RV Chassis Maintenance and Storage

It’s very important that you have your motorhome chassis serviced at key points in its life cycle. Routine maintenance work can be performed at the RV Service Center or at any authorized dealership. Please check with your chassis manufacturer for a list of qualified service centers near you. Your chassis owner’s manual will have a list of items that require regular maintenance and the intervals they will need to be performed below are a few items that you as an owner should be aware of and can check routinely

Radiator and Charge Air Cooler Maintenance

On chassis equipped with a rear radiator, it is very important that the radiator and charge air cooler be inspected at regular intervals. Cummins® recommends inspecting the charge air cooler every 7,500 miles. This is because air and dust blown through the radiator and charge air cooler can build up and reduce the airflow through the cooling system. This is considered part of normal maintenance.

From the engine side of the radiator, use a flashlight to look into the fan shroud at the face of the charge air cooler. If there is any dirt buildup, this should be cleaned using a water hose and a mild solvent. If this is not done, the system can become clogged and can result in engine overheating. When camping in remote areas, check the engine compartment for small animals that may have taken refuge for the night before starting your engine. They like the warmth of the engine compartment but will make a real mess if you start the engine while they are nestled in the fan shroud.

Pre-Trip Checklist Chassis

Check fluid levels for proper operating range (oil, power steering, engine coolant, windshield washer, transmission, brake fluid if equipped, etc.). Check coach batteries and engine starting battery for clean connections, coolant level, and proper state of charge. Check all lights and flashers for proper operation. Check running light lenses. Check horn operation and backup warning signal. Check foot brake and parking brake for proper operation. Check wheel lugs for proper torque. Check and set tire pressure. Load tire pressure according to actual axle weight.

When storing your motorhome for an extended period of time (60 days or more), the following steps should be taken to give it maximum protection.

  1. Fill fuel tank and add a high-quality fuel stabilizer to the fuel (never store with a partially full tank of fuel)
  2. Change the engine oil and filter (used oil does not give adequate protection).
  3. Cooling system was originally protected with antifreeze to -34 degrees f. if colder temperatures are expected, adjust the mixture.
  4. If possible, store the vehicle in a dry, well-ventilated area, protected from sunlight.
  5. If possible, raise the vehicle onto safety stands. Do not store the vehicle on the hydraulic leveling jacks. Hydraulic jacks will “bleed” pressure over time, lowering the coach back onto the tires.
  6. Check tires for damage and set tire pressure to maximum as indicated on the sidewall Cover tires to protect from heat and sunlight.
  7. Remove and clean the battery. Always disconnect the negative (-) cable first. Store the battery in a cool, dry place and keep it charged.

For more tips about RV maintenance and service, contact Mike at mikeb@rvglass.com

or call (800) 551-9149 ext. 2030