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Maintenance and Repair
TrueBlend
™
128
Edition: February 2007
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Place a small amount of removable strength Loc-tite onto the two screws (item
2) and re-install the load cell and weigh bin mounting bracket back on the load
cell mount (item 7). Make sure that the load cell (item 4) is mounted square
with the load cell mount (item 7) and tighten the two screws (item 2) to a value
of 10 Nm.
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Items number five and six are used as a stop for the load cell (item 4) to pre-
vent damage if over weighting occurs. If this bolt was not loosened during re-
moval or installation of load cell this should not need adjusted. If the bolt is
loosened during the process the gap needs to be re-set so the load cell (item
4) contacts the bolt (item 5) when the weigh bin is loaded with 3 kg total weight.
A .020” feeler gage could be used to set the gap without loading the cell.
Assemble in reverse order.
[1] Bracket for
weigh bin
[2] Screws
[3] Screws
[4] Load cell
[5] Stop screw
[6] Lock nut
[7] Load cell
mounting bracket
Fig. 19: Removing load cell
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To complete the installation of the load cell it is necessary after installation to
pre-stress the load cells. Place a 3 kg weight into the load cell for ten seconds
and then remove it. Repeat this procedure three times.
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Re-route and install the wiring from the load cell to the appropriate location in
the control box.
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Do an empty and full calibration (see manual) and operate as normal.
Summary of Contents for TrueBlend TB500-4
Page 2: ......
Page 138: ...Appendix TrueBlend 136 Edition February 2007 11 1 2 Menu overview dosing unit...
Page 139: ...TrueBlend Appendix Edition February 2007 137 11 1 3 Menu overview conveying Optional...
Page 140: ...Appendix TrueBlend 138 Edition February 2007 11 1 4 System settings menu...
Page 141: ...TrueBlend Appendix Edition February 2007 139 11 1 5 Unit settings menu...
Page 142: ...Appendix TrueBlend 140 Edition February 2007 11 1 6 Conveyor settings menu...