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c
section
The Teleflex 301 Autopilot has an adjustable
current limit that
accommodate Teleflex motors and should NOT be
adjusted except by trained personnel. Serious
damage to the motor control circuit can occur
the limit I s set too high. This adjustment should
only be made after all other options have been
examined.
The adjustment
is
upper
of the large terminal block. Remove the
right
sealing sticker from
afterwards.
Turn the
pot clockwise to increase
trim
and counter clockwise to reduce
1. Push the
AUTO button to engage the relay.
.
2. Turn the course setting knob
the current
limit
.
course knob
turned.
is
4. Now, increase the current limit by 1/10 turn incre-
ments until the motor just runs freely both ways. Note:
the point of free running may be slightly different
two directions due to component tolerances. However, if
appreciably different (more than 1/10 of a turn) sus-
it is
pect a fault in the
possible.
To
5 .
allow for added rudder loading at speed,
trimmer an additional 20" or
6. The motor should
adequate power while allowing for reasonable circuit
.
protection.
amps
preset at 26
made with the trim
before adjusting and replace
it
limit.
the
to
turn
until the motor stops running when the
FET
drive circuit.
clockwise.
run freely both ways with
now
Servicing and
to
if
pot
it
current limit
the
over the motor.
the
in
FET
failure
is
the
turn
Troubleshooting
I
I
I
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