TM-9-2320-283-20-1
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3
DECEMBER 1983
TM-9-2320-283-20-1 - Page 251 of 926
TM 9-2320-283-20-1
TROUBLESHOOTING.
2-11.
TROUBLESHOOTING PROCEDURES (Continued).
MALFUNCTION
INSTRUCTION
INDICATION
YES
NO
37.
ETHER LAMP AND/OR CLEARANCE LAMP NOT WORKING (Continued).
2.
Check for voltage at
12-volts dc
Go to step 3.
Repair cir-
circuit 29E-BR termi-
nominal.
cult 29E-OR
nal of clearance lamp.
and/or 29-BR
NOTE
With positive lead on circuit 29E-BR, check ground with
negative lead when doing the following checks.
3.
Check for voltage at
12-volts dc
Go to step 4.
Clean and/or
ground point of circuit
nominal.
tighten
99D-BK.
ground con-
4.
Check for voltage at
12-volts dc
Go to step 5.
Repair cir-
circuit 99D-BK termi-
nominal.
cuit 99D-BK
nal of washer lamp.
(para 3-127).
5.
Check for voltage at
12-volts dc
Go to step 6.
Repair cir-
circuit 99B-BK termi-
nominal.
cult 99B-BK
nal of ether lamp.
(para 3-127).
6.
Check for voltage at
12-volts dc
Replace bulb
Repair cir-
circuit 99A-BK
nominal.
(para 3-85).
cuit 99A-BK
terminal of clearance
(para 3-127).
lamp.
7.
Check for voltage at
12-volts dc
Replace bulb
Repair cir-
circuit 29F-BR termi-
nominal.
(para 3-85).
cult 29F-BR
nal of ether lamp.
(para 3-127).
2-126
Back to Top
