TM11-6130-227-40
3-7. Troubleshooting Chart
Symptom
Probable
cause
Corrective
measure
No dc output in either slow- or fast-charge
No ac input . . . . . . . . . . . . . . . . . . . . . . . . .
Check
of
ac
input
cable;
re-
ranges and blower does not operate.
pair or replace (para 3- 12) if defective.
CHARGE SWITCH S1 defective. . . . . . .
Replace
CHARGE
SWITCH
S1
Primary winding of transformer T1 open.
Check
primary
winding
of
transformer
T1
T1 (para 3-12).
No dc output in either slow- or fast-charge
Primary
winding
of
transformer
T1
open.
Check
primary
winding
of
transformer
T1
ranges but blower operates with CHARGE
T1 (para 3-12).
SWITCH
S1
in
one
MED
position.
Rector L1 defective . . . . . . . . . . . . . . . . . .
Dc
outputs
in
fast-charge
range
satisfactory
Check
reactor
L1
replace
but
no
dc
output
in
slow-charge
range.
defective
12).
Circuit breaker CB1 defective. . . . . . . . . .
Check
circuit
breaker
CB1;
replace
if
defective
12).
Dc
outputs
in
slow-charge
range
satisfactory
Replace
TIME
SWITCH
M1
TIME SWITCH M1 defective. . . . . . . . . .
but no dc output in fast charge range.
Blower motor B1 defective . . . . . . . . . . . .
Dc
output
in
both
fast-
and
slow-charge
Check
of
motor
winding
and
ranges
satisfactory
but
blower
does
not
check
rotor
for
binding,
replace
blower
motor B 1 (para 3-12) if defective.
operate.
Transformer T1 defective . . . . . . . . . . . . .
Blower
operates
with
TIME
SWITCH
M1
Check secondary windings of transformer
T1
3-9a);
if
unsatisfactory,
and CHARGE SWITCH S1 in any position
replace
transformer
T1
12).
(except
OFF)
but
no
dc
output
at
any
setting
of
BATTERY
VOLTS
switch
S2.
Rectifier CR2 defective . . . . . . . . . . . . . . .
Check
rectifier
CR2
3-9b);
re-
place
rectifier
assembly
(para
if
defective.
BATTERY
VOLTS
switch
S2
defective.
.
Replace
BATTERY
VOLTS
switch
S2
Dc output cable defective . . . . . . . . . . . . .
Check
of
both
dc
output
cables;
repair
or
replace
defective
dc
output cable (para 3-12).
Relays K2(K1) and K6(K5) defective . . . .
Check
relays
K2
(K1)
and
K6
(K5)
No
dc
output
with
BATTERY
VOLTS
3-9d
and
3-10);
replace
(para
switch
S2
in
6
position;
outputs
with
3-12) if defective.
BATTERY
VOLTS
switch
S2
in
12
24
position
satisfactory.
Relay K1(K6) defective . . . . . . . . . . . . . . .
Check
relay
K1(K6)
(para
and
3-10); replace (para 3-12) if defective.
Replace
BATTERY
VOLTS
switch
S2
BATTERY
VOLTS
switch
S2
defective.
.
Rectifier CR1 defective . . . . . . . . . . . . . . .
Check rectifier CR1 (para 3-9 b); re-
Charging rate higher than 40 amperes cannot
place (para 3- 12) if defective.
be obtained in 6-volt fast charging.
Check
transformer
T1
winding
6-8
Transformer T1 defective . . . . . . . . . . . . .
3-9a);
if
defective
replace
transformer
T1
Relay K6(K1) defective . . . . . . . . . . . . . . .
Check
relay
K6
(K1)
(para
and
3-10); replace (para 3-12) if defective.
Relays K3(K2) and K3(K4) defective. . . . .
Check
relays
K3(K2)
and
K5(K4)
(para
No
dc
output
with
BATTERY
VOLTS
3-9d
and
3-10);
replace
if
switch
S2
in
12
position,
outputs
with
defective.
BATTERY
VOLTS
switch
S2
in
6
or
24
position
satisfactory.
Replace
BATTERY
VOLTS
BATTERY
VOLTS
switch
S2
defective.
.
switch
S2.
Check
rectifier
CR1
3-9b;
re-
Rectifier CR1 defective . . . . . . . . . . . . . . .
Charging rate higher than 40 amperes cannot
place
rectifier
assembly
(para
if
be obtained in 12-volt fast charging.
defective.
Check
transformer
T1
winding
6-8
Transformer T1 defective . . . . . . . . . . . . .
3-9a), if defective, replace transformer
T1 (para 3-12).
Replace
circuit
breaker
CB2
(para
Circuit breaker CB2 defective . . . . . . . . .
3-12).
Check
relay
K5(K4)
(para
and
Relay K5(4)defective . . . . . . . . . . . . . . . . .
3-10); (para 3-12) if defective.
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