Allison Transmission HT 750DR DB Preventive Maintenance

This is the COMPLETE official full preventive maintenance manual for the ALLISON TRANSMISSION HT 750DR DB . A preventive maintenance plan will help you stay on top of maintenance, repairs, and parts replacements so you can prevent equipment failure before it ever happens. Preventive maintenance will also keep your operation running smoothly and efficiently, prolong the life of your equipment, and reduce your overall maintenance costs. Proper service and repair is important to the safe, reliable operation of the equipment. The service procedures recommended by Allison Transmission and described in this handbook are effective methods for performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended. TABLE OF CONTENTS Section I - REMOVING TRANSMISSION FROM VEHICLE Draining Transmission Disconnecting Controls Uncoupling From Driveline And Engine Removing Mounting Bolts Removing The Transmission Removing Input And Output Flange Or Yokes Rebuild/Overhaul Instructions Section II - PREPARING TRANSMISSION FOR INSTALLATION Checking Flywheel (Engine-Mounted Models) Installing Brake And Output Flange Installing Input Flange (Remote-Mounted) Installing Range Selector Lever Installing PTO (Applicable at Any Location) Installing Shift Modulation Control Installing Oil Filler Tube Section III - PREPARING VEHICLE FOR TRANSMISSION INSTALLATION Checking Flexplate Drive Assembly (Transmission Engine-Mounted) Checking Input Drive Components (Transmission Remote-Mounted) Checking Chassis And Driveline Oil Cooler, Oil Filter, And Lines Checking Controls Section IV - INSTALLING TRANSMISSION INTO VEHICLE Handling Mounting To Engine (Transmission Engine-Mounted) Installing Transmission Mounting Components Rear Support Of The CLBT 750DB Coupling To Engine (Transmission Remote-Mounted) Coupling To Driveline Connecting Cooler And Oil Filter Lines Connecting Range Selector Control Connecting Hydraulic Retarder Control (CLBT Models) Connecting Modulator Control Connecting Power Takeoff Controls Connecting Parking Brake Controls Connecting Output Disconnect Controls (Dropbox Models Only) Connecting Speedometer Drive Installing Temperature And Pressure Sensors And Electrical Components Filling The Oil System SECTION V - OIL SYSTEM Filling The System Deep Oil Pan Oil Pan Interchangeability Spare Parts Information Installation Of The 81/2 Inch Transmission Oil Pan Assembly and Oil Filler Tube Oil Level And Oil Dipstick Checking Transmission Oil Level Oil Specifications Oil Change And Filter Replacement Oil Operating Temperatures Oil Level For Transfer Gear Housing (Dropbox) Section VI - DUAL MODE OPERATION General Description Functional Operation Installation Downshift Inhibiting - CL(B)T 750 (2100 And 2300 rpm Dropbox Models Only) CLBT 750 Dual Mode Transmission With Dropbox Section VII - RELEASE OF STEP GOVERNOR VALVE BODY ASSEMBLY P/N 23010297 General Interchangeability Spare Parts Information Section VIII - MANUAL/AUTOMATIC OPERATION ON OIL FIELD EQUIPMENT General Mannesmann Rexroth Corporation Shifter Bennett Shifter Preventive Maintenance On Shifters Mode Shift Valves Used In Mannesmann Rexroth And Bennett Systems Section IX - TROUBLESHOOTING CLBT 750 WITH DUAL MODE Pressure Tap Location Troubleshooting Dual Mode Circuitry Step Governor Valve Tags ALLISON TRANSMISSION HT 750DR DB REMOVING TRANSMISSION FROM VEHICLE ALLISON TRANSMISSION HT 750DR DB Draining Transmission ALLISON TRANSMISSION HT 750DR DB Disconnecting Controls ALLISON TRANSMISSION HT 750DR DB Uncoupling From Driveline And Engine ALLISON TRANSMISSION HT 750DR DB Removing Mounting Bolts ALLISON TRANSMISSION HT 750DR DB Removing The Transmission ALLISON TRANSMISSION HT 750DR DB Removing Input And Output Flange Or Yokes ALLISON TRANSMISSION HT 750DR DB Rebuild/Overhaul Instructions ALLISON TRANSMISSION HT 750DR DB PREPARING TRANSMISSION FOR INSTALLATION ALLISON TRANSMISSION HT 750DR DB Checking Flywheel (Engine-Mounted Models) ALLISON TRANSMISSION HT 750DR DB Installing Brake And Output Flange ALLISON TRANSMISSION HT 750DR DB Installing Input Flange (Remote-Mounted) ALLISON TRANSMISSION HT 750DR DB Installing