Core Health & Fitness Stair-Climbing Fitness Machine 4400 CL

Remove the step chain retainers

Support the pedal arm and unhook the pedal arm return spring from the spring hanger. Lift the step chain up and off the clutch sprocket and lower the pedal arm to the floor. Repeat on the other side.

Remove the snap ring from the left end of the drive shaft

Wear eye protection when removing snap rings

Remove the sprocket and the other small parts from the left side of the hub assembly

Slide the drive shaft to the right, out of the hub assembly

Do not confuse the right-hand clutch sprocket with the left-hand clutch sprocket when removing

Disconnect the DC power cable from the connector located on the bottom side of the left bottom cover

Remove the fastener located on each side of the lower edge of the bottom cover

Disengage the locking tabs and remove the lower cover

Remove the cover fasteners and separate the left and right top cover

Remove the Poly-V and HTD belts

Loosen and remove the four nyloc nuts and bolts from the hub

Remove the assembly from the frame

Reassemble in the reverse order

Ensure the belts are properly tensioned

Refer to the 'Poly-V and HTD belt' section for tensioning details

Loosen and remove the two step chain retainer bolts

Check clearance between the step chain and the step chain retainer

Reverse the removal procedures to install the step chain retainer

Unhook the pedal arm return spring from the spring hanger

Detach the spring from the step chain by removing the master link

Check the condition of the spring-chain connector

Is the spring-chain connector in good condition (hour glass shape)?

Replace a worn spring-chain connector

Check that the spring pulley turns freely and is not worn excessively

Refer to the “Spring Pulley” section if you have to replace the pulley