Retrofitting Of Additional Components; Retrofitting Of Potentiometer - Baelz Automatic BA 375-E42 Operating Instructions Manual

Motorized Rotary Actuator

6. RETROFITTING OF ADDITIONAL COMPONENTS

6.1 Retrofitting of potentiometer

Disconnect actuator from power supply before starting work!
Danger
1. Remove capacitor bracket.
2. If the actuator is equipped with a heating element, the potentiometer retaining plate [5]
is already fitted and can be used for potentiometer assembly. Put potentiometer R1 [1]
into retaining plate [5] and fasten with a lock washer and nut. Place two locking rings
on the pinion [8] and fit the pinion to the potentiometer shaft. Solder the potentiometer
wiring to the potentiometer, insert downwards through the Ø8 mm hole and connect to
the lower part of the plug connector [2] red-28, gray-29, yellow-30. Fix the lower part of
the plug connector [2] to the potentiometer retaining plate [5] using allen screws M2.5x6
[4].
3. If no heating element is fitted, clip the spacer [9] to the potentiometer retaining plate
[5]. Replace the allen screw on the gear cover with the spacer bolt M4x22 [7]. Fit the
potentiometer retaining plate [5] into the actuator, clip the spacer [9] into the gear cover
and fix to spacer bolt M4x22 [7] using allen screw M4x6. To eliminate backlash, gently
push the potentiometer assembly in the direction of the camshaft whilst tightening the
screw. Insert the capacitor bracket into the retaining plate [5] and fix with allen screw
M4x6.
Fig. 5: Fitting the potentiometer
W. Baelz & Sohn GmbH & Co. · Koepffstrasse 5 · 74076 Heilbronn · Germany · www.baelz.de
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2 x locking ring
baelz 375-E42
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