LUBRICATION

1.With the wheels on the ground, start the engine and turn the steering wheel to a full left turn.

2.Locate the bleeder screw in the steering gear. The bleeder screw is located in the steering gear housing, above the pitman arm shaft.

1.With the wheels on the ground, start the engine and turn the steering wheel to a full left turn.

2.Locate the bleeder screw in the steering gear. The bleeder screw is located in the steering gear housing, above the pitman arm shaft.

Lubrication

3.Using a 1/8″ Allen wrench, open the bleeder screw 2–3 turns.

4.Turn the steering wheel to a full right turn.

5.Close the bleeder screw when the wheels are turned fully to the right.

Turning the wheels to a full right turn with the bleeder screw open forces air under pressure from the system. DO NOT steer the wheels to the left with the bleeder screw open as this will draw air back into the system.

6.Repeat the above procedures 2–3 times until a smooth stream of oil flows from the bleeder screw. A smooth stream of oil indicates that all the air has been purged from the system.

3.Using a 1/8″ Allen wrench, open the bleeder screw 2–3 turns.

4.Turn the steering wheel to a full right turn.

5.Close the bleeder screw when the wheels are turned fully to the right.

Turning the wheels to a full right turn with the bleeder screw open forces air under pressure from the system. DO NOT steer the wheels to the left with the bleeder screw open as this will draw air back into the system.

6.Repeat the above procedures 2–3 times until a smooth stream of oil flows from the bleeder screw. A smooth stream of oil indicates that all the air has been purged from the system.

Make sure the reservoir does not run dry during the purging operation as air may be drawn into the system.

Make sure the reservoir does not run dry during the purging operation as air may be drawn into the system.

Lubrication

Geared Components (Transmission and Carriers)

Add oil or drain and refill while units are hot. Fill to level of filler plug hole. DO NOT overfill. See “LUBRICANT SPECIFICATIONS” on page 267.

When the oil level in any geared unit (transmission, carrier, etc.) is checked, oil must either be seen or felt to be level with the filler plug hole. If oil can only be felt by reaching the finger down into the unit, the oil level is insufficient.

Geared Components (Transmission and Carriers)

Add oil or drain and refill while units are hot. Fill to level of filler plug hole. DO NOT overfill. See “LUBRICANT SPECIFICATIONS” on page 267.

When the oil level in any geared unit (transmission, carrier, etc.) is checked, oil must either be seen or felt to be level with the filler plug hole. If oil can only be felt by reaching the finger down into the unit, the oil level is insufficient.

Take care not to burn hands when checking oil level on hot geared units.

Take care not to burn hands when checking oil level on hot geared units.

Lubrication

Transmissions

Remove and clean the magnetic drain plug and the magnetic oil filter plug (if equipped). Also clean the trough located inside the area from where the magnetic filter plug was removed. After the oil has drained, reinstall the plugs. Remove the fill plug and fill the transmission with enough of the recommended lubricant (see “LUBRICANT SPECIFICATIONS” on page 267) to bring the level to the bottom of the filler plug hole. Reinstall the filler plug.

Remove the breather(s). Clean with a suitable, nonflammable solvent; check for obstructions, and reinstall.

Transmissions

Remove and clean the magnetic drain plug and the magnetic oil filter plug (if equipped). Also clean the trough located inside the area from where the magnetic filter plug was removed. After the oil has drained, reinstall the plugs. Remove the fill plug and fill the transmission with enough of the recommended lubricant (see “LUBRICANT SPECIFICATIONS” on page 267) to bring the level to the bottom of the filler plug hole. Reinstall the filler plug.

Remove the breather(s). Clean with a suitable, nonflammable solvent; check for obstructions, and reinstall.

Do not overtighten the fill plug. Tighten the fill plug as follows:

Tapered pipe plug finger-tighten first, then tighten an additional 3/4 to 1 turn (not to exceed 75 N•m [55 lb-ft]) with a wrench.

O-ring boss-style plug tighten to 41–48 N•m (30–35 lb-ft).

Do not overtighten the fill plug. Tighten the fill plug as follows:

Tapered pipe plug finger-tighten first, then tighten an additional 3/4 to 1 turn (not to exceed 75 N•m [55 lb-ft]) with a wrench.

