Forklift Flexure Troubleshooting - 28" And 34" Models - Rice Lake CLS-M Installation & Service Manual

CLS-M Installation/Service Manual
27. Use the special modified box wrench to tighten the jam nut (#13) on the lower block
28. Remove the flat-bladed screwdriver as used in
center of the hole
29. Install the spherical washer set (#3) and hex nut (#2) on the top of the upper block
30. Connect the load cell cable to the junction box at this time
31. Torque the hex nut (#2) on the upper mounting block until you see 100 lb on the weight display; tighten the lower hex
nut (#6) below the upper mounting block using the modified box wrench and try to get the display as close to zero as
possible
32. Torque the top hex nut (#1) with a torque wrench to 110 ft-lb; use a pry bar or chisel to ensure the load cell stays
centered while tightening and doesn't touch the sides of front or back plate
33. Install the final hex nut on the top mounting plate and torque to 110 ft-lb; use a pry bar or chisel to keep the load cell
centered
34. Tighten the jam nut on the lower mounting block assembly
35. Exercise the scale, heel to toe, by placing a weight (1000 lb) on the heel, then the toe to check if the assembly was
installed correctly; repeat for both sides, and if the weight is off, check assemblies
36. Place a weight in the center of the fork and check side to side values
37. Calibrate the load cells (See
6.3

Forklift Flexure Troubleshooting - 28" and 34" Models

This section refers to Rice Lake PN 92828.
The forklift flexure is designed to protect the load cell from damage in the forklift environment.
Use the following steps if the forklift scale is out of tolerance or unable to return to zero on a consistent basis.
1. Check for debris within the scale or between the scale carriage.
2. Check for proper spacing of the jam nuts at 0.02".
3. Check the dimensions of the flexure for damage; there should be a +/-0.03" tolerance to the drawing shown below for
height and width.
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Step 25 and inspect the flexure rod; the flexure rod needs to be in the
Section 5.0 on page 38)
4X .25
3.00
4.12
Figure 6-14. Flexure Chassis