TM 55-1520-240-23-10
16-28
ADJUST FORWARD OR AFT CARGO HOOK SWITCHES (AVIM)
(Continued)
16-28
HOOK-LOADED SWITCH ADJUSTMENT
30.
Connect multimeter (22) set to RX1 scale,
between pins A and F of connector plug (23).
31.
Remove lockwire and loosen two screws (32).
32.
Move hook-loaded switch (33) toward actuator
arm (34) as far as it will go.
33.
Connect 250 pound load (35) to load beam
(15). Load shall be straight down and centered
on beam.
34.
Raise hoist (1) until load (35) clears ground.
35.
Move hook-loaded switch (33) away from
actuator arm (34) until multimeter reads 0 ohm.
36.
Tighten two screws (32).
37.
Lower hoist (1). Remove 250 pound load (35)
from load beam (15). Check multimeter (22)
reading. Multimeter shall read infinity.
38.
Connect 250 pound load (35) to load beam
(15). Load shall be straight down and centered
on beam.
39.
Raise hoist (1) until load (35) clears ground.
Check multimeter (22) reading. Multimeter shall
read 0 ohm.
40.
Lower hoist (1). Remove 250 pound load (35)
from load beam (15).
41.
Torque two screws (32) to 15 inch-pounds.
Lockwire screws. Use lockwire (E227).
42.
Disconnect multimeter (22) from connector plug
(23).
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