Range Selector Lever ALLISON TRANSMISSION HT 750DR DB Installing PTO (Applicable at Any Location) ALLISON TRANSMISSION HT 750DR DB Installing Shift Modulation Control ALLISON TRANSMISSION HT 750DR DB Installing Oil Filler Tube ALLISON TRANSMISSION HT 750DR DB PREPARING VEHICLE FOR TRANSMISSION INSTALLATION ALLISON TRANSMISSION HT 750DR DB Checking Flexplate Drive Assembly ALLISON TRANSMISSION HT 750DR DB (Transmission Engine-Mounted) ALLISON TRANSMISSION HT 750DR DB Checking Input Drive Components ALLISON TRANSMISSION HT 750DR DB (Transmission Remote-Mounted) ALLISON TRANSMISSION HT 750DR DB Checking Chassis And Driveline ALLISON TRANSMISSION HT 750DR DB Oil Cooler, Oil Filter, And Lines ALLISON TRANSMISSION HT 750DR DB Checking Controls ALLISON TRANSMISSION HT 750DR DB INSTALLING TRANSMISSION INTO VEHICLE ALLISON TRANSMISSION HT 750DR DB Handling ALLISON TRANSMISSION HT 750DR DB Mounting To Engine (Transmission Engine-Mounted) ALLISON TRANSMISSION HT 750DR DB Installing Transmission Mounting Components ALLISON TRANSMISSION HT 750DR DB Rear Support Of The CLBT 750DB ALLISON TRANSMISSION HT 750DR DB Coupling To Engine (Transmission Remote-Mounted) ALLISON TRANSMISSION HT 750DR DB Coupling To Driveline ALLISON TRANSMISSION HT 750DR DB Connecting Cooler And Oil Filter Lines ALLISON TRANSMISSION HT 750DR DB Connecting Range Selector Control ALLISON TRANSMISSION HT 750DR DB Connecting Hydraulic Retarder Control (CLBT Models) ALLISON TRANSMISSION HT 750DR DB Connecting Modulator Control ALLISON TRANSMISSION HT 750DR DB Connecting Power Takeoff Controls ALLISON TRANSMISSION HT 750DR DB Connecting Parking Brake Controls ALLISON TRANSMISSION HT 750DR DB Connecting Output Disconnect Controls ALLISON TRANSMISSION HT 750DR DB (Dropbox Models Only) ALLISON TRANSMISSION HT 750DR DB Connecting Speedometer Drive ALLISON TRANSMISSION HT 750DR DB Installing Temperature And Pressure ALLISON TRANSMISSION HT 750DR DB Sensors And Electrical Components ALLISON TRANSMISSION HT 750DR DB Filling The Oil System ALLISON TRANSMISSION HT 750DR DB OIL SYSTEM ALLISON TRANSMISSION HT 750DR DB Filling The System ALLISON TRANSMISSION HT 750DR DB Deep Oil Pan ALLISON TRANSMISSION HT 750DR DB Oil Pan Interchangeability ALLISON TRANSMISSION HT 750DR DB Spare Parts Information ALLISON TRANSMISSION HT 750DR DB Installation Of The 81/2 Inch Transmission Oil Pan Assembly and Oil Filler Tube ALLISON TRANSMISSION HT 750DR DB Oil Level And Oil Dipstick ALLISON TRANSMISSION HT 750DR DB Checking Transmission Oil Level ALLISON TRANSMISSION HT 750DR DB Oil Specifications ALLISON TRANSMISSION HT 750DR DB Oil Change And Filter Replacement ALLISON TRANSMISSION HT 750DR DB Oil Operating Temperatures ALLISON TRANSMISSION HT 750DR DB Oil Level For Transfer Gear Housing (Dropbox) ALLISON TRANSMISSION HT 750DR DB DUAL MODE OPERATION ALLISON TRANSMISSION HT 750DR DB General Description ALLISON TRANSMISSION HT 750DR DB Functional Operation ALLISON TRANSMISSION HT 750DR DB Installation ALLISON TRANSMISSION HT 750DR DB Downshift Inhibiting - CL(B)T 750 (2100 And 2300 rpm Dropbox Models Only) ALLISON TRANSMISSION HT 750DR DB CLBT 750 Dual Mode Transmission With Dropbox ALLISON TRANSMISSION HT 750DR DB Section VII - RELEASE OF STEP GOVERNOR VALVE BODY ASSEMBLY P/N 23010297 ALLISON TRANSMISSION HT 750DR DB General ALLISON TRANSMISSION HT 750DR DB Interchangeability ALLISON TRANSMISSION HT 750DR DB Spare Parts Information ALLISON TRANSMISSION HT 750DR DB MANUAL/AUTOMATIC OPERATION ON OIL FIELD EQUIPMENT ALLISON TRANSMISSION HT 750DR DB General ALLISON TRANSMISSION HT 750DR DB Mannesmann Rexroth Corporation Shifter ALLISON TRANSMISSION HT 750DR DB Bennett Shifter ALLISON TRANSMISSION HT 750DR DB Preventive Maintenance On Shifters ALLISON TRANSMISSION HT 750DR DB Mode Shift Valves Used In Mannesmann Rexroth And ALLISON TRANSMISSION HT 750DR DB Bennett Systems ALLISON TRANSMISSION HT 750DR DB TROUBLESHOOTING CLBT 750 WITH DUAL MODE ALLISON TRANSMISSION HT 750DR DB Pressure Tap Location ALLISON TRANSMISSION HT 750DR DB Troubleshooting Dual Mode Circuitry ALLISON TRANSMISSION HT 750DR DB Step Governor Valve Allison Transmission HT 750DR DB Preventive Maintenance