English dropdown-ico

Hobart 750 manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Hobart 750, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Hobart 750 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Hobart 750. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Hobart 750 should contain:
- informations concerning technical data of Hobart 750
- name of the manufacturer and a year of construction of the Hobart 750 item
- rules of operation, control and maintenance of the Hobart 750 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Hobart 750 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Hobart 750, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Hobart service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Hobart 750.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Hobart 750 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    AirForce 750 Processes Description Air Plasma Cutting and Gouging Air Plasma Cutter OM-279 180 060P August 2001[...]

  • Page 2

    Hobart W elders manufactures a full line of welders and welding related equipment. For information on other quality Hobart products, contact your local Hobart distributor to receive the latest full line catalog or individual catalog sheets. T o locate your nearest distributor or service agency call 1-877-Hobart1. Thank you and congratulations on ch[...]

  • Page 3

    T ABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2. Plasma Arc Cutting Hazards 1 . . . . . . . . . . . . . . . . . . . . [...]

  • Page 4

    [...]

  • Page 5

    OM-279 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING pom _nd_9/98 1-1. Symbol Usage Means W arning! W atch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Y Marks a special safety message. . Means “Note”; not safety related. This group of symbols means W arning! W atch [...]

  • Page 6

    OM-279 Page 2 D On inverter power sources, failed parts can ex- plode or cause other parts to explode when power is applied. Always wear a face shield and long sleeves when servicing inverters. EXPLODING P ARTS can injure. Sparks and hot metal blow out from the cutting arc. Chipping and grinding cause flying metal. FL YING SP ARKS can cause injury [...]

  • Page 7

    OM-279 Page 3 1-3. Additional Symbols For Installation, Operation, And Maintenance HOT P ARTS can cause severe burns. D Do not touch hot parts bare handed. D Allow cooling period before working on torch. MOVING P ARTS can cause injury . D Keep away from moving parts such as fans. D Keep all doors, panels, covers, and guards closed and securely in p[...]

  • Page 8

    OM-279 Page 4 1-4. Principal Safety Standards Safety in Welding and Cutting , ANSI Standard Z49.1, from American W elding Society , 550 N.W . LeJeune Rd, Miami FL 33126 Safety and Health Standards , OSHA 29 CFR 1910, from Superinten- dent o f Documents, U.S. Government Printing Of fice, Washington, D.C. 20402. Recommended Practices for Plasma Arc C[...]

  • Page 9

    OM-279 Page 5 SECTION 1 – CONSIGNES DE S É CURIT É – LIRE A V ANT UTILISA TION pom_nd_fre_9/98 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette proc é dure pr é sente des risques de danger ! Ceux-ci sont identifi é s par des symboles adjacents aux directives. Y Identifie un message de s é curit é particulie[...]

  • Page 10

    OM-279 Page 6 D Isoler la pince de masse quand pas mis à la pi è ce pour é viter le contact avec tout objet m é tallique. Il y a DU COURANT CONTINU IMPORT ANT dans les convertisseurs apr è s la suppression de l ’ ali- mentation é lectrique. D Arr ê ter les convertisseurs, d é brancher le courant é lectrique, et d é - charger les condens[...]

  • Page 11

    OM-279 Page 7 Les bouteilles de gaz contiennent du gaz sous haute pression. Si une bouteille est endommag é e, elle peut exploser . Puisque les bouteilles de gaz font habituellement partie d ’ un processus de travail des m é taux, assurez – vous de les manipuler correctement. LES BOUTEILLES peuvent exploser si elles sont endommag é es. D Pro[...]

  • Page 12

    OM-279 Page 8 1-4. Principales normes de s é curit é Safety in W elding and Cutting, norme ANSI Z49.1, de l ’ American W el - ding Society , 550 N.W . Lejeune Rd, Miami FL 33126 Safety and Health Sandards, OSHA 29 CFR 1910, du Superintendent of Documents, U.S. Government Printing Of fice, Washington, D.C. 20402. Recommended Safe Practice for th[...]

  • Page 13

    OM-279 Page 9 SECTION 2 – INST ALLA TION 2-1. Specifications Model Amperes Input at Rated Load Output 60 Hz T ype of Plasma Rated Rated Cutting Maximum Open- Circuit Model 200 V 230 V 460 V 575 V KV A KW Output Gas Output Cutting Capacity Circuit V oltage DC Single- Phase 42.30 (3.40*) 36.80 (2.95*) 18.40 (1.50*) –– 8.49 (0.68*) 6.55 (0.20*) [...]

  • Page 14

    OM-279 Page 10 2-4. Cutting Speed The cutting speed curve shows the recommended maximum cutting speed capabilities of the power source and torch for mild steel of various thickness. Y Exceeding recommended cutting speeds will cause rapid erosion of the tip and electrode. 180 909 Cutting speed is approximately 10 inches per minute at 0.7 in mild ste[...]

  • Page 15

    OM-279 Page 1 1 2-6. Connecting Gas/Air Supply 1 Unit Gas Fitting (Female 1/4 NPT) 2 Quick Connect Gas Fitting 3 Standard Gas Fitting Obtain and install desired fitting. 4 Hose Obtain suitable hose according to installed fitting, and connect to fit- ting. Route hose to gas/air supply . Adjust gas/air pressure according to Section 3-2. Y Incorrect p[...]

