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#11
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New SB (SB-G09) on elevator pushrods for most all Grobs
On Tuesday, May 5, 2020 at 10:17:09 AM UTC-4, soaringjac wrote:
See the link below http://www.ltb-lindner.com/g-102-ad-...rod_200408.pdf The lower rudder bolt picture that I took isn't very good. There is some some access near the bolt head and nut but not enough to get wrench on them. We are going to do some fine Dremel dental work to get access. |
#12
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New SB (SB-G09) on elevator pushrods for most all Grobs
Modify a tool, not the glider.
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#13
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New SB (SB-G09) on elevator pushrods for most all Grobs
Schleicher rudders have a hole in the bottom so you can get a socket with extension on the nut. Don't have a Grob handy at the moment to see. We had no problem removing the rudder from the club Twin.
Forceps might be helpful putting it back together. |
#14
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New SB (SB-G09) on elevator pushrods for most all Grobs
On Tuesday, May 5, 2020 at 10:17:09 AM UTC-4, soaringjac wrote:
See the link below http://www.ltb-lindner.com/g-102-ad-...rod_200408.pdf Our club member and retired toolmaker had to modify some box wrenches to remove the lower rudder bolt. A small amount of Dremel work was still needed to gain access. Removing the elevator pushrod bolt is no easy task because of the tight access. Elevator pushrod was extracted and the required 6 mm hole drilled. No water or corrosion found in the pushrod. Awaiting inspection, reassembly and logbook entry by our A&P. Chuck Zabinski |
#15
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New SB (SB-G09) on elevator pushrods for most all Grobs
On Saturday, May 9, 2020 at 12:18:13 AM UTC-7, wrote:
On Tuesday, May 5, 2020 at 10:17:09 AM UTC-4, soaringjac wrote: See the link below http://www.ltb-lindner.com/g-102-ad-...rod_200408.pdf Our club member and retired toolmaker had to modify some box wrenches to remove the lower rudder bolt. A small amount of Dremel work was still needed to gain access. Removing the elevator pushrod bolt is no easy task because of the tight access. Elevator pushrod was extracted and the required 6 mm hole drilled. No water or corrosion found in the pushrod. Awaiting inspection, reassembly and logbook entry by our A&P. Chuck Zabinski Thanks for the update! Had a quick look at mine and it is a bit tight around the lower bolt of the rudder. Does your Astir CS have the "welded" type or the "riveted" type pushrod? |
#16
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New SB (SB-G09) on elevator pushrods for most all Grobs
On Tuesday, May 5, 2020 at 10:17:09 AM UTC-4, soaringjac wrote:
See the link below http://www.ltb-lindner.com/g-102-ad-...rod_200408.pdf Our Grob 102 Astir CS had the "welded version" elevator pushrod consistent with the Service Bulletin. BTW: All the hardware requires 10 mm wrenches. The elevator pushrod bolt & nut required a modified box wrenches. Chuck Zabinski |
#17
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New SB (SB-G09) on elevator pushrods for most all Grobs
Could you give some information on the required tool modifications?
Thanks. OK 9-5-2020 19:52 wrote: On Tuesday, May 5, 2020 at 10:17:09 AM UTC-4, soaringjac wrote: See the link below http://www.ltb-lindner.com/g-102-ad-...rod_200408.pdf Our Grob 102 Astir CS had the "welded version" elevator pushrod consistent with the Service Bulletin. BTW: All the hardware requires 10 mm wrenches. The elevator pushrod bolt & nut required a modified box wrenches. Chuck Zabinski |
#18
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New SB (SB-G09) on elevator pushrods for most all Grobs
On Sunday, May 10, 2020 at 2:55:29 PM UTC-4, okko kloosterman wrote:
Could you give some information on the required tool modifications? Thanks. OK 9-5-2020 19:52 wrote: On Tuesday, May 5, 2020 at 10:17:09 AM UTC-4, soaringjac wrote: See the link below http://www.ltb-lindner.com/g-102-ad-...rod_200408.pdf Our Grob 102 Astir CS had the "welded version" elevator pushrod consistent with the Service Bulletin. BTW: All the hardware requires 10 mm wrenches. The elevator pushrod bolt & nut required a modified box wrenches. Chuck Zabinski The 10 mm box wrenches were ground down to thin the outer circular support structure that supports the gripping teeth. This lets the wrench fit into bolt access recess in the rudder. Even with that, a slight amount of Dremel work may be required to get the wrench to fit on the bolt nut. Also small hands and patience are required to remove the elevator pushrod bolt. Chuck Zabinski |
#19
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New SB (SB-G09) on elevator pushrods for most all Grobs
So did anybody find any evidence of corrosion inside the pushrod ?
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#20
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New SB (SB-G09) on elevator pushrods for most all Grobs
At 14:17 05 May 2020, soaringjac wrote:
See the link below http://www.ltb-lindner.com/g-102-ad-sb.html? file=tl_files/ltb_lindner/pdf/G%20102%20LTA%20%26%20TM%2 0Englisch/SB-G09_elevator%20pushrod_200408.pdf So did anybody find any evidence of corrosion in the pushrods ? |
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