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Load Cell Replacement

13

5.0

Load Cell Replacement

5.1

Replacement Procedure

1. Position jack 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. Disconnect the load cell terminal connections in the junction box. 

 

Disconnect the flex conduit from the rigid conduit at the frame. 

          

NOTE:

 Attach a pull cord to the load cell 

cable at the  junction  box before pulling the 
cable through the conduit. 

3. Pull the load cell cable out of the 

conduit.

4. Remove the two load cell bolts and lift 

out load cell and link assembly.

5. Remove 90° conduit connector and 

f l e x c a b l e .   I n s t a l l   9 0 °   c o n d u i t  
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 and torque 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.

NOTE:

 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.

5.2

End Cleanouts

End cleanouts are standard on all ATV truck scales. Simply remove the bolts and cover plate to gain access. 
Apply anti-seize compound to bolt threads prior to re-installing cover plate.

Figure 5-1. End Cleanouts with bolts and cover plate removed

Caution

As a safety precaution, always use setting blocks when jacking scale module.

Load

Cell

Load Cell Bolts

Link

Baseplate

Figure 0-1. Load Cell Replacement

Содержание SURVIVOR ATV series

Страница 1: ...ATV Portable Truck Scale Assembly Instructions 68982...

Страница 2: ......

Страница 3: ...erview and Equipment Required 10 4 2 Trimming Individual Cells 10 4 3 Trimming Paired Sections 11 4 4 Calibrating with Test Weights 11 5 0 Load Cell Replacement 13 5 1 Replacement Procedure 13 5 2 End...

Страница 4: ...ii ATV Portable Truck Scale Assembly Instructions...

Страница 5: ...ss cables at each load cell metal conduit on weighbridge for load cell cable runs flexible conduit from load cell to metal conduit conduit fittings for flexible to metal conduit polycarbonate junction...

Страница 6: ...complete wiring in approximately 1 2 hour Note these estimated times may vary 1 2 Recommended Equipment and Tools Crane maximum module weight is approximately 12 500 lbs Four chains or cables 8 minim...

Страница 7: ...al Tag The serial tag on an ATV Series portable truck scale truck scale is found at the end of the scale near the SURVIVOR logo see Figure 1 3 A duplicate tag is placed inside of the J box pocket see...

Страница 8: ...Installation 3 Set other self contained module to other end of spacer tube spacer tube is used to ensure proper distance between self contained modules for installation of bridge module This module s...

Страница 9: ...at holds the stand up see Figure 2 7 Lift stand up with chain located inside load cell pocket See Figure 2 7 Re install the bolt and hitch pin previously removed and the stand will hold in the retract...

Страница 10: ...that holds stand in retracted position see Figure 2 9 3 Jack up each corner of module until hitch pin can be re installed in shipping position 4 Install bolt connecting stand to bulkhead base see Figu...

Страница 11: ...ablish separate earth grounds for the scale These separate earth grounds do not share the same zero reference as the existing earth ground for the AC power system This difference in electrical potenti...

Страница 12: ...ach the J box ground lug to the ground lug located in the J box pocket Grounding of the J box is essential for operation of the DC transient protection incorporated into the J box 3 5 Installing Trans...

Страница 13: ...R16 R18 VR2 R19 R39 VR10 R35 R37 VR11 R27 R29 R31 R9 R11 R12 R1 R3 R5 VR5 R6 JP5 JMP NEG JMP POS VR8 VR3 VR1 VR12 VR6 J1 VR4 J2 R13 R7 EXPANSION J9 J5 ARC R46 JP4 JP3 ARGND JP14 JP15 JP13 L3 L4 L2 J8...

Страница 14: ...the indicator Power up the indicator Turn all load cell potentiometers individual and section in the J box clockwise so all signals are at full strength Refer to the J box instruction manual for prop...

Страница 15: ...s are trimmed for equal output pairs of load cells on opposite sides of the scale must be trimmed for equal sectional output This process is called section trimming 1 Park the loaded weight cart in th...

Страница 16: ...he test weight truck bags of sand or any convenient items easy to load onto the scale This total calibration weight of 25 of scale capacity 12 5 test weights 12 5 substitution weight is required by we...

Страница 17: ...all load cell and link assembly onto the baseplate Install load cell mount bolts and torque to 50 75 ft lb 7 Pull load cell cable through conduit using pull cord Make a loop in flex conduit between th...

Страница 18: ...quipment by RLWS confirms that the non conformity actually exists and was not caused by accident misuse neglect alteration improper installation improper repair or improper testing RLWS shall be the s...

Страница 19: ...ATV Portable Truck Scale Assembly Instructions 15 7 0 Assembly and Foundation Drawings Figure 7 1 70 x 11 ATV Assembly Drawing...

Страница 20: ...16 Assembly and Foundation Drawings Figure 7 2 ATV Single Module 30 Assembly Drawing...

Страница 21: ...ATV Portable Truck Scale Assembly Instructions 17 Figure 7 3 70 x 11 ATV Pier Foundation Print...

Страница 22: ...18 Assembly and Foundation Drawings Figure 7 4 30 ATV Pier Foundation Print...

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