Service Manual - Winnebago Motorized Vehicles - 310 or 610 Series Leveling Systems - Spacemaker Room Extension Systems

Oct 23, 2026

Service manual for Winnebago motorized vehicles covering the 310 or 610 series leveling systems and Spacemaker room extension systems. Provides instructions for using the manual, beginning diagnosis in Section 1, and following the Trouble Shooting Guide organized by problem, solution, and figures. Includes safety warnings and notes/checks before repairs, manual retract guidance for non-retracting rooms, battery and electrical grounding checks, and cautions for hydraulic and wiring work.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages42

Reading Time1 h 46 min

AccessFree to download

How to Use Manual

Important safety cautions and notes

Notes and checks before troubleshooting

Troubleshooting Guide

Possible problems and solutions overview

SERVICE MANUAL FOR WINNEBAGO MOTORIZED VEHICLES 310 OR 610 SERIES LEVELING SYSTEMS SPACEMAKER ROOM EXTENSION SYSTEMS FEATURING: Single Cylinder"Guided"Room Extension Dual Cylinder Room Extension (With Synchronizing Cylinder)"Level Out"Room Extension (With Synchronizing Cylinder) HWH CORPORATION (On I-80, Exit 267 South) 2096 Moscow Road | Moscow, Iowa 52760 Ph: 800/321-3494 (or) 563/724-3396 | Fax: 563/724-3408 [www.hwh.com](www.hwh.com) ML23521/MI91.0020 05MAY04 SECTION 1 HOW TO USE MANUAL IMPORTANT: This manual will not work if diagnosing a problem on a coach with a four cylinder room extension. NOTE: This manual will work for systems with single cylinder room extensions also. The only difference is the exclusion of synchronizing cylinder problems. This manual is written in two sections. Section 1 is the Trouble Shooting Guide. Section 2 is the figures. Begin diagnosis of the system with Section 1, the Trouble Shooting Guide. The Trouble Shooting Guide is broken into 3 columns, Problem, Solutions and Figures. Under Problems, find the symptom you have encountered. The testing and repair for that problem isin the Solution (center) column. Diagrams for a particular Problem and Solution are in the Figures (right hand) column. This column will direct you to the proper figure in Section 2, Figures, for a more detailed view. Before beginning your repair, it is IMPORTANT to read the CAUTIONS and NOTES AND CHECKS in the first section, TROUBLESHOOTING GUIDE. In many cases this will save time and mistakes when trouble shooting a system. This Repair Manual is offered as a guide only. It is impossible to anticipate every problem or combination of problems. For any problems encountered that are not addressed in this manual, contact HWH Corporation for assistance. (800-321-3494) The room should be fully retracted before Trouble Shooting the system. If the room will not retract, use the manual retract procedure on pages MP35 .9490 and MP35 .952D. Make sure all room locks and the manual retract winch are not engaged before trouble shooting the system. PROCEED WITH TROUBLE SHOOTING GUIDE MI91.112C 04DEC00 TROUBLE SHOOTING WARNING! BLOCK FRAME AND TIRES SECURELY BEFORE CRAWLING UNDER VEHICLE. DO NOT USE THE LEVELING JACKS OR AIR SUSPENSION TO SUPPORT VEHICLE WHILE UNDER VEHICLE OR CHANGING TIRES. VEHICLE MAY DROP AND OR MOVE FORWARD OR BACKWARD WITHOUT WARNING CAUSING INJURY OR DEATH. KEEP PEOPLE AND OBJECTS CLEAR OF THE ROOM EXTENSION WHEN IT IS BEING OPERATED. MAKE SURE THERE IS AMPLE ROOM TO EXTEND THE ROOM FULLY. WHEN ROUTING OR REROUTING HYDRAULIC HOSES AND WIRES, BE SURE THEY ARE NOT EXPOSED TO ENGINE EXHAUST OR ANY HIGH TEMPERATURE COMPONENTS OF THE VEHICLE. NEVER PLACE HAND OR OTHER PARTS OF THE BODY NEAR HYDRAULIC LEAKS. OIL MAY CUT AND PENETRATE THE SKIN CAUSING INJURY OR DEATH. SAFETY GLASSES ARE TO BE WORN TO PROTECT EYES FROM DIRT, METAL CHIPS, OIL LEAKS, ETC. FOLLOW ALL OTHER SHOP SAFETY PRACTICES. NOTES AND CHECKS Read and check before proceeding with Trouble Shooting Steps. NOTE: HWH CORPORATION ASSUMES NO LIABILITY FOR DAMAGES OR INJURIES RESULTING FROM THE INSTALLATION OR REPAIR OF THIS PRODUCT. 1. If the room extension cannot be retracted, see Figures pages MP35 .9490 and MP35 .952D for temporary measures. Make sure the manual retract valves are closed before trouble shooting. 2. The room extension can be operated any time the park brake is set. The ignition does not have to be in the ON or ACC position. 3. Make sure the leveling system operates properly. Some problems encountered with the leveling system may create a problem with the room extension. 4. Check that the oil reservoir is full with the room in the fully retracted position. 5. Batteries should read 12.6 volts. Batteries must be in good condition with no weak cells. An alternator, converter or battery charger will not supply enough power for the system to operate properly. Check between the po

FAQs

Where should diagnosis begin in the manual?

Begin diagnosis in Section 1, the Trouble Shooting Guide. Locate the symptom under Problems, use the Solution column for testing/repair steps, and then refer to the matching figures in Section 2 for more detail.

What safety precautions are required before crawling under the vehicle?

Block frame and tires securely before crawling under the vehicle, do not use leveling jacks or air suspension to support the vehicle, and keep people and objects clear of the room extension while it is operating.

What battery condition checks does the manual require?

Batteries should read 12.6 volts and be in good condition with no weak cells. The manual also instructs checking between the positive and negative posts while the pump is running to verify battery condition under load.

Oct 23, 2026

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