Landice ELLIPTIMILL E8, Руководство по обслуживанию

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PAGE 43
1. BRAKE MOTOR:
Remove the brake motor from the drive pulley bracket and disconnect the harness. Then take out
the phillip head screws holding the dc motor in place and pull DC motor out. Using a digital
multimeter set to ohms (
Ω ), place your meter probes inside the clear insulation across the yellow and
orange wires. You are measuring resistance so you do no need to observe polarity.
- Turn knob of pot completely counter clockwise. Then slowly turn the knob clockwise and you
should measure 1.5
Ω – 4.6K Ω .
- Turn knob of pot completely counterclockwise and you should measure 4.6K Ω – 1.5 Ω
Now place meter probes across red and orange.
- Turn the knob of the pot completely clockwise. Then slowly turn the knob counterclockwise
and you should measure 4.6K
Ω – 1.5 Ω .
- Turn knob of pot completely clockwise and you should measure1.5 Ω – 4.6K Ω .
Now place meter probes across yellow and red.
- Total resistance should be 4.6K Ω
2. RELAY BOARD:
The relay board runs on DC voltage. The DC voltage is delivered to the relay board from the J1
connector from the power pack. If the green +12V LED is illuminated then that means the relay
board is being powered from the power pack. If this LED does not come on, then check to make
sure AC voltage is coming out of the wall. After confirming voltage out of the wall, inspect the line
cord for any damage. If the condition of the line cord is fine, then check the connections from the
power pack to the relay board. If the connections are fine, then measure DC voltage from the J1
connector. Set your voltmeter to DC volts, place you red test lead at the back of the J1 connector
and your black test lead on any of the phillips head screws that mount the relay board into place.
You should measure at least 12Vdc. If the relay board is receiving DC voltage then it must be
replaced.
3. SPEED SENSOR:
The speed sensor can be checked for proper operation by entering DIAG mode (see page 36). There
is also a yellow SPEED LED soldered to the relay board. The LED will flash ON and OFF when
you rotate the drive pulley slowly by hand. This indicates proper operation of the speed sensor. If
you do not get this flashing to occur, then check for proper speed sensor gap and check connections.
If this does not help, then replace the speed sensor.
TESTING COMPONENTS