Right Weigh 310-PP SERIES Exterior Analog Onboard Load Scale Instruction Manual
- June 3, 2024
- Right Weigh
Table of Contents
INSTALLATION & OPERATION MANUAL
ONBOARD LOAD SCALE
EXTERIOR ANALOG | 310-PP SERIES
310-PP SERIES Exterior Analog Onboard Load Scale
WELCOME
Thank you for choosing to drive more and scale less! Here at Right Weigh,
we are committed to making our products simple to install and easy to use. If
your vehicle configuration is not described in this manual, our technical
support team is ready to answer your questions!
503-628-0838
888-818-2058 – Toll Free (USA ONLY)
+61 418 622840 – Australia & New Zealand
support@rwls.com
leigh@rwlsau.com.au – Australia & New Zealand
www.rwls.com/how-to-calibrate-install/
rightweigh.com.au – Australia & New Zealand
IMPORTANT!
Please read instructions COMPLETELY and thoroughly before installation.
Right Weigh, Inc. is not responsible or liable for product failure or vehicle
damage due to improper installation. The installation requirements are
outlined in this manual and should be followed thoroughly to avoid inaccuracy
or damage to the product.
It is also important to be aware of vehicle manufacturer policies before
making modifications to the vehicle. Right Weigh, Inc. is not liable or
responsible for issues regarding warranties with other manufacturers. This is
the responsibility of the customer. If you are unsure about how these
installation practices apply to your vehicle, please contact your vehicle or
component manufacturer.
PARTS REQUIRED
These parts are included in the 310-RK (Retail Kit) products and are sold separately in the 101-SK kit:
| Street Tee Fitting The thread size and type should match the thread size and
type of the vehicle suspension
---|---
| Male NPT Tube for 1/4” Air Line The thread size and type should match the
thread size and type of the vehicle suspension
| Male Elbow Tube Fitting for 1/4” Air Line Tubing size to match the male
straight air line fitting. 1/4“ NPT to match the thread size of the fitting at
the bottom of the load scale
| 1/4” Air Line The amount of air line needed depends on the mounting location
of the gauge
SPECIFICATIONS & OVERVIEW
Technical Specifications
Operating/Storage Temperature: -40° F to +185° F (-40° C to +85° C)
Enclosure: Black Polypropylene
Gauge Size: 3.5”
The 310-PP series is designed for use on an axle group with a single height
control valve suspension system.
Within this series, there are different products designed for different axle
group configurations. Before installation, make sure you have the proper gauge
for your application:
| Suspension | 310-30-PP | 310-16KG-PP |
|---|---|---|
| Single Axle | Gauge – Pounds (LBS) | 310-25KG-PP |
| Tandem Axle | 310-54-PP |
*310-HKANT40K-PP
**310-54-RK| Gauge – Kilograms (KGS)
Tri Axle| 310-80-PP| 310-30KG-PP
*For use with Hendrickson VANTRAAX HKANT 40K or ULTRAA-K UTKNT 40K air suspension only
**Packaged kit including air line installation components
If you have the wrong gauge for your application, please call our technical
support listed on page 2.
INSTALLATION
The 310 Series gauge comes in a protective box with a mounting bracket and
hardware. The following steps will walk you through how to correctly mount and
install the scale. Be sure to choose a location that is easily accessible and
safe from potential damage (forklift posts, tire caps, etc.)
**** DO NOT mount the scale directly to the chassis or
any other main beam unless it is approved by the vehicle manufacturer. Doing
so may void the warranty with the vehicle manufacturer.
-
MOUNT SCALE
Choose a location to mount the scale that is easily accessible and safe from potential damage (forklift posts, tire caps, etc.). Mount the bracket in the chosen location using two bolts to secure it. Install the gauge box to the bracket using supplied hardware.
Make sure to use BOTH supplied mounting bolts to secure the bracket to the vehicle. Using only one bolt can result in a cracked bracket and the scale falling off the vehicle.
-
DUMP AIR FROM SUSPENSION SYSTEM
-
TEE INTO AIR SUSPENSION
Remove the suspension air line fitting from the top of one of the air bags. Insert a street tee fitting into the top of the air bag that matches the thread size of the vehicle uspension. Reinstall the suspension air line and fitting into the street tee. For more information on the parts needed for air line installation, see page 4.
-
INSTALL NEW 1/4” AIR LINE & FITTING
Install a new 1/4” air line and fitting into the remaining port on the tee. -
ROUTE AIR LINE TO GAUGE
Route the new 1/4” air line from the tee fitting assembly to the gauge. Secure air line with zip ties. Install male elbow tube fitting onto the bottom of the gauge. Insert the air line into the fitting and tighten the tube nut securely. -
AIR UP SUSPENSION SYSTEM
Check for leaks and that all fitting connections are secure.
Pull red push/pull valve to check that air pressure is getting to the gauge.
CALIBRATION
- The vehicle must be fully loaded. For best results, calibrate with a loaded weight within 1500lbs or 750kgs of your typical axle group weight (DO NOT calibrate empty!)
