Rice Lake SURVIVOR OTR Steel Deck - Manual (Page 34)

30 OTR Truck Scale Assembly Instructions
9.0 Load Cell Replacement
Use the following steps to replace load cells in the OTR truck scale:
1. Position jack on the concrete foundation beneath one of the weighbridge’s main frame members close to
the load cell mount. (Allow room for load cell removal and installation.) Raise jack approximately 1/2"
and put setting block(s) under the scale deck.
2.
Figure 9-1. Load Cell Mount
As a safety precaution, always use setting blocks when jacking scale module.
3. Disconnect the load cell terminal connections in the junction box. Disconnect the flex conduit from the
rigid conduit at the frame. Pull the load cell cable out of the conduit.
Attach a pull cord to the load cell cable at the junction box before pulling the cable through the conduit .
4. Remove the two load cell bolts and lift out load cell and link assembly.
5. Remove LB connector and flexcable. Install LB connector and flex conduit on new load cell in the same
position as was removed.
6. Install link over new load cell. Reinstall load cell and link assembly onto the baseplate. Install load cell
mount bolts. Torque bolts to 50 – 75 ft-lb.
7. Pull load cell cable through conduit using pull cord. Make a loop in flex conduit between the load cell and
the rigid conduit. Reconnect flex conduit to rigid conduit.
8. Remove setting blocks and lower scale module so that it rests on the link. Check link to verify that it is
centered and plum.
9. Connect wiring to terminals in junction box.
RLWS has 1/4" (PN 67293), 1/8" (PN 67294) and 1/16" (PN 67291) shims available to level scale. Do not exceed
over 3/4" of shims combined. If more is necessary contact RLWS for other options.
Load Cell Bolts
Baseplate
Link
Load Cell
90 ° Conduit
Connector
Load Plate
Shim
Upper Mount
Block
Grout
(optional)
Anchor
Bolt
Note
Note
Note