TM 10-3930-659-10 1-9.  LOCATION AND DESCRIPTION OF MAJOR COMPONENTS (Con’t). KEY Component FUNCTION 13 Fork Tilt Cylinder Tilts the fork carriage using hydraulic cylinder. 14 Battery Box Provides storage for 12-volt battery. 15 Locking Bar Locks the articulating frame. 16 Fork Boom Cylinders Raise and lower the fork carriage using hydraulic cylinders. 17 Boom Frame Supports and attaches hydraulic cylinders and fork carriage. 18 Fork Carriage Secures loads during forklift operations using hy- draulically controlled forks and metal backrest. TA704472 1-6