Check Operation Of Hydramechanical Shutoff At Specific Intervals{7418,7525}
Usage:
D379 ( 68B );
D398 ( 66B );
D399 ( 35B ) Industrial Engines
The hydramechanical shutoff used on the above engines can prevent engine damage if there is loss of oil pressure, high coolant temperature, or an engine overspeed.
It is Caterpillar's recommendation that the operation of the shutoff be checked every 500 service hours or every three months.
To check the operation of the hydramechanical shutoff, pull the emergency manual shutoff knob. This will activate both the rack shutoff and the air inlet shutoffs. Be sure to reset the inlet air shutoffs on the right and left sides of the engine before it is started again.
Caterpillar Information System:
1981/04/13 New Ahead Main Shaft Assembly Gives A Tighter Fit; Dimensions For The Fit Of Shafts And Gears{3300}
1981/04/13 Use Two Wrenches On Fuel Line Nuts{1254,1252}
1981/04/13 New 6V3060 EGR System Tester Group Available{1080}
1981/04/13 Use 6V4058 Universal Extension To Remove And Install Starter Bolts{0612}
1981/04/06 Improve Use Of Engine Service Manual Microfiche{0374}
1981/04/06 New Piston Ring Assemblies Give Improved Ring And Cylinder Liner Life{1215,1213}
1981/04/06 Correct Refill Capacity For Engine Oil{1318}
1981/04/06 Cooling System Cleaner Removes Rust And Corrosion{1350,1353,1354}
1981/04/06 Use Heat-Indication Products To Measure Parts Temperatures{0651}
1981/04/06 New Temperature Range Recommendation For Multi-Viscosity Oil In Power Shift Transmissions{3179,3155,3159}
1981/04/06 New Spacer And Plate Used In Transmission Lower Shaft Groups{3307}
1981/04/06 Woodward Governor Available For Parallel Generator Applications{1289,1264}
1981/04/13 FT1585 Plate Can Be Fabricated For Governor Spring Guide Replacement{0626}
1981/04/13 Correct Installation Of Seal Spacer In Gear-Type Hydraulic Pumps{5073}
1981/04/20 Different Check Valve Gives Faster Shifts{3313}
1981/04/20 Storage Compartments For Maintenance (Lubrication And Maintenance) Guides{7312}
1981/04/20 6V4020 Piston Ring Expander Group Available{0622,1215,1214}
1981/04/20 Use 6V4173 Clamping Bar Group On Hydraulic Hose Press{0624}
1981/04/20 Stronger Fitting Used With Sending Unit For Oil Pressure Gauge{7457,7451,3310,3314}
1981/04/27 Use 6V4089 Reamer Assembly To Clean Nozzle Bores{0622}
1981/04/27 Replacement Thermostat, Element Assemblies Available For Jacket Water Heater{1383}
1981/04/27 Fuel Injection Test Bench Specification Sheets Changed{0652}
1981/04/27 Special Instruction Available For The Use Of The 6V4040 Nitrogen Tire Inflation Group{4203,0374}
1981/05/04 Larger Valve Springs{1108,1101,1252}