611 Wheel Tractor-Scraper Hydraulic System Piston Pump (Axle Suspension) Caterpillar


Piston Pump (Axle Suspension)
`
1.1. 4T-1909 Pump Control Valve



Illustration 1g01021202

Note: The following specifications are for a bench test. The specifications for a pump that is tested on the machine may be different.

The rotation of the shaft is clockwise when the rotation of the shaft is viewed from the drive end.

When you perform the test, use SAE 10W at 65°C (150°F).

Test at full speed:

Output ... 40.5 L/min (10.70 US gpm)
Pressure ... 690 kPa (100 psi)
Pump speed ... 2200 rpm
Engine speed ... 2200 rpm
Output ... 39.7 L/min (10.49 US gpm)
Pressure ... 6900 kPa (1000 psi)
Pump speed ... 2200 rpm
Engine speed ... 2200 rpm

Test at half speed:

Output ... 20.3 L/min (5.36 US gpm)
Pressure ... 690 kPa (100 psi)
Pump speed ... 1100 rpm
Engine speed ... 1100 rpm
Output ... 19.9 L/min (5.26 US gpm)
Pressure ... 6900 kPa (1000 psi)
Pump speed ... 1100 rpm
Engine speed ... 1100 rpm

(1) Torque for four screws ... 23 ± 2.0 N·m (17 ± 1.5 lb ft)

(2) Pump Control valve for the axle suspension pump

(3) Torque for the guide pin ... 9.5 ± 1.5 N·m (85 ± 13 lb in)

Prior to assembly, apply 4C-4030 Thread Lock Compound to the threads of guide pin (3) .

(4) 4T-1916 Spring

Test length ... 42.06 mm (1.656 inch)
Test force ... 65.0 ± 6.5 N (15 ± 1.5 lb)
Free length after test ... 54.1 mm (2.13 inch)
Outside diameter ... 18.42 mm (0.725 inch)

(7) 9T-4541 Spring

Test length ... 24.2 mm (0.95 inch)
Test force ... 315 ± 32 N (71 ± 7 lb)
Free length after test ... 41.17 mm (1.621 inch)
Outside diameter ... 27.76 mm (1.093 inch)

(8) Torque for four bolts ... 38 ± 4 N·m (28 ± 3 lb ft)

(A) Depth of needle bearing (6) ... 0.80 ± 0.40 mm (0.032 ± 0.016 inch)

Note: The bearing must be installed with the numbered end outward.

(B) Depth of needle bearing (5) ... 1.96 ± 0.38 mm (0.077 ± 0.015 inch)

Note: The bearing must be installed with the numbered end outward.

4T-1909 Pump Control Valve




Illustration 2g00013108

Pressure setting of the pump control valve ... 16000 ± 345 kPa (2300 ± 50 psi)

(1) 3G-5423 Spring

Test length ... 34.11 mm (1.343 inch)
Test force ... 560 ± 60 N (125 ± 13 lb)
Free length after test ... 39.80 mm (1.567 inch)
Outside diameter ... 16.08 mm (0.633 inch)

(2) Torque for nut ... 9 ± 1 N·m (80 ± 9 lb in)

Note: When you tighten nut (2), hold setscrew (3) .

Information System:

611 and 615C Series II Wheel Tractor-Scrapers Steering System Steering Control Valve
Installation Of 3Y6693 Regulator Used With 3Y6880 Conversion Kit{1400}
PRODUCT SUPPORT PROGRAM FOR INSPECTING AND INSTALLING THE 4N8150 SPRING AND 3929208 PLUNGER IN THE ENGINE OIL FILTER BASE 4734860 ON CERTAIN AD30 UNDERGROUND ARTICULATED TRUCKS
PRODUCT IMPROVEMENT PROGRAM FOR APPLYING THE PROPER TIGHTENING TO THE MOUNTING BOLTS FOR THE HYSTAT MOTORS ON CERTAIN 926M, 930M, AND 938M SMALL WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING PRIMARY AND SECONDARY ENGINE FILTER ELEMENTS ON CERTAIN MD6250 ROTARY BLASTHOLE DRILLS
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE ENGINE BLOCK FOR COOLANT LEAKS ON CERTAIN 415, 416, 420, 428, 430, 432, 434, AND 444 BACKHOE LOADERS, 910, 914, AND 920 COMPACT WHEEL LOADERS, D1, D2, AND D3 TRACK-TYPE TRACTORS, 313, 315, AND 317 EXCAVA
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE 5117975 FUEL PUMP ON CERTAIN C9.3 REMAN 20R4509, 20R5307, 20R6190, AND 20R6192 LONG BLOCKS, 20R7002, AND 20R7003 REMAN ENGINES IN DEALER PARTS STOCK
PRODUCT IMPROVEMENT PROGRAM INSPECTING AND POSSIBLY REWORKING CERTAIN 20R6551 C15 REMAN ENGINES IN DEALER PART STOCK
PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN 9U-7763 PULLER STUDS FROM DEALER TOOL INVENTORY AND CUSTOMER TOOL INVENTORY, AND DEALER AND CUSTOMER SERVICE FACILITIES
PRODUCT SUPPORT PROGRAM FOR REPLACING PRODUCT LINK PL121, PL321, PL542 SATELITE RADIOS ON CERTAIN CATERPILLAR PRODUCTS
PRODUCT IMPROVEMENT PROGRAM FOR TESTING AND ADJUSTING THE LOAD CHECK VALVES ON CERTAIN 924K, 930K, 938K, 926M, 930M, AND 938M SMALL WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE LINKAGE PIN RETAINERS ON CERTAIN 966M AND 980M MEDIUM WHEEL LOADERS
615C Series II Wheel Tractor-Scraper Hydraulic System Elevator Frame
615C Series II Wheel Tractor-Scraper Hydraulic System Elevator Speed Reducer
834B and 836 Landfill Compactor Safety Signs and Labels
515 Wheel Skidder and 525 Wheel Skidder General Hazard Information
834B and 836 Landfill Compactor Model View Illustrations
834B and 836 Landfill Compactor Product Identification Number, Serial Number and EU's CE Plate Locations
834B and 836 Landfill Compactor Electronic Monitoring System (EMS)
834B and 836 Landfill Compactor Gauges
834B and 836 Landfill Compactor Parking Brake Manual Release
966G and 972G Wheel Loaders Tire Inflation with Nitrogen
834B and 836 Landfill Compactor Light Switches
834B and 836 Landfill Compactor Backup Alarm