TM 5-6675-323-14
b. Mount tracer arm extension assembly.
(1) Remove desired lengths of tracer arm extension from case.
CAUTION
D o not release hold on planimeter when tracer arm is removed. Planimeter
w i l l t u r n o n i t s s i d e . D a m a g e to planimeter disk may occur.
(2) Loosen two thumbscrews at back of tracer arm.
(3) Hold tracer arm with one hand. With other hand, slide tracer arm out of
planimeter base.
(4) While still holding planimeter, slide one end of extension arm into
t r a c e r a r m s l o t o n p l a n i m e t e r b a s e . M o v e extension arm until groove in end lines up
with view hole in tracer arm slot.
NOTE
D i f f e r e n t tracer arm lengths with same tracer arm can be obtained by
l o o s e n i n g two thumbscrews and sliding tracer arm in and out of its
Tracer arm lengths should be premarked short, medium, or long.
slot.
If any other tracer arm length is desired, planimeter must be realined.
(5) Tighten two thumbscrews to
secure
tracer
arm
extension.
Be
sure
lens
tracing assembly is flat on table surface.
(6) Readjust encoder and remote tracer switch wires through antenna.
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