Make sure you back of the bolts before you re-torque them.

HUB COMPRESSION METHOD





Hub Thickness (in.)
Desired Hub Compression
Bolts
Torque

(Bolt Rev.)

3 3/8
0.020
3/8-24
0.49



1/2-20
0.41

4
0.024
3/8-24
0.58



1/2-20
0.48

4 3/4
0.029
3/8-24
0.68



1/2-20
0.57

5 3/8
0.032
3/8-24
0.77



1/2-20
0.65

CAUTION: Final bolt-torque should be within the range shown below,
Table No. 2






TABLE NO. 2



WOOD PROPELLER INSTALLATION

TORQUE WRENCH METHOD


Size of Steel Aircraft Bolts






Specification
dia. (inches)
Recommended Wrench Torque (in-lbs)

AN6
3/8
200 +/- 25





AN7
7/16
250 +/- 25








Jan Carlsson
www.jcpropellerdesign.com

"SteveR" skrev i meddelandet
...

Tonight I'm going to install a prop on my plane (Pietenpol with a
Continental A-75) and go up for a quick flight. I've never done a prop
install before, so I want to make sure I get it right.

I figured I'll torque the bolts, run the plane for 10-15 minutes on the
ground, check the torque, take it up for a brief test flight, then check
the torque again. Any tips or things I should be careful for or watch
for? I'm a little nervous as I'll be doing it without anyone looking
over my shoulder.


--
SteveR