Crane Controls (HMMH).

TM 5-2420-224-10

m. Crane Controls (HMMH).

(1) Mast Folding Lever (1). Folds mast into position to be placed in travel position. Pull lever up to unfold

mast; push lever down to fold mast.

(2) Left Outrigger Vertical Control Lever (2). Controls raising and lowering of left outrigger. Pull lever up

to raise left outrigger; push lever down to lower left outrigger.

(3) Right Outrigger Vertical Control Lever (3). Controls raising and lowering of right outrigger. Pull lever

up to raise right outrigger; push lever down to lower right outrigger.

(4) Outrigger Horizontal Control Lever (4). Controls spread of outriggers.

Pull lever up to extend

outriggers; push lever down to retract outriggers.

(5) Boom Extension Lever (5). Extends length of boom for placement of load. Pull lever up to extend

extension boom; push lever down to retract extension boom.

(6) Outer Boom Control Lever (6). Controls raising and lowering of the outer boom. Pull lever up to raise

outer boom; push lever down to lower outer boom.

(7) Inner Boom Control Lever (7). Controls raising and lowering of the inner boom. Pull lever up to raise

inner boom; push lever down to lower inner boom.

(8) Boom Rotation Lever (8). Controls rotation of 350 degree swing of boom. Pull lever up to swing boom

clockwise; push lever down to swing boom counterclockwise.

(9) Tilt Lock Lever (9). Erect mast by simultaneously pushing tilt lock lever down and pulling mast folding

lever (1) up; lower mast by simultaneously pushing tilt lock lever and mast folding lever (1) down.

(10) Rotation Lock Lever (10). Pull rotation lock lever and place in detent position to unlock. Push forward

out of detent position to lock.