OPERATION - How to Drain the Transmission O-ring (new) The vehicle must be in Drive ( D ) to activate LOW Mode. 1. Push and hold the gear-shift lever away until " L " appears on the Transmission Gear Display. The vehicle will remain in LOW Mode until the operator either Presses the Manual Mode Button (see Manual and Automatic Mode on page 19) Pushes the gear-shift lever away until " L " is removed from the Transmission Gear Display (see Upshifting and Downshifting on page 18) Shifts into Neutral ( N ) and then into Drive ( D ) Fill Location NOTE Oil Fill Location DO NOT fill past the FULL line. 6. Apply oil to new O-ring and replace O-ring at fill location. 7.
Clean, then replace plug at fill location, tightening plug to 44.3 lb∙ft (60 N∙m). Dispose of cloth/towel and old O-ring properly. 4 1. Remove transmission oil fill plug at Oil Fill Location. 2. Using a funnel, add a small amount of fluid at fill location. How to Drain the Transmission Draining lubricating fluid from the transmission should only be performed during fluid replacement or a repair. Take your vehicle to a PACCAR Powertrain distributor for maintenance processes that require draining transmission lubricant.
See TX-8 Transmission Lubricant Capacities on page 40 and Lubricant Specifications on page 40 for more information on the amount and type of lubricant required for this transmission. NOTE DO NOT add fluid into dipstick hous- ing. Manually Releasing the Parking Pawl 3. Find the red-handled transmission- fluid dipstick, located drivers-side, outward of the engine. 4. Twist and remove dipstick, and wipe clean using a towel or cloth. 5. Continue to fill, and then check, until fluid level on dipstick indicates FULL. Releasing the parking pawl manually, at the transmission, requires use of the Manual Release Lever. This procedure should not be performed without this lever.
Manual Release Lever (only available as a service part) LOW Mode Operation 24 Y53-1331 (6/21)