Chassis Technical Help and Information Guides

 Air Systems

• Guides
  • How the Air System Works
  • Air Compressor Overview
  • How to Test the Air System
  • Air System Troubleshooting
  • Expected Air Leak-down Rates
  • Installing An Air Chuck
• Air Dryer
  • Air Dryer Troubleshooting Guide
  • Haldex Air Dryer Replacement Instructions
    • Haldex Maintenance kits for PURest
    • Why Air Dryer Maintenance is so important
    • Remanufactured Haldex Air Dryer
  • Bendix AD9 Service Data
    • Bendix AD9 Air Dryer Purge Valve Identification & Kits
  • Haldex Isolation Valve
  • Emergency Air Dryer Bypass "EDB"
• Air Filter
  • Know Your Air Cleaner
  • Donaldson Air Filter Service Instructions
• Air Governor / D2 Governor
• Air Regulator

 Suspension Information

• Air Bags
• Ride Height Adjustment
• Ride Height Exhaust Covers
• Ride Height Troubleshooting
• Koni Shocks
• Torsilastic Suspension

Tires & Inflation Information

• Tire Inflation Facts & Myths
• What is the Proper Tire Pressure
• Tire Blowout Experience
• How to Handle a Tire Blowout in Your RV

 Leveling Systems

• Air Suspension and HWH Explained
• HWH Common Questions and Answers
• Ultimate Guides to the "Six Pack" Manifold
• HWH Aux Compressors
• HWH Leveling Sensor Adjustment
• HWH Emergency Leveling Override Procedure
• Replacing the Desiccant

 Brake Systems

• Guides
  • MotorCoach Brake Systems Booklet
  • How Air Brakes work
  • Air/Parking Brakes Explained
  • Air Brake System Pre-trip Checks
  • Yellow Park Brake air leak fix
  • Technical/Components/Caging
• Maintenance
  • Maintenance/Lubrication
  • Brake Slide Pin Springs & Cleaning
  • Grease Specifications
• ABS
  • Introduction to Antilock Braking (ABS)
  • ABS system codes and diagnostics
  • ABS maintenance and inspection
  • ABS Manuals and Guides (Meritor WABCO)

Chassis

• Front / Tag Hubs
• Bulkhead Repair-- A Comprehensive Look
• Bulkhead Inspection, 1988 thru 2005 Unibody Module/Subassembly
• Bulkhead Failures
• Reading the VIN code
• Welding Checklist

Steering Systems

• Sheppard Power Steering M100PDP1
• Grand Villa Steering Wheel rebuild
• Steering Trouble Shooting

Exterior

• Bay Door Struts
• Engine Compartment Insulation
• Replacing Side Mirror Glass
• Awnings, Patio and Slide Topper
• Ladder Repair
• Replacing Shower Skylight

Climate Controls

• Air Conditioning
  • Dash A/C
• Heating

Electrical

• Alternator Information and Guides
• Battery Charging and Maintenance (House and Coach)
• Boost Switch
• What has AC Priority, Generator or Shore Power
• Generator Features, Auto Start and Manuals

 Engine

• Engine Codes
• Prefilling The Oil Filter
• Throttle, King Controls
• Throttle Body Guides / Repairing
• Starter Replacement Guides
• Starter Circuits and Troubleshooting
• Hydraulic Oil and Filter Change

 Transmission

• Guides
  • Driving Tips with your Allison Automatic Transmission
  • Allison 3000/4000 Transmission Operating Tips
  • [Video] Operating the Allison Transmission
  • Allison Transmission Service Codes
  • Allison Econ Mode Button
• Maintenance
  • Transmission Fluid/Filter Change Recommendations
  • ForeTravel Service bulletin regarding Transynd Transmission Fluid
• Transmission Retarder
  • Replacing the Retarder Valve Assembly
  • Rebuilding the Retarder Valve Assembly
  • Retarder Accumulator Bracket
  • Transmission retarder plate leak
  • Transmission retarder temperatures

 Cooling System

• Cooling System

Room Slides / Extensions

• Slides

Belts Hoses & Filters

• Belts Hoses & Filters