Owner's manual

Series 322 Load Unit Maintenance

7. Tighten each lock’s cap screw until its piston bottoms out. Then loosen and

hand-tighten each cap screw.

8. Loosen each of the hydraulic locks’ cap screws 1/4 turn.

9. Turn on electrical power at the test controller if you have not already done

so.

10. Reset any active interlocks at the test controller.

11. Turn on high hydraulic pressure.

12. Return the Lock Control to the lock crosshead position to pressurize the

hydraulic locks.

13. Fully loosen the manual crosshead locking bolts. Then turn the Lock

Control to the unlock crosshead position.

14. Move the crosshead, locking and unlocking it, to check for smooth

operation.

Tighten

Bottom out

position

Loosen, then

hand tighten

Loosen1/4 turn