ESAB Powercut 875 Instruction Manual
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ESAB Powercut 875 Instruction Manual

Plasma arc cutting package
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Powercut 875
Plasma Arc Cutting Package
Instruction Manual (EN)
This manual provides installation and operation instructions for the following Powercut 875 cutting packages
starting with Serial No. (PxxJ434xxx).
P/N 0558004942 - 230 V, CE 7.6m (25') Package
P/N 0558004940 - 400 V, CE 7.6m (25') Package
P/N 0558005167 - 230 V, CE 15.2m (50') Package
P/N 0558005168 - 400 V, CE 15.2m (50') Package
P/N 0558007823 - 400 V, 7.6m (25') Package
0558004972

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Summary of Contents for ESAB Powercut 875

  • Page 1 Powercut 875 Plasma Arc Cutting Package Instruction Manual (EN) This manual provides installation and operation instructions for the following Powercut 875 cutting packages starting with Serial No. (PxxJ434xxx). P/N 0558004942 - 230 V, CE 7.6m (25') Package P/N 0558004940 - 400 V, CE 7.6m (25') Package P/N 0558005167 - 230 V, CE 15.2m (50') Package...

  • Page 2: User Responsibility

    BE surE thIs INforMatIoN rEachEs thE opErator. You caN gEt Extra copIEs through Your supplIEr. cautIoN these INstructIoNs are for experienced operators. If you are not fully familiar with the principles of operation and safe practices for arc welding and cutting equipment, we urge you to read our booklet, “precautions and safe practices for arc Welding, cutting, and gouging,”...

  • Page 3: Table Of Contents

    Location ..............................75 Inspection ..............................75 Primary Electrical Input Connections ....................75 Secondary Output Connections ....................... 76 sEctIoN 4 opEratIoN ............................. 79 Operation ..............................79 Powercut 875 Controls.......................... 79 Cutting with the PT-32EH ........................80 Common Cutting Problems ........................ 83...
  • Page 4 taBlE of coNtENts...

  • Page 5: Safety

    Users of ESAB welding and plasma cutting equipment have the ultimate responsibility for ensuring that anyone who works on or near the equipment observes all the relevant safety precautions. Safety precautions must meet the requirements that apply to this type of welding or plasma cutting equipment. The following recommendations should be observed in addition to the standard regulations that apply to the workplace.
  • Page 6 sEctIoN 1 safEtY prEcautIoNs WElDINg aND plasMa cuttINg caN BE INJurIous to YoursElf aND WarNINg othErs. taKE prEcautIoNs WhEN WElDINg or cuttINg. asK for Your EMploYEr’s safEtY practIcEs WhIch shoulD BE BasED oN MaNufacturErs’ haZarD Data. ElEctrIc shocK - Can kill. - Install and earth (ground) the welding or plasma cutting unit in accordance with applicable standards.

  • Page 7: Description

    ElEctrIc shocK haZarD. to 31.8mm (1-1/4") thick. Refer to the following paragraphs for descrip- tions of the Powercut 875 packages available as well as performance specifications. scopE The purpose of this manual is to provide the operator with all the in- formation required to install and operate the Powercut 875 plasma arc cutting package.

  • Page 8: Specifications

    2 DEscrIptIoN 2.4 spEcIfIcatIoNs table 2-1. powercut 875 specifications Rated Output 60% Duty Cycle* 60 A @ 100 V dc 100% Duty Cycle* 50 A @ 104 V dc Output Current Range 20 to 60 Amperes Open Circuit Voltage...
  • Page 9 6.4mm (1/4") 457mm (18") 9.5mm (3/8") 254mm (10") 12.7mm (1/2") 152mm (6") aluminum 1.6mm (1/16") 5080mm (200") 3.2mm (1/8") 2794mm (110") 6.4mm (1/4") 1219mm (48") 9.5mm (3/8") 432mm (17") 12.7mm (1/2") 356mm (14") figure 2-2. pt-32Eh / powercut 875 cutting performance...

  • Page 10: Optional Accessories

    Units can be mounted to either side of machine using the two upper mounting positions of the end cap handles. 2. Wheel cart, p/N 0558003014 This 98.4mm (3-7/8") high cart has front and rear heavy duty swivel caster to make it easier to roll the Powercut 875 around the job site.

  • Page 11: Installation

    INstallatIoN gENEral Proper installation is important for satisfactory and trouble-free opera- tion of the Powercut 875 cutting package. It is suggested that each step in this section be studied carefully and followed closely. EQuIpMENt rEQuIrED A source of clean, dry air that supplies 170l/m at 5.2 bar (360 cfh at 75 psig) is required for the cutting operation.

  • Page 12: Secondary Output Connections

    sEctIoN 3 INstallatIoN A line (wall) disconnect switch with fuses or circuit breakers should be provided at the main power panel (see Fig. 3-1 and Table 3-1 for WARNING fuse sizes). The input power cable of the console may be connected the chassis must be connected to an approved directly to the disconnect switch or you may purchase a proper plug electrical ground.
  • Page 13 (Customer Supplied) 6.2 to 10.3 bar (90 to 150 psig max) CUSTOMER FUSED LINE DISCONNECT SWITCH (See Table 2.1 and WARNING in regards to chassis ground in Section 3.5.) INPUT POWER CABLE (See Table 3.1) figure 3-1. powercut 875 Interconnection Diagram...
  • Page 14 sEctIoN 3 INstallatIoN...

  • Page 15: Operation

    To extinguish arc at end of cut, press and release torch switch but- position the powercut 875 at least 10 feet (3 ton again or pull torch away from work. When placed in UNLOCK meters) from the cutting area.

  • Page 16: Cutting With The Pt-32Eh

    SWITCH SWITCH POWER ON-OFF (I-O) SWITCH figure 4-1. powercut 875 controls 4.3 cuttINg WIth thE pt-32Eh Use the following procedures to cut with the PT-32EH torch (Figure 4-4). Hold the torch nozzle approximately 3.2mm to 4.8mm (1/8" to 3/16") above the work and tilted at about 15 - 30°. This reduces the chance of spatter entering the nozzle.
  • Page 17 Then follow steps in Section 4.3. If drag cutting is desired for thin material, under 9.5mm (3/8"), remove 70 amp nozzle from torch head, insert ESAB's 40 amp nozzle (P/N 0558002908). Lower current level to 40 amps or lower, (see Auto Drag Scale on front panel).
  • Page 18 sEctIoN 4 opEratIoN Drag cutting, even with lower current levels may significantly reduce the life of torch consumables. NotIcE attempting to Drag cut with higher currents (70 amps) may cause immediate catastrophic consum- able damage. ADJUST GUIDE BY TURNING IN A CLOCKWISE DIRECTION ONLY.

  • Page 19: Common Cutting Problems

    Listed below are common cutting problems followed by the probable cause of each. If problems are determined to be caused by the Powercut 875, refer to the maintenance section of this manual. If the problem is not corrected after referring to the maintenance section, contact your ESAB distributor.
  • Page 20 sEctIoN 4 opEratIoN...

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