L-852C-D ITCL Taxiway Centerline Inset Lights
Maintenance
©
2009 ADB Airfield Solutions, LLC.
96A0311F
Page 4-3
All rights reserved
Issued 3/05
2.
If using an anti-seize lubricate, instead of threadlocking adhesive, on the
threads check with the manufacturer of the anti-seize lubricate to find out
what the
Lubricity
"k"
factor
is for the compound that you are going to be
using and then refer to Table 4-2.
Table 4-2 Determining Torque Based on "K" Factor
If "k" factor is…
Then recommended torque is…
0.13 141/151
In-Lbs
0.14 152/162
In-Lbs
0.15 164/173
In-Lbs
0.16 175/180
In-Lbs
0.17 180/190
In-Lbs
0.18 197/207
In-Lbs
NOTE:
Always torque the bolts across the corners. See Figure 4-1. To torque
the outer bolts across corners, tighten bolts in noted sequence: #1 and #4, then #2
and #5, then #3 and #6.
NOTE:
Applying more than one drop of Loctite to the bolt threads will create
future difficulty in removal of the bolts.
NOTE:
After several re-lampings, threaded holes may accumulate with dirt and
excessive Loctite. If this occurs, screws may not seat properly. Clean holes with
light weight oil or diesel fuel using a small fiber brush. Wipe the holes clean with
alcohol to remove all oil or diesel fuel and dirt. Clean with dry, oil-free, low-
pressure air. After the bolt has been retorqued three times, replace with new bolt.
If bolt is continuously loose, inspect taped thread in the light base flange for
damage. If the thread in the light base is damaged, contact ADB Airfield
Solutions, Inc., Sales Department for field repair inserts kit.
Figure 4-1 Torquing Mounting Bolts
Retorquing Mounting Bolts
(contd.)
Bolt #1
Bolt #2
Bolt #3
Bolt #6
Bolt #5
Bolt #4
