Briggs & Stratton 7800921-00, 7800918-00 NotB, How To Service The Air Filter, Flat Air Filter

				Maintenance
			Flat Air Filter
!	WARNING	!
			1.	cover handle toward the engine and then remove the
				Pull up on the cover handle (A, Figure 25). Rotate the
DO NOT attempt any adjustments, maintenance, service or				cover (B).
repairs with the engine running. STOP engine. STOP blade.
			2.	Remove the pre-cleaner (C), if equipped, and the filter
Engage parking brake. Remove key. Remove spark plug
				(D).
wire from spark plug and secure away from plug. Engine
			3.	To loosen debris, gently tap the filter on a hard surface.
and components are HOT. Avoid serious burns, allow all
				If the filter is excessively dirty, replace with a new filter.
parts to cool before working on machine.			4.
				Wash the pre-cleaner in liquid detergent and water.
				Then allow it to thoroughly air dry. Do not oil the pre-
How To Service The Air Filter
				cleaner.
			5.	Assemble the dry pre-cleaner and the filter into the
!	WARNING	!
			6.	Align the tabs (F) on the cover with the slots (G) in the
Fuel and its vapors are extremely flammable and explosive.				engine base (E).
				blower housing. Rotate the cover handle back and push
Fire or explosion can cause severe burns or death.
				down to lock in place.
• Never start or run the engine with the air cleaner assem-
bly (if equipped) or the air filter (if equipped) removed.

NOTICE: Do not use pressurized air or solvents to clean the	A	B
filter. Pressurized air can damage the filter and solvents will
dissolve the filter.

Oval Air Filter			Reproduction
1.	Remove the fastener (A, Figure 24) and the air filter						E			F
2.	cover (B).
	Remove the pre-cleaner (C), if equipped, and the filter							G
3.	(D).
	To loosen debris, gently tap the filter a hard surface.
				for
4.	If the filter is excessively dirty, replace with a new filter.
	Wash the pre-cleaner in liquid detergent and water.									D
	Then allow it to thoroughly air dry. Do not oil the pre-
	cleaner.								C
5.	Assemble the dry pre-cleaner to the filter.
6.	Install the filter and pre-cleaner into the base (E). Make					Figure 25: Air filter (flat)
7.	sure filter fits securely in the base.
	Install air filter cover and secure with fastener. Make				Cylindrical Cartridge Air Filter
	sure the fastener is tight.
					1.		Remove the fasteners (A, Figure 26) and the air filter
							cover (B).
	A	NotB			2.
							To remove the filter (C), lift the end of the filter and then
					3.		pull the filter off the intake (D).
							Remove the pre-cleaner (E), if equipped, from the filter.
					4.		To loosen debris, gently tap the filter on a hard surface.
			D		5.		If the filter is excessively dirty, replace with a new filter.
							Wash the pre-cleaner in liquid detergent and water.
							Then allow it to thoroughly air dry. Do not oil the pre-
					6.		cleaner.
							Assemble the dry pre-cleaner to the filter.
					7.		Install the filter on the intake. Push the end of the filter
							into the base as shown. Make sure filter fits securely in
					8.		the base.
							Install air filter cover and secure with fasteners.

E C

Figure 24: Air filter (oval)

en 23