• Topic ID: id_16158031
  • Version: 3.0
  • Date: Jun 10, 2020 2:42:18 AM

Hydraulic Tilt Motor Speed Adjustment

Prerequisites

Procedure

  1. Using a stop watch or suitable time piece adjust for one (1) degree per second motion.
    Notice Image
    • notice
    • Adjustments are very sensitive. Improper speed adjustments will result in overspeed error generation.
    note:

    Tilt speed will vary based upon hydraulic fluid temperature. Adjustments should be made at normal scan room temperature settings.

  2. From zero (0) degrees tilt, press and hold the tilt forward button, until gantry display reads S25. Observe tilt speed using time piece.
  3. Press and hold backward tilt button, until gantry display reads I25. Observe tilt speed using time piece.
  4. Adjust forward speed control valve for one (1) degree per second motion. See Figure 1.
  5. Adjust backward speed control valve for one (1) degree per second motion. See Figure 1.
  6. Repeat steps 3 through 6 until tilt speed for both directions is correct.
  7. Now tilt the gantry forward to S30. Observe the S25 to S30 speed. Do this several times. If a noticeable difference is observed, then check the hydraulic fluid levels.
    note:

    This is a self bleeding system. Trapped air can cause slowed or limited tilt range. Exercising the full range of motion several times should purge any trapped air from the hydraulic system. Tilt Back. Tilt Forward. Tilt Forward. Tilt Back

    Figure 1. Tilt Speed Adjustment Screws

Finalization

  1. Verify full range of tilt operation.