

your electrode quickly and easily. Turn the power switch on; slide the

tungsten into the proper collet hole on the universal collet. From top

to bottom the holes are: 3/32”/2.4mm, 1/16”/1.6mm, .040”/1.0mm.

Lightly touch the wheel with the tungsten and rotate it in your ngers

in a steady manner until you have ground to a point or left the proper

sized at you desire. Be patient and do not gouge the wheel by trying

to grind the electrode too quickly. Gouging the wheel will wear a

groove much faster and cause excessive wear. The approximate

recommended grinding times for each of the diameters is:

3/32” / 2.4mm 15 seconds

1/16” / 1.6mm 8 seconds

.040” / 1.0mm 5 seconds

REMOVING A TIP FROM AN ELECTRODE

After welding, it is benecial to remove a bad tip before regrinding.

To do this, turn on the power and insert the tungsten in the proper

sized hole from the choices you see on the Tip/Flat Block. Slowly

push the tip against the wheel until the point is removed. Once again,

be patient and do not gouge the wheel. A burr can form if too much

pressure is exerted on the tungsten.

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

Page 7

NOTCHING YOUR ELECTRODE

The notching feature is located at the right hand side

of your unit. This feature is provided to notch your

electrodes to a point where they can be split in half or

to remove any existing contamination off of a spent

electrode. You should never snap your electrode in half

without notching it rst. Snapping your electrode will

cause splintering within your electrode, which will later

result in contamination in your weld.

• Insert your electrode through the slot opening and

push through so the electrode is exiting from opposite

end. Holding both ends, push the electrode towards

the corner of the rotating wheel.

• Once you have notched a sufcient amount of your

electrode on one side, rotate the electrode to notch the

remaining side.

• Once complete, use the Tip/Flat Block to atten your

electrode and proceed to grind as normal.

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

Page 8

7. WHEEL REPLACEMENT

HOW TO ORDER REPLACEMENT WHEELS

The Piranha II replacement diamond wheels are available either directly through Diamond Ground Products

or through local distributors who sell our products. The part number to use when ordering are listed below in

the “Piranha Grinder Accessories” Chart. These wheels are in stock for immediate delivery. In manufacturing

replacement wheels, a special process is used to bond the diamond to the wheel which makes these wheels last

as long as possible when used for grinding tungsten. Grinding wheels other than DGP wheels will not only offer

less longevity, but may be dangerous and may void the warranty on this equipment.

HOW TO INSTALL REPLACEMENT GRINDING WHEELS

Please use the following steps to remove and replace the Diamond Grinding wheels:

1. Turn the power off, unplug the electrical outlet, and wait until the motor has come to a complete stop.

2. Completely unscrew and remove Handle A (see picture at adjusting handles). Lift up and remove the Arm,

taking care not to lose the washer between the Arm and the Handle. Set them aside.

3. Unscrew the four thumbscrews on the wheel cover. Remove the Wheel Cover to fully expose the Wheel.

4. Using the supplied Allen Wrench, loosen the four screws on the front of the Grinding Disk.

5. Remove the old Wheel and mount the replacement wheel on the arbor.

6. Replace all of the other parts in reverse order the exact same methods you used to remove them.

** IMPORTANT ***

DO NOT REMOVE OR OVER TIGHTEN ARBOR

WHEN CHANGING WHEEL, ONLY REMOVE 4 SCREWS

• For optimum surface nish on .040 through 3/32, use a 300 Grit Diamond Wheel (699-0001) (3.15” Diameter)

PART NO. PIRANHA GRINDER ACCESSORIES

699-0004 Piranha II Grinding Wheel – 600 Grit Single Sided (3.15” diameter)

699-0003 Piranha II Grinding Wheel – 150 Grit Single Sided (3.15” diameter)

All prices are FOB Factory.

Products listed above are normally stock items- consult factory to conrm.

Net 30 terms available O.A.C for deliveries in the U.S. International orders by wire transfer.

Prices that are listed are subject to change without notice.

