INSTALLATION INSTRUCTIONS
NOTE: Prior to installation, rotate control arm 3-5 times 360 degrees in
both the intake and exhaust directions to remove any adverse effects of
storage.
1.
Prepare the vehicle for installation. The vehicle should be in an unloaded
condition before starting installation procedures. Be certain all dump switches
are off. Park the vehicle making sure all vehicle wheels are on a hard, level surface.
Raise and properly support all auxiliary axles. Do not set the parking brakes,
instead use safety wheel chocks to secure the vehicle.
WARNING: Failure to support auxiliary axles could allow axle to drop causing
death or serious personal injury. Failure to use wheel chocks could allow vehicle to
roll resulting in death or serious personal injury.
Check to make sure there is enough room to work around and under the vehicle
where the HCV linkage is attached.
2.
Determine the location of the linkage end mounted to the vehicle's axle so that
when the linkage is connected to the control arm of HCV proper ride height can
be achieved.
3.
Install fittings in valve before mounting to vehicle if possible. Haldex recommends
fittings with pre-applied sealing compound. If they are not available use a drop of oil
or threadlocker. DO NOT use teflon tape or pipe sealing compound.
4.
Mount the Type CR HCV to the vehicle frame or a mounting bracket.
5.
a) Connect air line from air springs to the center port. (Figure 2)
b) Connect air line from the air supply to the bottom port. (Figure 2)
c) The top port is ALWAYS the exhaust port. Install the supplied exhaust fitting
to top port and slip the exhaust hose over the exhaust fitting. (Figure 2)
6.
Air up the vehicle and check all fittings for leaks.
7.
Raise the suspension by moving the control arm of the Height Control Valve up.
Either place spacer blocks between the frame and axle or jack stands between the
vehicle frame and ground. (Figure 3 and 4)
CAUTION: Spacer blocks or jack stands must be of sufficient strength to support
vehicle.
Figure 5. Single CR HCV Piping Diagram
Figure 6. Dual CR HCV Piping Diagram
INSTALLATION INSTRUCTIONS (cont'd)
NOTE: The spacer blocks or jack stands should be at a height which will allow
the vehicle to come to rest on them at the correct ride height of the suspension
With spacer blocks or jack stands in position, lower the vehicle by moving the
control arm of the valve down and deflate all air from the air springs and system.
Recheck for proper ride height.
NOTE: It may be necessary to shim spacer blocks or jack stands to achieve the
proper ride height.
8.
Once proper ride height has been achieved, move control arm on Height Control
Valve to a 45º "down" position for 10-15 seconds. Return the control arm slowly to
the center position. Then insert the wood locating pin into the adjusting block and
bracket on valve.
9.
Loosen the 1/4" adjusting lock nut on the adjusting block of Height Control Valve.
With the suspension at ride height and the HCV control arm at the center position,
install a linkage from the control arm to the pre-determined location (Step 2) for the
linkage connection to the vehicle's axle.
NOTE: If the linkage is not long enough, loosen and rotate the valve or
replace the linkage.
10. Retighten the 1/4" adjusting lock nut at the adjusting block to 24-48 in.lbs.
11. Remove the wood locating pin that was installed in Step 7. To remove the spacer
blocks or jack stands disconnect the linkage at the vehicle's axle and move the
control arm up. Then remove the spacer blocks or jack stands and reconnect the
linkage. The suspension will return to and maintain the proper ride height.
12. If proper ride height is not obtained or air springs do not inflate properly, check air
pressure, check for proper piping and/or repeat Steps 6-10. As a final check, soap
spray test all air line connections for air leaks and verify that all fasteners are tight.
If unit is still not functioning properly, contact Haldex Technical Services.
PERIODIC AIR CONTROL MAINTENANCE
Drain all moisture from air reservoir at regular intervals. Normal air system
maintenance should be practiced.
The air filter in the Haldex Pressure Protection Valve is removable and can be
cleaned or replaced, if necessary.
Part Number
Fittings Provided
90054007
1/4" Tube Compression
90054113
1/4" Tube Compression
90554183
3/8" Tube Compression
90054549
3/8" Tube Compression
90554147
1/8" NPT W/O Adaptors
90554114
Figure 7. Height Control Valve Chart
These Additional Parts Available From Haldex
Will Enable You To:
Add a suspension dump feature to your truck or trailer.
Part No.
Description
90554902 . . .Normally Closed Dump Valve for "Auto Dump" Installations
90554335 . . .Normally Open Dump Valve for Manual Dump Installations
90554615 . . .For Remote Mounted "Auto" or Manual Dump Installations
90054088 . . .For Switch To Pilot Manual Dump Valves
Upgrade your Pressure Protection Valve to include an inline filter.
Part No.
Description
90554107 . . .PPV With Inline Filter
Weigh your vehicle.
Part No.
Description
42123039 . . .SM130 Economic Pressure Gauge and Decal
42123040 . . .SM140 Robust Pressure Gauge and Decal; Mounted in a
Weatherproof Fiberglass Box
Commercial Vehicle Systems
North American Sales Division
Kansas City, MO 64153-1215
L31177 US Rev. 2/10 ART ONLY
Control Arm
None
Commercial Vehicle Systems
Haldex Limited
10707 N.W. Airworld Drive
500 Pinebush Road, Unit #1
Cambridge, ON N1T 0A5
Phone: (816) 891-2470
Phone: (519) 621-6722
Fax: (816) 880-9766
Fax: (519) 621-3924
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