BlueBird S530B_968999683 - Manual (Page 27)

BLUEBIRD -27
MAIntenAnCe AnD seRVICe
Tine Replacement
Turn off engine and remove weights. 1.
Fold handle on the 424 and 530 Models. 2.
Place on workbench (Model 424 only) and chock 3.
wheels. Note direction of tine bolt. Reinstall the
bolt facing in the same direction on the Model
424 to avoid contact with weights.
Remove and replace tines by loosening stop bolt.
4.
Remove retaining bolt and old tine, insert new tine
and fasten with retaining bolt in the same direction
as it was removed. When all tines are replaced,
tighten stop bolts.
NOTE: Replace worn lock nuts to insure that bolts will
hold tines in place.
Tine Shaft Bearing
Removal and Replacement
Turn off engine and remove weights. 1.
Remove drive guard cover. 2.
Fold handle. 3.
Elevate approximately 4", block and chock rear 4.
wheels.
Manually cycle the drive chain for access to
5.
master link.
Turn chain idler adjustment screw counter
6.
clockwise to loosen the chain.
Remove the master link and free rotor sprocket.
7.
Remove the tine rotor shaft bearing bolts (4). 8.
Remove chain scraper bolts (2) and chain scraper 9.
(on Model 424 only).
Remove the rotor shaft assembly.
10.
Remove outer rotor bearing by loosening the set 11.
screw in the collar.
Reverse steps to reinstall.
12.
Refer to sections “Chain Removal and 13.
Replacement” and “Adjusting Chain Tension”
for chain replacement and adjustment of chain
tension.
Tines
Tine Wear
After the BlueBird Aerator has been used for
sometime, the tines will wear. When this happens
aerating performance diminishes. Inspect tines using
the drawing, replace when at minimum length or
before. (Tines are 5" when new.)
Unlock collar (best accomplished by using a 14.
hammer and pin punch). Insert pin punch into the
hole next to the set screw and, using the hammer
and with moderate striking, hit collar so that it
rotates in the opposite direction the rotor would
normally turn.
Reverse steps to reinstall.
15.
Refer to sections “Chain Removal and 16.
Replacement” and “Adjusting Chain Tension”
for chain replacement and adjustment of chain
tension.
8060-011
Check tines for wear
8060-012
Unlock inner bearing
4 3 /
8
" (11.1 cm)
Minimum