Power Supply Board; Speed Sensor; Procedure 3 – Checking And Adjusting The Speed Sensor - Bowflex TC1000 Service Manual

3. If there is no voltage, replace the
power supply board. See
Procedure 1.
Procedure 3 – Checking and
Adjusting the Speed Sensor
1. Turn machine on and press
START/STOP.
2. Set the LEVEL to 0.0. Stand on
the two pedals until they go down
as far as they will go. The
number in the DISTANCE
window should increase every
time the pedals are pressed
down.
3. If the number in the DISTANCE
window does not increase each
time the pedal is depressed,
proceed to the next step to adjust
the speed sensor.
4. Remove the covers on the
machine (Items 10 and 16).
Locate the speed sensor on the
unit (Item 37).
5. The air gap between the brake
flywheel and speed sensor
should be 1/8"-3/16".
6. The speed sensor must be
pointed directly at the flywheel so
the eyes of the sensor will
intersect the center of the axis of
the brake. Adjust as needed.
7. Again, stand on the two pedals
until they go down as far as they
will go. If the number in the
DISTANCE window is greater
than zero but does not increase
by one, repeat steps 1-7. If a
reading of zero (0) is displayed,
proceed to step 8.
8. Use a voltmeter to measure the
DC voltage across J5 pin 1 (+)
and J5 pin 2 (-) on the power
7
supply board. Refer to Fig. 4. The
voltmeter should read 4-5 VDC.
9. If there is no voltage, replace the
power supply board (Item 23). If
4-5 volts are present, replace the

speed sensor.

Procedure 4 – Removal and
Replacement of the Brake
Assembly
1. Remove the screws (Item 17)
that fasten the covers (Items 10
and 16) to the main frame. The
covers can be removed now.
2. Tip the entire unit back so that it
is resting horizontally on its two
rectangular shaped feet and the
two pedals. This will allow better
access to the brake from the
underside of the unit.
3. Disconnect the two red wires on
the right side of brake (Item 30).
4. Relieve the tension in the brake
drive belt (Item 42) by loosening
the turnbuckles (Item 29) that are
attached to the brake brackets.
5. Remove the nuts and threaded
bar that hold the brake drive idler
(Item 25) onto the bracket. Also,
loosen the nuts at the lower end
of the brake brackets. With the
idler removed and the brackets
loose, the brake should be loose
enough to remove the belt.
6. Remove the three (3) socket
head screws that hold the brake
assembly to the support bracket.
7. Pull brake away from main frame.
Be careful not to damage the
speed sensor when removing the
brake.
8. Remove the brake from the
machine and set aside to return