Install Landing Gear  If
you
didn’t install the U-805-1 and U-806-1 wear
plates when you drilled the gear, you will need to install them
now. Start by putting temporary bolts back into the 3/8,
5/16, and 7/16 holes to align the U-805-1 and U-806-1 wear plates with
the holes in the WD-813s and WD-822s. Bolt the wear plates
with the AN4 bolts. Remove the temporary 3/8, 5/16 and 7/16
bolts.
When I finally installed the gear, tightening the main gear bolts was not easy. The three inboard nuts for the U-804 were not hard to get to, but the outboard two for the U-803 were. I have the older three-hole F-802C instead of the newer one with the long slot. It looks like the new slot will allow easier access to the nuts. I
had to cut down a cheap wrench to make it fit inside the gear box and
fit over the nut, almost straight down due to the lip inside the
WD-822. Then I torqued the bolts from the outside.
I figured out the friction drag torque by turning the bolts with the
torque wrench before I pulled the nut tight. The lowest
setting on the wrench that let me turn the bolt was the friction drag
torque. I added this to the 240 in/lbs called for in the
plans. See AC 41-14b, chapter 7 for more info on friction drag
torque. Then I checked to ensure I had the .030 gap between
the U-803 and the U-805-1.
  If you use some adapters or extenders to torque the nuts from the inside, make sure you compute the final torque reading you need to use. This figure from AC 41-13b shows how to compute the correct torque values.
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