Troubleshooting Table - Rice Lake CLS-M Installation & Service Manual

CLS-M Installation/Service Manual
9.2

Troubleshooting Table

Symptom
Scale displaying negative weight
Scale reading high against test weight.
Scale reading low against test weight.
Scale not returning to zero (0)
Will not display small weight values
Unstable weight
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Possible Cause
Forks are resting (even slightly) on the floor
Material, like wood debris, between the scale and the
forklift carriage
Material (like wood debris), between the front and back
scale plates
Centering pin touching the forklift carriage, causing it to
teeter back and forth
Bottom cleats not adjusted properly or loose
If all these steps do not resolve your issue, check the following:
Junction box error
Load cell errors
Calibration is required
Zero key has been pressed with a negative weight
reading, while forks are on the floor
Material, like wood debris, between the scale and the
forklift carriage
Material, like wood debris, between the front and back
scale plates
Centering pin touching the forklift carriage, causing it to
teeter back and forth
Bottom cleats not adjusted properly or loose
If all these steps do not resolve your issue, check the following:
Junction box error
Load cell errors
Calibration is required
Forks are touching the ground.
Material, like wood debris, between the scale and the
forklift carriage.
Material, like wood debris, between the front and back
scale plates
Centering pin touching the forklift carriage, causing it to
teeter back and forth
Bottom cleats not adjusted properly or loose
Scale is in motion, it won't zero if the forklift is moving:
Forks moving up and down
Forklift is being driven
If all these steps do not resolve your issue, check the following:
Junction box error
Load cell errors
Digital filter sensitivity is too high
Power connections faulty, low battery
Table 9-9. Troubleshooting Symptoms
Action
Lift forks up off floor
Remove debris
Remove debris
Adjust scale carriage, centering pin should not touch
on sides and bottom
Adjust to proper gap using jam nuts, 0.02"
Open junction box and look for obvious damage
Test mV/v levels, at 1.5 mV per 1,000 lb, test at 350
ohms
Calibrate the scale using Revolution
Lift forks off ground, press the Zero key
Remove debris
Remove debris
Adjust scale carriage, centering pin should not touch
on sides and bottom
Adjust to proper gap using jam nuts, 0.02"
Open junction box and look for obvious damage
Test mV/v levels, at 1.5 mV per 1,000 lb, test at 350
ohms
Calibrate the scale using Revolution
Lift forks off ground, press the Zero key
Remove debris
Remove debris
Adjust scale carriage, centering pin should not touch
on sides and bottom
Adjust to proper gap using jam nuts, 0.02"
Bring forklift to a complete stop and ensure forks are
still
Open junction box and look for obvious damage
Test mV/v levels, at 1.5 mV per 1,000 lb, test at 350
ohms
Using Revolution:
Scales menu/scales #1/filtering
Change the digital filtering sensitivity to light and
Change digital filter threshold to 10
Check battery power cable
Check for low battery voltage
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