Bolt Play - Diamond DA20-C1 Maintenance Manual

Maintenance Practices
18. Use a heat source to heat the ambient air
around the bushing installation.
19. Using a thermocouple probe(s) for
temperature, adjust the heat source to
maintain 60 ± 5 °C (140 ± 5 °F).
NOTE: Make sure that the aircraft is monitored every 15 minutes during post cure to
make sure that the temperature remains constant and for safety.
20. Re-install the wing.
4.

Bolt Play

A. Radial Play
The wing connection bolt values given in the table below must not be exceeded.
- A-bolt in spherical bearing
- B-bolt in spherical bearing
- Main bolt in spar stump bushing
- Main bolt in spar bridge bushing
To measure radial play, measure the diameter of the appropriate bolt and bearing/bushing. The
difference between diameters must not exceed the values given in the above table.
B. Axial Play
Maximum admissible values:
- Spherical bearing for B-bolt
To measure axial play, the wing tip is to move forward, then back, the change in the gap between the
fuselage and wing root rib (directly above the B-Bolt), must not exceed the values stated in the above
table.
Page 208
01 Nov 10
Detail Steps/Work Items
57-10-00
Key Items/References
Do not point the heat source directly at the
composite material. This will result in
damage.
Refer to paragraph 2.C.
0.08 mm 0.003 in
0.08 mm 0.003 in
0.125 mm 0.005 in
0.08 mm 0.003 in
0.89 mm 0.035 in.
DA20-C1 AMM
DA201-C1
Rev 17