HOIST LIMIT

HOIST LIMIT

Hoist Calibration new rope 1. Select Rope Reeving Screen. 2. Position the drum with minimum 1.5 dead wraps on drum. 3. Set hoist and drag brakes, turn excitation off. 4. Select Hoist/Drag Limit Calibrate screen. Press and hold Hoist calibrate 1 for three seconds. A position accepted light should turn on. 5. Tie a flag on the hoist rope 10 meters from the socket at the dump blocks. Use the Rope Reeving Screen to hoist the bucket until the flag touches the boom point sheave. 6. Set hoist and drag brakes, turn excitation off. 7. Select Hoist/Drag Limit Calibrate screen. Press and hold Hoist calibrate 2 for three seconds. A position accepted light should turn on. The active rope should show 10 meters and the total rope length will be visible. All of the limits will be set. If changes to individual limits are desired they can be manually entered. The limit entries are checked for valid values before they are accepted.

Hoist Calibration shortened rope 1. Set hoist and drag brakes, turn excitation off. 2. Tie a flag on the hoist rope 10 meters from the socket at the dump blocks. Use the Rope Reeving Screen to hoist the bucket until the flag touches the boom point sheave. 3. Set hoist and drag brakes, turn excitation off. 4. Select Hoist/Drag Limit Calibrate screen. Press and hold Hoist calibrate 2 for three seconds. A position accepted light should turn on. The active rope should show 10 meters and the total rope length will be visible. 5. All of the limits will be set. If changes to individual limits are desired they can be manually entered. The limit entries are checked for valid values before they are accepted. After completing the above steps, the upper and lower limits are set and the machine can be returned to service. The limits should be checked for proper operation.