1979/09/24 Caterpillar

Cranking Speeds Necessary To Start Diesel Engines{0374,1000,1450}

Usage:

All Caterpillar Diesel Engines

Generally, the cranking speed needed to start Caterpillar diesel engines is in the range of 100-120 RPM. When warm, the engines will start at a lower cranking speed. In cold temperatures, battery, starting motor, glow plugs, oil viscosity, starting aids (ether, jacket water heater) and type of fuel used have an effect on how rapidly the engine will start. At all times, the engine must be in good condition to start at the normal cranking speed.

For more details see: The Operation, Lubrication And Maintenance Guide-"Cold Weather Operation", Form No. SEBU5338-02, 7/79; Special Instruction-"Installation, Operation And Maintenance Of 9N3771 Injection Group (Cetane)", Form SEHS7253; the article, "Preparation Of Truck Engines For Cold Weather Operation" in the Service Magazine, October 17, 1977, page 2 and Supplement in the Service Magazine, December 5, 1977, page 8; also, the article, "Important Cold Weather Recommendations For Series 'G' Motor Graders" in the Service Magazine, November 14, 1977, page 2.

Caterpillar Information System:

1979/09/24 8S9901 Tool Cart Can Be Adapted To Hold Both The 5P3600 Hydraulic Flow Meter Group And The Tools Used With It{0651}

1979/09/17 6V2042 Alignment Yoke And 6V2043 Alignment Bar Available{0653,3305,4450}

1979/09/17 New Bracket Available For Installation Of Jacket Water Heater{1383}

1979/09/17 Improved Sea Water Pump Now Used{1361,1371}

1979/09/17 Raw Water Pump Improved{1371}

1979/09/17 Keystone Piston Groups Can Be Installed In Earlier Engines In Steiger Tractors{1214,1215}

1979/09/17 New BrakeSaver Control Valve Group Has Improved Diaphragm{1159,1155}

1979/09/17 New Main And Connecting Rod Bearings Have A Thicker Layer Of Surface Material{1230,1203,1219}

1979/09/10 Engines Can Use Crankshafts With Either Six Or Eight Counterweights {1202}

1979/09/10 Pin Bore Is Now Offset (Not In The Center) .059" (1.5 mm) In The Piston To Stop Vibration Of The Cylinder Liners Which Can Cause Pitting On The Coolant Side Of The Cylinder Liners {1214,1216}

1979/09/10 Tee Handle Hexagonal Wrench In Rack Adjusting Tool Is Now Available For Parts Replacement

1979/09/10 Recommendation For Use Of A FLEX-HONE On 1100, 3100 and 3200 Series Engines {1201}

1979/10/01 New Liner Seat Inserts For Spacer Plate Cylinder Blocks Are Made Of Stainless Steel{1217,1201,0663}

1979/10/01 Steel Plates Are Now Used To Hold The Element In Position In The Panel-Type Air Cleaner Housing Assembly{1051,1054}

1979/10/01 Tips For SIRS (Service Information Retrieval System) Users{0374}

1979/10/01 New Aftercooler Core Has Stronger Construction And Corrosion Resistance{1064}

1979/10/01 New Planet Gears For Power Shift Transmissions And/Or Winches Have No Oil Grooves On the Faces{3176,5165}

1979/10/08 Warning: Excessive Heat Can Cause A Tire Explosion{4203}

1979/10/08 Fast Fuel Delivery Couplings And Fast Oil Change Couplings Are Available For All Caterpillar Equipment{0671,1273,1279,1325}

1979/10/08 New Hydromechanical Shut-Off Is Available{7418,7403}

1979/10/08 Supplement To Special Instruction, Form SEHS6895, "Bench Testing Hydraulic Components" Now Available On Microfiche{0650}

1979/10/15 Engine Oil Viscosity Changed To SAE 10W/30 For Shipment From All U.S. Factories{1318}

1979/10/15 New Camshaft Housing Gasket Has Increased Resistance To High Temperature{1113}

1979/10/22 Use The FT1482 Stop Collar Assembly With The 1P4000 Line Boring Tool Group{0663}