Maintaining your chipper shredder warning – Bolens 452 Thru 465 User Manual

Page 12

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12

5

Maintaining

Your Chipper

Shredder

WARNING

Always stop engine,
disconnect spark
plug, and ground
against engine
before cleaning,
lubricating or
doing any kind of
maintenance on your
machine.

Figure 5-1

Figure 5-2

General Recommendations

1. Always observe safety rules when performing

any maintenance.

2. The warranty on this chipper shredder does not

cover items that have been subjected to operator
abuse or negligence. To receive full value from war-
ranty, operator must maintain the chipper shredder
as instructed here.

3. Changing of engine-governed speed will void

engine warranty.

4. All adjustments should be checked at least once

each season.

5. Periodically check all fasteners and make sure these

are tight.

WARNING: Always stop engine,
disconnect spark plug, and ground
against engine before cleaning,
lubricating or doing any kind of
maintenance on your machine.

Lubrication

1. Lubricate the release rod and spring with light oil once

a season. See Figure 5-1.

2. Lubricate the pivot points on the hopper assembly with

light oil once a season. See Figure 5-1.

3. Lubricate the pivot points on the discharge chute with

light oil once a season. See Figure 5-1.

4. Follow the accompanying engine manual for lubrica-

tion schedule and instruction for engine lubrication.

Engine Care

1. Maintain oil level as instructed in engine manual.
2. Service air cleaner every 25 hours under normal

conditions. Clean every few hours under extremely
dusty conditions. Refer to engine manual.

3. Clean spark plug and reset the gap once a season.

Check engine manual for correct plug type and gap
specifications.

4. Clean engine regularly with a cloth or brush. Keep the

cooling system (blower housing area) clean to permit
proper air circulation. Remove all grass, dirt and
combustible debris from muffler area.

Removing The Flail Screen

If the discharge area becomes clogged, remove the flail
screen and clean area as follows:
1. Stop the engine and make certain the chipper shred-

der has come to a complete stop.

2. Disconnect spark plug wire from spark plug and

ground against the engine.

3. a. Remove the bag and two wing knobs on each side

of the chute deflector. See Figure 5-2.

b. Lift the chute deflector up to keep it out of the way.
c. Remove the two hairpin clips from each clevis pin

which extend through the housing and remove pins.

d. Remove the flail screen from inside the housing

and clean the screen by scraping or washing with
water. See Figure 5-2.

4. Reinstall the screen, making certain to reassemble the

flail screen with the curve side down.

5. Reattach the chute deflector with the hardware

previously removed and connect the bag to unit.

Sharpening Or Replacing Chipper

Blades

1. Disconnect the spark plug wire and ground against the

engine.

2. Remove the flail screen as instructed in the previous

section.

3. Remove the chipper chute by removing three hex nuts

and washers.

4. Remove the chipper chute support brace (Model

Series 460) from the frame by removing the hex bolts.

5. Rotate impeller assembly by hand until you locate one

of two chipper blades in the chipper chute opening.

*Model 462 Shown

Lubricate these

points before

reassembly.

A

B

C

D

*Model 462 Shown

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