TM 9-6115-604-34
NAVFAC P-8-633-34
d. Install. Refer to Figure 5-9.
(1)
Install surge capacitor support brackets (32) with hexagon head capscrews (29), lockwashers (30), and
hexagonal nuts (19).
(2)
Install surge capacitor support (28) with hexagon head capscrews (25), lockwashers (26), and hexagonal
nuts (27).
(3)
Install surge capacitor brace (24) with hexagon head capscrews (21), lockwashers (22), and hexagonal
nuts (23).
(4)
Install surge capacitor Cl01 (20) with hexagon head capscrews (16), flat washers (17), lockwashers (18),
and hexagonal nuts (19).
(5)
Install surge capacitor mounting strap (12) and cables (13 and 14), as tagged, with hexagon head
capscrews (8), flat washers (9), lockwashers (10), and hexagonal nuts (11).
(6)
Install cable (14) to surge capacitor C101 (20) with hexagonal nuts (4) and lockwashers (5).
(7)
Install cables (15), as tagged, to surge capacitor Cl01 (20) with hexagonal nuts (6) and lockwashers (7).
(8)
Remove and discard tags.
SECTION VI. RELAYS
5-27. GENERAL. Control and protective relays are used in the generator set. Control relays actuate or deactuate as a
result of operator actions or interaction with protective relays. Protective relays actuate or deactuate as a result of fault
conditions detected by sensors.
5-28. RELAYS K3 THROUGH K7, K9 THROUGH K22, K24 THROUGH K28, A10K1 THROUGH A10K9, AND A11 K1
THROUGH A11 K9. These are socket-mounted, sealed, nonadjustable relays. Relays K3 through K7, K9 through K22,
and K24 through K28 are mounted on two relay panel assemblies (35, Figure 5-9) located in cabinets A and C. Relays
A10K1 through A10K9 and A11K1 through A11K9 are mounted on component board assemblies A10 and A11 (46,
Figure 5-9). See Figure 5-23, Figure 5-24, and Figure 5-25 for relay locations and applications.
a.
Remove. Remove relay (38, Figure 5-9) by removing screw assembly (40) and lockwasher (41) and unplugging
relay from relay socket (39).
b.
Inspect. Check relays (38) and relay sockets (39) for broken or bent pins, shorts from pin to case, and signs of
obvious damage.
c.
Clean. Clean relays with a dean lint-free cloth.
d.
Test. See Figure 5-26.
NOTE
Contacts 3 and 1 and contacts 6 and 8 work opposite to contacts 3 and 5 and contacts 6 and
4.
(1)
Connect a multimeter set to RX1 scale across relay pins 3 and 5.
(2)
Connect a 24 V dc power supply across relay pins 2 and 7.
(3)
Observe that multimeter reads less than 1 ohm.
(4)
Disconnect 24 V dc power supply.
(5)
Observe that multimeter reads infinite ohms.
(6)
Connect multimeter across pins 4 and 6.
(7)
Reconnect 24 V dc power supply to pins 2 and 7.
5-61
