English | 11Bosch Power Tools 1 609 92A 2T6 | (31.3.16)Switching Off– To switch off, press the On/Off button 4 until the LED indi-cator 5 goes out.Automatic shut-off:Note: The glue pen switches off automatically after 10 min-utes in order to save energy.– Switch the glue pen on again and check the LED indicator5.When the battery LED indicator briefly lights up red, thebattery must be recharged. After use, place down the glue pen in a safe manner andallow it to cool down completely before packing itaway. The hot nozzle can cause damage and/or burns.Working Advice Do not allow the hot glue or the nozzle tip to come intocontact with persons or animals. Glue and nozzle tipreach a temperature of approx. 170 °C; danger of burning.If hot glue comes into contact with the skin, hold the affect-ed area immediately under a stream of cold water for sev-eral minutes. Do not try to remove the glue from the skin.Use only glues recommended by the manufacturer of the gluepen (see page 3).Bonded connections can loosen under the effect of moisture.Preparations for GluingThe surfaces to be glued must be clean, dry and free ofgrease.The materials to be glued as well as the surface on which youare working may not be easily ignitable or inflammable.Check the suitability of heat-sensitive materials first on a testworkpiece.The ambient temperature and the workpieces to be glued maynot be colder than +5 °C and warmer than +50 °C.Materials, such as metal, which cool off the glue quickly,should be preheated with a hot air gun.Gluing (see figure B)– Insert the appropriate glue stick 6 for the material beingglued via the opening at the rear of the glue pen.– Switch the glue pen on and allow it to heat up (see “Switch-ing On”, page 10).The glue pen is ready for operation after approx. 15 sec-onds.– Press the feed trigger 3 applying moderate pressure.– Apply the glue only on one side (also see “Practical Ad-vice”, page 11).– After applying the glue, immediately press the surfaces tobe glued together. Correcting the gluing location is stillpossible at this point.The glued spot can be subjected to load after a cool-downperiod of approx. 2 minutes.Practical AdviceRemove glue residue after cooling with a blunt object. If re-quired, glued spots can be separated again by applying heat. Do not use inflammable solvents for cleaning the sur-faces to be glued. Solvent remainders can ignite from thehot glue, or hazardous vapours can develop.Glue remainders on clothing cannot be removed.Glued spots can be painted.Troubleshooting – Causes and Corrective MeasuresMaterial/Workpiece RecommendationLarge-surfaces, long work-piecesApply the glue in the form ofpointsFlexible materials(e.g. textiles)Apply the glue in linesProblem Cause Corrective MeasureThe glue stick is not transported. Glue stick used up. Insert a new glue stick.Glue stick diametre too large or small. Use recommended original glue sticks.Glue stick too short. Use recommended original glue sticks.Insert a new glue stick.Glue stick falls out of glue pen. Glue stick diametre too small. Use recommended original glue sticks.Long after-run or dripping periodafter relieving the feed.Melting temperature of glue stick toolow.Use recommended original glue sticks.Glue pen dripping continuouslywithout feed actuated.Melting temperature of glue stick toolow.Use recommended original glue sticks.Feed blocked through glue escap-ing toward the rear.Glue stick diametre too small.and/orMelting temperature of glue stick toolow.Use recommended original glue sticks.Glue does not flow uniformly. Melting temperature of glue stick toolow.Wait for heating time of glue pen to elapse.Feed not uniform. Actuate feed trigger slowly and uniformly.OBJ_BUCH-1693-004.book Page 11 Thursday, March 31, 2016 4:01 PM