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

Page 9

PIRANHA II

TUNGSTEN GRINDER

Exploded Assembly

Document: DGP-MANUAL-P2 | Piranha II Product User Manual | Released: 5/13 Rev. C

Page 10

REF. BOM for Piranha II Top Assembly PN: DGP-PG3 Rev. C 2011

PIRANHA II

TUNGSTEN GRINDER

Parts List

QTY ITEM PART NUMBER NAME

- 1 DGP-PG2A ASSY - TOP - PIRANHA II

1 2 699-0001 DISK - DIAMOND WHEEL

- 3

- 4

1 5 DGP-P355 POWER CORD WITH GROMMET

1 6 DGP-P460 KNOB - SHEAR-LOCK - #10 - BLACK

3 7 DGP-PG1335 BCHS - #8-32UNC X 3/8 LG

4 8 DGP-P730 WASHER - FLAT - #10

1 9 DGP-PG1080 MOTOR - AC/DC - 8K RPM

4 10 DGP-PG1130 BUMPER - FOOT

1 11 DGP-PG1301 COVER - REAR

1 12 DGP-PG1303 CHANNEL - MOTOR MOUNT

1 13 DGP-PG1305 BLOCK - PIVOT

1 14 DGP-PG1310 HANDLE

1 15 DGP-PG1312 HOLDER - FUSE 125V / 5AMP

1 16 DGP-PG1313 FUSE 125V / 5AMP

4 17 DGP-PG1315 GROMMET

4 18 DGP-PG1316 WASHER - GROMMET

4 19 DGP-PG1317 SCREW - THUMB (#4-40 X 5/16)

1 20 DGP-PG1331 ARBOR - DISK

2 21 DGP-PG1379 SHCS - #6-32 X 1/2 LG

3 22 DGP-PG1335 BHCS - #8-32 X 3/8 LG

4 23 DGP-PG1320 SHCS - #6-32 X 3/8 LG

1 24 DGP-PG1350 ARM - ELECTRODE

1 25 DGP-PG1307 POINTER - INDEX

1 26 DGP-PG1373 COVER - FRONT - 13GA CRS

1 27 DGP-PG1353 BLOCK - TIP FLAT

4 28 DGP-PG1354 SCREW-FLAT HD SOCKET-#6-32 X1/4 LG

1 29 DGP-PG1309 COLLAR - PIVOT #10-32 UNF

1 30 DGP-PG1356 PLATE - ARM MOUNT

QTY ITEM PART NUMBER NAME

1 31 DGP-PG1357 STUD - #10-3 X 1-1/4 LG

- 32

1 33 DGP-PG1359 SHIELD

2 34 DGP-PG1445 SCREWS

2 36 DGP-PG1338 SHCS - #10-32 X 3/4 LG

1 37 DGP-PG1363 SHCS - #10-32 X 1 LG

1 38 DGP-PG1365 KNOB - KNURLED - #10-32

1 39 DGP-PG1370 HOUSING - WELDMENT

1 40 DGP-PG1384 BODY - STOP GAGE

1 41 DGP-PG1364 FELT WASHER SMALL F1

1 42 DGP-P410 HANDLE - ADJUSTABLE/CLAMPING 10-32

1 43 551-0001 SWITCH - ROCKER A/C

1 44 DGP-PG1000 HANDLE - ADJUSTABLE/CLAMPING 10-32

5 45 DGP-PG1325 NUT - HEX - #6-32

2 46 DGP-PG1324 SET SCREW - #10-32UNF X 1/4 LG

2 47 DGP-PG1322 SHCS - #10-32 X 1/4 LG

4 48 DGP-PG1318 SHCS - #4-40 X 5/16 LG

4 49 DGP-PG1331 SHCS - #6-32 X 1 LG

1 50 DGP-PG1337 SHCS - #6-32 X 1/4 LG

4 51 DGP-PG1314 SPACER - 1/4 OD X 1/2 LG X #6 THRU

4 52 DGP-PG1334 WASHER - 5/16 ID X 1 OD X .050 THK

4 53 DGP-PG1321 SHCS - #6-32 X 1-1/8 LG

12 54 DGP-PG1327 WASHER - FLAT - #6

- 55

- 56

4 57 DGP-PG1432 BUMPER-RECESSED - 1 DIA X 1 LG

4 58 DGP-PG1323 NUT - HEX- #6-32 - NYLON INSERT

- 59

- 60

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