Rice Lake CLS-M2 Troubleshooting Manual

CLS-M2 Forklift Scale

Troubleshooting guide

PN 151718
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. Adjust to proper gap using jam nuts, 0.02"
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. Adjust to proper gap using jam nuts, 0.02"
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.
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.
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
156791