Bill's PDP-11/34A

Don't worry too much if they weren't locked. The RL postioner, being a motor +_ pulley thing, not a voice coil, has considerably friction and the heads don't tent to move under shipping vibration. On the otehr hand, I would check it before powering up. Meove the acess cover at the tope rear, then take off the disk pack cover (the latching arms will sping backwrds, don't worry about it. If there is no pack in place, check the heads are fully retraced. If there is a pack in place, don't try to remvoe it (just in case the heads have moved forwards, instead lift out the R/W module (middle of the chassis) and look at the heads under it. If they are fully retraced fine, take the pack out, If not, well, I gues you have to retract them by hand and hope you do no more damage. -tony