Briggs & Stratton 131F manual Inspect the Blade, Remove and Install the Blade

Maintenance

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Figure 21

Install the Connector Tube

1.Slide the flange (7) end of the connector tube (3) through hole in rear plate (6) (see Figures 19 and 21).

2.Slide the flange end of the connector tube over the extension tube (8) (see Figure 19).

3.Attach the rubber strap (1) to the latch pin (2) on the connector tube (3) (see Figures 18 and 19).

4.Install the grass bag.

Inspect the Blade

WARNING

Before you inspect or remove the blade, disconnect the wire to the spark plug. If the blade hits an object, stop the engine. Check the unit for damage. The blade has sharp edges.When you hold the blade, use gloves or cloth material to protect your hands.

If you keep the blade (1) sharp and inspect the blade for damage, the blade will cut better and be more safe to operate (see Figure 22). Frequently check the blade for excessive wear, cracks,or other damage.

Frequently check the nut (3) that holds the blade. Keep the nut tight. If the blade hits an object, stop the engine. Disconnect the wire to the spark plug. See if the blade is bent or damaged. Check the blade adapter (5) for damage.

Before you operate the unit, replace damaged parts with original equipment parts. See the authorized service center in your area. Every three years, have an authorized service person inspect the blade or replace the old blade with an original equipment part.

Remove and Install the Blade

1.Remove the mower housing. See “Remove the Mower Housing.”

2.Use a piece of wood to keep the blade from rotating.

3.Remove the nut (3) that holds the blade (1) (see Figure 22).

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	77	107
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17		87
27		17
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		Figure 22

4.To remove the blade (1) from the air assist fan (8), remove fasteners (9) and (10).

5.Check the blade and blade adapter (5) according to the instructions for “Inspect the Blade”. Check the air assist fan for damage. Replace badly worn or damaged parts with original equipment parts.

See an authorized service center in your area.

6.Clean the top and bottom of the mower housing. Clean the air assist fan. Remove all the grass and debris.

7.Assemble the blade and air assist fan with fasteners (9) and (10). Tighten the bolt that holds the blade to 6,8 N-m (5 ft-lbs).

8.Mount the blade and blade adapter on the mandrel (6).

9.Mount the blade so that the hi-lift edges (7) are up. If the blade is upside down, the blade will not cut correctly and can cause an accident.

10.Fasten the blade with the original washers and nut

(3). Make sure the outside rim of the Belleville washer (2) is against the blade.

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