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BASE AS 3904903 - Caterpillar



3904903 BASE AS Caterpillar parts C15 I6, C18 I6 BASE
Rating:
8
Alternative (cross code) number:
CA3904903
390-4903
3904903
Caterpillar 3904903 BASE AS

Buy BASE AS 3904903 Caterpillar genuine, new aftermarket tractor parts with delivery
GENERATOR SET,

Compatible equipment models: 3904903:

GENERATOR SET  C15 I6   C18 I6   Caterpillar
Number on catalog scheme: 1
 
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Information:

System Description
Illustration 1 g01230796
Location of the Control Valve (Steering, Decking Blade, and Priority Flow Control Valve)
Illustration 2 g01222294
Control Valve (Steering, Decking Blade, and Priority Flow Control Valve)
Illustration 3 g01222293
Control Valve (Steering, Decking Blade, and Priority Flow Control Valve) (1) Decking blade valve. (2) Steering control valve. (3) Priority flow control valve. (4) Port for secondary steering. (5) Relief valve for the priority flow control valve. The control valve assembly is located on the firewall in front of the cab. Access is gained by removing the panel on the right side of the machine. The control valve assembly includes priority flow control valve (3), decking blade valve (1), and steering control valve (2). Relief valve (5) is part of priority flow control valve (3) .Note: Port (4) is for the secondary steering arrangement.Linkage rods connect steering control valve (2) to the steering wheel. As the operator turns the steering wheel, this causes the spool in steering control valve (2) to route oil to the steering cylinders.The control lever for the decking blade activates solenoids on the decking blade valve. The solenoids allow pilot oil to flow to decking blade valve (1). The control lever of the decking blade controls the functions of the blade. The functions of the blade include lift, lower, and hold functions.System Operation
Illustration 4 g01222334
Priority, Steering, and Decking Blade ValveThe priority valve directs full pump flow to the brake hydraulic circuit in order to charge the accumulators for the brake system before any flow is directed to the other circuits. When the brake accumulators are charged, the priority valve directs pump oil flow to the steering system and the remaining hydraulic circuits.The Illustration 4 shows the steering circuit ACTIVATED. No flow is available to the steering circuit until the brake accumulators are fully charged and the brake priority valve is shifted downward.When the steering control valve is shifted upward, pump flow is directed through the top section of the brake priority valve to the flow compensator valve of the steering system. The pressure shifts the pressure compensator valve upward until the second section from the top is activated. The pump flow goes through the compensator valve to the steering control valve. The steering control valve directs pump flow to the steering cylinders.The steering control valve also directs some of the pump flow through the loop at the lower side of the section and through the primary ball resolver to the top of the flow compensator valve. This pressure plus the spring force push down on the flow compensator valve. Flow through the compensator valve to the steering control valve is metered. The flow is equal to the steering system pressure minus the compensator spring. The signal pressure at the top of the flow compensator is directed through the secondary ball resolvers to the hydraulic pump. The load sensing pressure upstrokes the pump to the desired amount of flow that is needed to make a turn.The flow compensator valve for the steering ensures that the steering system gets flow before any

Caterpillar parts catalog:

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


Parts base Caterpillar catalog:

1761363 BASE GP-OIL FILTER
3406, 3406B, 3406C, 3406E, 3456, 365C, 365C L, 365C L MH, 374D L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 5090B, 623F, 770, 772, C-15, C-16, C-18, C15, C15 I6, C16, C18, CX31-C15I, CX35-...
1544327 BASE GP-OIL FILTER
3406, 3406B, 3406C, 3406E, 3456, C-15, C-16, C15, C15 I6, C18, CX31-C15I, CX35-P800, HT400, MTC835, PM3456, TH35-C15I
3885388 BASE GP-FUEL FILTER
C11, C13, C15, C15 I6, C18 I6
3904900 BASE AS
C15 I6, C18 I6
4193614 BASE-VALVE COVER
24M, 3406E, 3456, 365C, 365C L, 365C L MH, 374D L, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 583T, 587T, 621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 651B, 657B, 65...
1951068 BASE AS-FUEL FILTER
12M, 140M, 160M, 3176C, 3196, 3406C, 345C, 345C L, 345C MH, 345D, 345D L, 349D, 349D L, 365C, 365C L, 365C L MH, 385C, 385C FS, 385C L, 385C L MH, 627H, C-12, C-15, C-16, C-18, C-9, C11, C12, C13, C15...
1726059 BASE GP-OIL FILTER
385C, 390F L, 657E, 657G, 770G, 770G OEM, 772G, 772G OEM, C-18, C15, C18, C18 I6, CX31-C15I, CX31-C18I, CX35-C18I, CX35-P800, TH35-C15I
2386721 BASE
14M, 16M, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 725, 730, 966H, 972H, 980C, C11, C13, CX31-C13I, D8N, R1600H, R1700G, RM-300, TH35-C11I, TH35-C13I, W345C MH
4201527 BASE AS
C15 I6, C18 I6
3932471 BASE AS
C15 I6, C18 I6
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