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Have a hilti te 805. Has power to and from the trigger switch , but not after the solid state module between the switch and motor. Can the module be bypassed or reset? Is the module needed, what does it do?

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  • Master
  • 2,113 Answers

The module is either a bridge rectifier to create dc or a mosfet used as a speed control

Posted on Nov 20, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: hilti te 10 switch problem

You may research your area for a Hilti service center / dealer or order your part directly from
www.hilti.com
or call (866) 445-8827

Good luck
Aduz

Posted on Mar 15, 2009

  • 123 Answers

SOURCE: hilti te-72 hammer failure

Do not put it in hammer mode and try to unscrew the chuck! This will break the housing internally. To remove the chuck you will have to put a chisel in the chuck. Lock that chisel in a big vice. You will then have to put a pipe wrench on the chuck to unscrew it. It is regular threads but there will be loctite on it. Once that is off your will have a spring and two roller bearings to remove before you can slide the bell off. You will then have 8 5MM screws to remove. This will remove the chuck. You will then have a snap ring to remove. After that you can remove the whole cylinder assy. More then likely your connecting rod is broken.

Posted on Oct 09, 2009

  • 123 Answers

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.

Posted on Oct 29, 2009

Testimonial: "worked well for me"

  • 61 Answers

SOURCE: I have a Hilti TE 905 AVR the service light came

If you have the old type TE905, which is the one with the square type handle at the back, the service light will come on for 2 reasons. Either there is a tight bearing which will increase the amount of current used to work the machine. Or more common the carbon brushes need replacing. To reset the light, simply cure the problem.

If you have the newer type TE905 with the large “D” Type handle at the back. It gets a bit more complicated. The service light will come on for the same reasons as mentioned above, but it will also come on after 200 hours of use. It will continue to work for another 50 hours with the light on, then it will shut down completely. This is to ensure that it gets regular service. Once serviced or repaired, it will require resetting. To do this you with need a Hilti optical interface, a PC, and Hilti ODA Software. This is not available to the general public. If your Hilti is less Than 2 years old, call Hilti. They will pick it up, repair it, and send it back to you in 3 working days FREE OF CHARGE. If it is older than 2 years there will be a charge for the repairs.
I hope this helped you. Please leave feedback

Posted on Dec 13, 2009

ftw1952
  • 10319 Answers

SOURCE: Hilti TE 12. It will not hammer.

the rotory cam has been broken inside if not producing the hammer effect

Posted on Mar 11, 2010

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http://www.us.hilti.com/holus/

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My hilti te 6-s stopped working trigger looks to be ok. wondering how to test trigger and motor to be sure niether is the issue. thnx


I would first check the cord to the switch and then the 2 wires coming from the motor to the switch to see if they have continuity. UNPLUG tool first. to be on the safe side remove the bottom cover 2 T15 Torx screws and look at the brushes also and while apart if you have compressed air blow thru all the openings. The switch is hard to check so I would check everything around it first and if OK I would say a bad switch.

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