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Service and maintenance-cont – Echo 73413 Owners Manual v.2 User Manual

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9. Replace roll pin with a new 1/2 x 2" pin, P/N 15137.

10. Return the complete rotor assembly to the chipper frame with an overhead hoist or

lifting device.

11. Slide rotor back until front roll pin is tight against the front bearing.

12. Lock the front bearing and install the four 1/2 inch bolts on each bearing to secure

them to the frame. Tighten bolts to 75 ft. lbs.

13. Check and adjust chipper anvil if needed. Lock rear bearing.

14. Slide bushing onto shaft with flange against bearing and lock bushing to shaft.

15. Attach large pulley to bushing.

16. Replace drive belt on pulleys and lower belt idler. Check alignment of pulleys and

adjust engine if needed.

17. Check belt tension before start-up. Adjust the eyebolt that anchors the idler spring

to adjust the belt tension. Tighten the eyebolt until the belt deflection at the center of
the belt is 7/16" when a 20 lb. load is placed against the belt (see figure 6, page 14).

18. Close cover and replace bolts.

19. Replace belt guard and resume operation.

20. Depress foot clutch pedal, start engine, release foot clutch pedal to engage belt, and

test unit. Readjust pulleys and belt tension if needed.

The chipper has three greaseable bearings and pivots that require grease every 50 hours:

• Two bearings on the rotor shaft.
• One grease zerk on discharge chute.

Check wheel bolt torque every 10 hours of towing use.

Check air pressure in tires every 10 hours of towing.

Check and repack wheel bearings with grease every 12 months.

Connect safety chains when towing.

Tighten and secure trailer hitch bolts.

Check trailer lights.

Service and Maintenance-Cont

Greaseable Bearings and Pivots

Trailer Service Tips

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