ARMY TM 9-6115-670-14&P
5-58
5.21. RELAY SOCKETS.
This task covers: Replace
INITIAL SETUP
Tools
General Mechanic's Tool Kit
(Item 1, Appendix B)
Equipment Conditions
MASTER ON-OFF switch on APU control unit set
to OFF.
Electromagnetic safety relays removed (para
5.20.).
Materials/Parts
Relay Socket
REPLACE
a. Remove four screws (JTACS), or slotted hex-head bolts (SICPS and WIN-T), flat and lock
washers (5, Figure 5-15), and remove generator housing top cover (4).
b. Remove two screws, wing nuts and lock washers (7a) (JTACS), or four slotted hex-head bolts
(SICPS and WIN-T), flat and lock washers (7), and generator housing side cover (6) (muffler
side).
c. Tag and remove electrical leads from relay sockets (2).
d. Remove two screws (1), two nuts with captive washers (3), and remove relay sockets (2).
e. Install relay sockets (2) and secure with two screws (1) and nuts with captive washers (3).
f. Install electrical leads in relay sockets (2) and remove tags.
g. Install generator housing side cover (6) and secure with two screws, wing nuts and lock
washers (7a) (JTACS), or four slotted hex-head bolts (SICPS and WIN-T), flat and lock
washers (7).
h. Install generator housing top cover (4) and secure with four screws (JTACS), or slotted hex-
head bolts (SICPS and WIN-T), flat and lock washers (5)
WARNING
Ensure that APU DC power supply is disconnected.
Failure to observe this warning could result in severe
injury or DEATH to personnel.
WARNING
Ensure that the APU is turned off and completely de-
energized before opening generator housing.
Failure to observe this warning could result in severe
injury or DEATH to personnel.