Briggs & Stratton MB (18 HP) owner manual Maintenance Instructions, Lubrication

Maintenance Instructions LUBRICATION

3.Remove the dipstick and oil drain plug, and drain oil into a suitable container. Be sure to allow ample time for complete drainage.

4.Before removing the oil filter, clean the area around the filter to keep dirt and debris out of the engine.

5.Remove the old oil filter and wipe off the filter mounting surface on the engine.

Oil Fill

Dipstick

Dipstick and Oil Fill

(view from above left side of tractor)

Oil Filter

Oil Drain

Oil Drain and Oil Filter Locations

(view from above right side of tractor)

6.Apply a thin coating of new oil to the rubber gas- ket on the replacement oil filter.

IMPORTANT: Use ONLY oil filters from the engine manufacturer. Aftermarket oil filters may not seal properly and/or may not have the cor- rect pressure relief valve for proper lubrication.

7.Install the new oil filter on the engine. Turn the oil filter clockwise until the rubber gasket con- tacts the sealing surface, then tighten the filter an additional 1/2 to 3/4 turn.

8.Reinstall the drain plug.

9.Fill the crankcase with new, clean oil. Use only crankcase lubricants recommended by the engine manufacturer. Refer to Specifications in this manual or the engine owner’s manual. Use the recommended oil viscosity for the expected ambient temperature. Oil with the correct vis- cosity will aid starting in cold weather and assure proper lubrication in hot weather. Fill to FULL mark on the dipstick; crankcase capacity is 1.5 quarts (1.4 liters) when changing oil and filter.

IMPORTANT: Check the dipstick reading be- fore pouring in the last 1/2 pint of oil and fill only to the FULL mark. The oil level should never be over the FULL mark on the dipstick; overfilling can result in engine overheating and loss of power.

10.Start the engine and check for oil leaks around the oil filter. Stop the engine, recheck the oil lev- el, and add oil if necessary. (When the engine is first operated with a new oil filter, the oil level will drop slightly as the filter is filled with oil.)

Grease Fitting and Oil Point Lubrication

Lubricate the grease fittings and oil points after every 25 hours of operation. Lubricate more often when operating in dusty or dirty conditions. Use SAE general purpose lithium or molybdenum base grease for grease fittings and light machine oil (SAE

10)to lubricate oil points. Lubricate the locations shown in the Chassis and Deck Lubrication Points illustration.

NOTE: PTO universal joints (on the deck and trac- tor) require routine lubrication after every 8 hours of running time.

NOTE: The pillowblock bearings on the PTO drive shaft are a sealed, relubricatable-type bearing. Grease lightly once per year using care to not over-lubricate and damage the seals.

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