AVSPARE.COM
parts catalog

BRACKET AS 3904909 - Caterpillar



3904909 BRACKET AS Caterpillar parts C15 I6, C18 I6 BRACKET
Rating:
18
Alternative (cross code) number:
CA3904909
390-4909
3904909
Caterpillar 3904909 BRACKET AS
Weight: 11 pounds 5 kg.

Buy BRACKET AS 3904909 Caterpillar genuine, new aftermarket tractor parts with delivery
GENERATOR SET,

Compatible equipment models: 3904909:

GENERATOR SET  C15 I6   C18 I6   Caterpillar
Number on catalog scheme: 1
 
  For full view, you need register

Information:


Illustration 1 g02479018
Pressure circuit for SWING RIGHT (partial schematic - with fine swing)
(1) Passage (supply oil)
(2) Makeup port
(3) Relief valve
(4) Passage
(5) Motor rotary group
(6) Swing motor
(7) Passage (return oil)
(8) Relief valve
(9) Passage
(10) Makeup line
(11) Check valve
(12) Port (supply oil)
(13) Port (return oil)
(14) Check valve
(15) Check valve
(16) Return line
(17) Swing control valve
(18) Slow return check valve
(19) Return line
Illustration 2 g02479136
Pressure circuit for SWING RIGHT (partial schematic - without fine swing)
(1) Passage (supply oil)
(2) Makeup port
(3) Relief valve
(4) Passage
(5) Motor rotary group
(6) Swing motor
(7) Passage (return oil)
(8) Relief valve
(9) Passage
(10) Makeup line
(11) Check valve
(12) Port (supply oil)
(13) Port (return oil)
(14) Check valve
(15) Check valve
(16) Return line
(17) Swing control valve
(18) Slow return check valve
(19) Return line When the swing joystick is moved to the NEUTRAL position during the swing right operation, the swing control valve shifts to the NEUTRAL position. Since the swing control valve is in the NEUTRAL position, the oil delivery is blocked at the swing control valve. The return oil from the motor rotary group through port (13) is also blocked at the swing control valve. The upper structure will attempt to continue to rotate after the swing joystick is returned to the NEUTRAL position. This action causes an internal leak of oil in the swing motor. As a result, a vacuum condition occurs at passage (1). In order to prevent this vacuum condition, makeup oil is delivered from the return hydraulic system to the swing motor.
Illustration 3 g00850298
(10) Makeup line
(18) Slow return check valve
(19) Return line
Illustration 4 g01231308
Slow return check valve
(10) Makeup line
(16) Return line
(18) Slow return check valve
(19) Return line When all of the control valves for implements, swing and travel are in the NEUTRAL position, the oil delivery from the idler pump and the drive pump flows through return line (16) to the hydraulic tank. Slow return check valve (18) is located between return line (16) and the hydraulic tank. Slow return check valve (18) maintains the return oil pressure at 290 kPa (42 psi) in return line (16). A vacuum condition occurs at the swing motor during the stop of a swing operation. The slow return check valve causes return oil from return line (16) to flow to motor rotary group (5) as makeup oil. The slow return check valve eliminates the vacuum condition in the swing motor due to internal leakage.If the swing joystick is moved suddenly toward the NEUTRAL position from the FULL STROKE position, the swing control valve partially closes. Until the swing control valve reaches the NEUTRAL position, the return oil from the swing motor continues to flow through passage (7) and port (13) to return line (16). The return oil pressure in passage (7) increases, but remains lower than the pressure setting of swing relief valve (8). Swing relief valve (8)

Caterpillar parts catalog:

Caterpillar parts catalog
C13 Generator Set KJE00001-UP
C15 I6 Generator Set T3300001-UP
C13 Generator Set T3200001-UP
C15 Lean I6 Generator Set NAP00001-UP
C18 Lean I6 Generator Set NAW00001-UP
C18 Generator Set T3400001-UP


Parts bracket Caterpillar catalog:

1152353 BRACKET-TUBE
16G, 16H NA, 3406B, 3406C, 3406E, 3456, 583T, 587T, 621B, 621E, 621F, 621G, 623E, 623F, 623G, 627E, 627F, 627G, 814B, 824C, 824G, 825G, 826C, 826G, 980C, 980F, 980G, AD30, C-15, C-16, C15, C15 I6, C16...
3718146 BRACKET
3406C, C15, C15 I6, C18, C18 I6, C9
2881023 BRACKET-SUPPORT
16M, 24M, 824H, 825H, 826H, 834H, 836H, 980G, 980H, 988H, C11, C13, C15, C15 I6, C18, C18 I6, CX31-C13I, RM-500
3458404 BRACKET-SUPPORT
C15, C15 I6, C18, CX31-C18I, CX35-C18I
4253590 BRACKET
C15 I6, C18 I6
3745715 BRACKET
C15 I6, C18 I6
4162065 BRACKET
C15 I6, C18 I6
4162062 BRACKET
C15 I6, C18 I6
3904911 BRACKET
C15 I6, C18 I6, C9
3904923 BRACKET
C15 I6, C18 I6, C9
4183955 BRACKET
C15 I6, C18 I6, C9
4183953 BRACKET
C15 I6, C18 I6
4169018 BRACKET
C15 I6, C18 I6, C9
Back to top
The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.