Freightliner Trucks Business Class Truck FL50

Pressure-relief capscrew, gasket, pawl spring, and pawl removed

Pawl examined for grease retention and condition

Pressure-relief capscrew, gasket, pawl spring, and pawl installed and tightened to 15 to 20 lbf·ft (20 to 27 N·m) if grease is in good condition

Slack adjuster lubricated through the grease fitting until lubricant is forced out through the pressure-relief fitting (or pawl slot)

Hollow capscrew installed and tightened to 15 to 20 lbf·ft (20 to 27 N·m) if used

Slack adjuster removed, disassembled, cleaned, inspected, and new seals and boot installed if grease is hardened or pawl shows extreme wear

Slack adjuster installed and lubricated after assembly

Sign off on the automatic slack adjuster inspection

Cleaned the dirt from both grease fittings on the drag link

Upload a photo of the cleaned grease fittings

Applied multipurpose chassis grease at the grease fittings until old grease is forced out of the socket

Sign off on the drag link lubrication

Vehicle parked on a level surface with parking brakes applied and rear tires chocked?

Oil drained while the transmission is warm?

Area around the fill plug and the drain plug(s) cleaned?

Fill plug from the side of the gear case removed? Drain plug(s) from the bottom of the case removed?

Magnetic plug(s) cleaned before installation?

Enter the torque applied to tighten the drain plug(s) for an Eaton Fuller plug

Enter the torque applied to tighten the drain plug(s) for a Meritor plug

Park the vehicle on a level surface. Apply the parking brakes, and chock the tires.

Disconnect the batteries to prevent static discharge.

Release the fuel system pressure and drain the fuel tank.

Remove the fuel tank cap to release the fuel tank pressure.

Unscrew the protective plastic cap from the pressure test port on the fuel rail.

Obtain a Kent-Moore fuel pressure gauge tool set (#5069), or equivalent tool. Remove the gauge from the hose. Place one end of the hose into an approval gasoline container.

Place a shop towel under the test port, then screw the other end of the hose onto the test port. Allow the fuel to flow into the gasoline container until fuel pressure is completely released.

Remove the hose from the test port, and reconnect the gauge to the hose.

Install the protective plastic cap to the pressure test port on the fuel rail.

Air Cleaner Element Inspecting and Replacing

Replace the air cleaner element at the recommended interval or when the air restriction indicator reaches 22 inH2O on a vehicle with an MBE engine, or 25 inH2O on a vehicle with a Detroit Diesel, Caterpillar, or Cummins engine, if equipped with an air restriction indicator. For replacement instructions, see Group 09 of the Business Class Trucks Service Manual.

Reset the air restriction indicator.

If the maximum restriction is not reached, record the air restriction value. If the value is higher than the previous recording, reset the air restriction indicator.

If the value is lower than the previous recording, inspect the air cleaner and air cleaner element of cracks, leaks, or any other damage.

If the air cleaner or air cleaner element is damaged, replace it and reset the air restriction indicator.

Replace the air cleaner element at the recommended interval or when the air restriction indicator reaches 22 inH2O on a vehicle with an MBE engine, or 25 inH2O on a vehicle with a Detroit Diesel, Caterpillar, or Cummins engine, if equipped with an air restriction indicator. For replacement instructions, see Group 09 of the Business Class Trucks Service Manual.