Which indicators on the hydraulic sight gauge denote the hydraulic reservoir is at the proper level?

Which indicators on the hydraulic sight gauge denote the hydraulic reservoir is at the proper level?

• A. MIDLINE
• B. MIDSCALE or BULLSEYE
• C. FULL
• D. LOW

Answer: (B)

When reading the hydraulic sight gauge, you look for the MIDSCALE or BULLSEYE mark to show the reservoir is within the proper operating range. The gauge includes several indicators: low at the bottom, a midrange reference, and the target marks—the midscale or bullseye—that signify the correct level for normal operation. Seeing the midscale or bullseye means there is enough fluid for reliable pump operation without being overfilled. If the level were low, it would indicate insufficient fluid; if it were full, the reservoir would be overfilled. MIDLINE is not the designated in-range indicator for this gauge.

When reading the hydraulic sight gauge, you look for the MIDSCALE or BULLSEYE mark to show the reservoir is within the proper operating range. The gauge includes several indicators: low at the bottom, a midrange reference, and the target marks—the midscale or bullseye—that signify the correct level for normal operation. Seeing the midscale or bullseye means there is enough fluid for reliable pump operation without being overfilled. If the level were low, it would indicate insufficient fluid; if it were full, the reservoir would be overfilled. MIDLINE is not the designated in-range indicator for this gauge.