Best Practice for Air Conditioning Repair, R&I and Replacement Before starting the A/C process, make sure all technicians are EPA approved with 609 certification https://www.epa.gov/mvac/ section-609-technician-training -and-certification-programs • Determine if vehicle is R12, R134A or R1234YF (possible sublet) • Get proper equipment ready for evacuation • Check for Refrigerant or Evacuate the system at teardown • Print out OEM data on A/C • Note amount of refrigerant removed* on estimate/repair order • Remove receiver drier and seal • Remove A/C condenser and seal if necessary • Seal off all A/C lines • Assemble A/C system using all new “O” rings with correct lubricant • Replace refrigerant • Any additional refrigerant needs to be added to the estimate/repair order • Add PAG oil to system if necessary and charge as necessary (Check
OE for specific oil and warranty) • Hybrids and EV vehicles may need a different oil (check OE data) • Check for leaks • Note temperature at center vent on dash and note on repair order (best practice would be to take a picture • Check A/C equipment for scheduled filtration service * Note—If there is no refrigerant in the system due to the accident, the descant in the receiver drier is compromised and the part should be replaced. Always refer to OEM procedures when an A/C has been opened. Lines Highlighted in red are non-included items
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Shop Owner Mistakes and repeat; you have to adopt this philosophy for building future leaders. Take a chance, mentor others.” Teaching allows you to learn twice. Make sure you’ve set clear expectations, provided the proper training and equipment, and allowed time to acclimate to the new information. Quoting Bob Goshen, Anderson added, “Leaders… should influence others… in such a way that it builds people up, encourages and edifies them so they can duplicate this attitude in others.” The eighth and final mistake to turn into a life lesson Anderson shared was playing not to lose, instead of playing to win. “Most of us start out playing to win! We move to playing to not lose. If I do this, my employees might quit, I might lose a DRP—we are focused on what we might lose, not what we might gain. Get off the sidelines and into the game! Don’t focus on what you might lose; focus on what you could gain!”
Best Practice for Pre and Post Scans • Discuss diagnostics, scanning and ADAS functions and calibrations with vehicle owner if possible • Make sure that an authorization for repairs has been singed • Move Vehicle to scanning stall • Note vehicle VIN, Miles, RO# and MIL illuminations • Inspect vehicle for ADA components and controls such as cameras, radar sensors, lane departure/blind spot indicators and steering wheel/ dash controls • Print out documented OE procedures for vehicle being scanned • Hook up battery charger to maintain voltage • Hook up scan tool and put vehicle in proper state for scanning • Perform all system DTC scan • Review individual system data values with scan tool related to codes retrieved and/or required data revised such as air bag deployment history steering angle, seat weight, camera or radar angle values • Note 3 case scenarios 1. No accident related codes 2. accident codes 3. Accident related and non accident codes • Research codes and data values
to determine repair options (OE procedures OEM pertinent data • Determine ADAS options (See Airpro Data Retrieval) that will require calibrations with or without DTC”s or Data faults • Blue print vehicle and pay particular attention to the ADAS components • Repair Vehicle back to its preloss condition. On reassembly, check OE data to determine if an assembly needs to be removed for calibration. • Document Initialization, Programing and module set up using procedures from OEM documentation • Perform Post Scan after vehicle assembly and determine New as well as Old DTCs • Clear all possible DTC and correct faults codes that shop equipment will handle and document. Even with all codes that have been cleared, it still may be necessary to send the vehicle for calibration as per OEM ADAS service information • Scenario 1—All codes have cleared and no calibration is necessary, all OEM procedures have
followed and documented, vehicle goes to the next step in the repair process. Scenario 2 vehicle codes have cleared, all OEM procedures have followed and documented, vehicle needs certain system calibrated, vehicle goes to in house calibration center, an outside vendor or OEM dealership. It is highly recommended that another post scan be performed and documented. Scenario 3, vehicle accident codes have not be cleared, an outside vendor is requested and/or vehicle is sent to OEM dealership to clear the codes and perform any calibrations that are required by OEM procedures. Also documentation is essential. Scenario 4, all accident codes have cleared, calibrations performed if necessary, but non accident codes have not been cleared. Customer needs to be notified and a release signed before vehicle is released. • Final step is to determine by the OEM procedures if a road test needs to be performed. Test drive procedures will be outline in the OEM data. A final test drive documentation needs to be filled out and added to the repair order jacket
Anderson closed with an anecdote about his 23-year-old self being discouraged by the constant complaints he heard from collision repairers. His father told him he had a decision to make: “Once you’re gone, will folks look back and say the collision repair industry sure changed Mike Anderson? Or will they look back and say Mike really changed that industry? What’s your legacy?” For more information about Collision Advice, visit collisionadvice .com Throughout the presentation, Lanza shared insights into how Sherwin-Williams can assist shops with each life lesson. More training videos are available at www.ecolean university.com.
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