DO NOT sharpen to this pattern.

12

3

OT0792

Sharpen to this pattern.

DISCARD If More Than 1/2 in. (1.27 cm) 2

4

3

1.Square Corner

2.Cutting Edge

3.Air Lift

4.Air Lift Erosion

Figure 20

3.Check mower blade balance. Slide mower blade on an unthreaded bolt. A balanced blade should remain in a horizontal position. If either end of mower blade moves downward, sharpen the heavy end until blade is balanced. See Figure 21.

Blade

Bolt

CHECK FASTENERS

Check all fasteners for proper tightness. Pay special attention to blade hardware and all guards, shields and safety devices.

CHECK DRIVE BELTS

Check tension of mower blade and wheel drive belts. See BELT TENSION ADJUSTMENT on page 27. Check drive belts for wear and/or damage and replace as necessary. See BELT REPLACEMENT on page 30.

GENERAL LUBRICATION

Lubricate wheel drive shaft through grease fitting every to 16 hours of operation. Lightly oil all other moving parts every 25 hours of operation. Wipe off excess oil to avoid accumulation of dirt and debris.

CLEAN AIR FILTER

Clean air filter every 50 hours of operation. See engine manual for specific information. See Figure 22 for air filter location.

Muffler

Air Filter Cover Knob

Figure 22

CHANGE ENGINE OIL

Change engine crankcase oil after first five

(5)hours of operation. Then change oil after every 50 hours of operation or annually.

OA0013

Figure 21

IMPORTANT: Proper oil level must be maintained at all times or engine damage will result. DO NOT overfill. Be sure engine is level when adding oil.

4.Install mower blade on unit. See Install Mower Blade on page 20.

5.Tighten mounting bolt to a torque of 187

– 253 lb-ft (254 – 343 N•m).

NOTE: Refer to Engine Manual for instructions and proper oil type.

GB - 21