Miller Coolmate 4 Owner's Manual
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OWNER'S MANUAL
Coolmate™ 4
1.
Specifications
Ref. ST-1228 574-A
R f ST 1228 574 A
2.
Safety Symbol Definitions
DANGER! − Indicates a hazardous situation which, if not
avoided, will result in death or serious injury. The possible
hazards are shown in the adjoining symbols or explained
in the text.
DANGER! − Indique une situation dangereuse qui si on
l'évite pas peut donner la mort ou des blessures graves. Les
dangers possibles sont montrés par les symboles joints ou
sont expliqués dans le texte.
Beware of electric shock from wiring.
Attention! Risque d'électrocution due au contact avec des
fils.
Wear safety glasses with side shields.
Porter des lunettes de sécurité avec protections
latérales.
Recirculating Coolant System For Water-Cooled GTAW Torches And GMAW Guns
Use With Guns/Torches Rated Up To 600 Amperes
4 gal (15 L) Coolant Tank Capacity;
Maximum Cooling Capacity: 15,000 BTU/hr At 1.3 qt/min (1.2 L/min)
Dimensions: 18 3/4 in (476 mm) Long, 15 1/4 in (387 mm) Wide, 16 1/4 in (413 mm)
Dimensions: 18-3/4 in (476 mm) Long, 15-1/4 in (387 mm) Wide, 16-1/4 in (413 mm)
Weight: 44 lb (20 kg)
115 Volts, 5.2 Amperes, 50/60, Single-Phase Input Power
OM-624
2007−10
And Non-CE Models
Have only trained and qualified persons install, operate,
or service this unit. Call your distributor if you do not un-
derstand the directions. For WELDING SAFETY and
EMF information, read wire feeder and welding power
source manuals.
L'installation, l'exploitation et l'entretien de cet appareil
doivent être confiés uniquement à des personnes
qualifiées et convenablement formées. S'adresser à un
distributeur si l'on ne comprend pas les directives. Pour
des renseignements ayant trait à la SÉCURITÉ lors du
soudage et aux champs électromagnétiques, consulter
les manuels traitant les dévidoirs et les sources de
courant pour le soudage.
Beware of moving parts.
Attention! Pièces en mouvement.
Recycle or dispose of used coolant in an environmentally
safe way.
Recycler ou éliminer tout liquide de refroidissement usé
conformément aux méthodes prescrites pour assurer la
protection de l'environnement.
126 174P

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Questions and answers

Jeff Tullock
March 10, 2025

There was plastic connection with a sight glass, so you could see if you were getting good water flow to your torch. This was connected just pass the outlet connection coming out of the back of the coolmate 4. You could easily see the water flow thru it. Ours broke but I have no idea where to get it. Is it an accessory that coolmate has, or do I go to my local welding supplier?

Summary of Contents for Miller Coolmate 4

  • Page 1 OWNER’S MANUAL OM-624 126 174P 2007−10 And Non-CE Models Coolmate™ 4 Specifications Recirculating Coolant System For Water-Cooled GTAW Torches And GMAW Guns Use With Guns/Torches Rated Up To 600 Amperes 4 gal (15 L) Coolant Tank Capacity; Maximum Cooling Capacity: 15,000 BTU/hr At 1.3 qt/min (1.2 L/min) Dimensions: 18-3/4 in (476 mm) Long, 15-1/4 in (387 mm) Wide, 16-1/4 in (413 mm) Dimensions: 18 3/4 in (476 mm) Long, 15 1/4 in (387 mm) Wide, 16 1/4 in (413 mm) Weight: 44 lb (20 kg)
  • Page 2 Warning Label Definitions For CE Products S-180 663 Warning! Watch Out! There are Moving parts, such as fans, can cut source, wire feeder, or other major fingers and hands and cause injury. equipment for welding safety possible hazards as shown by the Keep away from moving parts.
  • Page 3: Rating Label

    042288 VOLTS 115VAC AMPERES 5.2A PHASE 1 (Single) HERTZ 50/60Hz LR5071 COOLMATE 4 EVIDENCE OF LABEL TAMPERING VOIDS WARRANTY NRTL/C S-165 371 Symbols And Definitions Some symbols are found only on CE products. Amperes Alternating Current Primary Voltage Single Phase...
  • Page 4 Preparing Cooling Unit For Use Coolant Out Fitting Coolant In Fitting Fittings have 5/8-18 left-hand threads. Use table to select proper coolant, and fill tank. Maintain coolant level at approximately 1 in (25 mm) from filler neck. Unit turns On when plugged in. Tools Needed: 5/8 in GTAW Or Where...
  • Page 5 Connections To prevent overheating, make sure cooling unit is positioned so airflow is not restricted. NOTICE − If welding power source has a water valve, do not connect GTAW Connections hoses to water valve. Connect hoses as shown. GMAW Connections 160 556 / 160 555-B OM-624 Page 5...
  • Page 6: Routine Maintenance

    Routine Maintenance Disconnect power before maintaining. 1 Month Clean Coolant Filter Blow Out Radiator Fins 6 Months Change Replace Replace Coolant (If Unreadable Cracked Using Water) Labels Hoses 12 Months Change Coolant (If Oil Motor Using 043 810 Or 043 809 Coolant) Coolant Maintenance Coolant Filter...
  • Page 7 10. Oiling Motor Wire Form Radiator Wear gloves when handling ra- diator. Remove wire form. Pull radiator out far enough to turn it to the side as shown. Motor Remove plugs and put about 15 drops of SAE 20 motor oil into each oil port.
  • Page 8: Troubleshooting

    12. Troubleshooting Trouble Remedy Coolant system does not work. Be sure input power cord is plugged in to energized receptacle. Check line fuses or circuit breaker, and replace or reset if necessary. Motor overheated. Unit starts running when motor has cooled. Have Factory Authorized Service Agent check motor.
  • Page 9: Parts List

    13. Parts List Includes Items 10&11 131 764-G Figure 13-1. Complete Assembly OM-624 Page 9...
  • Page 10 Item Part Description Quantity Figure 13-1. Complete Assembly ... . 124 377 WIRE FORM, radiator end ..........
  • Page 11 Degrees of Protection provided by Enclosures (IP code): IEC 529: 1989 The product technical file is maintained by the responsible Business Unit(s) located at the manufacturing facility. S/N: KG085472 042288 COOLMATE 4 50/60 IP 23 MILLER ELECTRIC MFG. CO., APPLETON, WI USA dec_cooler_1/07 © 2007 MILLER Electric Mfg. Co.
  • Page 12 Notes...

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