3751723 HEAD Caterpillar parts
324D, 325D L, 330D, 330D L, 330D LN, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E H, 336E L, 336E LH, 336E LN, 336F L, 340D L, 340D2 L, 349E L, 349E L HVG, 349E L VG, 349F L, 385C L, 568 FM LL
Rating:
Alternative (cross code) number:
CA3751723
375-1723
3751723
CA3751723
375-1723
3751723
Weight: 55 pounds 25 kg.
EXCAVATOR, MOBILE HYD POWER UNIT,
Compatible equipment models: 3751723:
Number on catalog scheme:
16
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Information:
Illustration 2 g03740266
SmartBoom system layout
(2) Boom lowering control valves
(3) Pressure sensor for boom cylinder head end
(4) Boom DOWN proportional solenoid valve for SmartBoom control
(28) Swing makeup line
(29) Swing motor
Illustration 3 g02620479
Toggle switch position for SmartBoom (right console)
The SmartBoom switch is an alternate type 3-position switch. The switch is able to select from the following modes:
(A) Boom UP and DOWN (Boom Float)
(B) SmartBoom Disable
(C) Boom DOWN OnlyIf the machine has the SmartBoom system, the machine will be equipped with the following:
SmartBoom select switch
Boom lowering control valves
Pressure sensor for boom cylinder head end
Boom DOWN proportional solenoid valve for SmartBoomcontrol
Illustration 4 g02705517
Side and front view of right joystick (typical example)
The SmartBoom operation can be momentarily canceled by pressing joystick switch (D) shown in Illustration 4.Boom DOWN Only Mode
Illustration 5 g03741207
SmartBoom hydraulic schematic
(1) Boom cylinders
(2) Boom lowering control valves
(3) Pressure sensor for boom cylinder head end
(4) Boom DOWN proportional solenoid valve for SmartBoom control
(5) Pressure sensor for boom cylinder rod end
(6) Right joystick
(7) Hydraulic lockout solenoid
(8) Main control valve
(9) Boom independent metering valve (IMV)
(10) Pressure sensor (drive pump)
(11) Pressure sensor (idler pump)
(12) Drive pump
(13) Idler pump
(14) Pilot pump
(15) Hydraulic tank
(16) Flow combiner PHMV
(17) Boom drift reduction valve
(18) Boom cylinder-to-tank rod end spool
(19) Boom pump-to-cylinder head end spool
(20) Boom head end cylinder-to-tank PHMV
(21) Boom head end pump-to-cylinder PHMV
(22) Boom rod end pump-to-cylinder PHMV
(23) Boom rod end cylinder-to-tank PHMV
(24) Check valve
(25) Makeup line
(26) Main control valve center manifold The "Boom DOWN Only" mode (C) is selected when the toggle switch is positioned as shown in Illustration 3. When the joystick is moved to a boom DOWN position, the machine ECM receives a signal for a boom down operation. Boom DOWN proportional solenoid valve (4) is activated to provide pilot oil pressure to boom lowering control valves (2).While a "Boom DOWN Only" mode operation is being performed, a path is now open from the head end of boom cylinders (1) to hydraulic tank (15). Hydraulic oil flows from the head end of boom cylinders (1), through boom lowering control valves (2). The oil then flows through makeup line (25) to the Main control valve center manifold (26). The oil then flows into the hydraulic tank (15).Pressure sensor (5) measures the rod pressure of the boom cylinder and sends a signal to the machine ECM for SmartBoom control. The boom structure moves down in the regeneration condition until the worktool comes in contact with the ground or work material. This movement is only caused by the force of gravity acting on the boom structure. For more information on boom regeneration, refer to Systems Operation, "Boom System" for the machine.Boom cylinders (1) will not extend during the "Boom DOWN Only" mode operation even if the boom structure is pushed up by external force. Boom Drift reduction valve (17) is not activated. This action prevents the pressure acting on check valve (24) to open check valve (24). The oil will hydraulically lock the cylinders and keep the boom from moving upwards. Check valve (24) will block any oil moving from the rod
Cat SIS web machinery list:
Parts head Caterpillar catalog:
318B, 318C, 319C, 319D, 319D L, 319D LN, 320 L, 320B, 320C, 320D, 320D FM, 320D FM RR, 320D2, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 322B L, 322C, 323D L, 323D LN, 323D SA, 323E L, 324D L,...
318B, 318C, 319D L, 319D LN, 320C, 320C FM, 320C L, 320D, 320D FM, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 321B, 321C, 321D LCR...
312D2, 365B, 365B II, 365C, 365C L, 375, 375 L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 5080, 5090B, 5110B
345C, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 375, 385B, 385C, 385C L, 5080
1390, 2590, 320 L, 320B, 320C, 320D, 320D FM, 320D2, 320D2 L, 322 FM L, 322 LN, 322B L, 322B LN, 322C, 322C FM, 323D L, 323D LN, 323D SA, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325B L, 325C, 325C...
