IMPORTANT! Make sure equal amount of material is
removed from EACH blade when sharpening to maintain
proper rotor balance.
5.
Install rotor blades with leading edge out, towards the
ledger knife as shown. Tighten the blade mounting bolts to
45 lbf•ft (63 N•m)
.
01124
Fig. 37 –
Rotor blade leading edge outward
IMPORTANT! If replacing or sharpening a blade, do the
opposite one on the rotor as well to maintain rotor balance.
The clearance must be the same for each blade as it passes
the ledger knife.
7.8 Ledger Knife
Observe ledger knife performance daily. Check the ledger
knife sharpness every 50 hours.
The ledger knife is bolted inside the lower rotor housing
assembly. As the rotor turns, material fed into the chipper is
sheared off at the ledger knife by the rotor blades.
When the corner of the ledger knife facing the rotor blade rounds
over, the blade can be removed and re-installed with a different
corner facing the rotor blade. Once all four corners have been
rounded, remove the knife to sharpen or replace it.
01129
Fig. 38 –
Ledger knife inside lower rotor housing
To obtain the best chipper performance, check the clearance
between the rotor blade and stationary ledger blade every 50
hours.
Adjusting Clearance
Use the ledger setting gauge to check knife clearance
. The
thickness of the gauge is the correct ledger blade clearance.
If spacing is in excess of the gauge thickness, adjust the
clearance. If one is not available, set the clearance to 1/32–
1/16" (1 – 1-1/2 mm).
1.
Open the upper rotor housing.
CAUTION!
Risk of getting hands pinched or wedged
between lower rotor housing and rotor. Turn
rotor slowly and be aware of hand positioning.
W032
2.
Turn the rotor by hand so that one rotor blade edge is next
to the ledger knife.
3.
Slide the end of the ledger gauge down between the rotor
blade and the ledger knife.
Service and Maintenance
BXMT4224 / BXMT4238
Trailer Chipper-Shredder
40
Summary of Contents for BXMT4224
Page 51: ......
Page 52: ...www wallensteinequipment com...
