TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
11. HOOK ARM DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY) (continued).
VOLTAGE TEST
(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
CAB CONTROL BOX
on cab control box connector (J2),
CONNECTOR (J2)
position J.
(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 position.
CAB CONTROL BOX
CONNECTOR (P2)
4-4-211
214.5
Change 1
