Air Weigh QuickLoad User manual
1
PN 901-0144-002 R0
Air-Weigh Customer Support: 888-459-3247
QuickLoad
Installation Guide
Mack Camelback Suspensions
Welded Drive Brackets
2
Table of Contents
Scale Overview.................................................................................1
Overview: Sensor Installation......................................................1
Tools Required.................................................................................2
Installing the Sensor Bracket on the Camelback Suspension...3
Preparing the Camelback Suspension......................................3
Welding the Bracket......................................................................4
Adding a Protective Spray Paint Coating..................................5
Installing the Display and Cables..................................................6
Routing the Sensor Extension Cable.........................................6
Preparing the Cab Display for Installation.................................7
Installing the Cab Display.............................................................7
Securing Cables and Reassembling the Dash........................9
Setting the Sensor A/D Values.................................................10
Assembling the Electrical Connector.......................................10
Adjusting the A/D Reading.........................................................11
Final Sensor Torque....................................................................12
Cover Installation...........................................................................13
Notes................................................................................................15
Limited Warranty............................................................................16
Procedure for Warranty Claims....................................................17
1
Scale Overview
The Air-Weigh QuickLoad Scale for vocational vehicles with the
Mack Camelback suspension includes a dashboard-mounted
mounting hardware for the Camelback suspension, and sensor
cables.
This Installation Guide provides all the instructions needed to install
Follow the installing procedures in this guide exactly for the most
accurate weighing.
The User Guide, included with the scale kit, provides the complete
scale calibration and operation procedures.
Overview: Sensor Installation
The following overview steps are to be applied to the Camelback
Suspension Sensor Installation:
• Mark the center of the trunnion tube.
• Mount bracket assembly on the trunnion tube.
• Connect the cables
•
it to the QuickLoad Scale Sensor Port A.
• Mount the sensor to the bracket.
• Check for sensor readings in range.
• Mount the cover over the sensor and brackets.
2
Tools Required
The list below contains the tools (customer supplied) to properly
• Sander/grinder
• 40-grit medium sandpaper
• Chalk or permanent marker
• 22mm combination wrench
• Torque wrench, 20 – 120 ft-lb
• 22mm socket and 3/8-inch socket handle
• Enamel spray paint
• Tape measure
• C clamps
• ARC or MIG welder
•
Note: Heavy calibration must be done using maximum vehicle
loads. See QuickLoad Calibrations and Operations manual, for
additional information on calibration.
Cables to the sensor, and any other Air-Weigh wiring, must be
separated by a minimum of 12 inches, or properly shielded, from
exhaust piping.
Do not move vehicle until the alignment tool is removed.
Do not calibrate sensor following installation until the vehicle has
been in operation for one week or 800 miles, whichever comes
3
Installing the Sensor Bracket on the
Camelback Suspension
Preparing the Camelback Suspension
Sanding the Trunnion Tube
Marking Center of Trunnion Tube
2. Using chalk or permanent marker, mark the top of the
trunnion tube 3-3/8 in. (85.725mm) on both sides of the
center mark. The overall measurement is 6-3/4 in. (171.45
mm).
3. Using a grinder or 40-grit medium sandpaper, sand the
marked off area until it is free of paint and other residues.
4. Clean the sanded area.
5. Re-mark the center of the trunnion tube.
4
Welding the Bracket
1. Place the mounting bracket assembly on the top center of
the trunnion tube. Mark the center on the alignment tool and
ensure it lines up with the center mark on the trunnion tube.
2. Use C clamps to hold the bracket in place. Make sure you
leave the alignment tool in the bracket assembly while
welding.
Placing the Brackets on the Trunnion Tube
3. Tack weld all 8 corners of the base of the bracket.
4. Fillet weld a full bead on the edges of each bracket piece.
5. Allow the weld and the bracket to completely cool.
Alignment Tool
5
Adding a Protective Spray Paint Coating
1. To prevent the drive axle bracket from delaminating due to
corrosion, we recommend you spray paint around the base of
the brackets.
2. Using any enamel-based spray paint, paint around the
base of the bracket. Paint all bare metal around the bracket
completely.
3. Once the paint is dry, we recommend that you paint all
exposed metal a second time.
Spray Painting the Bracket
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Installing the Display and Cables
Routing the Sensor Extension Cable
1. Starting from where you mounted the bracket, route the drive
axle extension cable along the axle and the frame, and then
display on the dash. If possible, route along an existing wire
harness. Be careful to avoid routing along pieces of the
frame that may move or cause wiring to rub.
2. The drive axle sensor extension cable will be connected to
Sensor Port A on the back of the QuickLoad display once the
display is installed.
3. Coil and secure the drive axle extension cable approximately
every foot along the frame of the truck using zip ties. Leave
the ties loosely attached, as you will tighten them later in the
install process.
Note: Keep all cables a minimum of 12” from exhaust piping or
properly shield cables.
Drive Axle Connections
7
Preparing the Cab Display for Installation
The Optional Universal Mounting Pod can be used for installations
where there is no space in the dash to mount the scale display.
1. Select a location for the display (1) on the dash panel (5) with
at least 3” of clearance behind the dash panel (5) for the unit
and its connections. A higher dash position provides better
visibility.
2. Using a hole saw, cut a 2-1/8” hole (2) in the dash where you
will mount the display.
3. Remove the hex nuts (4) from the studs (6) on the back of the
display (1) to release the mounting bracket (3).
Installing the Cab Display
1. Position the display (1) in the hole so that it appears level on
the dash.
2. Reinstall the mounting bracket (3) on the back of the display
(1) and secure with two nuts (4) on the display studs (6).
Tighten the nuts (4) and secure the display (1) to the dash
using 6 in-lbs. of torque. Do not over- tighten the mounting
bracket nuts (4).
3. Connect the drive axle extension cable to the display in the
dash to Port A.
Display Preparation and Installation
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extending toward the side of the vehicle where you routed the
on the sensor should face up.
Inserting the Sensor
3. Slide the bolt through the bracket holes so that the bolthead
is secured in the manufactured bolthead holder.
Inserting Bolt and Washers into Sensor and Bracket
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