BXS Series
3PH Self-feed Chipper
Troubleshooting
39
9. Troubleshooting
The following table lists some problems that may be
encountered, with possible causes and solutions.
If a problem persists after reading through the Troubleshooting
section, contact your local dealer, distributor or Wallenstein.
Have the serial number ready.
Problem
Cause
Solution
Rotor does not turn
Obstructed discharge.
Clear debris from discharge chute.
Rotor plugged.
Inspect and clear chipper hopper lower rotor housing and rotor.
Broken shear bolt.
Replace it with a shear bolt that is the correct size and hardness. See the
chipper Parts Manual.
Material feeding in too
slow
Engine or rotor speed to low.
Set throttle to increase rotor rpm.
Blades or knives are dull or clearance is incorrect.
Check rotor and ledger blades. Rotate, sharpen or replace. See
Rotor blade knife edge angle incorrect.
Resharpen the rotor knives to specified 45° angle and check that blade is
installed properly. See
.
Obstructed discharge.
Clear debris from discharge chute.
Unusual machine
vibration while
operating
Broken or missing rotor blade.
Rotor may be bent.
Check for rotor wobble. Replace the rotor.
Rotor bearings failed.
Replace the rotor bearings.
Loose fasteners.
Tighten fasteners to the correct torque. See
PTO shaft yokes are out of phase.
(It is recommended that Binacchi® PTO shafts are
used to prevent this from occurring).
Set the yokes on each end of the PTO shaft to the same phase.
Poor Chip Quality
Dull blades.
Check rotor and ledger blades. Rotate, sharpen or replace. See
Poor quality material.
Material is small or rotting. Mix with higher quality material.
Space between the rotor blades and ledger knife is
too large.
Use the ledger guide tool to check the clearance. See
Machine requires
excessive power or
stalls
Obstructed discharge.
Clear debris from discharge chute.
Feeding in too much material.
Feed smaller amounts into the chipper hopper..
Feeding material too quickly.
Feed larger material slowly into the chipper hopper.
Rotor plugged.
Inspect and clear chipper hopper lower rotor housing and rotor.
Green material does not discharge.
Allow material to dry or alternate between dry and wet material.
Space between the rotor blades and ledger knife is
too large.
Use the ledger guide tool to check the clearance. See
Dull blades.
Check rotor and ledger blades. Rotate, sharpen or replace. See
PTO shear bolt breaking
Tractor cruise control function is on.
Turn off the tractor cruise control.
Rotor knives are dull.
Rotate, sharpen, or replace the rotor knives. See
Space between the rotor blades and ledger knife is
too large.
Use the ledger guide tool to check the clearance. See
Tractor PTO speed is set too low.
Increase the PTO speed to 540 or 1,000 rpm.
PTO shaft angle is incorrect.
Adjust the PTO shaft angle to 15° or less from horizontal. See
.
Shear bolt is incorrect.
Replace it with a shear bolt that is the correct size and hardness. See the
chipper Parts Manual.
Chipper is not on the ground.
Place the chipper on the ground.
Three-point hitch is raised or lowered, while the
chipper rotor is turning.
Wait for the chipper rotor to stop turning before raising or lowering the chipper.
Tractor PTO spline and chipper PTO spline are not
on parallel planes.
Adjust the toplink to align the tractor and chipper PTO spline planes.
PTO shaft is too long.
Cut the PTO shaft to the correct length. See
.
PTO shaft yokes are out of phase.
(It is recommended that Binacchi® PTO shafts are
used to prevent this from occurring).
Set the yokes on each end of the PTO shaft to the same phase.