Hardinge SUPER-PRECISION HC - Page 22

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To fill reservoir, disconnect air source or set air
pressure at zero and remove filler plug "B", Figure
68. Fill to bottom of filler hole with Mobi l Vactra Oil
#2 or equivalent. Maintain oil level above sight
window "A", Figure 69.
Sight window " G' ', Figure 69, will visi bly show oi l
passage through unit. Brass rod in window wil l move
up and down with changes in air flow .
For effective performance, DRAIN FILTER RESER-
VOIR WEEKLY. Open drain cock "D", Figure 68, and
permit flow of air until mist has stopped . If excessive
water problem exists, add heavy duty filter to air
supply line .
Incoming air for lubricat ion and collet closer or
threading attachment operation is filtered at reser-
voir . CLEAN FILTER ELEMENT EVERY SIX MONTHS.
To clean filter:
Disconnect air line and remove cover " E", Figure
68, with face spanner wrench. Remove nut "C", Fig-
ure 69, strap " H" and shroud "J" . Remove nut, wash-
er and filter "F", Figure 70. Wash filter with Varsol
and blow out with compressed air. Apply lubri cant to
O-ring on cover " E" , Fig ure 68, when replacing .
FOR REPAIRS TO THIS UNIT, SEE SEPARATE IN-
STRUCTIONS AND PARTS LIST, FORM M-30.
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Figure 68- Lubro-Control Unit
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Figure 69 - Filter Removal
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Figure 70 - Filter for Lu bro - Control Unit