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New guy needs repair help with new heli


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Ozzief16a
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Joined: 25 Jul 2013
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Location: Pensacola, FL area

PostPosted: Sat Aug 10, 2013 12:47 am
PostPost subject: New guy needs repair help with new heli
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Hello all,

I'm new to this form and to r/c helis. I've owned a Walkera Master CP electric powered heli for a couple of weeks (this is my first r/c aircraft). After making several hard landings I've managed to break off the tail skid that keeps the tail rotor blade from contacting the ground - it's officially called the tail gear holder.

I have a replacement tail gear holder but I can't figure out how to remove the old damaged tail gear holder. The tail rotor blade shaft is held in place by a plastic "bushing" and metal washer, the plastic bushing is held in place by what appears to be a set screw - only it doesn't have a screw head or hex slot to get a screw driver or hex wrench into to screw out to allow the plastic bushing and metal washer to be removed from the tail rotar blade shaft to allow it to be removed. Thanks in advance.
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tombo242
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Joined: 04 Nov 2008
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Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Sat Aug 10, 2013 4:56 am
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Welcome Larry,

Wish I could help here but you need a Walkera man not me. I'm sure that one will be along soon to give some useful advice. There are a number of good friendly people here and we all help as much as we can. You will get it storted.

Tom.
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admiral
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Joined: 20 Mar 2009
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Location: Brisbane, Australia

PostPosted: Sun Aug 11, 2013 4:19 am
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Hi Ozzief16a,

Welcome to the forum.

I think the part your talking about is what we would call the Vertical Stabilizer if so it is molded into the motor case and you need to replace the whole piece.

Hope this helps.


http://www.helipal.com/hm-mastercp-z-15-tali-gear-holder.html
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Ozzief16a
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Joined: 25 Jul 2013
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Location: Pensacola, FL area

PostPosted: Sun Aug 11, 2013 6:27 am
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I think the part your talking about is what we would call the Vertical Stabilizer if so it is molded into the motor case and you need to replace the whole piece.

Hope this helps.
===========================================================

Thanks for your reply. Identifying the part in question was not my problem, I already have the replacement part. My problem is I can't figure out how to remove the old black plastic piece that secures the tail rotor shaft in place - illustrated by the white arrow in the attached picture. thank you all for your responses.
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admiral
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Joined: 20 Mar 2009
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Location: Brisbane, Australia

PostPosted: Sun Aug 11, 2013 11:42 am
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Hi Ozzief16a,

If there is no Hex or Phillips screw then it is probably a friction fit, have you tried punching it out, I never had anything to do with this model, but that is my best guess.
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Burgess
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Joined: 27 Mar 2012
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Location: Wales

PostPosted: Sun Aug 11, 2013 10:14 pm
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Hello Larry and welcome to the forum.

Here's picture of the HM-MasterCP-Z-02 Tail Rotor Blade components
http://www.helipal.com/hm-mastercp-z-02-tail-rotor-blades.html
and as can be seen there is a black ring (retaining collar) and a cross-point machine screw. From that, and your report, it would seem that the screw-head on your tail rotor collar has been cut-off. The reason for doing so is balance.

By reason of the collar being plastic, You may be able to remove the collar from the shaft with a gear puller (which you'll need for replacing pinions on both motors) and then remove the remnants of the screw. However, CA may have been used during assembly. If removal successful replace with a hex set screw.
Perhaps fitting an alloy collar complete with set-screw may be an option.



Burgess
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