Simplicity 1693764, 1693738 Servicing The Mower Blades, Blade Brake Check, Regular Maintenance

Models: 1693116 1693128 1692870 1693134 1692871 1693112 1693219 1693130 1693126 1693120 1693118 1693114 1693124 1692872 1693136 1693138 1693132 1693220 1693562 1693250 1693561 1693563 1693769 1693764 1693771 1693770 1693738

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SERVICING THE MOWER BLADES

Regular Maintenance

SERVICING THE MOWER BLADES

BLADE BRAKE CHECK WARNING

For your personal safety, do not handle the sharp mower blades with bare hands. Careless or improper handling of blades may result in serious injury.

1.Remove mower from the tractor. See Mower Installation & Removal.

2.Blades should be sharp and free of nicks and dents. If not, sharpen blades as described in following steps.

3.To remove blade for sharpening, use a wood block to hold blade while removing the blade mounting cap- screw (Figure 36).

4.Use a file to sharpen blade to fine edge. Remove all nicks and dents in blade edge. If blade is severely damaged, it should be replaced.

5.Balance the blade as shown in Figure 37. Center the blade’s hole on a nail lubricated with a drop of oil. A balanced blade will remain level.

6.Reinstall each blade with the tabs pointing up toward deck as shown in Figure 40. Secure with a capscrew (D, Figure 38), spring washer (B), and spline washer

(B). Be certain the spline washer is aligned with the shaft splines. Use a wooden block to prevent blade rotation and torque capscrews to 45-55 ft.lbs. (61-75 N.m.).

Figure 36. Removing the Blade WARNING

For your personal safety, blade mounting capscrews must each be installed with a hex washer and spring washer, then securely tightened. Torque blade mounting capscrew to 45-55 ft. lbs. (61-75 N.m.)

BLADE BRAKE CHECK

Mower blades and mower drive belt should come to a complete stop within five seconds after electric PTO switch is turned off.

1.With tractor in neutral, PTO disengaged and operator in seat, start the engine.

2.Engage the PTO and wait several seconds. Disengage the PTO and check the amount of time it takes for the mower drive belt to stop.

3.If mower drive belt does not stop within five seconds, see your dealer.

LOOSEN

Figure 36. Removing the Blade

Workbench

Nail

Figure 37. Balancing The Blade

B

C

D

A

TIGHTEN

Figure 38. Installing The Blade

A.

Wood Block

C.

Spring Washer

B.

Spline Washer

D.

Capscrew

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Simplicity 1693764, 1693738, 1693770 Servicing The Mower Blades, Blade Brake Check, Regular Maintenance, Removing the Blade