Rice Lake CLS-M Troubleshooting Manual

CLS-M Forklift Scale
Troubleshooting guide
PN 126179
Symptom
Scale displaying negative
weight
Scale reading high against test
weight.
Scale reading low against test
weight.
July 22, 2013
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,
J-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
J-box error
Load cell errors
Calibration is required
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 j-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 j-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.
TM
156793