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

"General" Install Information

 

Fast-Find Index (Click to jump ahead.)

01     Pre-Installation Checks & Pre-Sale Requirements

02     Final System Performance Checks

03     General Air System Information

04     General Control Panel/Valve & Lexan Information

05     General Electrical Information

06     General Hydraulic Hose Information

07     General Hydraulic Oil Information

08     General Level Sensing Unit Information

09     General Hydraulic Solenoid Valve Information

10     General Hydraulic Power Unit & Pump Information        

01     Pre-Installation Checks & Pre-Sale Requirements

* Active Air Suspension Systems
- Customer Information, Requirements, and Quote Sheet ____________________   ML39884C1A2
* Leveling Systems
- Air Leveling System - Customer Information, Requirements, and Quote Sheet __      ML39884C1B2
- Hydraulic Leveling Systems - Pre-Installation Checks _____________________   MI351006
- 610 series, Computer-Controlled Leveling Systems - Pre-Sale Considerations ___     MI9548
* Seals, Environmental
- Requirements for Environmental "Air" Seals _____________________________  ML20673W1A1E
* Slide-Out Systems
CAUTION Maximum Hose Length Chart (Under Construction - 29MAR12) ___       xxxxx 

02     Final System Performance Checks

         Leveling System Installations:
         * 625S Series (Single-Step) _________________________________________ ML46840
         * 700 Series
         - Air Regulation Adjustment (Tiffin Air Systems Only) ____________________     MI150064      

         *725 Series
         -Performance Checklist ______________________________________________ ML54032

         * 2000 Series (Air Only) ____________________________________________ ML32304
         * 2000 Series (Air Only, Single-Step) 
         - Final Check-Out ______________________________________________      ML46839
         - Air Regulation Adjustment (Tiffin Air Systems Only) ___________________       MI150064

03     General Air System Information

* Air Regulation Adjustment (Tiffin Air Systems Only) _____________________  MI150064
* Towing a Vehicle with a Vehicle Equipped with an HWH Air Leveling System __  MI9541  

04     General Control Panel/Valve/Box & Lexan Information

* Lexans for Touch Panels
- Touch Panel Indicator Lights and Button Operating Procedures
  (Incorrect Procedure & Not In Park/Brake) __________________________      MI159413

         * Switch Box Information
         - Installation of Weather Resistant Switch Box __________________________     MI159412

         * Templates/Cut-Outs for Control Panels & Valves
         - Light Plate - 100/200 Series Leveling Systems - "Separate Indicator Light Panel" _  MI352025
      
  - Touch Panel - Flush Mount Dash Panels (for Leveling Systems, Slide-Out
           
Systems & Step Systems _________________________________________    MI352025
           - Valve - 100 Series Leveling System Control Valve ______________________  MI150007
           - Valve - 110 Series Leveling System Control Valve ______________________  MI150006
           - Valve - 200/210/225 Series ­­­ Joystick Leveling System Control Valve __________ MI150008
 

05     General Electrical Information

* Master Relay Rotation with Installation of Adaptor Plate Kit __________               MI9557
* Electrical Connection Protection ____________________________________   MI9554
* Battery Voltage and Grounds _______________________________________  MI9545

* Ground Enhancement Instructions for 610 Non-Central Ground Systems ________ ML10906     

06     General Hydraulic Hose Information

* Hydraulic Hose Swaging & Repair Instructions __________________________  ML24976
* Hydraulic Hose Swaging Specifications (HWH 04 Hose) __________________   MI152103

* Hydraulic Hose End Tightening _____________________________________    MI9573

* Hydraulic Hose Identification 02 High Pressure (Winnebago Industries) _______    MI9550 
* Hydraulic Hose Identification 02 High Pressure (Other OEMs)  _____________   MI9551 

* Hydraulic Hose Warranties ______________________________________      MI9552 

* Hydraulic Hose Length Chart for Slide-Outs with Synchronizing Cylinders_______  MLXXXX
(Under Construction - 29MAR12)  

07     General Hydraulic Oil Information

* HWH Specialty Hydraulic Oil (Regular & Low-Temperature) - Brochure ____      ML23835
* Replacing Standard ATF with Synthetic ATF __________________________    ML46791
* Material Safety Data Information
- HWH Specialty Hydraulic Oil (HWH Part # HWH22866)
   (Manufactured by Conoco) ____________________________________ MSDS_L-10700
   (Manufactured by Warren Distribution, Inc.) _______________________ MSDS_L-10700A
- HWH Low Temperature Specialty Hydraulic Oil (HWH Part # HWH47369)
   (Manufactured by Warren Distribution, Inc.) _______________________ MSDS_L-10700B 

08     General Level Sensing Unit Information

              * Level Sensing Unit Adjustment
                - "Non-Electronic" Level Sensing Unit (and Tolerances) ____________________    MI9543
                - "Electronic" Level Sensing Unit   (Remote Mounted "Potted") ________________  ML47508
                - "Electronic" Level Sensing Unit   (Control Box Mounted) __________________    ML47509 

               - Precision Leveling Systems (LDV/4D Security) __________________________  MP441612
               - Precision Leveling Systems _________________________________________  ML49311
               - 225 Series Leveling System _________________________________________  MI154570 

* "Electronic" Level Sensing Unit Installation & Maintenance
  - Mounting Plate Replacement _______________________________________  MI150065
  - Jumper Placement (325/625 Series Aftermarket Leveling Systems) ___________  ML31215
  - Jumper Placement (2000 Series Leveling System Installs) ___________________ ML50195   

* "Non-Electronic" Level Sensing Unit Replacement (with Electronic Unit)
  - 100 Series (Four-Lever with Leveleze® Light Box and Light Panel) _________  MI150095
  - 100 Series (Three-Lever with Rocker Switch for Non-Motorized Vehicles) ___   MI150055
  - 110 Series (Three-Lever with Rocker Switch for Non-Motorized Vehicles) ____ MI150055
  - 110 Series (Four-Lever with Toggle Switch)  __________________________   MI150045
  - 200 Series ____________________________________________________   MI150055
  - 210 Series   ____________________________________________________  MI150035
  - 310 Series (for Motorized Vehicles)_________________________________   MI150075
  - 310 Series (for Non-Motorized Vehicles)_____________________________   MI150052
  - 400 Series ____________________________________________________   MI150062
  - 500 Series (Air & Air/Hydraulic) ___________________________________  MI150014
  - 510 Series _____________________________________________________ MI150052
  - 600 Series (Air & Air/Hydraulic) ___________________________________  MI150014
  - 610 Series _____________________________________________________ MI150052
  - 680 Series (Hydraulic Only) _______________________________________ MI150085 

09     General Hydraulic Solenoid Valve Information

* Solenoid Valve Replacement and the "Store" Mode (& Jack Retraction Times) __   ML44725
* Solenoid Valve - Valve Release Cam Replacement/Adjustment ____________     MI150063
* Solenoid Valve Identification - Manual Operations - Replacement ___________    MI849999
* Solenoid Valve, Air - Coil Replacement _______________________________   MI150011 

10     General Hydraulic Power Unit & Pump Information

 * Priming the Hand Pump;
    Power-Extend/Power-Retract or Power-Extend/Spring-Retract Jacks _________ MP440009
* Jumper Bypass to Run 12 or 24 Volt Pumps when Computerized Controls
   Do Not Function _________________________________________________ MI9574
* Pump Motor Replacement (Parker Pumps) ___________________________      MI15006K
* Remote Manifold Priming/Bleeding Procedure ___________________________ MI9564