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Components
Introduction
13
Elevation Potentiometer
Attaches to Elevation Motor and gives feedback on treadmill incline to Upper Dis
-
play. Must be calibrated whenever elevation motor is replaced. A Potentiometer
should be checked if there is a problem with elevation or if Error Code “PO” occurs.
ESI PWM
Control Board that is a combination of the PWM, relay board, and DC Transformer.
Delivers power to the upper board, elevation motor, and drive motor.
Faceplate
Overlay used on RTM models and is screwed onto the Upper Display Board.
Frames (Side)
One on either side, these connect with the Deck Slats to form the treadmill’s frame.
Frame Covers (Side)
These sit on top of the Frame Rails and keep Deck in place. They also form the
base for the Traction Strip.
IR Potentiometer
Located on the PWM 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
appears to be surging or lacking torque.
Membrane Panel
Sends information from the display membrane keys to Upper Display Board via the
ribbon cable. It is used on all models except the RTM.
Open Loop Speed (O.L.S.)
Mode
Test mode that removes the speed sensor from equation of running treadmill. This
mode gives access to speed feedback and control the speed of the treadmill on a
running unit.
Safety Lanyard
This is a safety feature that closes the circuit that allows the treadmill to operate
while in normal position, fully retracted in the lower control panel. If the lanyard is
pulled, and thus pulls out its yellow block, the circuit is opened and the upper con
-
trol removes power from the treadmill drive motor and stops. When this happens
the console displays
SAFE
.
SCR (Silicon Controlled Rec
-
tifier) Control Boards (Club
Models, 220v))
This board runs 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.
Speed Sensor
Landice uses an optical speed sensor to produce accurate speed readings. Read
-
ings are taken directly from the flywheel on the motor and sent to the PWM or SCR
Motor Control PCB.
Take Up Roller
Roller at the rear of the treadmill. It completes the loop for Treadbelt movement and
allows tracking and tension adjustment of Treadbelt.
Treadbelt
The surface the user walks on. It rides over the deck and rollers.
Upper Display Board
This controls information from the Membrane panel or Faceplate. It then transmits it
to the PWM board on Home models and the SCR on Club models.
Upright
The main inverted “U” tubular frame holds the wire harness, console, the cross
member, and the handrails.
Upper Wire Harness
Transmits data from lower electronics to upper electronics.
Lower Control Panel
Quick controls
VFX System
Shock-absorbing System. Consists of wood Deck, VFX Deck Post, Deck Spacer,
Deck Load Washer, Deck Felt Washer, and Deck Impact Absorber.
Table
2-5
Component Descriptions (Continued)
Component
Description
Summary of Contents for L7 Club
Page 1: ...L7 L8 L9 Treadmill 90 Series Service Manual...
Page 4: ...Grounding Instructions 4...
Page 16: ...Introduction Recommended Tools 16...
Page 26: ...Electrical Reference Harnesses 26...
Page 30: ...Routine Maintenance Maintenance Checklist 30...
Page 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...
Page 116: ...Replacement Parts 116...
Page 119: ......