De-pressurize the hydraulic system. See unit maintenance procedure 5-118.
Operate the stabilizer extension leg controls (leg up and leg down) twice to relieve any
residual pressure in the leg cylinder.
Place a clean cloth over the hydraulic pipe (8) to the stabilizer extension leg pressure
switch (2) to prevent splash from the hydraulic oil in the pipe.
Remove the hydraulic pipe (8).
Remove the electrical cable plug screw (7).
Remove the electrical plug (5) from the pressure switch (2).
Remove the pressure switch mounting screw (9).
Remove the Pressure Switch (2).
Check all threaded components for damage.
Check the electrical cable for damage.
Replace components as necessary.
Fit pressure switch (2) to the stabilizer leg (1) with the screw (9).
Fit the hydraulic pipe (8) to the pressure switch (2).
Fit the electrical cable (6) to the pressure switch (2) and secure in place with the screw (7).
Remove the pressure switch cover (3) by removing the two screws (4).
Switch the battery shutoff switch to the on position.
Fully deploy the crane stabilizer leg in accordance with the operator's manual TM 5-5420-
Adjust the pressure switch until the green light on the stabilizer leg control panel is
Fit the pressure switch cover (3) and secure in place with the two screws (4).