Landice 8700 Side Frame Covers, IR Potentiometer, Membrane Panel, Relay Boards, Safety Lanyard

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SIDE FRAME COVERS

These sit on top of the frame rails and keep deck in place. They also form the base for the traction strip.

IR POTENTIOMETER

The IR Pot is located on the PWM motor control board and is used to adjust the time it takes the PWM to react to a load or amperage spike. It normally requires adjustment if the motor feels like its surging.

MEMBRANE PANEL

This takes information from the display membrane keys and transmits it to upper display board via the ribbon cable. It is found on the PT, CT, and ET models.

PWM (Pulse Width Modulation) Motor Control Boards- Used in home models.

This circuit board is designed to run the drive motor. It takes the AC voltage from the wall outlet and changes it to DC voltage to run the drive motor. The AC voltage comes in on the L1 line and L2 line terminals on the PWM where it’s rectified (change from AC to DC) and comes out as DC on terminals A+ and A- (Armature + and Armature -). Since the PWM motor control switches at such a high frequency, the DC voltage produced is “clean” and relatively free of electrical noise or static. In other words, it needs no external Capacitor or Choke (Inductor) to run the drive motor. It receives its commands from the Upper Display Board via the Relay Board. Generally these need the voltage coming out of the outlet to be + or – 8 % of the PWM rating. For example a 115v PWM should have outlet voltage of at least 106v with a maximum of 124v.

RELAY BOARDS

This circuit board controls the elevation relays, belt relays, DC transformer (for Upper Display Power), and diagnostic lights. It is only found on mills with PWM Motor Control Boards.

SAFETY LANYARD

This is a safety feature that completes a switch in the display board. If it is not connected the treadmill will not run.

SCR (Silicon Controlled Rectifier) Motor Control Boards-Used in LTD (110v) and Club Models (220v) This circuit board is designed to run the drive motor, elevation relays, the belt relay, DC transformer for power to Upper Display Board, and on board diagnostic lights. The SCR requires a Capacitor and Choke to provide “clean” power to the Drive Motor. It receives its commands from the Upper Display Board and eliminates the need for a Relay Board. These require outlet voltage of + or – 10% of the SCR rating.

SLIPCOTE LUBRICANT

Recommended treadbelt lubricant for Landice commercial treadmills.

SPEED SENSOR

Landice uses a magnetic speed sensor to receive accurate speed readings. Readings are taken directly from the flywheel on the motor and sent to the Relay Board or SCR. Distance between the sensor and the flywheel is critical but the sensor is unaffected by dirt or dust build-up (unlike optical sensors).

TAKE UP ROLLER

This is the Roller at the rear of the treadmill. It completes the loop for Treadbelt movement and allows tracking and tension adjustment of Treadbelt.