AIR SUSPENSIONS AND HWH - HWH Corporation

More documents

Recommendations

Info

3-7.4 Tag dump/lift schematics. The following schematics are the three main tag dump or tag liftarrangements. The valves are shown in the tag dump or lift mode. When the tag control switch is in the offor travel position, the valves will be in the travel mode or a leveling mode. The travel and leveling modevalve positions are shown in 3-7.1 thru 3-7.3. Some tag axle systems that use a standard tag axle manifoldand a tag lift have a wire in the <strong>HWH</strong> harness to control the tag lift mechanism.System with standard tag axle manifoldTag dump onlyWith this system, the front and drive axle manifold valves are in the normal travel position, the travelvalves are open with the other valves closed. On the tag axle manifold, the travel valves are closed andboth lower valves are open. This exhausts the tag axle air bags. This is a tag dump; a tag lift system cannow be used if so equipped.Page 30 – 22JUL09
System with tag lift manifoldWith tag enable valvesSystem with standard tag axle manifoldWith tag lift valvesBoth of these manifolds are equipped with tag lift valves. In the tag lift mode, the travel valves (or tagenable valves) are off. This isolates the tag axle air bags. The lower (tag dump) valves are open to exhaustthe tag axle air bags. The tag lift valve is open. This supplies air to the tag lift mechanism.In the travel mode, the travel valves (tag enable valves) are open so the tag axle air bags are inflated. Thetag lift dump valve is open to exhaust air from the tag lift mechanism. The tag lift dump valve is open anytime the travel (tag enable) valves are on.Page 31 – 22JUL09
Page 1 and 2: AIR SUSPENSIONS AND HWH ®1. PREFAC
Page 3 and 4: 2-2.2 Air dump operation. Except fo
Page 5 and 6: TYPICAL PILOT AIR DUMP SYSTEMPilot
Page 9 and 10: 7.) 625 automatic leveling system.
Page 11 and 12: 3-2 Components of a basic air level
Page 14 and 15: The basic air manifold has a left s
Page 16 and 17: If either rear air bag pressure swi
Page 18 and 19: 3-2.4 The auxiliary air compressor.
Page 20 and 21: 3-3 System plumbing. Although there
Page 22 and 23: 3-5 The five basic “modes” of t
Page 24 and 25: 3-5.3.2 Automatic leveling. There h
Page 26 and 27: 3-5.5 Excess slope. Excess slope ha
Page 28 and 29: 3-7.2 Leveling raise mode schematic
Page 32 and 33: 3-8 Schematic representations of th
Page 34 and 35: The port for HWH air leveling manif
Page 36 and 37: For the discussion at this time we

AIR SUSPENSIONS AND HWH - HWH Corporation

Create successful ePaper yourself

Delete template?

Save as template?