Calibration - Monark 881 E Manual

Calibration

Calibration is done at the factory. If you for some
reason want to check the calibration, do as follows:
Tighten the brake belt through turning the control
knob so that pointer goes up to about 25-50 Watt
at rotation of the crank. Place the bike on the edge
of a table so that the calibration weight can hang
freely, see Fig: Calibration. Loosen the screws for
the clamping plate(3), so that the end of the belt is
loose. Fasten a 2 kg weight (Art. No: 9000-212) to
the brake belt. This weight should now be read on the
scale at 2 kp. See Fig: Watt scale. Should there be a
deviation between the position of the pointer and the
2 kp marked on the scale, adjust the loading spring
by turning the adjusting screw (1) until the correct
position is obtained, see Fig: Calibration and Fig:
Watt scale. Turn clockwise if the pointer is placed
too high and turn counter clockwise if the pointer is
placed too low. Remove the weight and release the
workload. Hold the brake belt in a position where the
pointer can not go further down than to 0 on the scale
and attach the brake strap screw and clamping plate.
The height level of the cranks is adjustable when
loosen the nuts(5), see Fig: Adjustments. Set the crank
arms at the desired position(7) and fasten with the
nuts. If the cranks are not in line, adjust these. First
set the left hand crank straight upwards. Then loosen
the right hand crank by undoing the crank arm screw
(6). Adjust the position of the right hand crank so it is
in line with left hand crank and tighten the screw.
5
6
7
8
Fig: Adjustments
5) Nuts
6) Crank arm screw
7) Graduated scale
8) 3 different positions
8
3
Monark 881 E
2
Fig: Calibration
1) Adjustment screw
2) Brake belt
3) Screw for clamping plate
2
Fig: Watt scale
4) 2 kp
1
4