16 04.001.21.25.0 V4 02.04.2014
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Digital ECOMETER · Operating and Installation Instruction
Installation
1. Unscrew the hub cap with a 120 mm hub cap spanner.
Important: bayonet lock!
Do not use an impact driver.
Turn the hub cap back from position 1 to position 2 by turning
anti-clockwise about 30°. The hub cap lifts clearly o the ECO
unit in this position and can be pulled o axially.
2. Remove the clasp locking ring and retaining key from the axle
screw.
3. Insert a new retaining key with integrated magnet into the
recess in the axle screw and the gearing of the toothed lock
washer.
Do not turn back the axle screw.
1
2