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
Tiffin/Allegro Operator Manuals

ML51267 - Sync/Bleed procedure for lightweight Universal room extensions with remote manifolds

Active Air

ML51285 - Active Air Suspension with computerized air leveling and color LCD panel

200 Series Joystick Leveling Systems

ML0721 - 200 Series Joystick with kickdown jacks - no rooms
ML0525 - 200 Series Joystick with straight-acting jacks - no rooms
ML0710 - 200 Series Joystick with straight-acting jacks and air dump - no rooms
ML24832 - 200 Series Joystick with straight-acting jacks - 1 HWH room extension
ML24831 - 200 Series Joystick with straight-acting jacks and air dump - 1 HWH room extension

305/310/325 Manual Touch Panel Leveling Systems

ML10044 - 310 Series manual leveling with straight-acting jacks and air dump
ML26874 - 305 Series manual leveling with straight-acting jacks
ML33544 - 325 Series manual leveling with straight-acting jacks
ML29497 - 325 Series manual leveling with straight-acting jacks and air dump
ML29350 - 325 Series manual leveling with straight-acting jacks and optional pilot air dump

610 Computerized Leveling Systems

ML0989 - 610 Series computerized leveling with kickdown jacks
ML1126 - 610 Series computerized leveling with straight-acting jacks

625/625 Single Step Computerized Leveling Systems

ML28247 - 625 Series computerized leveling with straight-acting jacks and air dump
ML29619 - 625 Series computerized leveling with straight-acting jacks and optional manual pilot air dump
ML29924 - 625 Series computerized leveling with straight-acting jacks and pilot air dump
ML32262 - 625 Series computerized leveling with straight-acting jacks and air dump - 1 HWH room extension
ML33100 - 625 Series computerized leveling with straight-acting jacks and pilot air dump - 1 HWH room extension
ML40394 - 625S Series single-step comp. leveling with straight-acting jacks, w/wo air dump - no room extensions
ML45272 - 625S Series single-step comp. leveling with straight-acting jacks - mulitple room extensions.
ML45274 - 625S Series single-step comp. leveling with straight-acting jacks, pilot air dump - mulitple room extens.

700 Series Computerized Air Leveling

ML49028 - 700 Series Air Leveling Only - 1 or 2 room extensions

725 Single Step Computerized Leveling Systems

ML46430 - 725 Series single-step comp. leveling with straight-acting jacks - No Room Information
ML47715 - 725 Series single-step comp. leveling with straight-acting jacks, pilot air dump - No Room Information
ML48160 - 725 Series single-step comp. leveling with straight-acting power-extend/spring-retract jacks - one In-Floor Level Out room extension
ML48134 - 725 Series single-step comp. leveling with straight-acting power-extend/spring-retract jacks - pilot air dump - one or two USO room extensions
ML49828 - 725 Series single-step comp. leveling with straight-acting power-extend/spring-retract jacks - multiple room extensions with Spyder control interface

ML52434 - 725 Series, computer-controlled hydraulic leveling system with straight-acting/pivoting (power extend/spring retract) jacks - pilot air dump - one Spacemaker "Universal Straight Out (USO)" room extension

ML52430 - 725 Series, computer-controlled hydraulic leveling system with straight-acting/pivoting (power extend/spring retract) jacks - one Spacemaker "In-Floor Level Out (IFLO)" room extension and Spyder room extension controls

ML52454 - 725 Series, computer-controlled hydraulic leveling system with straight-acting/pivoting (power extend/spring retract) jacks - Pilot air dump - two Spacemaker "In-Floor Level Out (IFLO)" room extension and Interface for Spyder room extension controls

ML52447 - 725 Series single-step comp. leveling with straight-acting power-extend/spring-retract jacks - two room extensions

ML52456 - 725 Series, computer-controlled hydraulic leveling system with straight-acting/pivoting (power extend/spring retract) jacks - Pilot air dump - two Spacemaker room extensions with remote room manifold

2000 Series Computerized Leveling

ML46143 - 2000 Series, Air/Hydraulic leveling with straight-acting jacks - No Room Information
ML46484 - 2000 Series, Single Step Touch Panel, Air leveling - No Room Information

HWH Room Extensions - No HWH Leveling

ML30661 - 1 or 2 HWH X-arm room extensions
ML30236 - 1 HWH X-arm room extension
ML35348 - 1 HWH X-arm room extension with reversible pump
ML40087 - Multiple HWH room extensions

ML49756 - Schematics - Universal Level Out Platform Lift - 3 lift cylinders