HWH Corporation
(On I-80, Exit 267 South)
2096 Moscow Road
Moscow, Iowa 52760

Phone: (563)724-3396 or (800)321-3494
Fax: (563)724-3408

Business Hours: 8 a.m. - 5 p.m. Central Time (M-F)

The World's Largest Manufacturer
of RV Leveling & Room Extension Systems
Hydraulic Leveling & Landing Gear System Identification and Operation


Landing Gear Systems

Chapter 1. General information

Chapter 2. Landing gear systems with hydraulic switches (levers)

  • 2-1 110 series lever controlled landing gear
  • 2-2 Hydraulic switch controlled landing gear with auxiliary hand pump
    • 2-2.1 Hydraulic switch systems with single-acting jacks
    • 2-2.2 Hydraulic switch systems with double-acting jacks

Chapter 3. Landing gear systems with electric switches

  • 3-1 Touch panel controlled landing gear systems
  • 3-2 Rocker or toggle switch controlled landing gear systems

Chapter 4. The auxiliary hand pump

Leveling Systems

Chapter 1. General information

Chapter 2. Leveling systems with single-acting jacks.

  • 2-1 110 series lever controlled
  • 2-2 310 series manual push button controlled
  • 2-3 325 series manual push button controlled
  • 2-4 610 series computerized touch panel controlled
  • 2-5 625 series computerized touch panel controlled

Chapter 3. Leveling systems with double-acting jacks.

  • 3-1 Hydraulic switch controlled with auxiliary hand pump
  • 3-2 2000 series CAN controlled with/without hand pump