Normally Open or Normally Closed Dump Valve
For Type CR (Controlled Response) Height Control Valve
Exhaust
Seal*
Pilot Port
(1/8 NPT) **
Dump Exhaust Port
(both sides under
exhaust seal)
Notes:
*
Green Seal indicates Normally Open Dump (Part #90554335)
Black Seal indicates Normally Closed Dump (Part #90554902)
** 45 PSI needed at pilot port to activate Dump Valve. Can be
used on all Haldex Controlled Response Valves.
Installation Instructions
1. Make sure the dump valve and center port of the HCV
are free of dirt and debris.
2. Lubricate the 1/8 NPT male threads on the dump valve
with a drop of threadlocker or oil. Do not use pipe
tape or pipe compound.
IMPORTANT: Valve may malfunction if the
threadlocker or oil drips into the HCV or the
dump valve.
3. Screw the dump valve into the center port of the
HCV until hand tight.
INSTALLATION INSTRUCTIONS
Control Arm
Screws into
Air Spring
Height Control
Port
Valve (1/8 NPT)
Center Port
Commercial Vehicle Systems
North American Sales Division
10707 N.W. Airworld Drive
Kansas City, MO 64153-1215
Phone: (816) 891-2470
Fax: (816) 880-9766
Rev. 1/03 ART ONLY L31182 (94100539)
Installation Instructions (continued)
4. Using a 5/8'' wrench, tighten the dump valve one
complete turn until the air spring port is directly opposite
the control arm of the HCV.
5. Use Vibraseal fitting or lubricate with threadlocker.
Do not use pipe tape or pipe compound.
6. Torque fittings to 5 to 10 ft. lbs.
IMPORTANT: Do not exceed the torque
specifications on the dump valve or fittings.
Exceeding the torque specifications may result in a
cracked valve or a stripped fitting.
Commercial Vehicle Systems
Guelph, Ontario CANADA N1G 3W6
L31182
94100539
Rev. 1/03
Haldex Limited
525 Southgate Drive, Unit 1
Phone: (519) 826-7723
Fax: (519) 826-9497