TROUBLESHOOTING
9
ERRATIC / INACCURATE READINGS
Below is a list of problems we have seen with a simple fix. If you don’t see
your problem listed here or our troubleshooting doesn’t fix your problem,
call Right Weigh Tech Support listed on page 2 for further assistance!
PROBLEM WITH THE GAUGE?
The vehicle is not parked on a level surface:
Parking on sloped or banked surfaces will cause the vehicle weight
distribution to shift between the axle groups.
There is a significant air leak in the suspension system:
This could cause the HCV to refill the suspension at regular intervals to
maintain the vehicle’s ride height. If there is a significant leak, the gauge
display will slowly decrease in value and then quickly increase in value when
the HCV refills the suspension system.
The vehicle’s brakes are on:
When the vehicle brakes are set, they could apply additional pressure or
torque on the suspension airbags. This will cause the suspension to have a
different air pressure than what is actually needed to hold up the given
weight.
The vehicle is parked on an uneven or rough surface:
If one or more of the vehicle’s wheels are in a pothole, that could result in
additional pressure or torque on the suspension airbags. This will cause the
suspension to have a different air pressure than what is actually needed to
hold up the given weight.
The Height Control Valve (HCV) is malfunctioning or broken:
If the HCV is not functioning correctly, the air pressure applied to the
suspension system could be inconsistent and/or erratic. To test for an HCV
problem, acquire a weight reading from the Right Weigh gauge and write it
down (refer to gauge operating instructions for proper procedure). Drive the
vehicle around the block and return to the same location. Acquire a second
reading from the Right Weigh gauge. If the two readings are significantly
different, then the HCV might be malfunctioning.
