Echo 74554 Owners Manual v.4 - Manual (Page 19)

15 5 INCH CHIpper
SERVICE & MAINTENANCE
1. Remove the one 3/8" retaining bolt holding access
cover to main frame assembly. Tilt access cover over
to allow rotor access.
2. Remove large belt guard.
3. Remove belt idler pulley and remove drive belt from
pulleys.
4. Remove the bushing and pulley from the rotor shaft
using the push bolts from the bushing.
5. Remove the two 1/2" bolts on each rotor bearing.
6. Pound 1/4" roll pin out of the rotor shaft on front
bearing.
7. Lift the rotor assembly completely out of the frame
with an overhead hoist or lifting device. The complete
rotor assembly is 140 lbs.
8. Remove both bearings with a puller when the rotor
assembly is out of the frame and place new bearings
on rotor shaft.
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" 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. Close cover and replace bolts.
18. Replace belt guard and resume operation.
5.11 removing THe roTor
Figure 5.9 Grease zerk on left side of feed roller
Figure 5.10 Grease zerk on right side of feed roller
Figure 5.8 Grease zerk on rotor shaft
Every 8 hours, lubricate PTO cross journals. Make 1.
sure grease purges through all four bearings.
Every 8 hours, lubricate PTO inner tubes. Telescoping
2.
members must have lubrication to operate successfully.
Telescoping members without fittings should be pulled
apart and grease should be added manually with a
brush.
5.10 PTo lubriCaTion
8 h 8 h 8 h
8 h 8 h
BEFORE INSPECTINg OR SERvICINg ANy PART OF ThIS MAChINE, ShUT OFF POWER SOURCE,
ANd MAKE SURE ALL MOvINg PARTS hAvE COME TO A COMPLETE STOP.
Warning
Every 8 hours, lubricate the PTO shield retaining 3.
bearing. Molded nipples on the guard near each guard
bearing are intended as grease fittings and should be
lubricated every 8 hours of operation.