TM 11-6130-227-40
c. Relay K1(K6). Relay K1(K6) should operate
equipment deenergized and with the part discon-
n e t t e d from the remainder of the circuit. The ap-
w h e n 16 to 18 volts is applied to its coil (across
p r o x i m a t e resistances of the winding of reactor L1
t e r m i n a l s 1-2) and should release when the voltage
and of the coils of relays K1 through K6 are given in
is reduced to approximately 13 volts.
d. Relays K2-K6(L1-K5). Relay K2-K6(K1-K5)
the chart below.
(ohms)
each should operate when a voltage of 4.8 volts
Terminals
Item
0.412
1-2
Reactor
L1
( m a x i m u m ) is applied to its coil (across terminals
400
1-2
Relay
K1(K6)
1-2).
8.0
1-2
Relays
K2
through
K6
(K1
through
K5)
Make all resistance measurements with the
IV.
REMOVAL
AND
REPLACEMENT
OF
PARTS
AND
TESTING
AFTER
REPAIR
a n d unsolder and disconnect the other cable lead
NOTE
f r o m the solder connection (fig. 3-6). Release the
All
maintenance
parts
for
Charter
strain relief bushing (9, fig. 3-3) in the back of the
Battery
PP-1660()/G
(TM
c a s e (12, fig. 3-1) and pull out the ac input cable.
11-6130-227-40P) are replaceable at
g e n e r a l support.
W h e n reinstalling the ac input cable, connect the
cable lead with a lug to TIME SWITCH M1 (19, fig.
3-3). Splice the other cable lead to one lead of blower
m o t o r B1 (6 fig. 3-4) and the black lead from the
All parts of the PP-1660( )/G, except transformer
primary winding of transformer T1 (4, fig. 3-3).
T1, are readily accessible when the cover of the case
Solder the connector and tape securely.
is removed and can be removed and replaced in-
d i v i d u a l l y without first removing any other
parts.
c o n n e c t o r ) dc output cable is connected to resistor
I n s t r u c t i o n s for the removal and replacement
of all
R 1 (12, fig. 3-3) and the negative (black connector)
functional parts are provided in paragraph
d c output cable is connectd to circuit breaker CB2
When removing parts or repairing wiring, tag
leads
(13, fig. 3-3). To remove either dc output cable,
and mark terminals for positive indication before
disconnect it, release the strain relief bushing (10 or
d i s c o n n e c t i n g any wiring to assure correct recon-
11, fig. 3-3) in the back of the case (12, fig. 3-1), and
nection. When wiring is replaced, use wire that
pull out the cable.
conforms with that specified in figure 3-6.
remove the mounting screws and nuts, and carefully
r e m o v e ammeter M2 from the front panel from the
NOTE
Most
parts
can be reinstalled
by
front. When reconnecting the ammeter leads, be
sure to observe correct polarity (fig. 3-6).
remounting
them
in
their
original
f. TIME SWITCH M1 (19, fig. 3-3). Loosen
the
l o c a t i o n s with the original hardware and
two setscrews that secure TIME SWITCH knob
reconnecting the leads. Replacement
MP12A (6, fig. 3-1) and pull the knob off the shaft.
i n s t r u c t i o n s are given only when special
Disconnect the leads, remove the locknut, and
procedures or precautions are required.
remove TIME SWITCH M1 from the front panel
from the rear. When reinstalling TIME SWITCH
top and three screws from each side of the cover and
M1, rotate the shaft fully counterclockwise and
carefully lift off the cover.
i n s t a l l TIME SWITCH knob MP12A (6, fig. 3-1) so
t h a t the pointer is at SLOW CHARGE. Be sure to
the two hexagonal nuts that fasten blower motor B1
t i g h t e n both setscrews.
( 6 ) to the bracket. Disconnect the leads at blower
g. CHARGE SWITCH S1 (2, fig. 3-3). L o o s e n t h e
motor B1 and lift out the blower assembly. To
two setscrews that secure CHARGE SWITCH
r e m o v e impeller MP4 (5, fig. 3-4) loosen the set-
k n o b MP12B (9, fig. 3-1) and pull the knob off the
screw in the hub and pull impeller MP4 off the shaft
shaft. Disconnect the leads, remove the locknut, and
of the motor B1.
r e m o v e CHARGE SWITCH S1 from the front panel
Disconnect
one
from
the
rear.
When
reinstalling
CHARGE
cable lead from TIME SWITCH M1 (19, fig. 3-3)
