Troubleshooting guide

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Monark 839 E
16
Calibration
Although all Ergometers are calibrated at the factory
the user may wish to verify this by performing a
mechanical scale calibration. If so please do the
following.
Remove the cover from the flywheel. Loosen the
balancing spring from the brake belt. Check that the
0-index of the scale is in line with the index of the
pendulum weight. If adjustment is necessary, loosen
first the lock nut. Then change the scale so that the
index of the pendulum is in line with the 0-index of
the scale Tighten the locknut after the adjustment.
Attach a known weight, e.g. 4 kg (Art. No: 9000-
211) where the balancing spring was placed.
NOTE!
The flywheel must be completely stopped before the
weight is hung on!
When correctly set, the weight (4 kg) should be
possible to read from the corresponding place on
the meter panel. Should there be a deviation, adjust
the pendulum to the correct weight on the scale by
means of the adjusting weight inside the pendulum.
To change the position of the adjusting weight,
loosen the lock screw of the weight. Should the index
of pendulum weight be too low, move the adjusting
weight upwards into the weight. Should the index be
too high, the adjusting weight is moved downwards
and locked in the new position. This procedure is
repeated until the correct reading is achieved.
Check the calibration of the pendulum weight once a
year or when needed.
Assemble the front cover again.
Zero adjustment of meter panel
Check that the index on the pendulum weight is
aligned with the index at the 0-position on the scale
board. If adjustment is necessary, first loosen the
locknut(3) and then change the position of the board.
Tighten the locknut after the adjustment. See Fig:
Calibration.
Fig: Calibration
1) Locking screw
2) Adjusting weight
3) Locking nut
4) Brake belt
5) Meter panel
6) Pendulum weight