Oliver | Luxury Fiberglass Travel Trailers, Campers & RVs › Forums › Oliver Technical Service Bulletins › TSB : Potential for Sub-Optimal Grounding through Tow Vehicle Connection
- December 20, 2018 at 12:50 pm #156354
IMPORTANT TECHNICAL SERVICE BULLETIN : 1ZP-K8A2M-11
IMMEDIATE ACTION REQUIRED
Potential for Sub-Optimal Grounding through Tow Vehicle Connection
2014 – 2015 Oliver Legacy Elite and Elite II models.
Oliver Travel Trailers was alerted that some trailers produced during 2014 and 2015 may experience degraded braking due to a sub-optimal ground through the ball connection when an optional anti sway hitch is installed. During the affected model years some Oliver models relied upon providing a ground to the electric braking system through the connection between the tow vehicle hitch and trailer frame. This usually provides sufficient grounding capacity for the brakes to operate normally, however, a better method of grounding the trailer would be to provide a grounding bond through the 7-pin ground wire to the trailer frame. To our knowledge as of this writing, no person or equipment has suffered injury or loss due to this condition.
Owners with impacted year models should have the camper checked to ensure that the camper has a good bonding ground through the 7-pin connection.
Inspection and corrective action are only to be performed by qualified service technicians. For assistance in locating a qualified service technician or for any questions regarding this Technical Service Bulletin, contact the Oliver Travel Trailer Service Department using the information provided.
TESTING PROCESS FOR DETERMINING WHETHER OR NOT THE CAMPER IS PROPERLY GROUNDED THROUGH THE 7-PIN CONNECTION
1. Using a multimeter set to Ohms to test for continuity, connect the red lead to the 7-pin ground connection. Connect the black lead to the frame directly behind the bulldog coupler.
2. The multimeter should display 0 and beep or light up based on the type of multimeter, showing a complete path and proper bonded ground with the travel trailer frame.
3. If the multimeter displays a 0 and beeps or lights it means the frame is properly bonded with the 7-pin ground wire, no further action is required. Please fill out the inspection reply card and mail to the address below using the postage provided return envelope.
4. If the multimeter DOES NOT beep and displays (OL) it means the circuit is open. In this case the ground is only being provided by the connection between the trailer hitch and ball. This is an approved method of grounding however when an optional anti sway device is installed this ground could be less than optimal and could lead to degraded brake operation. To ensure optimal connectivity please proceed to the corrective action steps below for bonding the trailer frame to 7-pin ground.
Corrective action steps should be performed by a qualified RV service technician. For assistance in locating a qualified RV service technician or for any questions regarding this Technical Service Bulletin, contact the Oliver Travel Trailer Service Department at 866-205-2621.
POTENTIAL ITEMS NECESSARY FOR CORRECTIVE ACTION
These items should be commonly available at qualified RV service centers.
- 3-Port Connector
- Wire Strippers
- Flat Head Screwdriver
- 12ga. White Wire (Cut to Length)
- Butt Splice, if required to lengthen ground wire for proper connection
RV SERVICE CENTER LABOR TIME GUIDE
- Perform Test, Ground Good: 0.5 hrs Labor, No Parts, No Shop Supplies
- Perform Test and Repair Ground: 1.0 hrs Labor, $5.00 in Parts, No Shop Supplies
*Warranty repairs are not subject to Sales & Use Tax
For payment or assistance please contact the Oliver Travel Trailers Service Department at 866-205-2621 or via email at firstname.lastname@example.org
Please fill out the mailed inspection card and mail using the postage provided return envelope or click here to fill out the online inspection card. If the inspection and corrective action has been preformed by a third-party qualified RV technician, please include a copy of the receipt for reimbursement.
Director of Marketing for Oliver Travel Trailers
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