Landice L Series Diagnostic And Service Manual page 91

Drive Motors-
1. Motor Brushes-
a. Are they worn so that less than 3/8 of an inch is left? Replace Brushes.
b. Are they wearing on an angle? Check that brushes are seated correctly and that
motor brush holder and spring are installed properly.
2. Commutator-
a. Is it burnt, scratched, or scored? Use commutator stone to clean. If it is too badly
damaged motor must be replaced.
3. Motor Shaft-
a. Does it seem to wobble? Check that flywheel and pulley are tight and in line.
b. Is shaft visibly bent? Replace motor.
Electronic Boards-
1. Any burn marks? Check for correct voltage coming in and out of board. If voltage is
incorrect replace board.
2. Loose or detached components? Reattach if possible or replace if not.
Elevation Motor-
1. Check for fractured housing or broken motor mounts- Replace if necessary
Treadbelts-
1. Check for fraying on sides of belt. Likely cause is improper tracking. Check if tracked
correctly. If minor, cut frayed ends off. If major, replace belt.
2. Lines or wear or top of belt one or two inches in from sides. Caused by user standing on
side rails and letting heel of shoe rub on belt. Instruct user on proper use of treadmill.
3. Running on diagonal. Check the belt is tracked correctly. Check that front roller is
properly aligned. Rarely, treadmill frame may be out of square.
4. Underneath belt- If belt is glazed, has black lines running through it, or is worn through
backing, replace belt and use new deck surface.
Treadmill- Does it appear to be off level? Check that wheels in front are not broken. Check that
feet in back are installed properly. Check that mill is on level surface and shim accordingly.
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