BICO VD Chipmunk - Manual (Page 3)

Bico, Inc.
3116 Valhalla Drive, Burbank, CA 91505
Tel. (818) 842-7179 – Fax (818) 842-7976
[email protected]
ADJUSTMENTS
Heavy bronze bearings are sealed against dust and dirt, and are lubricated by grease cups so that
no special greasing tools are required. To tighten the bearings, loosen the two square headset
screws (behind the cap) a fraction. Turn the four hex-head bolts down a fraction at a time. Check
tightness by turning the pulley or flywheel by hand. There should be a very slight drag. To loosen,
reverse the procedure. Bolts must be tight, but not too tight. USE EXTREME CAUTION AS
OVER-TIGHTENING THE SQUARE OR HEX HEAD SCREWS WILL BREAK THE CAPS. The
caps will radiate some heat, which is normal. Bearings should not be run loose or excessive wear
will result on the bearing, shaft, etc. Check the bolts on a regular basis, as the machines vibration
will have a tendency to loosen the various bolts.
MAINTENANCE
It is of the greatest importance that the crusher is kept properly lubricated at all times (use any
good quality hi-temperature grease. We use a lithium-based grease). Turn down the grease cups
1/4 of a turn at least once a day, or more if the machine is in constant use. This will protect the
bearings. Oil the adjusting blocks and toggle block approximately once a week. An oil cup is
provided for this purpose at the front of the spacer casting and at the rear toggle block.
When the plates are worn to a point where readjustment is necessary, they can be adjusted. To
do this simply insert the set of shims provided with each crusher between the jaw and jaw plate.
This will compensate for wear.
For still further adjustment, and for resetting the adjusting blocks, loosen the small setscrew at the
left side of the crusher. Turn hand wheel to the right, which will allow the adjusting block to move
forward.