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PUMP GP-WATER 3844520 - Caterpillar


3844520 PUMP GP-WATER Caterpillar parts 986H, C18


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Alternative (cross code) number:
CA3844520
384-4520
3844520
Caterpillar 3844520 PUMP GP-WATER

Buy PUMP GP-WATER 3844520 Caterpillar genuine, new aftermarket tractor parts with delivery
GENERATOR SET, WHEEL LOADER,

Compatible equipment models: 3844520:

GENERATOR SET  C18  
MARINE ENGINE 
WHEEL LOADER  986H   Caterpillar
Number on catalog scheme:
Caterpillar 3844520 Parts scheme PUMP GP-WATER
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Information:


Illustration 2 g01332901
Pressure and Flow Compensator Valve
(11) Pump pressure passage
(12) Pump control valve
(13) Cutoff valve adjustment screw
(14) Cutoff spring
(15) Cutoff spool
(16) Margin spool adjustment
(17) Margin spring
(18) Load sensing port
(19) Margin spool
(20) Case drain passage
(21) Signal passage to the actuator pistonPump control valve (12) is mounted to the brake and the hydraulic fan pump. Pump control valve (12) contains two spools. Margin spool (19) regulates the pump output flow in response to load sensing port (18). Cutoff spool (15) protects the pump from high pressures.Pump control valve (12) maintains the correct pressure and correct oil flow. The pump is controlled by either sending pump oil to actuator piston (9) or by draining the pump oil from actuator piston (9).Actuator piston (9) and bias spring (7) work together in order to adjust the angle of swashplate (2). Pump control valve (12) prevents overloading of the pump.Pump Destroke
Illustration 3 g01332919
Piston Pump in Destroke
(2) Swashplate
(7) Bias spring
(9) Actuator piston
(11) Pump pressure passage
(15) Cutoff spool
(17) Margin spring
(18) Load sensing port
(19) Margin spool
(20) Case drain passage
(21) Signal passage to the actuator pistonWhen the hydraulic system requires a reduction in flow, a reduced signal is sent to load sensing port (18).High-pressure oil flows to margin spool (19) through pump pressure passage (11). When the pressure against margin spool (19) overcomes the force of both load sensing port (18) and margin spring (17), margin spool (19) will begin to move.The oil will flow around the margin spool (19). Oil will flow to actuator piston (9).When the oil pressure behind actuator piston (9) is sufficient, the piston will start to move. The piston rod will push swashplate (2) against bias spring (7). Swashplate (2) will overcome bias spring (7). The swashplate (2) will move to a minimal angle. The piston pump will be destroked.Pump Upstroke
Illustration 4 g01332923
Pump Upstroke
(2) Swashplate
(7) Bias spring
(9) Actuator piston
(11) Pump pressure passage
(15) Cutoff spool
(17) Margin spring
(18) Load sensing port
(19) Margin spool
(20) Case drain passage
(21) Signal

Caterpillar SIS machinery equipment:

Caterpillar SIS
C18 Marine Generator Set SSM00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Generator Set SSW00001-UP » 384-4520 PUMP GP-WATER
986 Wheel Loader 98600001-UP (MACHINE) POWERED BY C15 Engine » 384-4520 PUMP GP-WATER
986K Wheel Loader NL800001-UP (MACHINE) POWERED BY C15 Engine » 384-4520 PUMP GP-WATER
C18 Marine Engine GES00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Engine J2K00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Engine JKX00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Generator Set JHL00001-UP » 384-4520 PUMP GP-WATER
C18 Marine SCAC Generator Set DTP00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Auxiliary Generator Set GBM00001-UP POWERED BY C18 Engine » 384-4520 PUMP GP-WATER
986H Wheel Loader L8S00001-UP (MACHINE) POWERED BY C15 Engine » 384-4520 PUMP GP-WATER
C18 Marine Engine TNA00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Engine T2R00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Engine GEX00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Engine JLE00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Engine GTB00001-UP » 384-4520 PUMP GP-WATER
C18 Marine Mechanical Package GEX00001-UP » 384-4520 PUMP GP-WATER

Caterpillar parts catalog:

