TM 5-3810-307-24-1-2
10. DRAWING 22. SECONDARY ANTI-TWO BLOCK SWITCH
FOR USE WITH PILE-DRIVER OPERATION
TO CHECK FUNCTION OF SECONDARY ANTI-TWO BLOCK SWITCH,
MEASURE RESISTANCE AT BOOM NOSE JUNCTION BOX BETWEEN
TERMINALS 2 AND 3 WITH OHMMETER.
SWITCH CLOSED = 4700 500 Ohms (WEIGHT INSTALLED)
SWITCH OPEN => 1 MegaOhm (WEIGHT REMOVED)
G-56 Change-1