Pedaling Is Difficult - Life Fitness Lifecycle LC9500 Service Manual

Lifecycle Upright Bikes LC95, LC91, LC85, C9, C7, 95Ce, 95Ci, 93Ci, and 90C
TROUBLESHOOTING GUIDE
SYMPTOM
During MANUAL program, resistance
variation occurs.
During RANDOM or HILL programs,
resistance is constant without variation
for interval training nor hill
incline/decline.
Pedaling is difficult, feels restricted or,
is not possible when Exercise Bike has
not been started (START key not
pressed).
During exercise program, pedaling is
insufficiently easy, not providing
adequate resistance.
PROBABLE CAUSE
Malfunctioning Alternator
Control Board
Malfunctioning Alternator
Loose wire connections
Worn or damaged harnesses
Malfunctioning Display
Console
Malfunctioning Alternator
Control Board
Malfunctioning Alternator
Malfunctioning Pulley Clutch
Assembly
Alternator Belt excessively
tight
Alternator Belt Alignment OFF
Crank bearings worn
Pedaling too slowly
Program level doesn't
challenge user ability
Loose wire connections
Worn or damaged harnesses
Malfunctioning Display
Console
Malfunctioning Alternator
Control Board
6
CORRECTIVE ACTION
Test with substitute Alternator Control
Board. Replace defective board.
Test Alternator output or, test with
substitute Alternator. Replace
malfunctioning Alternator. Refer to
Alternator Voltage Test.
Disconnect then, reconnect
connections.
Inspect wire harnesses. Replace
worn or damaged harness.
Test with substitute Display Console.
Replace malfunctioning Console.
Test with substitute Alternator Control
Board. Replace defective board.
Test Alternator output or, test with
substitute Alternator. Replace
malfunctioning Alternator. Refer to
Alternator Voltage Test.
Inspect Clutch for free backward and
forward rotation. Replace
malfunctioning Pulley Clutch or
Freewheel.
Inspect belt deflection. Adjust as
necessary. Alternator Belt Deflection:
1/4 inch (6mm)
Realign alternator belt to far users left
groove of the alternator pulley, not in
the center.
Replace Crank Bearings.
Pedal faster than 30 RPM.
Select higher level.
Disconnect then, reconnect
connections.
Inspect wire harnesses. Replace
worn or damaged harness.
Test with substitute Display Console.
Replace malfunctioning Display
Console.
Test with substitute Alternator Control
Board. Replace defective board.