Use And Care Manual

ManualsBrandsGenerac PRO ManualsLog Splitters & ChippersGenerac® PRO 5" 420cc Gas Chipper/Shredder

Owner’s Manual for Chipper/Shredder 25

Maintenance and Troubleshooting

Figure 4-5. Side Bearing Grease Fitting

2. See Drive Belt Maintenance. Remove the belt

guard to access the drive side bearing.

3. Apply three pumps or fewer of quality general-pur-

pose lithium grease with a hand-pumped grease

gun to each grease fitting.

4. Inspect the side bearing collar set screws (B) for

tightness. There are two set screws for each side

bearing. Reset them with medium strength thread-

locker if loose.

5. Connect spark plug wire.

Drive Belt Maintenance

Checking and Adjusting Belt Tension

1. See Figure 4-6. Remove support hardware (A) on

top of and underneath belt guard and place aside.

Figure 4-6. Drive Belt Guard Bolt Locations

2. See Figure 4-7. Place a straight edge on bottom of

belt from clutch pulley to drive pulley.

Figure 4-7. Belt Tension

3. Push belt upwards using approximately ten pounds

of force. Belt should deflect away from straight

edge approximately 0.375 in (9.5 mm).

• If belt deflection is close to 0.375 in (9.5 mm) as

desired, adjustment is not needed. If belt deflection

is out of range, proceed to step 4.

4. See Figure 4-8. Loosen the four engine bolts (B)

securing the engine base to the frame.

Figure 4-8. Engine and Tension Adjustment Bolts

NOTE: If replacing the belt, loosen tension adjustment

bolt counterclockwise to move engine back far enough to

remove belt. Install a new belt over clutch and drive pul-

ley and perform tension adjustment.

5. Tighten or loosen tension adjustment bolt (C) as

necessary to achieve proper tension.

6. Tighten engine bolts and install belt guard when

adjustment is complete.

NOTE: Inspect and adjust drive belt every hour for the

first five hours of operation after a new belt is installed.

Belt Alignment

NOTE: Never make belt adjustments by moving clutch

on engine shaft.

1. See Figure 4-9. Place one end of a straight edge

against the face of the drive pulley, with other end

near top portion of clutch, next to the belt but not

touching the clutch.

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WARNING

(000415)

Accidental start-up. Before servicing or detangling, shut

down unit, allow to cool, remove keys, and disconnect spark

plug wire(s). Failure to do so could result in death, serious

injury, or equipment damage.

006509

006495

006489