DGP Piranha III Manuale utente

2651 Lavery Court • Newbury Park, CA 91320

Tel: 805.498.3837 • Fax: 805.498.9347

[email protected]

www.diamondground.com

since 1992

DGP-PG3-A

USER MANUAL

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 III PARTS LIST 10

10. TUNGSTEN ELECTRODE OPTIONS 11

11. OPTIONAL COLLET KIT W/PART LIST 12

Page 2

PIRANHA III

TUNGSTEN GRINDER

USER MANUAL

Page 3

1. INTRODUCTION

Thank you and congratulations on your purchase of the Piranha III™ 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 6 electrode sizes - .040” (1.0mm), 1/16” (1.6mm), 3/32” (2.4mm),1/8” (3.2mm),

5/32” (4.0mm) & 3/16” (4.8mm) - with no equipment changes.

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

• Precision body stop gauge & depth adjustment stop ensures exact tungsten points every time - enabling

consistent, repeatable arc performance and welding output.

• Electrode notching station for simple cut-off.

• Single-sided diamond grinding wheel for maximum wheel life and value.

• Port Ready for Vacuum Upgrade.

• Sliding dust shield for 100% dust containment.

• Integrated receptacle area for ease of handling electrodes.

• Recessed handle for better form & function.

• On/off switch with LED light for improved display of unit operation.

• Lightened chassis for reduced weight.

• Signature blue powdercoat

• Detailed manual for valuable engineering data and welding recommendations.

BENEFITS:

• SAFETY

• WELD QUALITY

• PRODUCTIVITY

• VALUE

Page 4

2. SPECIFICATIONS

Range of Included Angle: 10° - 60°

Electrode Diameters: .

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

1/8” (3.2mm), 5/32” (4.0mm) & 3/16” (4.8mm)

Minimum Electrode Length: 1.75” (44.5mm)

Voltage: 110/230 VAC, 50/60 Hz

Power Consumption: 500 Watts

Motor: 1/3 hp, 1,700 rpm, 6.0 amps

Length: 12” (304.8mm)

Width: 7.5” (190.5mm)

Height: 7.5” (190.5mm)

Weight: 32 lbs (14.5 kg) - Package weight: 38 lbs (17.2 kg)

3. WARRANTY

The Piranha III 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, including 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.

•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.

• 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.

• Keep hands away from moving parts.

Page 5

5. UNPACKING & MOUNTING

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 III Tungsten Grinder.

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

• PIII Manual

• Pin Vise

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.

The Body Stop 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

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.

Page 6

Body Stop Gauge setup:

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

Body Stop Gauge as follows:

Initial Gauge setup:

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

lock collar.

2) Loosen Nut D on the Body Stop Gauge.

3) Insert electrode into Body Stop Gauge.

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 Body Stop Gauge depth set per above):

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

3) Insert electrode into Body Stop Gauge. Slide until nose of the Pin Vise contacts the Gauge face.

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

wheel life for grinding tungsten electrodes.

GRINDING TECHNIQUES

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: 3/16”/4.8mm, 5/32”/4.0mm, 1/8”/3.2mm,

3/32”/2.4mm, 1/16”/1.6mm, .040”/1.0mm. Lightly touch the wheel

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:

3/16” / 4.8mm 55 to 65 seconds

5/32” / 4.0mm 30 to 40 seconds

1/8” / 3.2mm 25 to 35 seconds

3/32” / 2.4mm 15 to 20 seconds

1/16” / 1.6mm 11 to 15 seconds

.040” / 1.0mm 5 to 8 seconds

REMOVING A TIP FROM AN ELECTRODE

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.

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

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.

electrode on one side, rotate the electrode to notch the

remaining side.

electrode and proceed to grind as normal.

ADJUSTING THE SLIDING DUST SHIELD

Turn the dust shield knob counter-clockwise to unlock.

Depending on the angle desired, slide the shield forward or

backward and align the edge of the shield to the inner face of the

electrode arm. Dust escapes not from the holes, but the space

between the wheel and the electrode arm. Turn the dust shield

knob clockwise to lock the shield in place. Remember to adjust

the shield if adjusting the angle.

Dust Shield

Inner face of

electrode arm

Dust Shield Knob

Page 8

7. WHEEL REPLACEMENT

HOW TO ORDER REPLACEMENT WHEELS

The Piranha III 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 six 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

Wheel (DGP-PG1426)

• For optimum wheel life on 3/32” through 3/16”, use a 300 Grit Diamond Wheel (DGP-PG1425)

PART NO. PIRANHA GRINDER ACCESSORIES

DGP-PG1425 Piranha III Grinding Wheel – 300 Grit Single Sided (6” diameter)

DGP-PG1423 Piranha III Grinding Wheel – 150 Grit Single Sided (6” diameter)

DGP-PG1426 Piranha III Grinding Wheel – 600 Grit Single Sided (6” diameter)

All prices are FOB Factory.

