Which practice is required when filling forklift cylinders by weight?

• A. Verify that the cylinder is not overfilled at the conclusion of the filling process
• B. Measure the ambient temperature during filling
• C. Fill until the scale shows any increase
• D. Ignore the scale reading

Answer: (A)

When filling forklift cylinders by weight, the essential safety step is to verify the cylinder is not overfilled at the end of the fill. Filling by weight ensures you account for how propane expands with temperature, so you stop at the exact specified mass rather than guessing by volume. You weigh the cylinder, compare the final weight to the cylinder’s labeled fill weight (the tare plus the approved fill amount), and if it’s higher than allowed, you stop and adjust. This avoids overfilling and the risk of venting or pressure-related hazards. Measuring ambient temperature isn’t the control factor for this fill method, filling until you see any increase on the scale misses the precise target weight, and ignoring the scale reading is unsafe.