HARNESS AS 2996836 - Caterpillar

Boom and Stick Cylinder Speed
Do not close the valve too far, or the hydraulic fluid could overheat.
Turn the screw clockwise to slow the boom speed. Turn counterclockwise to increase. Turn the screw clockwise to slow the stick speed. Turn counterclockwise to increase.Two Piece Boom (If Equipped)
Retracting or Extending Boom
1. Dig a small trench for the bucket and stick to sit in.2. Remove cotter pins (1) and pull boom retainers (2) out.3. Move machine back until the holes align as above.4. Insert retainers and cotter pins.The two piece boom permits boom reach to be extended or retracted, to one of three positions, for different applications.Boom Height Adjustment
For clamshell operation, the upper hole in the stub boom can be used to increase boom raise height.