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BRAKE GP-HYD CALIPER SERVICE 3479761 - Caterpillar


3479761 BRAKE GP-HYD CALIPER SERVICE Caterpillar parts 725, 725C, 730, 730C, D250E II, D300E, D300E II
Rating:
61
Alternative (cross code) number:
CA3479761
347-9761
3479761
Caterpillar 3479761 BRAKE GP-HYD CALIPER SERVICE
Weight: 104 pounds 47 kg.

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02 Oct 2017

BLQ: BLQ
3479761 BRAKE GP
3479761 BRAKE GP
Number on catalog scheme: 23
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Compatible equipment models: 3479761:

ARTICULATED TRUCK  725   725C   730   730C   D250E II   D300E   D300E II  
EJECTOR TRUCK  730   730C   Caterpillar

Information:

All 3408 And 3412 Engines Equipped With Hydramechanical GovernorsSERVICE MAGAZINE, OCTOBER 18, 1982, PAGE 1. Some of the information in the article "Changes In Engine RPM; Governor Does Not Operate Correctly" is not correct. Put a mark through that article, and make reference to this article.
Reports show that some of the above engines have had trouble with surges (changes) in engine rpm. It has been found that the cause of this problem in many applications is low oil pressure in the governor hydraulic servo mechanism. The governor servo will operate at low oil pressure, but its action may not be correct. This is because the low oil pressure can not move the rack as rapidly as is necessary. The procedure that follows can be used in troubleshooting the cause of the low oil pressure.
1. Check the governor oil pressure at the fuel transfer pump. See Illustration 1. The specification for the governor oil pressure is 620 to 690 kPa (90 to 100 psi) when the engine rpm is between low and high idle. But, a governor oil pressure of 585 to 760 kPa (85 to 110 psi) is acceptable.2. Check the engine oil pressure. Acceptable oil pressures are 205 25 kPa (30 4 psi) at 800 rpm and 380 35 kPa (55 5 psi) at 2000 rpm.3. If low oil pressures are found in Steps 1 or 2, the cause of these must be found and corrected. Some possible causes are: a. A restriction in the oil flow, such as a plugged orifice in the fuel transfer pump housing. See Illustration 1. This orifice is a passage for oil into the governor oil pump. The diameter of this orifice must be 1.57 mm (.062"). If this diameter is too small, the servo mechanism will not get enough oil.
Illustration 1. Test location for governor oil pressure and location of orifice.b. A failure of the governor oil pump.c. Bypass valve does not operate. The valve may be held open.
Illustration 2. Location of bypass valve and governor oil pump.

Caterpillar SIS machinery equipment:

Caterpillar SIS
D300E Articulated Truck 7FN00001-UP (MACHINE) POWERED BY 3306 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
D250E Series II Articulated Truck 4PS00001-UP (MACHINE) POWERED BY 3306 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
D300E Series II Articulated Truck 5KS00001-00617 (MACHINE) POWERED BY 3306 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
725 Articulated Truck AFX00001-UP (MACHINE) POWERED BY 3176C Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
730 Articulated Truck AGF00001-UP (MACHINE) POWERED BY 3196 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
730 Ejector Articulated Truck B1W00001-UP (MACHINE) POWERED BY C11 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
725 Articulated Truck B1L00001-UP (MACHINE) POWERED BY C11 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
730 Articulated Truck B1M00001-UP (MACHINE) POWERED BY C11 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
730 OEM Articulated Truck WWB00001-UP (MACHINE) POWERED BY C11 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
725 OEM Articulated Truck WWA00001-UP (MACHINE) POWERED BY C11 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
730C Articulated Truck TFF00001-UP (MACHINE) POWERED BY C13 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
730C Ejector Articulated Truck LFH00001-UP (MACHINE) POWERED BY C13 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
725C Articulated Truck LFB00001-UP (MACHINE) POWERED BY C9.3 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
725C Articulated Truck TFB00001-UP (MACHINE) POWERED BY C9.3 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
730C Ejector Articulated Truck TFH00001-UP (MACHINE) POWERED BY C13 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE
730C Articulated Truck LFF00001-UP (MACHINE) POWERED BY C13 Engine » 347-9761 BRAKE GP-HYD CALIPER SERVICE

Caterpillar parts catalog:

Caterpillar parts catalog
725 Articulated Truck AFX00001-UP (MACHINE) POWERED BY 3176C Engine
730 Ejector Articulated Truck B1W00001-UP (MACHINE) POWERED BY C11 Engine
725 Articulated Truck B1L00001-UP (MACHINE) POWERED BY C11 Engine
730 Articulated Truck B1M00001-UP (MACHINE) POWERED BY C11 Engine
730 OEM Articulated Truck WWB00001-UP (MACHINE) POWERED BY C11 Engine
725 OEM Articulated Truck WWA00001-UP (MACHINE) POWERED BY C11 Engine
730C Articulated Truck TFF00001-UP (MACHINE) POWERED BY C13 Engine
730C Ejector Articulated Truck LFH00001-UP (MACHINE) POWERED BY C13 Engine
725C Articulated Truck LFB00001-UP (MACHINE) POWERED BY C9.3 Engine
725C Articulated Truck TFB00001-UP (MACHINE) POWERED BY C9.3 Engine
730C Ejector Articulated Truck TFH00001-UP (MACHINE) POWERED BY C13 Engine
730C Articulated Truck LFF00001-UP (MACHINE) POWERED BY C13 Engine


Parts brake Caterpillar catalog:

1608009 BRAKE GP-PARKING
725, 725C, 730, 730C, 735, 735B, 740, 740B
1607200 BRAKE GP-PARKING
725, 725C, 730, 730C, 735, 735B, 740, 740B
1597596 BRAKE GP-SERVICE
725, 730, D250E II, D300E, D300E II
1394126 BRAKE & PLANETARY GP
2470C, 2570C, 2670C, 2864C, 525B, 525C, 533, 535B, 535C, 543, 545, 545C, 553C, 563C, 573C, 586C, HA770, HA771, HA870, HA871, TK370, TK371, TK380, TK381
8E5275 BRAKE & DIFFERENTIAL DRIVE GP
D6H, D6H II, D6H XL, D6H XR, D6R, D6R II
8D2180 BRAKE GP
14G, 14H, 14H NA
2839987 BRAKE GP-PARKING
824G, 824G II, 824H, 824K, 825G, 825G II, 825H, 825K, 826G, 826G II, 826H, 826K, 980G, 980G II, 980H, 980K, 980K HLG, R1700 II
1120757 BRAKE & PLANETARY GP
950G, 950G II, 950H, 950K, 962G, 962G II, 962H, 962K, IT62G, IT62G II, IT62H
5T3280 BRAKE GP-SERVICE & PARKING
784B, 784C, 785, 785B, 785C
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