Rubber Track Loader10. Transmission and Drive Disassembly and Assembly10-54. Install the access cover and seat. Refer toChapter 6. Seat Installation.5. Add fuel and manufacturer-approved hydraulicfluid.Pump Drive Coupler Removaland InstallationThe tools required for pump drive coupler removaland installation are listed in Table 10-3. Use manu-facturer-recommended tools whenever possible.Table 10-3Required ToolsScrewdriverCombination WrenchSocket WrenchPump Drive Coupler RemovalHot oil can cause personal injury. Make sure theoil is cool before removing any components or lines.Remove the oil filler cap only when the engine isstopped and the machine has been allowed to coolthoroughlyCollect and contain liquids in a suitable contain-er. Dispose of all liquids according to local regula-tions and mandates.Note: During disassembly, cap all hoses and fittings toprevent fluid loss and contamination of the system fluids.1. Lower the lift arms to the ground.2. Turn the ignition switch to the OFF position.3. Relieve hydraulic pressure from the auxiliarycircuit.4. Drain the hydraulic fluid. Refer to Chapter 13.Hydraulic Fluid and Filter Change.5. Remove the seat. Refer to Chapter 6. Seat Re-moval.6. Remove the auxiliary gear pump. Refer to Chap-ter 10. Auxiliary Gear Pump Removal.7. Remove the tandem pump. Refer to Chapter 10.Tandem Pump Removal.Figure 10-138. Loosen the locking screw that secures the pumpdrive coupler to the drive shaft extending fromthe end of the tandem pump.Figure 10-149. Slide the pump drive coupler off the tandempump drive shaft.LoosenLockingScrewPumpDriveCoupler TandemPumpTandem PumpDrive ShaftPumpDriveCoupler