JUST DRILLING AND NOT HAMMERING,
Refer to your manual - most hammer drills have one or two switch settings to turn the hammer function on or off.
SOURCE: Bosch 11247 Hammer drill works
Usually replacing the o-rings on the piston, striker and Impact bolt will solve any hammering issues. That is considering there is no damage to the mechanical parts in the hammer mechanism.
SOURCE: Bosch rotary hammer (model # 11230EVS) drill will not rotate
There is a clutch in the main spur wheel of the unit. These sometime begin to slip, on rare occasions they will slip to the point where the drill will not rotate. If you are interested the part number for this clutch is 1617000817.
Yes you can.
Make sure the transformer is rated for more power than the drill label states so that you don't burn up the transformer if you stick the drill bit.
For instance, if the drill is rated for 5 amps at 230 volts you should get a 1500 watt transformer. 230 x 5= 1150 watts; the next common size up is 1500 watts. You don't want an 1200 watt if it is available.
Transformers are also rated in KVA [Killovolt-amps] so the same transformer would be 1.5 KVA.
Do the math for your drill and save future problems. If a transformer doesn't have a rating with real numbers, avoid it. There are lots of really cheap ones on the market that you will regret buying.
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