BXS Series
3PH Self-feed Chipper
Service and Maintenance
35
8.4 PTO Shaft Maintenance
Grease the PTO shaft every 8 hours.
00584
Fig. 38 –
PTO Shaft
The PTO shaft is designed to collapse and extend as the
machine goes through its operational range.
Heavy-duty plastic shielding encloses the driving components.
As a safety measure, it is designed to stay stationary as the
drive shaft turns.
Annual disassembly, cleaning and inspection is recommended
to make sure that all components function as intended.
Shear Bolt
The PTO shaft has a shear bolt on the implement end, at the
input yoke. The shear bolt is designed to break in the event the
drive system is overloaded to protect other critical components.
00870
Fig. 39 –
PTO Shear Bolt
The drive system is designed to function well without failing the
shear bolt. If it does fail, generally it is because material is being
fed too fast or something very hard has been jammed into the
rotor or between the blades.
Replace broken shear bolts with one the same size. Always
determine the cause of the problem and correct it before
resuming work. Shear bolts are available from your distributor
or dealer.
8.5 Twig Breaker
Inspect the twig breaker for damage, bent or missing teeth
every 50 hours.
The twig breaker is located inside the lower rotor housing.
Material in the chipper is broken up into smaller pieces as the
discharge paddles rotate past it.
A damaged or worn twig breaker should be replaced.
00871
Fig. 40 –
Twig Breaker
