80
35. Changing the cable in the foot control
Removal:
• Lift rubber strip 129 and pull it out with its three feet (fig. 84).
• Pull out the two plugs 130.
• Unscrew and remove the four Philips screws 131.
• Remove housing cover 132.
• Remove the rectangular pedal 133 with guide 134 and take out contact spring 135 (fig. 84 and 85).
• Disconnect the right pressure spring 136 (fig. 85).
• Disconnect the right cable 137 with the contact eyelet (fig. 85).
• Press out or pull out demented resistor track 138 (20-K Ohm-potentiometer) upwards with a
screwdriver or a pair of pliers.
• Remove cable 139.
Fitting:
• Insert cable 139 in the housing.
• Insert the soldered resistor track 138 fully downwards into the guide and secure it with some
adhesive.
• Push the soldered contact eyelet 137 onto the right guide pin.
• Place both cables in the respective guide grooves.
• Place contact spring 135 on the guide pin in the larger right section of pedal 133 (fig. 84 and 85).
• Push pressure spring 136 onto the same guide pin (fig. 85).
• Turn pedal 133 around and push the right spring 136 on the right guide pin of the housing and the left
spring 136 on the left guide pin in pedal 133 (fig. 84 and 85).
• First press the pedal a little to the right and then downwards in such a way that contact spring 135 is
on the right-hand side of resistor track 138 and not bent (fig. 85).
• Press the pedal further down, as far as it will go; at the same time insert guide 134 in its two open
bearings (fig. 84).
• Hold pedal 133 in this position; at the same time replace housing cover 132 and press it firmly on the
housing.
• Insert and tighten the four Philips screws 131.
• Insert rubber strip 129 and the two plugs 130.
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