|
|
|
|
Zenith CruZer & Sonex Logs
|
Date: 2-22-2019
|
Number of Hours: 0.00
|
Manual Reference: C75-FA-5-6-4
|
Brief Description: Install motor mounts
|
|
After wrapping up the gussets and side skin-to-firewall drilling, I tackled the motor mounts.
Positioned the upper mounts on the longeron, clamped, and drew a line on the bottom of the mount reflecting the edge of the longeron. Removed the mounts, measured 10mm from each end, and a spot corresponding to the centerline of the longeron, and pilot-drilled the mount. Clamped mounts in place and drilled -thru the mounts into the longerons. Up-drilled to #12 to accomodate an AN3 bolt.
Moving on to the lower mounts, I deteremined the centerline of the mount and drilled the front of the mount (facing the firewall) just enough to make a mark. Removed the mount and drilled the hole in steps up to #20. Cleco'ing the mount in place, I then ensured the centerline of the mount lined up with the centerline of the existing lower longeron holes, and drilled from the bottom of the fuselage with a #40 bit just to mark the spot for the holes. Removed mounts and pilot-drilled the mounts. Re-cleco'd, the up-drilled the holes to #12 in steps to accomodate AN3 hardware.
|
|
Right upper mount pilot drilled
|
|
lower right mount final-size drilled
|
|
|
|
|
|
|
|
|
Copyright © 2001-2024 Matronics. All Rights Reserved. |