![Federal Signal Corporation 400HMK-AC Instruction Sheet Download Page 2](http://html.mh-extra.com/html/federal-signal-corporation/400hmk-ac/400hmk-ac_instruction-sheet_548448002.webp)
11. Connect the receptacle from the horn assem-
bly to the plug leading from the terminal block, on
the light assembly.
12. Attach the horn to the mounting brackets,
that were installed in step 10, using two 1/4"-20 x 1/2
hex head machine screws and lockwashers, as indi-
cated in figure 1.
13. Remove the grille cover from the bottom of
the lower housing by removing the four 6-32 KEPS
nuts and washers at the bottom of the housing.
14. If the light/horn assembly is to be ceiling
mounted, attach the light mounting bracket to the
lower housing and reassemble the light before con-
tinuing with the procedure in the light installation
sheet.
15. If the light/horn assembly is to be wall
mounted, replace the lower housing on the assembly
and install the unit following the installation instruc-
tions included with the light.
KIT CONTENTS LIST
Qty.
Description
1 Mounting Box Assy.
1 Gasket
2 Mounting Bracket
4 Grommet
4 Bushing
2 Foam Seal
2 Screw mach., hex hd., 1/4"-20
4 Elastic stop nut, 8-32
2 Lockwasher, 1/4"
-2-