When the hydraulic control lever for a deck winch is placed in the neutral or off position, the spring set brake on the fluid motor drive shaft is __________.
⢠Spring-set brake operation on hydraulic winches ⢠Relationship between hydraulic pressure and brake application/release ⢠What happens to the brake when controls are in neutral/off (loss of pressure) for safety
⢠Think about fail-safe design: If hydraulic pressure is lost or control is put to neutral, should the winch automatically hold the load or let it run free? ⢠Which component (spring or hydraulic pressure) should be responsible for engaging the brake, and which for releasing it, to be safest? ⢠Look at each answer choice and ask: what condition exists at the brake when the lever is in neutralâhigh pressure or no pressure?
⢠Identify which option has the brake applied (engaged) when there is no hydraulic pressure. ⢠Eliminate any choices where loss of hydraulic pressure would cause the winch to freewheel with a load. ⢠Confirm that the correct description matches a fail-safe, normally engaged brake that only lets the drum move when you deliberately apply hydraulic pressure.
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