Maintenance, Adjusting the Blade Gaps F9

F10

English

6. MAINTENANCE

WARNING

Before cleaning, inspecting, or repairing the unit, make sure that the engine has stopped and is cool.

■ BLADE (F8)

• Check the blade and the fasteners for looseness, cracking, or bending.

• Check the cutting edges and reform with a flat file.

Point:

1. Keep the end corner sharp.

2. Round the root of the edge.

3.Do not use water when using a grinder.

■ ADJUSTING THE BLADE GAPS (F9)

To adjust the blade gaps, proceed as follows.

1. Fully tighten the blade-securing bolts.

2. Loosen the tightened blade- securing bolts by 1/2 ~ 3/4 turns.

3. With the blade-securing bolts loosened as described in step 2, tighten the nuts.

4. Make sure that the upper and lower blade move smoothly.

(1)Blade-securing bolt

(2)Nut

(3)Locations for adjusting the blade gaps (4 locations)

(4)Locations for adjusting the blade gaps (3 locations)

■ SAFETY LOCK (F10)

WARNING

Stop operation when the safety lock is defective.

Safety lock is the device not to accelerate the throttle lever without intention. While pushing the safety lock, you can accelerate the throttle lever.

(1) Safety lock

1. Check if the throttle lever does not move when you do not push the safety lock.

2.Check if the throttle lever moves when you grasp or release it while pushing the safety lock.