Housing; Crank Arm And Bearings - Life Fitness Lifecycle 9100 Service Manual

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Lifecycle 9100 and 9500HR Series Exercise Bikes
How To...REMOVE AND REPLACE THE CRANK ARM AND BEARINGS
Tools Required: Special crank arm wrench required (available from Life Fitness), torque wrench 30 FT. LBS. with
32mm open end, punch, Standard screwdriver, hex key set, and clean rag
WARNING! IF THE INFORMATION IN THESE INSTRUCTIONS ARE NOT FOLLOWED EXACTL Y. THE
EXERCISE BIKE MA Y BE DAMAGED. VOIDING YOUR WARRANTY. TO INSURE PROPER INSTALLA TlON.
SERVICE BY A LIFE FITNESS AUTHORIZED REPRESENTATIVE IS STRONGLY RECOMMENDED.
1. Remove the exercise bike PEDALS and HOUSING.
2. Remove the DRIVE BELT.
3. With a Standard screwdriver, remove the three SPROCKET DUST
COVER SCREWS (if equipped). Guide the SPROCKET DUST
COVER off of the CRANK ARM.
4. Using a 5/32 inch hex wrench, remove the two BEARING CLAMP
BOLTS, two LOCKWASHERS and four BEARING CLAMPS from the
bike frame. Discard the two bearing clamp bolts, two split washers,
and four bearing clamps. DO NOT reused.
Torque
50-60 In Lb.
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5. Bend the outward tab of the TAB LOCK WASHER to allow rotation of the REVERSE THREADED lOCK NUT.
Using the 32mm crank arm wrench, loosen and remove the REVERSE THREAD lOCK NUT. Remember that
this nut is reverse threaded.
NOTE: NUTS ON THE LEFT SIDE ARE REVERSE THREADED. CLOCKWISE TO LOOSEN.
COUNTERCLOCKWISE TO TIGHTEN.
6. Remove the TAB LOCK WASHER off the inside CRANK NUT on the left side of the bike. Discard the TAB
LOCK WASHER. DO NOT REUSE THE TAB WASHER.
7. Using a 32mm crank arm wrench, loosen and remove the left side REVERSE THREADED CRANK
BEARING/NUT ASSEMBLY and slide it over the CRANK ARM.
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8. Remove the CRANK ARM from the CRANK TUBE by tilting it from its
vertical position to a horizontal position. Guide the crank arm through the
crank tube until it has been completely removed from the right side of the
bike.
9. With the 32mm crank arm wrench, loosen and remove the right CRANK
BEARING/NUT ASSEMBLY from the CRANK ARM.
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