TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
12. HOOK ARM DOES NOT UNLOAD IN MANUAL MODE (MODEL A ONLY) (continued).
CAB CONTROL BOX
VOLTAGE TEST
CONNECTOR (J2)
(1) Remove cab control box
connector (P2) from cab control
box.
(2) Turn engine start switch to ON
position.
(3) Turn light control switch to
STOP LIGHT position.
(4) Set multimeter to voltage
position.
(5) Place positive (+) probe of
multimeter on cab control box
connector (J2), position G.
(6) Place negative (-) probe of
multimeter on known good
ground, and check multimeter
for voltage reading.
(7) Turn engine start switch and
light control switch to OFF
CAB CONTROL BOX
position.
CONNECTOR (P2)
4-43231
2- 6. 7
Change 1
