TO REPLACE CRANK BEARINGS THE PEDALS AND CRANK SHAFT HAVE TO BE REMOVED HOW DO THEY COME OFF
If I remember right the threads on the pedals are left handed, which means you turn in opposite direction than normal. then you unscrew the nut on the crank. The race for the bearings will have a slot. Use a screwdriver to turn it the normal way. Take out that bearing. Then move crank a little way to the other side to get bearing out from the inside race. Then you should be able to pull crank through.
On the newer bikes, the crank can be dismantled on each side so all you have is a shaft to remove. You still remove the race and bearings the same way.
Use
a flat screwdriver to unseat the tabs that hold the front top cover
in place. This will expose the flywheel and pedal arm connection
points. Rotate the flywheel by hand and determine whether lubrication
will accomplish the repairs. If the bearings are exposed, use a
grease gun with an extension nozzle and lubricate both bearings with
lithium grease. If the bearings are damaged or sealed, proceed to the
next step.
2
Remove
the front and side covers on the main frame. Hold the flywheel with
one hand and use a box wrench to loosen the bolts that secure the
pedal arms at each side of the flywheel. Pull the arms away from the
flywheel and remove the bearings from each side.
3
Test
the bearings as before. Lubricate exposed bearings with lithium
grease and reinstall them. Sealed bearings must be replaced. Reattach
the pedal arms to the flywheel. Replace the main frame covers and
front top cover to complete the repairs.
Link Arms
1
Unplug
the power cord. Identify the pivot points where the lower handlebars
and the footpad link arms connect at each side of the machine. Use a
screwdriver to remove the inside and outside elbow covers at each
connection. This will expose the pivots.
2
Put
a box wrench on the lock nut at the inside of one pivot and loosen
the bolt with an Allen wrench. Remove the bolt and check the assembly
for nylon spacers or a bearing. If no spacer is found, proceed to the
next step. Replace the nylon spacers, reassemble the connection and
reattach the elbow covers. Repeat this at the opposite side of the
machine.
3
Have
an assistant hold a deep socket against the inside face of the pivot
hub. Make sure the socket is large enough to allow the bearing to pop
out. Insert the point of a flat screwdriver into the outside of the
hub until it contacts the bearing. Tap the handle of the screwdriver
with a hammer to remove the bearing. Repeat this to remove the
bearing on the opposite side.
4
Hold
each bearing next to one ear and turn the inner race with your
finger. If you hear grinding noises or the bearing is rough, it must
be replaced. Lubricate the bearing with lithium grease and a grease
gun. Replace the bearing into the hub. Reattach the lower handlebars
and footpad link arms and put the elbow covers on.
Lubrication
1
Detach
the ends of the pedals from the crank axles. Spread a layer of
machine grease over the crank axles, then reattach the ends of the
pedals.
2
Remove
the bolts connecting the pedals to the swing arms. Detach the pedals
from the arms, then spread a layer of machine grease over the axles
on the swing arms. On some models, the bolts may also serve as the
axles. Reattach the pedals to the arms.
3
Remove the bolts connecting the swing arms to the elliptical's upright. Detach the swing arms from the upright, then spread a layer of machine grease over the axles on the upright. Reattach the arms to the uprigh
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