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.

Page 9

PIRANHA III

TUNGSTEN GRINDER

Exploded Assembly

Page 10

REF.BOM FOR PIRANHA III-A TOP ASSEMBLY PN: DGP-PG3-A REV. A 2015

Parts List

ITEM NO. PART NUMBER DESCRIPTION QTY.

1 DGP-PG1430 BHSCS #4-40 x 3/16” 2

2 DGP-PG1427-A SWITCH-ROCKER A/C W/COVER 1

3 DGP-PG1362 SHCS BLK #10-32 x 1-1/2 FT 2

4 DGP-PG1335 BHSCS SS #8-32 x 1/2 4

5 DGP-P570 SHCS BLK #8-32 x 1/2 4

6 DGP-PG1468-A SHCS BLK #8-32 x 5/8 1

7 DGP-PG1439 SHSS BLK #1/4-20 x 3/8 CUP PT 2

8 DGP-PG1444 SHCS BLK #1/4-20 x 1 3/8 4

9 DGP-PG1442 BHSCS BLK #10-32 x 1/2 6

10 DGP-PG1318 SHCS BLK #4-40 x 5/16 1

11 DGP-PG1437 NUT HEX ZINC #1/4-20 4

12 DGP-P723 WASHER FLAT SS #10 1

13 DGP-P730 WASHER FLAT SS #10 2

14 DGP-P700 WASHER 1/4 ID 1/2 OD 4

15 DGP-PG1494-A BHSCS #6-32 x 3/16 1

16 DGP-P1317 KNOB - SHEAR LOK #4 - BLACK 10

17 DGP-P355 POWER CORD WITH GROMMET 1

18 DGP-P410 HANDLE - ADJUSTABLE 1

19 DGP-P450 8-32-KNOB 1

20 DGP-P460 KNOB - SHEAR-LOK #10 - BLACK 2

21 DGP-PG1000 HANDLE - ADJUSTABLE WITH STUD 1

22 DGP-PG1026 CIRCUIT BREAKER 1

23 DGP-PG1027 STRAIN RELIEF 1

24 DGP-PG1310-A HANDLE, FOLDING 1

25 DGP-PG1365 KNOB - KNURLED - #10-32 2

26 DGP-PG1406 ARBOR DISC P-III 1

27 DGP-PG1410-A COVER HOUSING REAR P-III 1

28 DGP-PG1413 FELT WASHER 1

29 DGP-PG1424-A BODY-PARTITION 1

30 DGP-PG1420-A SPACER, MOTOR MOUNT 2

31 DGP-PG1416 PIVOT - ARM P-III 1

32* (See table below) GRINDING WHEEL DISK SINGLE SIDED, 6” OD 1

33 DGP-PG1433 BUMPER - RECESSED 3/4” DIA x 9/16” 4

34* (See table below) PIRANHA III MOTOR 1

35 DGP-PG1438 PLUG - FINISHING 3/4 HOLE NYLON BLK 2

36 DGP-PG1452-A LABEL - P-III MAIN 2

37 DGP-PG1457-A DUST SHIELD 1

38 DGP-PG1471-A HOUSING - P-III 1

39 DGP-PG1473-A ARM ELECTRODE 1

40 DGP-PG1474 BLOCK - ARM PIVOT 1

41 DGP-PG1475 POINTER ANGLE 1

42 DGP-PG1476-A ANGLE PLATE - PIII 1

43 DGP-P1477 BLOCK - FLATTING 1

44 DGP-PG1478-A COVER HOUSING FRONT P-III 1

45 DGP-PG1480 STUD SS #10-32 x 2 1

46 DGP-PG1485-A DUST SHIELD EXTENSION 1

47 DGP-PG1486 BODY - STOP GAUGE 1

48 DGP-PG1489 PLUG -1 NPT 1

49 DGP-PG1318 SHCS BLK #4-40 x 5/16 10

50 DGP-PG1615-A RETENTION SPRING 1

51 DGP-P61479-A 4-40 x 1/4” FLAT HEAD SCREWS 4

ITEM NO. PART NUMBER DESCRIPTION

DGP-PG1425 GRINDING WHEEL DISK SINGLE SIDED, 6” OD – 300 GRIT (STANDARD)

32 DGP-PG1423 GRINDING WHEEL DISK SINGLE SIDED, 6” OD – 150 GRIT

DGP-PG1426 GRINDING WHEEL DISK SINGLE SIDED, 6” OD – 600 GRIT

DGP-PG1436 PIRANHA III MOTOR – 110 VOLT / 60 HERTZ

34 DGP-PG1650 PIRANHA III MOTOR – 110 VOLT / 50 HERTZ

DGP-PG1466 PIRANHA III MOTOR – 220 VOLT / 60 HERTZ

DGP-PG1600 PIRANHA III MOTOR – 230 VOLT / 50 HERTZ

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