
tighten the clamp, it will press the platter evenly onto the spindle, seating it fully.
Make the clamp very tight but don’t overdo it. Leave the pliers and wrenches for
things such as plumbing repairs.
2.12 Before proceeding farther, wash your hands to remove as much of the skin oils
as possible. Moisten a clean, lint-free cloth or paper towel with Windex ™ and
wipe off the outer rim of the platter. Having done this, moisten a cotton swab
with isopropyl alcohol and clean the two grooves in the motor pulley.
2.13 Locate the plastic envelope containing the drive belt. Remove the belt, shaking it
as you do so to deposit the excess powder back into the bag. Shake off all loose
powder. Do not discard the bag. It contains sufficient extra powder to allow
repowdering the belt many more times.
2.14 Fit the belt around the outside of the platter. Next, pull the portion of the belt that
is adjacent to the motor pulley and stretch it to fit around the motor pulley’s top
(smaller diameter) groove. Replace the Motor Cover Plate. Make sure each
post has a lock washer atop it before putting the Cover Plate in place. Making
the caps finger-tight is all that is required.
3. MOUNTING THE TONEARM
3.1 If you have a blank (without armhole) mounting board: NOTE: DO NOT peel off
the protective paper from acrylic boards until after the armhole has been drilled.
The paper will help protect the high-gloss surface beneath the paper.
3.11 Put the arm board back in its original position and fasten it with three
screws on the right-hand side. You need only give the screws a few turns
by hand—just enough to keep the board from sliding around.
3.12 Using the arm manufacturer’s template and per their instructions, mark the
location of the tonearm hole.
3.13 Remove the board from the MK-3 so as not to get any debris on the
chassis, and drill the hole or holes using commonly accepted safety
practices including eye protection and gloves.
3.14 Go to Step 3.3 below.
3.2 If you have a pre-cut arm board: Confirm that it is the correct board for the arm
you are mounting. Fasten the tonearm to the board according to its
manufacturer’s directions. Do not attach the arm’s cable for now.
3.3 Place the board, with arm attached, in place on the Mk-3. Do not fasten it with the
six arm-board screws yet.
3.4 Look at the position of the chassis with respect to the base. If the right corner with
the arm in place has dropped more than 1/16” from its position without the arm in
place, you may want to raise the corner for cosmetic reasons. To raise that
corner, remove the board with arm attached and put it down carefully so as not to
damage the part of the arm that extends below the arm board.
3.5 With one hand, lift the chassis off the rear right-hand spring, using the armhole in
the chassis. With the other hand, rotate the spring counterclockwise. One
revolution of the spring raises or lowers it 1/16”. Replace the arm board. This
adjustment is only for cosmetics, so you need not spend an inordinate amount of
time on it.
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