– Instruments, gauges, and lights work correctly – Shift selector display is on and CHECK TRANS light is off – Fluid temperature gauge • Power Takeoff, if installed, for: – Controls connected and operative – Correctly coupled to driven equipment – Lubrication line correctly installed and routed, if used – Clutch apply line correctly installed and routed, if used 6–11. ROAD TEST AND VEHICLE OPERATION CHECKLIST a. Driveability. NOTE: Refer to the latest edition of the applicable Operator’s Manual (refer to 7–2. SERVICE LITERATURE ). Driveaway checks are performed to verify proper transmission and support equipment installation and operation. The following steps outline driveaway check procedures: 1. Check fluid—fill the transmission with the appropriate fluid. 2. Start the vehicle—check for proper system response during startup. a. Turn on the vehicle’s master/ignition switch. b. The CHECK TRANS (Check Transmission) light should come on. c. Start the engine d. The CHECK TRANS (Check Transmission) light should go off. 3. Clear Trouble Codes—during installation, it is common for “false” codes to be stored in the electronic control’s TCM. These codes must be cleared prior to road testing the vehicle. Refer to the Allison DOCTM For PC–Service Tool User’s Guide, GN3433EN, for details. 4. Road Test the Vehicle—allow the electronic control time to “converge” shifts. 5. Check for Proper Operation—check all components for proper mounting and operation, and check for transmission fluid leaks at gasket surfaces, lines, and hoses. 6. Recheck for Trouble Code—use the Allison DOCTM for PC–Service Tool, or shift selector to determine if codes were set during the road
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