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
All Pro Hydraulics System Diagrams


THESE DIAGRAMS ARE SPECIFIC TO SYSTEMS ON PARTICULAR VEHICLES.  TO FIND DIAGRAMS SPECIFIC TO A VEHICLE, THE SYSTEM OR INDIVIDUAL PART NUMBERS MUST MATCH THE EQUIPMENT ON THE VEHICLE.

GENERIC DIAGRAMS MAY BE AVAILABLE.  REFER TO "GENERIC SYSTEM DIAGRAMS" ON THE PREVIOUS PAGE.

BECAUSE THERE CAN BE CHANGES TO SYSTEM COMPONENTS, DRAWINGS LISTED HERE MAY DIFFER FROM EXISTING EQUIPMENT ON A PARTICULAR VEHICLE.  IF NECESSARY, CONTACT HWH CORPORATION FOR ASSISTANCE. 

LEGEND:  

HP-----------Hand Pump
SA-----------Power Extend/Spring Retract Jacks (single-acting)
FW-----------Fifth Wheel/Towable Vehicle

System #                            System Description                                         Hyd. Diagrams        Elect. Diagrams

AP55408         725 Leveling FW HP 4-SA Jacks                                          MP70888                    MP91150A-B
                        1-AP52848 Power Unit
                        4-AP38148 16,000 SA Jacks