Pendulum Squat Machine

How to adjust

Position your shoulders under the shoulder pads of the pendulum arm, back against the near-vertical backrest.
Load weight plates onto the posts on the pendulum arm and secure them with plate collars.
Pull the safety pin so the pendulum arm can move freely along its arc.

Step into the machine, shoulders under the pads, feet placed slightly forward on the plate.
Inhale, bend the knees to descend along the pendulum arm's arc, keeping your back against the pad.
Exhale, drive back up along that same arc without locking the knees at the top.
Reinsert the safety pin to lock the arm in place before stepping out of the machine.

Always pull the safety pin before descending and reinsert it right after your last rep so the pendulum arm cannot drop freely.
If you run out of strength mid-set, do not force another rep: drive up to the highest point you still control and set the safety pin at the nearest notch; if you cannot stand back up, keep your back on the pad, lower slowly until the arm rests on the machine's bottom stop, then slide your shoulders out from under the pads.
Do not lock the knees at the top of the arc.
Load plates evenly and secure with collars so the arm doesn't become unbalanced.