Troubleshooting
Testing Drive Motor: Generation Test
46
6.3.3. Elevation Motor
Elevation motors consist of an electric motor and screw shaft. If noise is heard only during a change in the elevation:
• Clean the elevation screw and nut.
• The gearbox may be damaged. If a grinding noise is coming from the gearbox, replace the elevation motor. See
• Check that the motor mounts are not damaged. If either one is, noise can be a consequence of flexing and rub
-
bing.
• Replace the Clevis mount. See “Clevis Mount” on page
• Replace the elevation assembly. See “Elevation Assembly” on page
6.3.4. Drive Motor and Drive Belt
Drive belts make a high-pitched squeal when they are worn or improperly tensioned. It can also happen when the
drive pulley and drive roller are misaligned.
The drive motor is an electric motor with a flywheel and pulley attached. The only serviceable parts are the brushes.
If noise is heard from the following sources, perform the prescribed solution. Otherwise, replace the drive motor.
See “Drive Motor” on page
• Tinny or clicking sound if the fan is rubbing against the fan cover. Try to pry the cover away from the motor,
being careful to not damage either.
• Metallic grinding noise if the motor brushes are very worn. Replace the brushes. See “Drive Motor Brush
Replacement and Commutator Inspection Instructions” on page
• Buzzing noise if the brushes are hung up in the brush holder. Reinstall the brushes correctly. See “Drive Motor
Brush Replacement and Commutator Inspection Instructions” on page
6.4.
Testing Drive Motor: Generation Test
If the motor fails any of these tests, replace it.
All Landice drive motors (110 & 220) are direct current (DC). A DC drive motor can generate a DC voltage when it is
manually rotated. The DC output is linear to the speed at which the motor is rotated. To perform the Generation Test
follow these steps:
1. Unplug treadmill from wall outlet.
2. Disconnect drive motor from motor control board.
Note:
Set DMM for Volts DC (VDC)
3. Connect DMM (digital multi-meter) to the drive motor wires.
• Motor plus (+) = Red test lead from DMM
• Motor minus (-) = Black test lead DMM
4. Position the DMM so you can read it while standing on the treadbelt.
5. Start to push or run on the treadbelt.
Note:
You are spinning the drive motor manually. The faster you spin the motor, the higher the DC voltage on the DMM.
Содержание L7 Club
Страница 1: ...L7 L8 L9 Treadmill 90 Series Service Manual...
Страница 4: ...Grounding Instructions 4...
Страница 16: ...Introduction Recommended Tools 16...
Страница 26: ...Electrical Reference Harnesses 26...
Страница 30: ...Routine Maintenance Maintenance Checklist 30...
Страница 102: ...Replacement Parts 102 Figure 8 8 Control Panel 17 16 15 13 14 12 11 11 9 5 3 7 6 2 4 8 1...
Страница 116: ...Replacement Parts 116...
Страница 119: ......
Страница 120: ...111 Canfield Avenue Suite A 1 Randolph NJ 07869 1 800 LANDICE Tel 973 927 9010 Fax 973 927 0630 www landice com...