I have a Hilti TE 55 hammer drill, it just stopped working. What could the problem be? Switch?

SOURCE: Hilti TE-60 hammer drill

what I would do if you have a fax machine is call 1-800-879-8000 and request a schematic on this tool first. Some of their products are not that easy to disassemble. I never have worked on the TE-60 but have on some of their other products and they are all different. Hope this helps

SOURCE: hilti te92 starts up then stops after a little use

It could be the contacts on the switch are burning out. The 92 also had an electronic speed regulator that could be going out.

After you run the drill and it stops. Unplug the drill, take the handle off and apart. Feel the screws on the switch were the wires are connected. If one of them is hot to the touch that usually means the contacts are burning up.

SOURCE: Hilti TE 17 Rotary Hammer repair switch fix

If you are talking about the wire going from the switch to the stator it difficult to get to. You have to remove the motor end cap, cooling fan and handle holding the switch. this will get you to the brush holders. These can be brittle so you need to be carefull. Turn the motor over and tap the end of the armature on concrete checking the brush holders every couple of taps to see if they are coming out of the motor housing. after they clear they will just come out. If you havn't done so already remove the wires going to the brush holders. Your stator will simply slide out after your brush holder comes out. This will give you access to the wires to repair.

Hope this helps.

Testimonial: "worked well for me"

SOURCE: HOW DO YOU DISASSEMBLE THE GEAR BOX SECTION OF A

Its not that hard. however I have been working with hiltis for 22 years. once you have removed the handl assembly, remove the 4 screws which hold the motor unit to the gearbox. you will lose oil but dont worry. this will expose the drive gears. the smaller one is the crank drive or the hammer action. the larger one is the clutch assembly for the drilling action. remove the smaller of the 2 gears from its shaft by removing the circlip. you should now be able to see the circlip which holds the crankshaft into the gear housing. remove the circlip and pull out th crankshaft, this will be a tight fit so you may have to hold the shaft in a vice and carefully fit the gear housing using a rubber mallet. now you have to remove the chuck. 1st remove the rubber cap by getting a large flat screwdrivver behind it. using circlip pliers, remove the c-clip (wear safety goggles) the rest of the chuck parts should them be able to be removed with easy. you should now be able to see a large circlip, remove it. you can now remove the oil seal. this will need replacing as it is hard to remove without damage. part number 206105. under the seal there is another circlip. once this is removed you will be able the remove the guts of the gear box. again you may have to put the chuck tube in a vice and tap the gearbox housing with a rubber mallet. again you will loose oil. to reassembly just reverse the prosess. remove the oil filler cap to ensure that the crank shaft locates on the con rod . once reassembled replace the oil. 40cc only. transmission oil is good and the closest match you will get to the origional. for more info send me an email.

[email protected]
www.wysehire.gi.

ps before you start make sure that parts are still available for this machine asit is quit old (no offence).
The piston rings (17955) are but i dont know about the oil seal.
you car get the seal from any car parts shop. it is a double lipped seal 35mm x 62mm x 10mm.

I hope this has helped. please leave feed back.
email me if you want a diagram sent.

Happy xmas

SOURCE: te70 hilti hammer drill

The TE-70 is permantly lubricated. You would only add lubricant if you took the tool apart. You can add a small amount of grease to the end of your bit occasionally before putting in the chuck. This keeps the chuck parts lubed.