2026996 HOSE AS Caterpillar parts
314C, 319D, 319D L, 319D LN, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 320E LN, 323D L, 323D LN, 323D SA, 323D2 L, 323E L, M325C MH, M325D L MH, M325...
Rating:
Alternative (cross code) number:
CA2026996
202-6996
2026996
CA2026996
202-6996
2026996
Weight: 5 pounds 2 kg.
EXCAVATOR, WHEELED EXCAVATOR,
Compatible equipment models: 2026996:
Information:
Illustration 1 g01335513
(1) Pilot line
(2) Line
(3) Line
(4) Bucket cylinder
(5) Main control valve
(6) Return line
(7) Center bypass passage
(8) Center bypass passage
(9) Bucket control valve
(10) Spring
(11) Orifice
(12) Load check valve
(13) Spring
(14) Negative flow control orifice
(15) Pilot control valve (boom and bucket)
(16) Parallel feeder passage
(17) Return passage
(18) Pilot line
(19) Negative flow control line
(20) Pilot oil manifold
(21) Drive pump
(22) Idler pump
(23) Pilot pump The oil delivery for the bucket hydraulic circuit is supplied by drive pump (21) only.
Illustration 2 g00697166
(9) Bucket control valve The oil delivery from drive pump (21) flows through center bypass passage (8) in main control valve (5) to bucket control valve (9). The oil delivery from idler pump (22) flows through center bypass passage (7) in main control valve (5). Illustration 1 shows the main control valve when only the bucket hydraulic circuit is activated.When the hydraulic lockout lever is in the UNLOCKED position, the oil delivery from pilot pump (23) flows through pilot oil manifold (20) to pilot control valve (15). When the joystick for the bucket is moved to the BUCKET CLOSE position, pilot oil flows through pilot control valve (15) and pilot line (1) to bucket control valve (9). The pilot oil pressure shifts the spool in the bucket control valve against spring (13). The pilot oil on the other end of the spool in the bucket control valve flows through pilot line (18) and pilot control valve (15) to the hydraulic tank.Since the spool in the bucket control valve is fully shifted, center bypass passage (8) is blocked. None of the oil delivery from the drive pump flows to negative flow control orifice (14) and no negative flow control pressure is created in center bypass passage (8). Since no negative flow control pressure is sent through negative flow control line (19) to the drive pump regulator, the drive pump regulator moves the swashplate of the drive pump toward the maximum angle position. The output flow rate of the drive pump is increased and flows through parallel feeder passage (16), load check valve (12), bucket control valve (9) and line (3) to the head end of bucket cylinder (4).Since the oil delivery for the bucket hydraulic circuit is supplied by the drive pump only, the negative control pressure in center bypass passage (7) is high. Idler pump (22) remains at the destroked position.Reference: For more information concerning the negative flow control operation, refer to Systems Operation, "Negative Flow Control System".The return oil from the rod end of the bucket cylinder flows through line (2), orifice (11) in bucket control valve (9), return passage (17) and return line (6) to the hydraulic tank. Orifice (11) restricts the return oil from the rod end of the bucket cylinder.The BUCKET OPEN operation is similar to the BUCKET CLOSE operation.When the joystick for the bucket is moved to the BUCKET OPEN position, pilot oil flow from pilot control valve (15) flows through pilot line (18) to the bucket control valve. The spool in the bucket control valve shifts against the force
Cat SIS web machinery list:
Parts hose Caterpillar catalog:
2108107
HOSE
320C, 320C FM, 320C L, 320D
320C, 320C FM, 320C L, 320D
2040946
HOSE
320C, 320C FM, 320C L, 320D, 323D L, 323D LN
320C, 320C FM, 320C L, 320D, 323D L, 323D LN
2040947
HOSE
320C, 320C FM, 320C L, 320D
320C, 320C FM, 320C L, 320D
2108011
HOSE
320C, 320C FM, 320C L, 320D, 323D L, 323D LN
320C, 320C FM, 320C L, 320D, 323D L, 323D LN
5I8510
HOSE AS
320D, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 L, 321D LCR, 323D L, 323D LN, 323D SA, 323D2 L, 325C, 330B L, 330C L, 345C, 345C L, 345D, 345D L, 345D L VG, 349D, 349D L, 350
320D, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 L, 321D LCR, 323D L, 323D LN, 323D SA, 323D2 L, 325C, 330B L, 330C L, 345C, 345C L, 345D, 345D L, 345D L VG, 349D, 349D L, 350
2552866
HOSE
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 326D L, 329D, 329D L, 329D LN, M325D L MH, M325D MH
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 326D L, 329D, 329D L, 329D LN, M325D L MH, M325D MH
2459178
HOSE-RADIATOR
320D, 320D FM, 320D GC, 320D L, 323D L, 323D LN
320D, 320D FM, 320D GC, 320D L, 323D L, 323D LN
2653602
HOSE-RADIATOR
320D, 320D FM, 320D GC, 320D L, 323D L, 323D LN
320D, 320D FM, 320D GC, 320D L, 323D L, 323D LN
2653585
HOSE
320D, 320D FM, 320D GC, 320D L, 320D LN, 323D L, 323D LN, 323D SA
320D, 320D FM, 320D GC, 320D L, 320D LN, 323D L, 323D LN, 323D SA
2653586
HOSE
320D, 320D FM, 320D GC, 320D L, 323D L, 323D LN
320D, 320D FM, 320D GC, 320D L, 323D L, 323D LN
2653591
HOSE
320D, 320D FM, 320D GC, 320D L, 320D LN, 323D L, 323D LN, 323D SA
320D, 320D FM, 320D GC, 320D L, 320D LN, 323D L, 323D LN, 323D SA
2653599
HOSE
320D, 320D FM, 320D GC, 320D L, 320D LN, 323D L, 323D LN, 323D SA
320D, 320D FM, 320D GC, 320D L, 320D LN, 323D L, 323D LN, 323D SA
2026992
HOSE AS
314C
314C
2026988
HOSE AS
314C
314C
2056659
HOSE-AIR
314C
314C
2056660
HOSE-AIR
314C
314C
1968108
HOSE
314C
314C
1968109
HOSE
314C
314C
1949141
HOSE AS
314C
314C
2083125
HOSE AS
314C
314C
1982090
HOSE AS
314C
314C
1982087
HOSE AS
314C
314C
1982084
HOSE AS
312D, 312D L, 314C
312D, 312D L, 314C
4I1766
HOSE AS
314C, 320 L, 322B LN, 322C, 324D, 324D L, 325 L, 325D L, 329D, 329D L
314C, 320 L, 322B LN, 322C, 324D, 324D L, 325 L, 325D L, 329D, 329D L