Castle LB-23 Operator Manual - Manual (Page 19)

Maintenance
Head Lubrication
The head should be oiled every 30 to 40 hours of usage. The head, once it is
broken in beyond its initial start-up, should run very quietly with no loud metallic
racket or grinding.
ƒ In order to maintain the machine in good working order, the head should
never be run dry. The head uses oil impregnated bushings that need to
stay oiled for optimal performance.
ƒ The oil that is used in lubricating this machine consists of two
ingredients: Non-Detergent, 30 WT Motor Oil and Slick 50. The two are
mixed at a ratio of 4:1 respectively.
ƒ Loosen the two plastic, tri-armed knobs that hold down the bit cover on
top of the machine. Remove the bit cover by lifting and sliding it to your
right simultaneously.
ƒ Locate the 4 lubrication holes in the top of the head. These may be partly
covered by the spindle housings, requiring a slight repositioning of the
housings
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