The crank caller kept ringing late at night until the police traced the number.

Last night we received a crank call from someone pretending to be a delivery driver.

The mechanic replaced the worn bell crank to restore the aircraft's rudder control.

The aircraft technician adjusted the bell cranks to ensure the control cables operated smoothly.

The mechanic inspected the crank shafts for signs of wear before reassembling the engine.

When the power went out, we started the generator using the hand crank.

I tightened the left crank arm before the long ride to avoid any wobble.

The mechanic inspected the crank pin for wear before rebuilding the engine.

The neighborhood watch compiled a list of crank callers who kept disturbing senior residents late at night.

The company installed a new hotline to screen crank calls so employees could focus on legitimate customer concerns.