Technical information

Setting up weigh mechanism
Assuming the loadcell and gauge are
completely accurate, the following checks
should now be made.
Obvious faults such as grout and fine
aggregates around mechanism and base
of hopper should already have been
checked before investigating the finer
points.
Check that when hopper is in the down
position, the jib struts are clear of the
horizontal hopper bars on either side and
do not foul the welded washers (25).
When the loadcell striker is resting on the
loadcell, check that the loadcell striker
guide (26) does not touch either side of its
housing (27). Look from inside of engine
compartment to check this.
If it does, slacken off hex nuts at either
end of the link shaft and correct by moving
hopper over away from offending side.
Retighten hex nuts and check clearance
again after raising and lowering hopper
several times.
Check that loadcell striker guide (26)
rotates freely. If it does not, it may be
simply due to lack of lubrication. If so,
lubricate loadcell striker guide pin (28)
through grease nipple provided.
If loadcell striker guide (26) still does not
rotate freely, inspect needle roller
bearings (29) and seals, and replace if
necessary.
Check loadcell striker (30) has not
developed flat spots where it hits the
loadcell striker guide (26), as this may
cause inaccurate batch weighing. If this
has happened, turn loadcell striker (30)
around 180 degrees and use on
undamaged side or replace.
SERVICING 3.13