Hobart Welding Products HP-70 manual

AirForce 700i A n d H P - 7 0 T o r c h Processes Description Air Pla sma Cut tin g Air Pla sma Cutt er OM-244 013C 2010-04  File: Plasma Cutters[...]

Miller Electric manufactures a full line of welders and welding related equipment. For information on other quality Miller products, contact your local Miller distributor to receive the latest full line catalog or individual specification sheets. T o locate your nearest distributor or service agency call 1-800-4-A-Miller , or visit us at www .Mille[...]

T ABLE OF CONTENTS SECTION 1 SAFE TY PR ECAUT IONS - REA D BEF ORE U SING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symb ol Usag e 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2. Plas ma Ar c Cu ttin g Ha zards 1 .[...]

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OM- 244 0 13 Pa ge 1 SECTION 1 SAFETY PRECAUTIONS - READ BEFORE USING pom_2010 03 Protect yourse lf a nd oth ers fro m i njur y — rea d a nd foll ow the se p rec aut ions . 1-1. Symbol Usage DANGER! Indicates a hazardous situation which, if not avoided, w ill result in death o r serious injury . The possibl e haza rds ar e shown in th e adjo inin[...]

OM- 244 0 13 Pa ge 2 SIGNIFICANT DC VOL T AGE exists in inverter po we r s ou rc es AF TE R t he re - moval of input power . D T urn O f f un i t, di s co n ne c t i np u t p ow e r , c he c k v ol t ag e o n i n pu t c a - pa c it o rs , an d b e s u re i t i s n ea r ze r o ( 0) v ol t s b ef o r e t ou c hi n g a n y parts. Check capacitors acco[...]

OM- 244 0 13 Pa ge 3 1-3. Additional Symbols For Installation, Operation, And Maintenance HOT P ARTS can burn. D Do n ot tou ch ho t p art s b are ha nde d. D All ow coo lin g p eri od bef ore wo rki ng on equipment. D T o handle hot parts, use proper tools and/or wear heavy , insulated welding gloves and clothing to prev ent bur ns. MOVING P ARTS [...]

OM- 244 0 13 Pa ge 4 1-4. California Proposition 65 W arnings W elding or cutting equipment produces fumes or gases which contain chemi cals known to the Stat e of C alifor nia to cause birth defects and, in some cases, cancer . (California Health & S afe ty Code Se cti on 252 49. 5 e t s eq. ) Battery p os ts , t e rm i na l s a nd re l at ed [...]

OM- 244 0 13 Pa ge 5 SECTION 2 CO NSIGNES DE SÉ CURITÉ LIR E A V ANT UTILISA TION pom_2010 03fre Se prot ége r e t p rot éger le s a utr es cont re le ris que de ble ssu re — li re et res pec ter ces co nsi gne s. 2-1. Signification des symboles DANGER! I nd iq u e u ne s i tu a ti on da ng e re u se q u i s i o n l’évite p a s p e u t d o[...]

OM- 244 0 13 Pa ge 6 D Assurez vous que le f il de t er re du c ord on d’ al im ent at io n e st c or- rectement re l i é à l a b or n e d e t e r r e d a n s l a b o ît e d e c oup u r e o u q u e la fi c h e d u c o rd o n e s t b r an c h ée à u n e p r is e c o r re c t em e nt m is e à l a terre vou s d evez to ujou rs v éri fier la m[...]

OM- 244 0 13 Pa ge 7 D Ne c ou p e z p a s d a ns u n e n dr o i t p r ès d ’o p é ra t i on s de d éc a p ag e , d e nettoyage ou de va por isa tio n. La ch ale ur et les ra yo ns d’a rc peu - vent r é a gi r av e c l e s va p e ur s et f o rm e r d e s g a z ha u t em e n t t o x iq u e s et irrit ants . D Ne cou pe z p as d es m ét au x[...]

OM- 244 0 13 Pa ge 8 L e s C HA MP S É L EC T R O M A G N ÉT I Q U E S ( CE M ) p e u v e n t a f f e c te r l e s i m p la n t s m é d i c au x . D Les porteurs de stimulateurs cardiaques et autres implants médicaux doivent rester à d ista nce. D Les porteurs d’implants médicaux doivent consulter leur méde cin et le fabric ant du disposit[...]

OM- 244 0 13 Pa ge 9 2-4. P r o po s it i on c al i fo r n i en n e 65 A ver tis se m e n ts Les éq uip emen ts de s ouda ge et d e c oupa ge prod uise nt des fumées et des gaz qui contiennent des produits chimique s dont l ’É ta t d e Ca li f or ni e r ec on na ît qu ’i ls p r ov oq ue nt de s ma l- formations congénitale s et, dans c ert[...]