- Using a certified in-ground scale, obtain a loaded weight for the axle group attached to the gauge.
- Park on a level surface. Shift the transmission to neutral and set the parking brakes.
- Chock the wheels to prevent unexpected vehicle movement.
- Release the parking brakes.
- Make sure the Height Control Valve (HCV) has fully inflated the air bags. If needed, briefly dump the air from the suspension and allow the HCV to refill the system.
- Pull the red push/pull valve so that it is in the fully open position.
- Using a flathead screwdriver, turn the calibration screw on the dial face until the gauge matches the certified axle group weight.
OPERATE & WEIGH
- Park on a level surface. Shift the transmission to neutral and set the parking brakes.
- Chock the wheels to prevent unexpected vehicle movement. Release the parking brakes.
- Make sure the Height Control Valve (HCV) has fully inflated the air bags. If needed, briefly dump the air from the suspension and allow the HCV to refill the system.
- Pull the red push/pull valve so that it is in the fully open position. View the load scale to determine the on-the-ground axle group weight.
- Push the push/pull valve so that it is in the full closed position.
TROUBLESHOOT A PROBLEM
| PROBLEM | CAUSE | SOLUTION |
|---|
Erratic / Inaccurate
Weight Readings| The vehicle is not parked on a
level surface| Park on level concrete ground. Parking on sloped or banked
surfaces will cause the ehicle weight distribution to shift between the axle
groups.Additionally, if one or more of the vehicle’s wheels are in a pothole,
that could result in additional pressure or torque on the suspension air bags.
This will cause the suspension to have a different air pressure than what is
normally needed to hold up the given weight.
The vehicle’s brakes are on| Release the parking brakes when weighing and/or
calibrating. When the vehicle brakes are set, they could apply additional
pressure or torque on the suspension air bags. This will cause the suspension
to have a different air pressure than what is normally needed to hold up the
given weight.
There is a significant air leak in
the suspension system| Check air lines for leaks. Having a leak 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 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.
WARRANTY & RETURN POLICY
Right Weigh is committed to providing quality products that function as
intended, and we always stand behind our workmanship. Our industry leading
warranty is our best effort to express this commitment. Products manufactured
or sold by Right Weigh, Inc. are warrantied to be free from significant defects
in material and workmanship 3 years from date of purchase. During this time,
and within the boundaries set forth in this warranty statement, Right Weigh,
Inc. will, at its sole discretion, correct the product problem or replace the
product.
This warranty shall not apply to product problems resulting from:
- Improper application, installation, incorrect wiring, or operation outside of the approved specifications of the product.
- Accidents, faulty suspension parts or power surges
- Inadequate maintenance or preparation by the buyer or user
- Abuse, misuse, or unauthorized modification.
- Acts of God, lightning strike, floods, fire, earthquake, etc. Right Weigh, Inc. assumes no responsibility or liability for any loss or damages resulting from use of Right Weigh, Inc. products.
In no event shall Right Weigh, Inc. be liable for direct, indirect, special,
incidental or consequential damages (including loss of profits or loss of
time)resulting from the performance of a Right Weigh, Inc. product. In all
cases, Right Weigh, Inc. liability will be limited to the original cost of the
product in question. Right Weigh, Inc. reserves the right to make improvements
in design, construction, and appearance of products without notice
Return Policy and Authorization
Before returning any product, please obtain a Return Merchandise Authorization
number (RMA#) by calling Customer Service at
503-628-0838 or
e-mailing support@rwls.com. Include the RMA# and
information regarding the reason for the return with the returned product.
Shipping costs for returns must be prepaid by the customer. For your
protection, items must be carefully packed to prevent damage in shipment and
insured against possible damage or loss. Right Weigh, Inc. will not be
responsible for damage resulting from careless or insufficient packing or loss
in transit. An RMA# must be obtained by the original purchaser before any
product can be returned. Only new, unused products may be returned. Installed,
used, damaged, modified or customized products can not be returned for credit.
Credit will be issued to the original purchaser after evaluation by Right
Weigh, Inc.
Repairs/Replacements
An RMA# must be obtained before any product can be returned. Right Weigh, Inc.
will evaluate returned products at no charge. If Right Weigh, Inc. determines
that the returned product is under warranty it will repair the product or
parts thereof at no charge, or if unrepairable, replace it with the same or
functionally equivalent product whenever possible. Right Weigh, Inc. will
return the product at its expense via a shipping method (carrier to be at sole
discretion of Right Weigh, Inc.) equal to or faster than the method used by
the customer. Products or parts thereof not covered by warranty will be
repaired or replaced at customer expense upon authorization by the customer.
Right Weigh, Inc. will return the repaired product at customer expense via a
shipping method (carrier to be at sole discretion of Right Weigh, Inc.) equal
to or faster than the method used by the customer.
THANK YOU FOR YOUR BUSINESS GRACIAS POR HACER NEGOCIOS
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PP-003-0000 Revision I
June 2022