Technical information

Weigh gauge
If by any chance a loaded hopper is
dropped onto the loadcell by accident,
causing undue shock to the gauge, this
could loosen the pointer needle which is
soldered onto its spindle.
If this happens, remove the gauge (1)
from the loadcell pipe and release the
front glass (2) by removing the six alien
screws (5).
Rotate the needle pointer (3) gently to
check if the solder connection has
become loose. If so, re-solder carefully.
To ensure correct position for re-soldering
pointer, screw the zeroing knob (4) hard
home.
Then solder the pointer (3), using a good
quality flux, in a position equal to 50 Ibs
below the zero.
Open up hole in pointer to 7/64" diameter
prior to soldering.
Make sure that surplus solder does not
run into small bearing behind the needle
pointer.
If the gauge needle pointer (3) should
oscillate unduly, first remove the back
plate by removing the six allen screws (6).
For identification purposes, the only parts
requiring adjustment for oscillation are
painted blue.
Loosen the blue locking nut (7), and turn
the hexagon-headed screw (8) in a
clockwise direction until the pointer
oscillation is reduced to a minimum.
At the same time avoid excessive
tightening of the hexagon-headed screw
(8).
A known weight should now be added to
ensure that application of the damper has
not affected weight reading.
If the reading has been affected, this will
indicate that the hexagon-headed screw
(8) has been tightened down too far, so it
should be released slightly until the
reading becomes accurate.
Remove the weights and check that the
pointer (3) returns to zero.
3.8 SERVICING