O-ring boss-style plug tighten to 41–48 N•m (30–35 lb-ft).

DO NOT exceed 48 N•m (35 lb-ft) as the plug can seize, resulting in damage to the transmission case when attempting to remove the plug at a later time.

DO NOT exceed 48 N•m (35 lb-ft) as the plug can seize, resulting in damage to the transmission case when attempting to remove the plug at a later time.

Lubrication

Range Shift Valve Filter (Range Shifted Transmissions)

At each C and D inspection interval, remove and clean or replace the range shift valve filter as follows:

Range Shift Valve Filter (Range Shifted Transmissions)

At each C and D inspection interval, remove and clean or replace the range shift valve filter as follows:

43 — Range Shift Valve Cover Spring and Filter

1.Remove the four top cover screws from the valve.

2.Separate the cover from the valve housing.

3.Remove the filter and filter O-ring.

4.Clean (or replace, if necessary) the filter with a suitable, nonflammable solvent, then dry the filter with clean, dry compressed air.

5.Apply Mobile Grease No. 28 sparingly to the filter O-ring.

1.Remove the four top cover screws from the valve.

2.Separate the cover from the valve housing.

3.Remove the filter and filter O-ring.

4.Clean (or replace, if necessary) the filter with a suitable, nonflammable solvent, then dry the filter with clean, dry compressed air.

5.Apply Mobile Grease No. 28 sparingly to the filter O-ring.

Do not over-lubricate the O-ring, as this may result in filter restriction. Make sure that the O-ring is only lightly lubricated.

6.Install the O-ring and the filter into the filter bore of the housing. Set the filter on top of the O-ring and make sure the O-ring is properly seated.

7.Apply Mobile Grease No. 28 sparingly to the top cover seal, then install the seal into the groove in the top cover, making sure all portions of the seal are properly located. (If the top cover seal is damaged in any way, it must be replaced.)

8.Install the top cover and the four cover screws. Tighten the screws to 3.4–4.5 N•m (30–40 lb-in).

Eaton Fuller Transmissions

The transmission oil fill plug used on Eaton Fuller transmissions incorporates an O-ring seal. This plug requires the use of a 1/2-inch internal square drive tool for removal and reinstallation. Thread sealant is not required when installing the plug, and the plug must be tightened to 57 N m (42 lb-ft).

Do not over-lubricate the O-ring, as this may result in filter restriction. Make sure that the O-ring is only lightly lubricated.

6.Install the O-ring and the filter into the filter bore of the housing. Set the filter on top of the O-ring and make sure the O-ring is properly seated.

7.Apply Mobile Grease No. 28 sparingly to the top cover seal, then install the seal into the groove in the top cover, making sure all portions of the seal are properly located. (If the top cover seal is damaged in any way, it must be replaced.)

8.Install the top cover and the four cover screws. Tighten the screws to 3.4–4.5 N•m (30–40 lb-in).

Eaton Fuller Transmissions

The transmission oil fill plug used on Eaton Fuller transmissions incorporates an O-ring seal. This plug requires the use of a 1/2-inch internal square drive tool for removal and reinstallation. Thread sealant is not required when installing the plug, and the plug must be tightened to 57 N m (42 lb-ft).

Transfer Case

Lubrication

With the transfer case at operating temperature, remove the magnetic drain plug and drain the oil. Clean and reinstall the plug. Remove the breather, clean with a suitable, nonflammable solvent, check for obstructions, and reinstall. Remove the filler plug and fill the transfer case with enough of the recommended oil to bring the level to the bottom of the filler plug hole. Reinstall the filler plug.

Transfer Case

With the transfer case at operating temperature, remove the magnetic drain plug and drain the oil. Clean and reinstall the plug. Remove the breather, clean with a suitable, nonflammable solvent, check for obstructions, and reinstall. Remove the filler plug and fill the transfer case with enough of the recommended oil to bring the level to the bottom of the filler plug hole. Reinstall the filler plug.

On transfer cases equipped with an optional PTO, change the oil filter when the oil is changed. The transfer case shown in the illustration above is equipped with an optional PTO. Transfer cases that are not equipped with a PTO do not have an oil filter, and have a shorter hose that runs from the main shaft cover to the countershaft cover.