  • Page 16

    OM-279 Page 12 2-8. Placing Jumper Links Check input voltage available at site. 1 Jumper Link Label Move jumper links to match input voltage and label on unit. Ref. 801 455 S-094 120-B 230 V olts 460 V olts 575 V olts L1 L2 L3 L1 L2 L3 L1 L2 L3 3/8 in T ools Nee d e d : 230 VOL TS 460 VOL TS 200 VOL TS S-083 566-C LL LL LL 1 Do not overtighten. Sin[...]

  • Page 17

    OM-279 Page 13 L1 (U) 2-9. Connecting Input Power 1 Strain Relief Clamp Route input and grounding conduc- tors through clamp to terminal board. 2 Input And Grounding Conductors 3 Line Disconnect Device Select type and size of overcurrent protection using Section 2-7. 7/16 in 1/2 in T ools Needed: 3 OR 2 2 L2 (V) L3 (W) L1 (U) L2 (V) Ref. 801 455 / [...]

  • Page 18

    OM-279 Page 14 SECTION 3 – OPERA TION 3-1. Front Panel Controls 1 Pilot Arc Switch Use switch to control pilot arc. Place switch in Expanded Metal position for continuous pilot arc. Use while cutting ex- panded metals only . . The Expanded Metal position keeps the pilot arc in the circuit at all times. Life of consumables will be significantly re[...]

  • Page 19

    OM-279 Page 15 3-2. Setting Gas/Air Pressure Place controls in positions shown to adjust air pressure. Only gas/air cir- cuit is activated when the Power switch is turned On with Output Control in Gas/Air Set position. 1 Pressure Gauge 2 Pressure Adjustment Knob Lift knob and turn to adjust pres- sure. Push knob down to lock in set- ting. Place out[...]

  • Page 20

    OM-279 Page 16 3-3. Sequence Of Operation Put On Personal Safety Equipment After cutting arc starts, slowly start moving torch across metal. Adjust torch speed so sparks go thru metal and out bottom of cut. Pause briefly at end of cut before releasing trigger . Install & Connect Equipment EXAMPLE Of Cutting Operation 801 400-A Press trigger . P[...]

  • Page 21

    OM-279 Page 17 SECTION 4 – MAINTENANCE & TROUBLESHOOTING 4-1. Routine Maintenance Y Disconnect power before maintaining. . Maintain more often during severe conditions. Each Use Check T orch T ip, Electrode, And Shield Cup Check Gas/Air Pressure Every Week Check Shield Cup Shutdown System 3 Months Service A i r Filter/Regulator Assembly Filte[...]

  • Page 22

    OM-279 Page 18 4-2. T rouble Lights 1 Pressure Light Lights if gas/air pressure is below 40 PSI (276 kPa). Tur n power Of f, and check for prop- er gas/air pressure (see Section 3-2). 2 Cup Light Lights if shield cup is loose. T urn power Of f, and check shield cup connection (see torch Owner ’ s Manual). Power must be reset whenever the cup shut[...]

  • Page 23

    OM-279 Page 19 4-4. T roubleshooting T rouble Remedy No pilot arc; dif ficulty in establishing an arc. Clean or replace worn consumables as necessary (see torch Owner ’ s Manual). Check for damaged torch or torch cable (see torch Owner ’ s Manual). Have Factory Authorized Service Agent check power switch S1, control relay CR1, CR5 and CR6, rect[...]

  • Page 24

    OM-279 Page 20 T rouble Remedy Fan motor FM does not run; Power light and Ready light both On. Have Factory Authorized Service Agent check fan motor connections. Check input power , and check for proper input connections (see Sections 2-7 and 2-9). Trouble lights not working. Have Factory Authorized Service Agent check safety control board PC1.[...]

  • Page 25

    OM-279 Page 21 SECTION 5 – ELECTRICAL DIAGRAMS 193 215 Figure 5-1. Circuit Diagram For 200/230/460 V olt Models[...]

  • Page 26

    OM-279 Page 22 194 148 Figure 5-2. Circuit Diagram For 230/460/575 V olt Models[...]

  • Page 27

    OM-279 Page 23 Notes[...]

  • Page 28

    OM-279 Page 24 SECTION 6 – P ARTS LIST 801 499-J . Hardware is common and not available unless listed. 1 2 3 4 5 6 7 8 9 10 15 11 12 16 8 18 19 20 21 22 23 24 25 26 27 28 29 30 25 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 17 11 12 13 14 50 51 52 Figure 6-1. Main Assembly[...]

  • Page 29

    OM-279 Page 25 Description Part No. Dia. Mkgs. Item No. Figure 6-1. Main Assembly Quantity 1 178 158 P ANEL, side LH 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 026 947 ST AND-OFF , insul 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 30

    OM-279 Page 26 Description Part No. Dia. Mkgs. Item No. Figure 6-1. Main Assembly (Continued) Quantity 45 P ANEL, front (consisting of) 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +206 446 P ANEL, front 1 . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 31

    Warranty Questions? Call 1-877-HOBART1 for your local Hobart distributor. hobart retail 4/00 Service Y o u always get the fast, reliable response you need. Most replacement parts can be in your hands in 24 hours. Support Need fast answers to the tough welding questions? Contact your distributor or call 1-800-332-3281. The expertise of the distribut[...]

  • Page 32

    PRINTED IN USA  2000 Hobart Welding Products. 1/00 Hoba rt We lding Pr oducts An I l li noi s T ool W orks Company 600 West M ain Street Troy , OH 45373 US A For Technical Assi stance: Call1-800-332-3281 For Lit erat ure Or Neares t Deal er: Call 1-877-Hobart 1 Model Name Serial/Style Number Purchase Date (Date which equipment was delivered to o[...]