Service and Maintenance

5.4 REPLACING DRIVE BELTS

1.Remove large belt guard (three 5/16" bolts).

2.Loosen bolts on hydraulic pump and remove belt, if equipped.

3.Lift belt idler pulley off drive belt and remove drive belt from pulleys.

4.Install new belt on pulleys and lower belt idler. Check alignment of pulleys and adjust if needed.

5.Adjust the eyebolt that anchors the idler spring to ad- just belt tension. Tighten the eyebolt until the belt de- flection at the center of the belt is 7/16" when a 20 lb load is place against the belt (See Fig. #9).

6.Replace hydraulic pump belt, if equipped. Readjust hy- draulic pump belt tension by sliding the hydraulic pump in the mounting slots. Tighten bolts.

7.Replace belt guard.

8.Depress foot clutch pedal, start engine, release foot clutch pedal to engage belt, and test unit. Readjust pulleys and belt tension if needed.

7/16" Deflection

5.5 CLEARING PLUGGED ROTOR

WARNING

If the machine becomes plugged, depress the foot clutch pedal, shut off the engine, disconnect the spark plug wire, and allow the machine to come to a complete stop before clearing debris. Do not operate the machine without proper guards and screens in place.

CAUTION

Remember to use rotor shaft lock when working on rotor.

Feeding too large or too much chipable material at once may plug the chipper. To clear plugged rotor, proceed as follows:

1.Depress foot clutch pedal and stop engine. Release foot clutch pedal when engine is stopped.

2.Remove the two 3/8" retaining bolts holding the access cover to the main frame assembly.

3.Lift up rotor access cover.

4.Clean the debris out the chipper rotor. Turn the rotor by hand to be sure it is free to rotate.

5.Close rotor access cover and replace bolts.

6.Depress foot clutch pedal, and start engine. Release foot clutch pedal when engine is running to engage drive belt. Resume operation.

Fig.#8

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6" & 8" Bear Cat Chipper Operator’s Manual

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Hayter Mowers 72620, 71620, 74824 manual Replacing Drive Belts, Clearing Plugged Rotor

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