Life Fitness E5 Service Manual page 9

PROBLEM OBSERVED
Excessive grinding, rubbing,
knocking noises when pedal
levers rotate under load
Pedals slipping or skipping
No change in resistance
Resistance too high
'OFF' displayed in Level
Window on console. (This is
displayed when the Potentiom-
eter (POT) on the servo motor is
not communicating with the
console).
Resistance does not change,
but no 'OFF' message in
Level Window
POSSIBLE CAUSE
Leveler nut not tight against
frame
Noisy pedal lever bearings
Noisy user arm bearings
Noisy idler bearings
Noisy crankshaft bearings
Loose drive belt
Malfunctioning resistance
stepper motor
Broken cable in Eddy Current
brake mechanism
Loose or damaged cables
Cable from resistance
stepper motor to eddy
current brake wrapped in the
wrong direction.
Resistance motor range of
resistance too high
Console in Safety Mode
Mechanical Interference in one
of the links.
Resistance motor range set
incorrectly
Faulty POT on the resistance
stepper motor
Loose or damaged cables
Broken mechanical cable
between motor and eddy
current brake
Broken cable inside the eddy
current brake mechanism
8
CORRECTIVE ACTION
Tighten leveler nut.
Replace pedal lever assembly.
Replace user arm bearings.
Replace the idler assembly.
Replace crankshaft bearings.
Increase tension on drive belt.
Replace resistance stepper motor and
calibrate.
Replace Eddy Current brake mechanism.
Inspect cables for damage. Test cables for
continuity (point to point and point to ground).
If necessary replace cables.
Inspect cable to ensure it was installed
properly.
Resistance motor needs to be recalibrated.
Turn OFF Safety Mode in console settings
menu.
Inspect product to see if any parts are not freely
moving. Replace any damaged parts if needed.
Resistance motor needs to be recalibrated.
Replace resistance stepper motor and
calibrate.
Disconnect and reconnect main cable at the
console.
Disconnect and reconnect main cable at junc-
tion of upright and base frame.
Disconnect and reconnect the resistance step-
per motor cable.
Inspect cables for damage. Test cables for
continuity (point to point and point to ground).
If necessary replace cables.
Replace the cable.
Replace the eddy current brake mechanism or
the small cable.