. A co mple te P arts Li st i s av aila ble at w ww .MillerW elds.com OM- 24 4 0 13 Pa ge 10 SECTION 3 DEFIN ITIONS 3-1. Symbols And Definitions For Nameplate And Serial Number/Rating Label A Amperes Plasma Arc Cut ting (P AC) Adjus t Air /Gas Pressure Low A ir P ressu re Light V V olts Increase No Do No t D o This T emperature Prote ctiv e Ea rth [...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 244 0 13 Pa ge 1 1 SECTION 4 INST ALLA TION 4-1. Specifications Power Supply Input Rated AC phase (PH ) a nd l ine freq uenc y (H z) 1 PH 60 Hz — — Rate d In put V oltag e (U 1 ) a nd r ated In put Curren t (I 1 ) an d I 1 eff at rate d ou tput . I 1 eff us ed to d eter mi[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 12 4-2. Duty Cycle And Overheating Duty C yc l e is p e rc e n t ag e o f 1 0 m in - utes that unit can c ut at rated load without ove rhe ati ng. If unit overheats, thermostat(s) opens, output stops, T emperature trouble light goes On, and cooling fan runs. Wa[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 13 4-5. Selecting A Location loc_2 3/96 - Ref. 244 405-A ! Do not move or o perate unit wher e it cou ld t ip. 18 in. (46 0 mm) 18 in. (46 0 mm) ! Special installation may be required where gasoline or volatile liquids are present see NEC Article 51 1 or CEC Se[...]

. A co mple te P arts Li st i s av aila ble at w ww .MillerW elds.com OM- 24 4 0 13 Pa ge 14 4-8. Electrical Service Guide Failure to f oll ow the se el ect ric al ser vic e g ui de rec omm end ati ons c oul d c rea te an ele ctr ic sh ock or fi re haz ar d. The se rec omm end a- tion s a re f or a de dic ate d br anc h ci rcu it s ize d fo r t he [...]

. A co mple te P arts Li st i s av aila ble at w ww .MillerW elds.com OM- 24 4 0 13 Pa ge 15 4-10. Serial Number And Rating Label Location The s er ia l nu mb er an d ra ti ng i nf or mat io n fo r th is p rod uc t is l oc at ed on t h e ba ck . Us e ra ti ng l ab el t o de te r mi ne i np ut p ow er r eq ui r em en ts a n d/ or r a te d output. Fo[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 16 4-12. Wiring Optional 240 V olt Plug (1 19 172) For Connection T o Bobcat, T railblazer Or Champion 10,000 Ref. 120 813-D / Ref. 244 405-A 1 Input A nd Gr oun din g Conductors 2 Plug Wir ed fo r 2 40 V , 2-Wi re Load 3 Neutral (Bra ss) T ermi nal A nd Prong [...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 17 4-13. Installing Alternative Plug 1 Supplied 230 V AC Plug Cut cord clo se to p lug. 2 Alter nat ive Pl ug ( 230 V AC Plu g S how n) 3 Input (Bl ack Lea d) (Brass) T erminal 4 Inpu t ( Whi te Le ad) (Brass) T erminal 5 Groun d (G ree n) T erminal 6 Outer Sh [...]

. A co mple te P arts Li st i s av aila ble at w ww .MillerW elds.com OM- 24 4 0 13 Pa ge 18 4-15. Electrode Wrench 244 412-A / Ref. 804 885-A 1 Cable M an ag eme nt S tra p 2 Elect rode W rench The el e c t ro d e wr e n c h i s fa s t e ne d t o the ca bl e m ana gem en t s tra p. 2 1[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 19 SECTION 5 OPERA TION 5-1. Controls 1 Output C ont rol Use cont rol to set cut ting ou tput . If 22-27 amperes of cutting output is used with 1 2 0 V AC i np ut po we r , a nd t he ov er lo ad protection on the input power circuit fre- quently op en s , ei th[...]

. A co mple te P arts Li st i s av aila ble at w ww .MillerW elds.com OM- 24 4 0 13 Pa ge 20 5-2. Mild Steel Recommended Cut Speed . Aluminum and stai nles s st eel cut spee ds a t th ese thic knes ses may be r educ ed a s mu ch a s 30 %. Thickness Approximat e T ravel Speed* Inches Millimeters IPM mm/min 1/8 3.2 130 3292 1/4 6.4 52 1321 3/8 9.5 28[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 21 Ref 803 915-A / Ref. 804 848-A 5-4. Plasma Cutting System Practices Pulling ra the r t han pu shin g t he tor ch make s c utt ing eas ier . Us e a pr oper gu ide or t emp lat e f or a ccu rat e c utti ng ope rat ion s. Mai nta in ap pro xi mat ely a 90 ° an[...]

. A co mple te P arts Li st i s av aila ble at w ww .MillerW elds.com OM- 24 4 0 13 Pa ge 22 804 848-A 5-5. Sequence Of Cutting Operation EXAMPLE Of Cutt ing O perat ion Plac e ti p ne ar work . . Keep tip 1/16 in. from work for max cutting speed and tip life. Slid e tri gger loc k ba ck. Press trig ger . Pilot arc start s. After cutt ing arc start[...]

