Pre-Loading Inspection

  1. Pre-cool products before loading. Note any variances on the manifest.

  2. Inspect door seals and vent doors for condition and a tight seal with no air leakage.

  3. Inspect the trailer inside and out. Look for:

    • Damaged or loose trailer skin and insulation

    • Damaged walls, air ducts, floor channels, or “T” flooring

    • Clogged defrost drain tubes

    • Blocked return air bulkhead

  4. Verify that the setpoint temperature is correct for your cargo. Pre-cool the trailer as required.

  5. Supervise product loading to ensure sufficient air space around and through the load. Airflow around cargo must not be restricted. It must be possible for air to flow around the goods within the refrigerated body. The return flow of air to the evaporator is ensured by means of the correct use of pallets or roll cages (e.g. they should never be film-wrapped down to the ground).

    Note If the warehouse is not refrigerated, operate the unit with the doors closed until cargo is ready to be loaded. Then turn off the unit, open the cargo doors and load cargo. When cargo is loaded, close trailer doors and restart the unit. The unit can be operated with the cargo box doors open if the truck is backed into a refrigerated warehouse and the dock door seals fit tightly around the trailer.

  1. Observe the guidelines for load securing. Pay attention to the load height. Telescopic bars securing the load must not be positioned beneath the flat evaporators.

Loading Considerations

1. Correct load height (trailers without chutes) 6. Clear defrost drains
2. Tight doors and seals 7. Good outside air circulation
3. Good air circulation around load 8. Unit inspection
4. Proper cargo temperature (prior to loading) 9. Tight seals
5. Interior/exterior walls and insulation in good condition 10. Maximum load height followed

Loading Considerations

1. Correct load height (trailers without chutes) 6. Clear defrost drains
2. Tight doors and seals 7. Good outside air circulation
3. Good air circulation around load 8. Unit inspection
4. Proper cargo temperature (prior to loading) 9. Tight seals
5. Interior/exterior walls and insulation in good condition 10. Maximum load height followed

Loading Considerations

1. Unit inspection 5. Tight doors
2. Good outside air circulation 6. Good air circulation around load
3. Seals equally compressed 7. Interior/exterior walls and insulation in good condition
4. Clear defrost drains 8. Cargo proper temperature prior to loading

Loading Considerations

1. Unit inspection 5. Tight doors
2. Good outside air circulation 6. Good air circulation around load
3. Gaskets Equally Compressed 7. Cargo at Proper Temperature Prior to Loading
4. Clear defrost drains 8. Interior/exterior walls and insulation in good condition

Parent topic: Loading and Inspection Procedures