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Replace the roller bearings into the brass worm gear - apply a small amount of grease to the
edges. These may have to be tapped into
place using a nylon hammer or a block of
wood. Apply lubrication to the brass gears. |
Place
the brass gear back onto the RA shaft and place
the washer back to the top. Note the brass gear has a layer of lubrication on its gears and on the bearing face. |
Replace the assembled worm carrier and replace cap headed screws but only just tight enough to
hold the worm carrier in
place. |
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Remount the Alt-Az base of the mount to the RA axis - make sure the roller bearings faces
are given a smear of lithium
grease. |
Replace the tapered bearing after making sure it is clean and has been well greased with the
lithium grease. |
Replace the round slotted nut and tighten. This needs to be not much more than hand
tight. Make sure that it is compressing
the tapered bearing into
place. Check slack in the RA axis and if
it binds too much then slightly then
loosen this nut. |
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Tighten down the locking screws located in the slots of the round nut. |
Replace the Right Ascension scale and set-screw. |
Replace the polarscope base plate. Don't over- tighten. |
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Tighten down the small set screws in the polar- scope mounting
plate. |
Replace
the RA brass button and lock nut and and make sure its has been lubricated
with lithium grease. |
Replace the RA locking lever and make sure it
is free to lock and release the
axis. |
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You will now need to replace the motor gear on the worm spindle
if you omitted that step earlier.
The power cover has not been
replaced as you will need it off to carry out the adjustment to the worm/motor
engagement. This procedure is covered
HERE.
When worm/motor engagement has been completed
proceed to the final step of replacing the
motor and power
covers. |
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Replace the RA lock lever screw. |
Replace the polarscope.
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Replace the plastic motor cover. |
Replace the 6 Phillips screws in the motor
cover. |
Replace the polarscope cover. The polarscope will require recalibrating. See my polar alignment guide
HERE |