L31193
(94100121)
Rev. 8/03
Hand Control Valve
Part Number: 90054082
Rev. 8/03 WEB ONLY L31193W (94100121)
North American Sales Division
Haldex Limited
525 Southgate Drive, Unit 1
Guelph, Ontario Canada N1G 3W6
Phone: 519-826-7723
Fax: 519-826-9497
North American Sales Division
Haldex Brake Products Corporation
10707 NW Airworld Drive
Kansas City, MO 64153-1215
Phone: 816-891-2470
Fax: 816-880-9766
Commercial Vehicle Systems
www.haldex.com · www.hbsna.com
Adjustment Instructions
Maximum Pressure
(Range 35 PSI to 85 PSI)
Loosen lower acorn nut and adjust until desired
maximum pressure setting is achieved, then tighten
acorn nut securely.
Minimum Pressure
(Range 0 PSI to 30 PSI)
Loosen upper acorn nut and adjust until desired
minimum pressure setting is achieved, then tighten
acorn nut securely.
DO NOT OPERATE UNIT WITHOUT AIR -
3 PSI Minimum.
Maximum
Adjustment
Nut
Minimum
Adjustment
Nut
90°
Total
Movement
Air Piping
DO NOT PRESSURIZE EXHAUST PORT
Care should be taken to assure air lines are
piped to proper hand valve ports. Air pressure
injected into the exhaust port will unseat an
internal “U” type seal causing leakage and
malfunction of valve. Valve must be
disassembled to reseat seal.
Note: ALL PORTS 1/4”-18 NPT.
Inlet
Cylinder
Exhaust
Hand Valve Handle Tension
Adjustment
1. Remove valve handle by turning
out handle bolt.
2. Using allen wrench, tighten (3) allen
head set screws equal amounts until
desired tension is obtained.
3. Replace valve handle and tighten
handle bolt securely.
Friction
Disc
Allen Head
Set Screws
Handle
Handle
Bolt
