TM 5-3805-262-20
NOTE
I n f o l l o w i n g p a r a g r a p h s , r e s o u r c e s r e q u i r e d a r e n o t l i s t e d u n l e s s t h e y
a p p l y t o t h e p r o c e d u r e. Personnel required are listed only if the task
requires more than one. If PERSONNEL REQUIRED is not listed it means one
person can do the task. The normal standard equipment condition to start
a m a i n t e n a n c e t a s k i s l o a d e r b u c k e t l o w e r e d t o g r o u n d , e n g i n e o f f,
l o a d e r p a r k e d o n a l e v e l s u r f a c e , ignition key switch in off position,
and parking brake applied. EQUIPMENT CONDITION is not listed unless some
other condition is required besides those indicated above.
10-1. AIR HORN VALVE ASSEMBLY MAINTENANCE
This task covers removal, disassembly, cleaning, inspection, reassembly, testing,
and installation of the air horn valve assembly.
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Fixed open end wrench set
Socket wrench set, 3/8 inch drive
Air fitting, l/4NPTF
MATERIALS/PARTS: Clean cloths (Appendix C, item 1)
Cleaning solvent P-D-680 (Appendix C, item 2)
Detergent (Appendix C, item 3)
PERSONNEL REQUIRED: Two Construction Equipment Mechanics M0S 62B
NOTE
PRELIMINARY PROCEDURE: Front access door unlocked and open, air reser-
v o i r d r a i n v a l v e o p e n e d , a n d f l o o r m a t p u l l e d b a c k f o r a c c e s s t o a ir
horn valve assembly mounting hardware.
REMOVAL (SHEET 1 OF 2)
a .
b .
c .
d .
e .
f .
Using clean cloth, remove dirt and grease from air horn valve assembly and
immediate area.
At air horn valve assembly, beneath front chassis floor plate, loosen nut (1)
and disconnect tube (3) from elbow (4).
If necessary, remove elbow (4) from air horn valve assembly.
I f n e c e s s a r y, loosen nut (5) and disconnect tube (3) from fitting (7). Remove
tube from loader.
I f n e c e s s a r y , r e m o v e f i t t i n g ( 7 ) .
Loosen nut (8) and disconnect tube (10) from fitting (11).
10-2
