Troy-Bilt F753B manual Mower Blades

Section 5: Maintenance

WARNING

Before inspecting, cleaning or servicing the machine, shut off engine, wait for moving parts to stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key (electric start models).

Failure to follow these instructions can result in serious personal injury or property damage.

I

Y

X

P

Figure 5-15: Transmission neutral (N) adjustment.

Replace if separation

begins to form.

MOWER BLADES

WARNING

Mower blades are sharp.

•When working near blades, wear heavy leather gloves or wrap blades in thick rags to protect yourself from the sharp edges.

•Wear eye protection when sharpening blades.

Examine mower blades before operation. For efficient mowing, cutting edges of blades should always be kept sharp. Check for blade wear or damage. See Figure 5-16. Replace a severely worn or damaged blade with a new one.

To Inspect Blades:

1.Stop engine, wait for all parts to stop moving, and disconnect spark plug wire.

2.Tip mower on rear wheels by follow- ing instructions “Tipping Mower For Service” in this Section of Manual.

To Remove Blades:

Remove bolt (Figure 5-18) and washer(s). Remove mower blade.

To Sharpen Blades:

Grind or file the same amount from each blade end to maintain blade balance. An unbalanced mower blade produces ex- cessive vibration and may damage spin- dle bearings. Sharpen cutting edge straight across, parallel to rear edge of mower blade. See Figure 5-16. After sharpening, blade balance must be checked.

IMPORTANT: PROFESSIONAL SHARP- ENING SERVICES OR YOUR AUTHO- RIZED DEALER ARE EQUIPPED TO SHARPEN MOWER BLADES SAFELY.

To Install Blades:

Blades must be installed perpendicular to each other (see Figure 5-17).

Install mower blade as shown in Figure 5-18 with flat side down. Install washer on bolt. Tighten bolts to a torque value of 35 ft. lbs. (47 Nm).

NOTE: If top bolt is removed, reinstall using LOCTITE #242 thread sealant.

Sharpen blade cutting edge straight across, parallel to blade trailing edge.

Figure 5-16: Blade Inspection

FRONT

BLADES

MUST BE PERPENDICULAR

TO EACH OTHER

Figure 5-17
	Torque to
	35 Ft. Lbs.
	Mower Blade
	Washer
Bolt	Torque to
	35 Ft. Lbs.

Figure 5-18: Blade spindle.

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