TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
14. MAIN FRAME DOES NOT UNLOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
CONTINUITY TEST
CAUTION
~
Electrical power must be shut
off from circuit before conti-
nuity can be checked. Fail-
ACCESS
UPPER
ure to comply with this cau-
COVER
BODY
tion may result in damage to
test equipment or electrical
system.
(1) Remove four screws, lockwash-
ers and access cover from heater
compartment.
(2) Remove four screws and
lockwashers from cab control
box.
(3) Remove six screws from cab
control box, and separate upper
body from base.
(4) Set multimeter to ohms position.
NOTE
A reading of infinity indicates an
open circuit.
(5) Connect multimeter leads to
BASE
switch terminals. Hold the
joystick in the UNLOAD position,
and check multimeter for
UNLOAD FUNCTION
MICRO SWITCH
4-287
Change 1