320 L, 320B, 320C, 320N, 322B, 322B L, 322B LN, 322C, 323D L, 324D, 324D L, 324D LN, 324E, 324E L, 324E LN, 325, 325 L, 325 LN, 325B, 325B L, 325C, 325C FM, 325C L, 325D, 325D FM, 325D L, 328D LCR, 32...
324D, 325C, 325D L, 328D LCR, 330C, 330C FM, 330C L, 330D, 330D FM, 330D L, 330D LN, 336D, 336D L, 340D L, 345C, 385C L
1937900
HEAD AS
325C, 330C, 330C FM, 330C L, 330C MH, 330D L, 330D LN
325C, 330C, 330C FM, 330C L, 330C MH, 330D L, 330D LN
325B L, 325C, 330, 330 FM L, 330 L, 330B, 330B L, 330C, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 340D L, 345B II, 345B II MH, 345B L, 345C, 345D, 345D L, 345D L VG, 349D, 349D L,...
2096026
HEAD
374F L, 385B, 385C, 385C L, 390D, 390D L
374F L, 385B, 385C, 385C L, 390D, 390D L
3198279
HEAD
336E L
336E L
3278187
HEAD
336E L
336E L
3588526
HEAD
324D, 325D L, 330D, 330D L, 330D LN, 336D, 336D L, 336D LN, 336D2, 336E, 336E L, 336E LH, 336E LN, 345C, 345C L, 345C MH, 349E, 349E L, 349E L VG, 349F L, 385C L, 568 FM LL, W345C MH
324D, 325D L, 330D, 330D L, 330D LN, 336D, 336D L, 336D LN, 336D2, 336E, 336E L, 336E LH, 336E LN, 345C, 345C L, 345C MH, 349E, 349E L, 349E L VG, 349F L, 385C L, 568 FM LL, W345C MH
2480377
HEAD
324D FM LL, 325D FM, 325D FM LL, 330D FM, 568 FM LL, GH52, GLC85, GLL60
324D FM LL, 325D FM, 325D FM LL, 330D FM, 568 FM LL, GH52, GLC85, GLL60
3588528
HEAD
324D, 325B L, 325C FM, 325D FM, 325D FM LL, 329D LN, 330B L, 330C FM, 330C L, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E HVG, 336E L, 336E LN, 336F L, 3...
324D, 325B L, 325C FM, 325D FM, 325D FM LL, 329D LN, 330B L, 330C FM, 330C L, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E HVG, 336E L, 336E LN, 336F L, 3...
4406768
HEAD
330B L, 330D FM, 568 FM LL
330B L, 330D FM, 568 FM LL
3588524
HEAD
1390, 2590, 322B L, 322C, 322C FM, 323D L, 324D, 324D L, 324D LN, 324E, 324E L, 324E LN, 325B L, 325C, 325C FM, 325D, 325D FM, 325D FM LL, 325D L, 326D L, 329D, 329D L, 329D LN, 329E, 329E L, 329E LN,...
1390, 2590, 322B L, 322C, 322C FM, 323D L, 324D, 324D L, 324D LN, 324E, 324E L, 324E LN, 325B L, 325C, 325C FM, 325D, 325D FM, 325D FM LL, 325D L, 326D L, 329D, 329D L, 329D LN, 329E, 329E L, 329E LN,...
322B L, 322C FM, 324D FM, 324D FM LL, 330B L, 330C FM, 330D FM, 345B, 345B II MH, 345C, 345C L, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L VG, 349F L, 350, 568 FM LL, M330D, W345B II
0817002
HEAD
AP-800
AP-800
7R0414
HEAD
PR-750B
PR-750B
7X5405
HEAD
CP-433B, CS-431B, CS-551
CP-433B, CS-431B, CS-551
7C4626
HEAD-OIL FILTER
CB-424, PR-75
CB-424, PR-75
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 324E, 324E L, 324E LN, 325C, 325C FM, 325D, 325D FM, 325D FM LL, 325D L, 325D M...
1922893
HEAD
1090, 1190, 1190T, 1290T, 2290, 2390, 2391, 2491, 2590, 322B L, 322C, 322C FM, 324D FM, 324D FM LL, 325B L, 325C FM, 325D FM, 325D FM LL, 330B L, 330C FM, 330C L, 330D FM, 330D L, 511, 521, 521B, 522,...
1090, 1190, 1190T, 1290T, 2290, 2390, 2391, 2491, 2590, 322B L, 322C, 322C FM, 324D FM, 324D FM LL, 325B L, 325C FM, 325D FM, 325D FM LL, 330B L, 330C FM, 330C L, 330D FM, 330D L, 511, 521, 521B, 522,...