B5.9G, B5.9LPG, B Gas Plus, B LPG Plus, and B Gas International Engines – 007-002   Lubricating Oil and Filters

WARNING  Some state and federal agencies have determined that used engine oil can be carcinogenic and cause reproductive toxicity. Avoid inhalation of vapors, ingestion, and prolonged contact with used engine oil. If not reused, dispose of in accordance with local environmental regulations.

NOTE: Oil for natural gas engines does not darken and look dirty as diesel oil does. Use the recommended maintenance intervals to determine oil change requirements, not the oil’s appearance.

Change the lubricating oil and filter at the specified oil change intervals. Refer to Procedure 102-002 (Maintenance Schedule) in Section 2 to find the correct change interval for your application.

Change the oil and filter to remove the contaminants suspended in the oil.

NOTE: Drain the oil only when it is warm and the contaminants are in suspension.

WARNING  To reduce the possibility of personal injury, avoid direct contact of hot oil with your skin.

WARNING  Some state and federal agencies have determined that used engine oil can be carcinogenic and cause reproductive toxicity. Avoid inhalation of vapors, ingestion, and prolonged contact with used engine oil. If not reused, dispose of in accordance with local environmental regulations.

Operate the engine until the water temperature reaches 60°C [140°F]. Shut the engine off.

NOTE: Use a container that can hold at least 20 liters [15 U.S. qts.] of oil.

Remove the oil drain plug.

Clean the area around the lubricating oil filter head.

Remove the oil filter with filter wrench, Part Number 3375049.

Clean the gasket surface of the filter head.

NOTE: The o-ring can stick on the filter head. Make sure it is removed before installing the new filter.

Use the correct oil filter. Refer to Procedure 018-024 (Cummins/Fleetguard® Filter Specifications) in Section V for the correct part number.

Fill the filter with clean lubricating oil before installation. The lack of lubrication during the delay until the filter is pumped full of oil is harmful to the engine.

Apply a light film of lubricating oil to the gasket sealing surface before installing the new filter.

CAUTION  Mechanical overtightening can distort the threads or damage the lubricating oil filter element seal.

Install the lubricating oil filter.

Turn the filter until the gasket contacts the filter head surface. Tighten the filter by hand an additional 1/2 to 3/4 of a turn after the gasket contacts the filter head surface, or as specified by the filter manufacturer.

Check and clean the lubricating oil drain plug threads and sealing surface.

Install the oil drain plug.

Use a high quality oil blend that meets Cummins® specifications for natural gas engines. Refer to Procedure 018-003 (Lubricating Oil Recommendations and Specifications) in Section V.

Fill the engine with clean lubricating oil to the proper level.

NOTE: Capacities assume standard pan. Total system assumes standard pan plus filter.

Some 6B applications use a reduced capacity pan 10.4 Liters [11 U.S. Qts] and some have increased capacity of 16 Liters [17 U.S. Qts.]. Fill quantities must be adjusted accordingly.

WARNING  If no oil pressure is noted within 15 seconds after the engine is started, shut down the engine to reduce the possibility of internal damage.

Operate the engine at idle to inspect for leaks at the lubricating oil filter and the drain plug.

Confirm that the correct oil level is in the pan.

Stop the engine. Wait approximately 5 minutes to let the lubricating oil drain from the upper parts of the engine. Check the oil level again.

Add oil as necessary to bring the oil level to the H (high) mark on the dipstick.