1998/04/06 Caterpillar

New Line Relief Valve Prevents Seal Failure And Loss Of Line Relief Valve Pressure {5080,5090,5117}

Usage:

5130 (5ZL),
5130B (4CS),
5230 (7LL) Excavators;
5130B (4CS) Front Shovels;

Description of Change: A new relief valve replaced the former relief valve. The new relief valve, part of the control valve, is used for head and rod end circuits identified in Illustrations 1, 2, and 3.

The makeup section, of the former relief valve, could rotate or spin relative to the relief section. Rotation or spin would damage the O-ring seal and backup ring between the two sections, causing lowering or loss of relief valve pressure. The new relief valve prevents rotation, spin, and loss of pressure.

Adaptable To: The new 153-3004 Relief Valve Group (1) replaces the former 127-5652 Relief Valve Group in all applications.

NOTE: The new 153-3004 Relief Valve (1) cannot be used to replace the 9T-8316 Relief Valve Group (Line and Makeup), in any application.

Illustration 1.
5130 (5ZL81-Up) Excavators

(1) New 153-3004 Relief Valve Group.

(D) 105-2366 Control Valve Group.

(A) Bucket circuit.

(B) Boom circuit.

(C) Stick circuit.

Illustration 2.
5130B (4CS1-Up) Excavators and Front Shovels

(E) 146-0009 Control Valve Group.

(E) (Excavators only.)

(F) 146-0011 Control Valve Group. (Front shovels only.)

(A) Bucket circuit.

(B) Boom circuit.

(C) Stick circuit.

(1) New 153-3004 Relief Valve Group.

Illustration 3.
5230 (7LL45-Up) Excavators

(G) 111-7442 Control Valve Group.

(K) 107-7500 Control Valve Group.

(A) Bucket circuit.

(B) Boom circuit.

(C) Stick circuit.

(H) Crossover circuit.

(H) Crossover circuit.

(1) New 153-3004 Relief Valve Group.

Caterpillar Information System:

1998/04/06 Magnet Used To Secure Electric Panel Door During VIMS Real Time Analysis Procedure {1417,7301}

1998/04/06 Spools And Valves In The Main Hydraulic Control Valve Are Now Serviceable {5051}

1998/04/06 Support Plates Improve Track Frames {4151,4154}

1998/04/06 New Push Rods In The Pilot Control Valve Improve Service Life {5059,5465,5466}

1998/03/30 Service Interval Change For Balderson/Caterpillar Hydraulic Hammers {5488}

1998/03/30 Use 136-3642 Crimp Tool Group For 4C-9900 And 6V-4900 Presses {5057}

1998/03/30 Use 1U-6189 Lamp Tool For Removal And Installation Of Small Control Panel Bulbs {1400,0709}

1998/03/30 Stronger Injector Hold Down Bolt Used In Fuel Injection Pump Groups {1290}

1998/03/30 Use Measuring Tools For Crimp Diameter {0700}

1998/03/30 Use 137-2700 Bore Welding Group (110V), 138-8215 Bore Welding Group (110V With Auto-Skip), 138-8212 Bore Welding Group (220V) And 138-8213 Bore Welding Group (220V With Auto-Skip) For Building Up Worn Or Damaged Bores {0672}

1998/03/30 Use 9U-6803 Tester For Hydraulic Cylinders {7562}

1998/03/30 Use 7X-1703 Adapter Group For Mounting 7X-1700 Communication Adapter On 8T-8697 ECAP {1900,0781}

1998/04/06 Track Roller Break In And Travel Procedures {4154,4159,4180}

1998/04/06 New Butyl Cab Mount Used To Reduce Cab Vibration {7260}

1998/04/06 Further Improvements To Retention System For Excavator Tips And Couplers {6500,6515,6537,6800}

1998/04/06 Carbody Side Plates Reinforced To Increase Service Life {7062}

1998/04/06 Improved Duct Assembly Enhances Air Conditioning Of Cab {7309,7320}

1998/04/13 New Relief Valve For Main Hydraulic System Improves Maintaining Pressure Setting {5069}

1998/04/13 Correction To Service Manual Modules SENR6059 And SENR1371 {7601,7603}

1998/04/13 Improved Rod In Bottom Dump Cylinder Group For Bucket {5457}

1998/04/20 Optional Valve Spool Kits Are Available For The Pilot Valve Group To Modify The Response Of Implement Controls{5059,5462,5465,5466}

1998/04/20 Improved Ground Engaging Tool (GET) Pin And Retainer Assembly Are Available{6805}

1998/04/20 The Swing Bearing In The Bearing And Gear Group Is Improved{7063,5459}

1998/04/20 Additional Clip In Fuel Injection Lines Groups Helps Secure Advanced Diesel Engine Management (ADEM) I Electronic Control Module (ECM) Fuel Cooling Hose{1252}