1978/05/22 Caterpillar

Optional Assembly Procedure For Sperry Vickers Pumps With New Type Cartridges{5055}

Usage:

All Caterpillar Products With Sperry Vickers Vane-Type Pumps

Because there are no alignment pins through the new type cartridge used in Sperry Vickers vane-type hydraulic pumps, a special assembly procedure must be used.

NOTE: If the cartridge parts are not in alignment, it will not be possible to install the pump cover and body.

There are two procedures which can be used to assemble the cartridges. Special Instruction Form SMHS7047, "Special Disassembly and Assembly Procedures For Sperry Vickers Pumps With New Type Cartridges", gives one assembly procedure. In this procedure, alignment marks are put across the outer surface of the cartridge parts for reference and the pump cover is used to put the cartridge in alignment.

Sperry Vickers now has an optional procedure to use to be sure the cartridge parts (three sections) are in alignment before installation into the pump body. With all the marks in alignment, put the three sections in a V-block to get the three sections in correct alignment. Tighten the screws to the correct torque specification, and again check the alignment of the cartridge. Install the necessary O-ring seals and back-up rings. Install the cartridge and cover. Tighten the cover bolts to the correct torque specification.

Make a note of this optional method in your copy of Special Instruction Form SMHS7047 because a revision will not be made.

Caterpillar Information System:

1978/05/22 Use New Tools To Adapt Former Cylinder Heads With Counterbores To Cylinder Blocks With Spacer Plates{0600,1100,1101,1201}

1978/05/22 New Gasket Installed Between Flywheel Housing And Cylinder Block{1157,1201}

1978/05/15 Stronger Fuel Inlet Flanges Prevent Parts Damage And Keeps Air Out Of The Fuel System{1253}

1978/05/15 New Drive Belt Idler Pulleys Have Larger Bearings{1358,1359}

1978/05/15 Silicone Grease Now Used In Seal Ring Groove In Turbochargers{1052,1053,1077}

1978/05/15 Explanation Of Nomenclature Used In Engine Performance{1000,0374}

1978/05/15 Parts Information For Vickers Pumps Which Have Steel Backed Bronze Plates Between Rotor And End Plates{5055}

1978/05/08 Preparation Of Caterpillar Product For Delivery{7500}

1978/05/08 Threads In Aluminum Housings On Hydraulic Pumps Can Be Damaged, If Bolts That Are Too Short Are Used{5073}

1978/05/08 Coolant Syringe And Battery Fluid Probe Now Available{0651}

1978/05/08 Timing Dimension For Fuel Injection Pumps Changed; 1P7410 Timing Plates Have More Exact Degree Marks{0650,1250}

1978/05/08 Longer Hoses Used At Radiator Lower Hose Connections{1380}

1978/05/22 Modification Of Drive Adapter For Fuel Injection Test Bench{0650,1272}

1978/05/22 New Governor Spring Gives Correct Balance Point Speed{1264}

1978/05/29 Attachment Groups Put Corrosion Inhibitor Directly Into Cooling System{1350}

1978/05/29 5P9722 Driver Needed To Install New Seal Assembly In Water Pumps{0622,1361}

1978/05/29 A New Exhaust Manifold And Fuel Pump Heat Shield Is Used On Industrial Engines That Have A Woodward Governor With An Electric Motor{1059,1250,1289}

1978/06/05 Procedures And Cautions For Use Of A Flex-Hone On 3204 And 3208 Engines{1201}

1978/06/05 Information Plate Installed On BrakeSaver Housing{1155}

1978/06/12 Use New Main Bearings In Replacement Cylinder Blocks{1203,1201}

1978/06/12 New Crankshaft Damper Assembly For 3306 Vehicular Engines Gives Longer Service Life{1205}

1978/06/12 5P8626 Tool Bit Available To Machine The 5P6595 And 5P8607 Liner Seat Inserts{0664}

1978/06/12 Clip Added To Compressor Lines Group To Keep Oil Line Away From Exhaust Manifold{1307,1065}

1978/06/12 New Vibration Damper Has Stronger Mounting Flange To Prevent Possible Cracks{1205}