Exmark 920 manual Check Mower Blades, Maintenance, Service Interval Before each use or daily

Maintenance

2.Remove the hairpin on each side of the cushion.

3.Push the plastic slides to the inside.

4.Remove the cushion and lower it to the platform.

5.Perform any maintenance or adjustment on the machine.

6.Raise the cushion and slide it onto the pins on both sides of the machine (Figure 17).

7.Push the plastic slides into the cushion bracket and secure them with a hairpin.

Figure 17

1.Cushion bracket

2.Plastic slide

3.Pin

4.Hairpin

Figure 18

1.Install bushing in blade prior to installing bushing in spindle.

B.Install bushing/blade assembly into spindle.

Check Mower Blades

Service Interval: Before each use or daily

Figure 19

1.	Stop engine, wait for all moving parts to stop, and
	remove key. Engage parking brake.
2.	Lift deck and secure in raised position as stated in
	the Clean Grass Build-Up Under Deck section.
3.	Inspect blades and sharpen or replace as required.
4.	Reinstall the blades (if they were removed) in the

1.Use wrench here for blade installation. This nut has been torqued to 130-160 ft-lb (176–217 N-m)

2.Torque to 50-60 ft-lb (68-81 N-m) Apply lubricant to threads as needed to prevent seizing. Copper-based anti-seize preferable. Grease acceptable substitute.

following order:

A. Install bushing through blade with bushing

flange on bottom (grass) side of blade.

C.Apply lubricant to threads of blade bolt as needed to prevent seizing. Copper-based anti-seize preferable. Grease acceptable substitute. Install blade bolt finger tight. Place wrench on the top spindle nut then torque the blade bolts to 50-60 ft-lb (68-81 N-m).

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