. A co mple te P arts Li st i s av aila ble at w ww .MillerW elds.com OM- 24 4 0 13 Pa ge 23 Ref. 804 848-A 5-6. Sequence Of Cutting Using Stand-off Guide EXAMPLE Of Cutt ing Usin g Sta nd-o ff G uide Plac e s tan d-of f guid e o n w ork . St and -of f gui de pro vid es 1/ 16 in. (1 .6 mm ) g ap betw een ti p a nd wor kpi ece. Slid e tri gger loc k[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 24 Ref. 803 640-A / 801 400-B 5-7. Sequence Of Piercing Operation Connect work cla mp t o a cle an, pa int- fre e loca tion on work pie ce, as c lose to cut ting area as pos sibl e. Hold to rch at an angle to the wor kpi ece. Sl ide tri gge r lock b ack. P ress[...]

. A co mple te P arts Li st i s av aila ble at w ww .MillerW elds.com OM- 24 4 0 13 Pa ge 25 SECTION 6 MA INTENANCE & TROUBLES HOOTING 6-1. Routine Maintenance ! Disconnect power befo re mai nta ini ng. . Mai nt ain m or e o ft en duri ng seve re c ond itio ns. n = Check Z = C han ge ~ = Cl ean l = Re pla ce * T o be don e b y Fa ctor y A utho [...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 26 6-2. Checking Or Replacing Filter Element ! T urn power Off, and disconnect in p ut p o we r pl u g from receptacle. Check to see t hat a ll dia gno sti c LED ’ s have stopped flashing before removing wrapper from un it. T urn power Off, and disconnect inp[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 27 6-3. Status/T rouble Lights . Difficulty estab lish ing a pil ot arc ma y in dic ate co nsu mab les nee d t o b e c lea ned or rep lac ed. V R E W O P E R U S S E R P P U C P M E T Light Condition Status/Possible Ca use Power On Inpu t po wer is o kay . Pres[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 28 6-5. Checking/Replacing Retaining Cup, Tip, And Electrode . A g ood pra cti ce is to rep lac e b oth th e t ip a nd ele ctr ode at th e s ame ti me. Ref. 804 851-A T urn Of f power s ourc e. 1 Shie ld Cup Remove shield cup. Check cup for cracks, and re place[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 29 6-6. T orch And Work Cable Connections ! T urn power Off, and disconnect in p ut p o we r pl u g from receptacle. Check to see t hat a ll dia gno sti c LED ’ s have stopped flashing before removing wrapper from un it. If torch or work cable needs to be rem[...]

. A co mple te P arts Li st i s av aila ble at w ww .MillerW elds.com OM- 24 4 0 13 Pa ge 30 6-7. T roubleshooting Power Source T rouble Remedy No pil ot arc; di f ficulty in establish ing an arc. Clean or repl ace w orn cons umabl es a s ne cessa ry ( see t orch Own er’s Ma nua l). Chec k fo r da mag ed t orch or tor ch c able (s ee t orch Own e[...]

. A co mple te P arts Li st i s av aila ble at www .MillerW elds.com OM- 24 4 0 13 Pa ge 31 6-8. T roubleshooting T orch T rouble Remedy Arc go es on and of f whil e c utt ing . T orch t ra v e l s pe e d t o o s l o w ; i n c r e as e t r a v e l spe e d ( s e e S e ct i o n 5-2 ). C l ea n o r r e pl a c e t o r ch c on s u m ab l e s as nec essa[...]

OM- 24 4 0 13 Pa ge 32 SECTION 7 ELE CTRICAL DIAG RAM Figure 7-1. Circuit Diagram[...]

OM- 24 4 0 13 Pa ge 33 244 01 1-B[...]

OM- 24 4 0 13 Pa ge 34 SECTION 8 P ARTS LIST 8-1. Recommended Spare Parts 243 016-A CAUTION • • • Turnoffpowerbeforecheckingtorchparts. Checkbeforeeachuseandhourlyduringoperation. Torqueelectrodelightlyw/smallwrench(15–20in.lbs.) FAILURETOREPLACEWORNTI[...]

Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. miller_warr 2010 01 Y our dis trib utor als o gi ves you . .. Service Y ou alway s g et t he f ast, reli abl e r espo nse yo u nee d. Mos t rep lac eme nt part s ca n be in you r hand s i n 2 4 h our s. Support Need fas t an swer s to the tou gh wel din g que sti ons ? Con[...]

ORIGINAL INSTRUCTIONS PRINTED IN USA  2010 Miller Electric Mfg. Co. 2010 01 M i ll e r E le c tr ic M fg . C o. An Il l i n o is T oo l W o r k s Co mp a ny 1 6 3 5 W e st Sp en ce r S tr ee t Ap pl e to n , W I 54 91 4 US A In t er n a ti o n a l H ea d qu a r t e rs U S A U S A Ph on e : 92 0 - 73 5 -4 50 5 A u to - A tt e n de d U S A & C[...]