ENNOTE! If the water does not start circulating, see paragraph Operation disturbances: “The water doesnot circulate ... etc.Do not let any waste and dirt into the water circulation! Check filling volume before starting to weld!Use the cooling liquid according to recommendations, or the one you know as good beforehand.Watch over liquid material´s quality and possible sediments in hoses of the gun.Do not swallow cooling liquid. If somebody has swallowed the liquid, take him immediately tomedical care. Avoid contact with skin and eyes, wash the liquid from your skin with clean water.2.7.2 Operation switchesIn zero (O) position of the power source´s main switch also all operations of the cooling unitare stopped.Cooling unit´s main switch O / iThe electric supply for the pump motor is switched on by main switch key O / i, where thepilot lamp indicates the standby state i. In zero (O) position of the main switch the pumpmotor cannot get started, but the switches and pilot lamps are operating.Fuse (F2)The fuse on the front wall of the cooling unit is short-circuit protection. Use the fuse size andtype according to markings. If the fuse is blowing again, send the unit to service.selecting switch for gun’s cooling mode (sw1)The Kempoweld equipment are suitable to be used with both air- and water-cooled guns.Select cooling mode and correct use and protection functions with switch on the coolingunit´s panel.If your choice is gas, but you are using water-cooled gun, no protection is operating. The pilotlamp is illuminated in position i of the cooling unit´s main switch. However, the control doesnot start the pump.the wrong choice will destroy the gun in short time!If your choice is (water), but you are using air-cooled gun, the pump gets started bypressing on the trigger, if the cooling unit´s main switch is in position i.test switch (sw5)By TEST switch on the panel of the cooling unit you can circulate water without startingwelding. It is used for filling the gun and interconnection cable with cooling water beforestarting welding. By disturbance situations you can always test the water circulation. Alwayscheck entry of return water into the tank before welding!pilot lampspilot lamp for overheating (hw4)If the cooling water in the tank is overheating, the thermal protection will stop the powersource. Operation of the cooling unit is continued for ca. 5 – 7 min automatically. The pilotlamp will switch off after the water in the tank has cooled down, after which the welding willstart from the gun triggering.pilot lamp for lacking liquid pressure (hw3)If the pump does not step up sufficient supply pressure, e.g. when the water is running outor by disturbances in the pump, the whole equipment will stop after ca. 5 s and the red pilotlamp illuminates. Check the equipment like by the installation. See paragraph for OPERATIONDISTURBANCES.Operating controlThe water circulation gets automatically started, when you are pressing on the gun trigger.The post-circulation of water will continue for ca. 5 – 7 min. after the weld end. The time isalways counted from the latest trigger release.11Kempoweld 3200, 3200W / © Kemppi Oy / 1117