SERVICE MOWER

Replacing Mower Blades

A

C

D

B

MX15357

1.Use two long-handled 15/16 in. wrenches to loosen nut

(A).

2.Remove nut (A), blade bolt (B), three 1/4 in. washers (C) and blade (D).

3.Install replacement blade:

• Blade wing must face toward top of mower deck.

IMPORTANT: Avoid damage! When installing the blade:

Make sure the blade is properly seated on the spindle.

Make sure the concave side of the large washer faces toward the blade.

Install blade bolt (B), blade (D), three 1/4 in. washers

(C) and nut (A).

Tighten blade nut to 81 N•m (60 lb-ft).

4.Lower machine.

5.Adjust mower deck to a desirable cutting height.

Sharpening Blades

c CAUTION: Avoid injury! Mower blades are dangerous!

Always wear gloves while working on blades.

Always wear safety eye protection when grinding.

Sharpen blades with grinder, hand file or electric blade sharpener.

A

B

MX8333

Keep original bevel (A) when grinding.

Blade should have 0.40 mm (1/64 in.) cutting edge (B) or less.

Balance blades before installing.

Balancing Blades

c CAUTION: Avoid injury! Mower blades are sharp. Always wear gloves when handling mower blades or working near blades.

1. Clean blade.

M61524

2.Put blade on nail in a vise. Turn blade to horizontal position.

3.Check balance. If blade is not balanced, heavy end of blade will drop.

4.Grind bevel of heavy end. Do not change blade bevel.

Replacing Mower Spindle Bearings - 48-, 52- and 61-Inch Mower Decks

1.Park machine safely. (See Parking Safely in the Safety section.)

Service Mower - 48

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Great Dane GDRZ52-25KHE, GDRZ72-27KHE, GDRZ61-25KAE manual Sharpening Blades, Balancing Blades, Replacing Mower Blades

GDRZ48-19KAE, GDRZ61-25KHE, GDRZ61-27KHE, GDRZ48-17KAE, GDRZ72-28KHE specifications

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