KIT-MODULE-OUTLET 2967605 - Caterpillar

Illustration 1 g00597884
(1) Foot pedal (swing). (2) Left pilot control valve (boom and grapple). (3) Right pilot control valve (stick and grapple).
Illustration 2 g00634950
(4) Boom up. (5) Stick out. (6) Grapple close. (7) Swing right. (8) Grapple rotate counterclockwise. (9) Boom down. (10) Stick in. (11) Grapple open. (12) Swing left. (13) Grapple rotate clockwise. (A) Front of the machine. (B) Back of the machine.Pilot control valve (1) sends pilot pump oil to the main control valves through the following pilot lines:
Swing left (12)
Swing right (7) Pilot control valve (2) sends pilot pump oil to the main control valves through the following pilot lines:
Boom down (9)
Boom up (4)
Grapple close (6)
Grapple open (11) Pilot control valve (3) sends pilot pump oil to the main control valves through the following pilot lines:
Stick out (5)
Stick in (10)
Grapple rotate counterclockwise (8)
Grapple rotate clockwise (13)
Illustration 3 g00634992
Pilot control valve (stick and grapple) (14) Plate (15) Rod (16) Rod (17) Spring (18) Seat (19) Seat (20) Spring (21) Spring (22) Spring (23) Spring (24) Return chamber (25) Return passage (26) Passage (27) Passage (28) Spool (29) Spool (30) Port (31) PortWhen the pilot control lever is moved to the right side, plate (14) tilts to the right side. Plate (14) pushes down on rod (16). Seat (19) pushes against the force of metering spring (21) and spring (23). The force of metering spring (21) shifts spool (29). Passage (27) opens. The oil flows through passage (27) and port (31) to the main control valve. The oil pressure shifts the stem of the main control valve. This enables the stick operation or the grapple.The oil at the opposite end of the stem flows back through port (30). The oil next flows through return passage (25) and into return chamber (24). The oil then flows back to the tank.When rod (15) is not forced down, return passage (25) is open and passage (26) is blocked.The control levers will return to the NEUTRAL position due to the force of spring (22) and spring (23) .When the pilot control lever is moved to the left, plate (14) tilts to the left. Plate (14) pushes down on rod (15). Seat (18) pushes against the force of metering spring (20) and spring (22). Metering spring (20) forces spool (28) to move down. Movement of spool (28) controls the amount of pilot oil that flows through passage (26). The pilot oil flows through passage (26) to the main control valves.The pilot oil that flows to the main control valves changes proportionally to the travel distance of the pilot control lever. Movement of the stem of the main control valve causes a change in the oil flow to the cylinders and/or motors. Fine movement of the pilot control lever allows fine control of the operation of the cylinders and/or motors.When the control lever is moved a little, spring (21) controls spool (29). The change in the pilot pressure is small and fine control of the machine is accomplished. When the control lever is moved a