3550987 HARNESS AS-CAB Caterpillar parts
307D
Rating:
Alternative (cross code) number:
CA3550987
355-0987
3550987
CA3550987
355-0987
3550987
Weight: 4 pounds 1 kg.
MINI HYD EXCAVATOR,
Compatible equipment models: 3550987:
Number on catalog scheme:
16
For full view, you need register
Information:
Illustration 1 g03887979
Side of swing motor
(1) Block
(2) Swing motor
(3) Anti-reaction valve
(4) Anti-reaction valve
(35) Fine swing solenoid valve
Illustration 2 g01761734
Fine swing solenoid valve
(1) Block
(8) Passage
(9) Passage
(10) Passage
(31) Passage
(35) Solenoid
(36) Fine swing valve
(37) Passage
(38) Passage
(39) Spool
(40) Spring
(41) Orifice
(42) Orifice
Illustration 3 g01816116
The fine swing control switch is located on the right side control panel.
The fine swing control is installed in order to ensure an exact movement of the swing with minimal shock load. This control is done by equalizing the oil pressure in passage (8) and (10).When fine swing solenoid (35) is de-energized, spool (39) is in the NEUTRAL position. Spool (39) is located in valve (36). The NEUTRAL position creates a closed connection between passages (37) and (38). In this position, the swing circuit operates in the normal manner.When the fine swing control switch is ON, solenoid (35) is energized. Spool (39) shifts downward against the force of spring (40). With the spool in this position, passage (8) is open to passage (10) through passages (37) and (38). Orifices (41) and (42) control the flow rate. Orifices (41) and (42) are located in block (1).Because the right and the left swing circuits are now connected to each other, some of the outlet oil is allowed to flow to the inlet side. The operation of the swing circuit is more precise with this connection.Note: When the fine swing control switch is ON, the swing brake is OFF.
Caterpillar parts catalog:
Parts harness Caterpillar catalog:
1343326
HARNESS AS-LIGHTING
307B, 307C, 307D
307B, 307C, 307D
3254331
HARNESS AS-LIGHTING
307C, 307D
307C, 307D
1864575
HARNESS AS-FRONT LIGHTING
303, 304, 305, 307C, 307D, 311C
303, 304, 305, 307C, 307D, 311C
3254859
HARNESS AS-LIGHTING
307C, 307D
307C, 307D
3253491
HARNESS AS-SENSOR
305.5, 306, 307D
305.5, 306, 307D
3280021
HARNESS AS-CONSOLE
307D, 308D, 311D LRR, 312D, 312D L, 312D2, 312D2 GC, 313D, 313D2, 314D CR, 314D LCR, 315D L, 318D L, 318D2 L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, ...
307D, 308D, 311D LRR, 312D, 312D L, 312D2, 312D2 GC, 313D, 313D2, 314D CR, 314D LCR, 315D L, 318D L, 318D2 L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, ...
2757191
HARNESS AS-SWITCH
307D, 308D, 311D LRR, 314D CR, 314D LCR, 321D LCR, 328D LCR
307D, 308D, 311D LRR, 314D CR, 314D LCR, 321D LCR, 328D LCR
3615876
HARNESS AS-PANEL
307D, 308D
307D, 308D
3228777
HARNESS AS-PANEL
307D, 308D
307D, 308D
3280021
HARNESS AS-CONSOLE
307D, 308D, 311D LRR, 312D, 312D L, 312D2, 312D2 GC, 313D, 313D2, 314D CR, 314D LCR, 315D L, 318D L, 318D2 L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, ...
307D, 308D, 311D LRR, 312D, 312D L, 312D2, 312D2 GC, 313D, 313D2, 314D CR, 314D LCR, 315D L, 318D L, 318D2 L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, ...
2510543
HARNESS AS-CONSOLE
307D, 308D, 311D LRR, 312D, 312D L, 314D LCR, 315D L, 319D, 320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D LRR, 320D RR, 321D LCR, 323D L, 323D LN, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, ...
307D, 308D, 311D LRR, 312D, 312D L, 314D LCR, 315D L, 319D, 320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D LRR, 320D RR, 321D LCR, 323D L, 323D LN, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, ...