0013
TM 1-4920-924-13&P
AVIATION SHOP EQUIPMENT CONTACT MAINTENANCE (AV SECM) SYSTEM MAINTENANCE
INSTRUCTIONS FOR WORKBENCH ASSEMBLY - (CONTINUED)
ASSEMBLY
WARNING
SECM workbench assembly weights 146 lbs. Disassemble and assemble rack assembly in
layers while inside of van to allow for safe lifting IAW MIL-STD-1472.
CAUTION
Do not use a drill for assembly.
NOTE
Spring sheet nuts are used to lock aluminum rails to corner castings. Always place one spring
sheet nut in groove of corner casting before inserting into aluminum rails during reassembly.
Use a rubber mallet to secure all connections.
If aluminum rails are replaced during reassembly, it is required to match drill new aluminum
rails using support plate(s) and/or shims(s) before installing support plate to the SECM
workbench assembly.
Spring Sheet Nuts
3
4
2
1
SECM0053
Figure 6.
Spring Sheet Nuts
00139