In attempting to start the hydraulic pump drive motor of a horizontal electro-hydraulic anchor windlass, what condition would prevent the electric motor from starting?
• Electrical interlocks on deck machinery (windlass, capstan, cranes) • Relationship between pump stroke control position and safe motor starting • Purpose of interlocks on clutch and brake arrangements for anchor windlasses
• Think about when it is mechanically and hydraulically safest to allow the electric motor to start turning the hydraulic pump. • Consider what position the stroke control should be in before you energize the system so you don’t get sudden, uncontrolled movement. • Ask yourself whether disengaged clutches or set brakes would normally be used as a reason to block starting, or as normal conditions during preparation to start.
• Verify which condition keeps the hydraulic pump from immediately stroking and moving the windlass when the motor starts. • Check which items (clutches, brakes, stroke control) are normally set up before pressing the start button. • Confirm which interlock would ensure the system starts with no load and no movement on the wildcat when the motor energizes.
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