TM 55-1520-240-23-10
16-28
ADJUST FORWARD OR AFT CARGO HOOK SWITCHES (AVIM)
(Continued)
16-28
LOAD-BEAM OPEN SWITCH ADJUSTMENT
Load-beam is spring loaded closed.
Be careful when opening or closing
load-beam, to prevent injury to
personnel.
19.
Rotate knob (17) counterclockwise. Rotate and
hold load beam (15) open. Release knob. Reset
latch (29) to closed position. Release load beam.
Load beam shall rest on bottom of latch.
20.
Connect multimeter (22), set to RX1 scale,
between pins B and F of connector plug (23).
21.
Remove lockwire and loosen two screws (30)
and nuts (31).
22.
Move load-beam-open switch (20) toward
actuator arm (21) as far as it will go.
23.
Move load-beam-open switch (20) away from
actuator arm (21) until multimeter (22) reads 0
ohm.
24.
Tighten two screws (30) and nuts (31).
25.
Rotate knob (17) counterclockwise. Load beam
(15) shall return to closed and latched position.
Release knob. Check multimeter (22) reading.
Multimeter shall read infinity.
26.
Rotate knob (17) counterclockwise. Rotate and
hold load beam (15) open. Release knob. Reset
latch (29) to closed position. Release load beam.
Load beam shall rest on bottom of latch. Check
multimeter (22) reading. Multimeter shall read
0 ohm.
27.
Rotate knob (17) counterclockwise. Load beam
(15) shall return to closed and latched position.
Release knob. Check multimeter (22) reading.
Multimeter shall read infinity.
28.
Torque screws (30) and nuts (31) to 15
inch-pounds. Lockwire screws. Use lockwire
(E227).
29.
Disconnect multimeter (22) from connector plug
(23).
16-156