V-TEK Royce DE35-ST, User Manual

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124 D292469I
Insertion of new needle(s) and planarization
4. Each needle has a set screw that secures it
in the brass piston. Loosen the set screw
that corresponds to the needle requiring
replacement. Remove the needle and
replace with the new needle. Tighten the
set screw with the needle slightly lower
than the other needles.
5. Place the piston into the aluminum collar from the Planarization kit with the new
needle close to the opening. Gently place the piston and collar onto the mirror.
Notes:
Using a ‘C” ring (collar) and a mirror, all needles must be set planer to top
surface of eject cap and all needles must be planer to within 0.001”. If blunter NSC
center needle is used, it should be set 0.002” – 0.003” lower that other needles.
6. Loosen the set screw holding the new needle and
gently
tap the new needle
down until it touches the surface of the mirror. Inspect that all needles are
evenly touching the mirror’s surface and secure needle in place using set screw.
If setting NSC center needle, use a
2 – 3 mil (0.002” – 0.003”) shim to
set the center needle height