TM 10-3930-641-20
ELECTRICAL SYSTEMS TROUBLESHOOTING (CONT)
(Sheet 1 of 2)
PROBLEM NO. 18
INDICATOR LIGHTS
IMPLEMENT, TRANS, AIR OR PILOT INDICATOR REMAINS ON AFTER CHANGING
(PLUGGED FILTER)
CORRESPONDING FILTER
POWER switch ON. Engine not running.
The individual circuits for these four indicators are identical except for the color of the wire from the lamp socket to the switch. All four circuits
receive their power from the no. 1 fuse (first fuse from left in Left Hand Instrument Panel (LHIP)) when the POWER switch is ON.
All switches are normally-open type switches which ciose if filter pressure drop becomes excessive.
TYPICAL FILTER INDICATOR CIRCUIT
NOTE A
NOTE B
WIRE COLOR
LOCATION
IMPL.
W/DK G
NEAR HYD TANK
XMSN
R/BK
SERVICE CENTER
AIR
R/W
SERVICE CENTER
T/W
NEAR HYD TANK
PILOT (BRAKE)
TA 098614
Go on to Sheet 2
