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turn the unit off (Fig. 1). The target temperature can be increased in When heat gun is used in an enclosed steps of 10°F by pressing the “+” side of the container, such as a shrink tunnel or special temperature button or reduced by pressing the enclosure, ambient air must be allowed to “–” side of the button. Brief pressing of the pass into the heat gun and there must be an button increases or decreases the target outlet of equal size for the heated air to pass out of the enclosure also. Total enclosure will temperature one time by 10°F. Longer pressing cause damage or possible failure to the heat of the button increases or decreases the gun due to the extreme heat generated. temperature continuously by 10°F steps until the button is released or the minimum or maximum temperature is reached. -7 BM 1619929572 08-07 8/28/07 9:45 AM Page 8 SETTING THE AIR FLOW REPROGRAMMING The air flow can be regulated with the air flow button (Fig. 1). Minimum air flow (approx. 3.6-8.8 CFM, depending on temperature setting) Maximum air flow (approx. 17.6 CFM) The CFM at each of the 10 airflow settings depends on the temperature setting. For example, at the lowest temperature (120 degrees) the lowest airflow setting delivers 3.6 cfm, whereas at the highest temperature (1200 degrees) the lowest airflow setting delivers 8.8 cfm The air flow can be increased by pressing the “+” side of the air flow button or decreased by pushing the “–” side of the button. Brief pressing of the button increases or decreases the air flow by one step. Longer pressing of the button increases or decreases the air flow continuously until the maximum or minimum air flow is reached. Decrease the air flow when, for example: The surroundings of the workpiece should not be heated more than necessary. A light workpiece could be blown away by the air stream. PROGRAMMED OPERATION In programmed operation, air flow and temperature settings can be stored in four programs. In each program, any air flow and temperature combination are possible. Also in programmed operation, air flow and temperature can be changed at any time. If the changes are not stored through reprogramming, they are lost when switching the unit off or when changing to another program. To use one of the pre-stored modes, press the program selection button “P” until the number of the required program ( , , or ) as shown in the display (Fig. 2). PRE-STORED PROGRAMS The unit is equipped with the following four pre- stored programs: Program Application Temperature Air Flow 1 Shaping of plastic 480 °F tubing (e.g. LDPE) 2 Welding of plastic 660 °F (e.g. PVC) 3 Removing paint/ 860 °F softening adhesives 4 Soldering 1000 °F Press the program selection button “P” until the number of the program to be reprogrammed is shown in the display. Set the required temperature and air flow (see figure 3). As soon as the values of the program are altered, the symbol blinks in the upper left of the display. After setting the required air flow and temperature, press the store button (for about 5 seconds) until the symbol in the display disappears. The values set are now stored under the program number shown in the display. NORMAL OPERATION To change to normal operation, press the program selection button repeatedly until there is no longer a program number shown over the temperature in the display. The air flow and temperature can be changed at any time. The last set unprogramed values for the air flow and temperature remain stored under the following conditions: – – – REMOVING THE HEAT PROTECTOR For working in especially narrow places, the heat protector can be removed. Be careful of the hot nozzle! Increased danger of burning!WARNING exists when working without the heat protector. To remove or mount the heat protector, the unit must be turned off and have cooled. To cool unit down, run unit briefly in the cool air setting, if necessary. Turn the heat protector counter-clockwise to remove, and clockwise to mount again. USING THE UNIT IN STATIONARY POSITION For cooling of the heated unit or to have both hands free for working, the unit can be set down in the upright position on the stand legs on the rear of the tool (Fig. 6). !WARNING Be especially careful when working with the upright unit! There is danger of burning by the hot nozzle and the hot air stream. -8 BM 1619929572 08-07 8/28/07 9:45 AM Page 9 Typical Applications Temperature settings given in the application examples are suggested values that, depending on the material characteristics, can deviate. The distance between the nozzle and workpiece is dependent on the material to be processed. The ideal temperature should first be ascertained by performing a test. Therefore, begin with a lower temperature setting. All application examples (except figure 5) can be performed without accessories. However, the use of the recommended accessories simplify the work and significantly improve the quality of the results. !WARNING Be careful when changing the nozzle, ...