10-2. AIR HORN ASSEMBLY MAINTENANCE
This task covers removal, disassembly, cleaning, inspection, reassembly, and in -
stallation of air horn assembly.
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Fixed open end wrench set
Socket wrench set, 3/8 inch drive
No. 1 Supplemental Organizational Maintenance Tool Kit
MATERIALS/PARTS: Clean cloths (Appendix C, item 1)
Cleaning solvent P-D-680 (Appendix C, item 2)
Detergent (Appendix C, item 3)
Horn repair kit (FSCM 51511 PN 21320)
PERSONNEL REQUIRED: Two Construction Equipment Mechanics M0S 62B
PRELIMINARY PROCEDURE: Front access door unlocked and open and air
reservoir drain valve opened.
Loosen nut (1) and disconnect tube (3)
from elbow (4). Dont remove compression
sleeve (2) or nut (1) from tube (3).
If necessary, remove elbow (4) from air
horn assembly (8) port.
While assistant holds capscrews (7) using
socket wrench, loosen and remove two nuts
(5) and lock washers (6) while supporting
air horn assembly.
Remove air horn assembly (8) and two cap-