Beechcraft TRAVEL AIR 95 Shop Manual page 96

TROUBLE SYSTEM EFFECT PROBABLE CAUSE
15. Open resistor
in positive a. No Charge
a. Defective resistor or potentiometer.
side of voltage divider.
Open
positive
side
of
potentiometer.
16,
Open
collector
load
resistor
a.
No Charge
a.
Defective resistor,
17.
Open
driver emitter
-
base a. Poor switching which will a. Defective resistor.
short output
transistor.
High system voltage.
BATTERY
TROUBLE PROBABLE CAUSE
CORRECTION
1. No power
indicated with
a.
Batteries
discharged or a.
Test with hydrometer
and volt-
battery master
switch
on.
defective.
meter.
b. Open circuit between battery b. Check
continuity.
relay
and
master switch.
c. Master switch
defective.
c. Check switch for
operation.
Replace if necessary.
d. Defective
battery
relay. d. Check
relay
for operation.
Replace if
necessary.
2. Power on with master
a.
Master switch
defective. a.
Check switch for operation.
switch
off.
Replace if
necessary,
b. Battery relay contacts stuck. b. Replace relay.
STARTER
TROUBLE
PROBABLE CAUSE CORRECTION
1. Both
starters
inoperative.
a. Circuit
breaker
tripped
in a. Reset.
starter switch circuit.
b.
Starter
relay inoperative. b. Check continuity
of starter
system.
c. Low batteries. c. Test batteries. If low, replace
or start with external power.
d. Loose
connections or
open
d.
Check
connections
and
con-
circuit between battery relay
tinuity.
and
left
starter relay.
2. One starter
inoperative. a.
Starter
relay inoperative.
a.
Check relay
terminal connec-
tions
and continuity of
solenoid
energizing
circuit. If energizing
circuit is closed and relay does
not operate, replace relay.
b. Poor ground
at
starter. b. Test
continuity
from armature
lead
to ground.
Repair if
necessary.
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