Section 3: Installation
03/13 8 51003 –Rev 3
NOTE
: Check that the weighing platform "floats" on the levers' pivots and bearings
and does not bind or set to one side. The platform should return to a centered
position if moved to any position then released.
o. Unlock the beam lock loop to allow the beam to balance.
p. The beam should move up and down freely coming to rest in the center of
the trig lock opening. Balance the beam by adjusting the balance ball at the
butt end of the beam, using a screwdriver.
Turning the screw CW will RAISE the beam
Turning the screw CCW will LOWER the beam.
q. If the beam will not balance using the balance ball:
Check that the poise is at "0" and the poise screw is snug.
Check that the platform is “free and floating.”
Check that the beam load rod is connected properly on BOTH ends.
Check that there is nothing under the platform inhibiting the levers (floor
debris).
Check that the counterpoise hanger, without any weights, is on the tip
loop.
Check that the beam is hanging from the middle loop.
Check that the beam lock is “open”
Apply a slight pressure to the scale platform and see if the beam tip rises.
If "YES" continue on to balance, if "NO" recheck mechanical assembly.
If the scale beam still does not balance, do the following:
Use a screwdriver to “center”the balance ball at the butt end of the
beam.
If the beam is "UP" apply small amounts of weight (BBs) to the top
of the counterpoise.
If the beam is "LOW" remove the counterpoise hanger, loosen the
hanger rod by turning and holding the bottom nut, and remove a
small amount of lead shot.
Add or remove small amounts of weight until beam balances.
Secure the counterpoise hanger with "added" or "removed" weight.
