TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
14. MAIN FRAME DOES NOT UNLOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
MAIN FRAME UNLOAD
SOLENOID HARNESS
CONTINUITY TEST
CAUTION
Electrical power must be shut off
from circuit before continuity can
be checked. Failure to comply
with this caution may result in dam-
age to test equipment or electrical
system.
(1) Remove connector from the hook arm
UNLOAD solenoid.
(2) Set multimeter to ohms position.
NOTE
A reading of infinity indicates an
open circuit.
Junction box terminal 19 is con-
nected to one side of the solenoid;
terminal 20 is connected to the
other side.
SOLENOID
(5) Connect multimeter leads to each end
CONNECTOR,
of wire, and check multimeter for
POSITION 1
continuity. Check for continuity
between the solenoid connector,
position 1, and terminal strip, position
19.
(6) Repeat Step 5 to check for continuity
between position 2 in the connector
and terminal strip, position 20.
SOLENOID
CONNECTOR,
POSITION 2
4-279
Change 1
