Briggs & Stratton MB (18 HP) owner manual Deck Leveling

Assembly Instructions

Deck Leveling	2.	Check the side-to-side level. Rotate each blade
		sideways and measure the distance from blade
1. Position mower on a smooth, level surface. Set		tip to ground on each side. If measurements
the cutting height to the highest position - 4 in.		vary more than 1/8 in. (3 mm), add a washer
(102 mm) - for easy access under the deck to		shim under the deck support pins on the low side
measure blade height. Refer to ADJUSTING		to level the deck.
CUTTING HEIGHT in Operating Instructions.	3.	Check the front-to-rear level. Rotate the blades
NOTE: A block of wood cut 4 in. (102 mm) high		to point forward. Measure the distance from
is a convenient gauge to measure blade height		blade tip to ground on the front and rear. The
above ground during the leveling process.		rear of the blade should be 1/8 to 1/4 in. (3 to 6
		mm) higher than the front of the blade; shim the
		rear (or front) deck support pins equally to
WARNING
		achieve at least 1/8 in. (3 mm) difference.
		NOTE: The mower deck and support frame
The machine must be shut off during this
		are jig welded; within normal tolerances, very lit-
procedure.
		tle, if any, shimming should be required to level
		the deck. Tire pressure will influence the level-
		ness of the deck. Check the tire pressure as a
		possible cause of the deck not being level.

4 in. (102 mm)

Wood Block

Should be 1/8 in. (3 mm) to 1/4 in. (6 mm) higher at the rear of the blade

Should not vary more than 1/8 in. (3 mm) side-to-side

4 in. (102 mm)

Wood Block

Deck Leveling

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