Bolens 100 서비스 매뉴얼

Periodically inspect the blade adapter for 

cracks, especially if you strike a foreign object. 

Replace when necessary. Follow the steps 

below for blade service:

1.  Disconnect spark plug wire from spark plug.
2. Tip mower as specified in separate engine 

manual. If it does not specify turn mower on 

its side making sure that the air filter and the 

carburetor are up.

3. Remove the bolt and the blade bell support 

which hold the blade and the blade adapter 

to the engine crankshaft. See Figure 11.

4. Remove blade and adapter from the crank-

shaft.

5. The blade may be resharpened by removing 

it and either grinding or filing the cutting edge 

keeping as close to the original bevel as 

possible. Do not attempt to sharpen the blade 

while it is still on the mower.

6. It is 

extremely important that each cutting 

edge receives an equal amount of grinding to 

prevent an unbalanced blade.

NOTE: Improper blade balance will result in 

excessive vibration causing eventual damage to 

the engine and mower.  Be sure to carefully bal-

ance blade after sharpening. Possible damage 

resulting from blade unbalance condition is not 

the responsibility of the manufacturer.
NOTE: Always remove blade from the adapter 

for testing balance. 
7.  The blade can be tested for balance by 

balancing it on a round shaft screwdriver. 

Remove metal from the heavy side until it 

balances evenly.

8. Before reassembling the blade and the blade 

adapter to the unit, lubricate the engine 

crankshaft and the inner surface of the blade 

adapter with light oil. 

9. Install the blade adapter on the crankshaft 

with the “star” away from the engine. See 

Figure 11. Place the blade with the side 

marked “bottom” (or with part number) facing 

away from the adapter. Align the blade bell 

support over the blade with the tabs in the 

holes of the blade and insert the hex bolt.

10. Tighten the hex bolt to the torque listed 

below: 

Blade Mounting Torque
Center Bolt 450 in. lb. min., 600 in.lb. max.
To insure safe operation of your unit, ALL nuts 

and bolts must be checked periodically for 

correct tightness. 
Off-Season Storage

The following steps should be taken to prepare 

your lawn mower for storage.

1.  Clean and lubricate mower thoroughly as 

described in the lubrication instructions.

2. We do not recommend the use of a pressure 

washer or garden hose to clean your unit.

3. Refer to engine manual for correct engine  

storage instructions.

4. Coat mower’s cutting blade with chassis 

grease to prevent rusting.

5. Store mower in a dry, clean area. Do not 

store next to corrosive materials, such as 

fertilizer.

NOTE: When storing any type of power equip-

ment in a poorly ventilated or metal storage 

shed, care should be taken to rust-proof the 

equipment. Using a light oil or silicone, coat the 

equipment, especially cables and all moving 

parts of your lawn mower before storage.