LaCoste & Romberg

MODEL G&D METER METER DETAILS
E YEPIECE
The focus of the eyepiece (ocular) is adjustable. To move the
eyepiece up or down, first loosen the knurled ring below the top of
the eyepiece. Turning counterclockwise loosens. While looking
through the eyepiece, move it up or down until a good focus is
found. Then, retighten the knurled ring to hold the eyepiece in
position.
A RRESTMENT K NOB
The arrestment knob is knurled and made of aluminum. It is held
on the shaft by two very small set screws. It is positioned very
close to the arrestment stalk to minimize the chance of dirt entering
the top of the stalk.
If something is dropped on the top of the knob, the knob may be
driven down and drag on the stalk. To repair, use a 3 ⁄32-inch Allen
tool to loosen the knob set screws, raise the knob about a tenth of
a millimeter (a few thousands of an inch) and retighten the set
screws.
If the meter is subjected to salt spray or is stored damp, enough
corrosion may develop between the knob and the stalk to cause
dragging. Repair in the same way as above.
If the knob is very hard to turn and is not dragging on the stalk, the
problem is more serious. The bearings or seals in the stalk may
require servicing at L and R .
INSTRUCTION MANUAL 3-2001 4 - 3