Caterpillar parts catalog
C18 Marine Generator Set SSM00001-UP
C18 Marine Generator Set SSW00001-UP
C18 Marine Engine GES00001-UP
C18 Marine Engine J2K00001-UP
C18 Marine Engine JKX00001-UP
C18 Marine Generator Set JHL00001-UP
C18 Marine SCAC Generator Set DTP00001-UP
C18 Marine Auxiliary Generator Set GBM00001-UP POWERED BY C18 Engine
C18 Marine Engine TNA00001-UP
C18 Marine Engine T2R00001-UP
C18 Marine Engine GEX00001-UP
C18 Marine Engine JLE00001-UP
C18 Marine Engine GTB00001-UP
C18 Marine Mechanical Package GEX00001-UP
986K Wheel Loader NL800001-UP (MACHINE) POWERED BY C15 Engine
986 Wheel Loader 98600001-UP (MACHINE) POWERED BY C15 Engine
986H Wheel Loader L8S00001-UP (MACHINE) POWERED BY C15 Engine


Parts pump Caterpillar catalog:

1745986 PUMP GP-WATER
24M, 3456, 583T, 587T, 621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 651B, 657E, 657G, 770, 772, 824C, 824G, 824G II, 824H, 825G II, 825H, 826G II, 826H, 834G, 834H, 836G,...
3520211 PUMP GP-WATER
24M, 3456, 583T, 587T, 621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 651B, 657E, 657G, 770, 772, 824C, 824G, 824G II, 824H, 825G II, 825H, 826G II, 826H, 834G, 834H, 836G,...
3848612 PUMP GP-FUEL TRANSFER
14M, 24M, 3406E, 3456, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 3512, 365C, 365C L, 365C L MH, 374D L, 374F L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 5090B, 583T, 5...
2765906 PUMP GP-AUXILIARY SEA WATER
3406E, C-15, C15, C18, G3516C
1614113 PUMP GP-ENGINE OIL
24M, 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3456, 583T, 587T, 621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 651B, 657B, 657E, 657G, 735, 735B, 740, 740B, 770, 770G, 770G...
3911387 PUMP GP-FUEL INJECTION
C18
1375541 PUMP GP-FUEL PRIMING
120G, 12G, 130G, 140G, 140H, 143H, 14G, 14H, 160G, 160H, 163H, 1673C, 16H, 235B, 24H, 3116, 311C, 311D LRR, 3126, 3126B, 3126E, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315C, 315D L,...
2908866 PUMP GP-FUEL TFR & PRIMING
3406E, 3456, C13, C15, C18, D8R II, PM3456, TH35-C13T
3887286 PUMP GP-FUEL TRANSFER
349E, 349E L, 349E L HVG, 349E L VG, 349F L, 374F L, 621H, 621K, 623H, 623K, 627H, 627K, 730C, 980K, 980K HLG, 980M, 982M, C18
7T8890 PUMP AS WASHER
120M, 120M 2, 12M, 140M, 140M 2, 14M, 160M, 160M 2, 16M, 215B, 215C, 215D, 219D, 225, 225D, 227, 229, 229D, 231D, 235B, 235C, 235D, 245, 245B, 245D, 311B, 311D LRR, 312, 312B L, 312C L, 312D, 312D L, ...
2153013 PUMP GP-GEAR
938G, 938G II, 950H, 962H, 980G II, 980H, 986H, 990 II, IT38G, IT38G II, IT62H
3496093 PUMP GP-METERING
950H, 950K, 962H, 962K, 966H, 972H, 986H, IT62H
3231080 PUMP GP-PISTON
CB-54, CB-64
3182590 PUMP GP-GEAR
770G, 770G OEM, 772G, 772G OEM
4208857 PUMP GP-FUEL INJECTION
906H2, 907H2, 908H2
2430103 PUMP GP-PISTON
HA771, HA871, TK371, TK381
3190674 PUMP GP-UNIT INJECTOR HYD
C7
8G4174 PUMP & LINES GP
973
3972650 PUMP GP-WATER
301.7D, 301.7D CR, 302.2D, 302.4D
1N3299 PUMP GP-SUMP
3406B, 3408
1U2091 PUMP GP-GEAR
578, 583R, 589
1656767 PUMP GP-PISTON
D350E II, D400E II
2202674 PUMP GP-ENGINE OIL
416D, 420D, 428D, 430D, 432D, 438D, 442D
1487192 PUMP GP-WATER
3056
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