New Hydraulic Accumulator Assembly Procedure Increases Service Life {5077}
Usage:
All Caterpillar Machines with Caterpillar-built Accumulators
A process change to lubricate piston seal assemblies in all Caterpillar-built Accumulators has gone into effect. The Seal Assemblies (Item A) on Pistons (Item B) are now lubricated with hydraulic oil at the time of initial accumulator assembly. During rebuild of the accumulator, the dealer is responsible for lubricating the seal with hydraulic oil. This will ensure that the seal is properly lubricated and adds reliability and service life to the seal assembly.
Illustration.
Typical Caterpillar-built Accumulator.
Caterpillar Information System:
1999/10/25 Improved Pump Mounting Increases Hub Retention {3203}
1999/10/25 New Lift Cylinder Eliminates Piston Bolt Loosening {5102,5951}
1999/10/18 Correction To The Converter Outlet Pressure {3030,3101}
1999/10/18 Correction To Braking System Specifications Module, RENR2510 {4269}
1999/10/18 Corrections To 994 Wheel Loader Parts Manual SEBP1920-07 {0374,5056}
1999/10/18 Test Harness For Power Train Electronic Control Module (ECM) {1408}
1999/10/18 New Turbocharger Group Includes A Stronger Compressor Wheel {1052}
1999/10/18 Flash Software Now Available {7620}
1999/10/11 Lubrication Of The Drive Shaft Spline {3251,3253}
1999/10/11 Improved Fuel Water Separator Reduces Plugging Of The Fuel Priming Pump {1258,1260,1263}
1999/10/11 New Clip Used On Hydraulic Tank Fill Tube {5056}
1999/10/11 Back Tilt Knob Kit Now Available {7324,7321}
1999/10/25 New Flywheel Housing Gasket For 3408 And 3412 Machine Engines {1152}
1999/11/01 Special Instruction For Installing New Air Suspension Seat And Wiring Is Available {0374,1408,7324}
1999/11/01 Special Instruction, REHS0434-02, Is Available {0374,6800}
1999/11/01 New Plates On Accumulator Support Provide Longer Service Life {5077,7107}
1999/11/01 Seals Used In Charge Pumps Are Now Serviced {3203}
1999/11/01 Correction To Disassembly And Assembly, Machine Systems, 992G Wheel Loader, SENR5893-01 {0374,6107}
1999/11/01 Customer Site License And Annual Subscriptions For VIMSpc99 Software Available {7601}
1999/11/01 Schematic Available For 994D Wheel Loaders {7601,7566}
1999/11/01 New ROPS Canopy Has Higher Gross Machine Weight Certification {7323}
1999/11/01 Improved Hydraulic Line For Pilot Control Increases Service Life {5057}
1999/11/01 Improved Corrosion Protection For Reman Major Components {3100,3150,4059}
1999/11/01 138-8440 Component Cleaner May Damage Electrical Connectors {0644}