On transfer cases equipped with an optional PTO, change the oil filter when the oil is changed. The transfer case shown in the illustration above is equipped with an optional PTO. Transfer cases that are not equipped with a PTO do not have an oil filter, and have a shorter hose that runs from the main shaft cover to the countershaft cover.

Lubrication

Rear Engine Power Take-Off (REPTO)

The REPTO unit is lubricated by oil from the engine. Scheduled engine oil changes take care of any periodic service requirements.

Transmission, Auxiliary Transmission, Transfer Case Linkages

At each oil change interval, put two drops of engine oil on the movable connections of the linkages for the transmission, auxiliary transmission and transfer case.

Rear Axles

Add oil or drain and refill while axles are hot. Fill to the level of the filler plug hole. DO NOT overfill. See “Gear Oils” on page 268.

Rear axles with front-mounted carriers — With the axle at operating temperature, remove the magnetic drain plug and drain the oil from the axle housing. Clean and reinstall the plug. Remove the filler plug and fill the axle housing with enough of the recommended oil to bring the level to the bottom of the filler plug hole. Reinstall the plug.

Rear axles with top-mounted carriers — With the axle(s) at operating temperature, remove the magnetic drain plugs from the interaxle power divider on the front carrier (if so equipped), the carrier bevel gear compartment(s), and the axle housing(s), and allow the oil to drain. Clean and reinstall the plugs. Refer to “Magnetic Strips and Oil Troughs” on page 167 for information concerning the magnetic strips and oil trough cleaning procedures. Remove the filler plug from the interaxle power divider (if equipped) and add one pint (1.5 pints for CRD200 carriers) of the recommended oil. Reinstall the filler plug. Remove the filler plugs from the bevel gear compartment(s) and fill with the recommended oil until level with the bottom of the filler plug hole. Reinstall the filler plug(s). Remove the filler plugs from the axle housing(s) and fill with enough of the recommended oil until level with the bottom of the filler plug hole. Reinstall the filler plug(s). If the axle is equipped with an elbow fitting in the axle housing fill plug hole, the easiest method of filling the housing is by removing the breather fitting from the right-hand side of the carrier and the fill plug from the elbow fitting. Fill the housing through the breather hole until the oil runs out the elbow fitting. Reinstall the fill plug and the breather fitting.

Rear Engine Power Take-Off (REPTO)

The REPTO unit is lubricated by oil from the engine. Scheduled engine oil changes take care of any periodic service requirements.

Transmission, Auxiliary Transmission, Transfer Case Linkages

At each oil change interval, put two drops of engine oil on the movable connections of the linkages for the transmission, auxiliary transmission and transfer case.

Rear Axles

Add oil or drain and refill while axles are hot. Fill to the level of the filler plug hole. DO NOT overfill. See “Gear Oils” on page 268.

Rear axles with front-mounted carriers — With the axle at operating temperature, remove the magnetic drain plug and drain the oil from the axle housing. Clean and reinstall the plug. Remove the filler plug and fill the axle housing with enough of the recommended oil to bring the level to the bottom of the filler plug hole. Reinstall the plug.

Rear axles with top-mounted carriers — With the axle(s) at operating temperature, remove the magnetic drain plugs from the interaxle power divider on the front carrier (if so equipped), the carrier bevel gear compartment(s), and the axle housing(s), and allow the oil to drain. Clean and reinstall the plugs. Refer to “Magnetic Strips and Oil Troughs” on page 167 for information concerning the magnetic strips and oil trough cleaning procedures. Remove the filler plug from the interaxle power divider (if equipped) and add one pint (1.5 pints for CRD200 carriers) of the recommended oil. Reinstall the filler plug. Remove the filler plugs from the bevel gear compartment(s) and fill with the recommended oil until level with the bottom of the filler plug hole. Reinstall the filler plug(s). Remove the filler plugs from the axle housing(s) and fill with enough of the recommended oil until level with the bottom of the filler plug hole. Reinstall the filler plug(s). If the axle is equipped with an elbow fitting in the axle housing fill plug hole, the easiest method of filling the housing is by removing the breather fitting from the right-hand side of the carrier and the fill plug from the elbow fitting. Fill the housing through the breather hole until the oil runs out the elbow fitting. Reinstall the fill plug and the breather fitting.