Jet J-720R, Operating Instructions And Parts Manual

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12.0 User-maintenance
Regularly scheduled maintenance is crucial to ensure a long service life for your machine. The schedule below shows
general cleaning, lubrication points and coolant replacement information for the J-1230R Radial Arm Drill Press. Item
numbers are located in Figures 12-1 through 12-5. Using proper eye protection, clean parts using a metal brush and
a rag dipped with oil (Mobil Vactra AA or equivalent).
Push E-stop button and power off before lubricating. Avoid
direct skin contact with lubricating fluids or coolants, and follow local regulations for proper disposal of used
lubricants.
12.1 General Cleaning
No. Item Action Interval Lubricant *
1 Column Clean and lightly wipe with oil
Daily Mobil Vactra
TM
oil AA
2 Arm Rail Clean and lightly wipe with oil
Daily Mobil Vactra
TM
oil AA
3 Spindle and Quill Clean and lightly wipe with oil
Daily Mobil Vactra
TM
oil AA
4 Box Table Clean and lightly wipe with oil
Daily Mobil Vactra
TM
oil AA
5 Base Remove shavings; clean and wipe with oil
Daily Mobil Vactra
TM
oil AA
6 Ball Screw Clean with metal brush and oiled rag
Weekly Mobilux
TM
Grease No. 3
7 Spindle motor Blow dust from fan housing with compressed air Periodically --
8 Arm raising motor Blow dust from fan housing with compressed air Periodically --
Table 5
12.2 Lubrication
No. Item Location Action Interval Lubricant *
9 Oil Cup (for
arm/column
contact)
Top and bottom
of arm base at
column Add lubricant to full capacity. Daily
Mobil Vactra TM oil AA
10 Oil Cup (for
spindle)
Top of drill head Add lubricant to full capacity. Daily
Mobil Vactra TM oil AA
11 Oil Cups - 3 (for
head/arm
contact)
Right and left
sides of drill
head Add lubricant to full capacity. Daily
Mobil Vactra TM oil AA
12a
thru
12c Arm Raising
Worm Gear Rear of column Top off at fill hole (12a). Fill to sight
glass full level (12b). Check sight
glass daily
Mobil Vactra TM oil AA
Replace annually; drain at (12c). Use
sight glass to fill to capacity.
NOTE: Put
pipe thread compound on drain plug
before re-installing.
Capacity = 2 liters (1/2 gal.)
Once per year
13 Coolant Reservoir in
base
Monitor for cleanliness and efficiency.
Replace when dirty or when cutting
becomes inefficient. Drain by removing
plug in side of base (13a). Pour coolant
through filter screen in base trough
(13b); fill to about 5mm (3/16”) below
screen.
Capacity = 30 liters (8 gal.)
Frequent
inspection; top
off as needed Use high quality coolant
of choice
14 Grease nipple
(for spindle)
On spindle Lubricate with lube gun Daily Mobilux TM Grease No. 3
15 Rack On arm Lubricate with lube gun Every 3 days
Mobil Vactra
TM
oil AA
16a
thru
16c Gearbox Top right side of
drill head Top off at fill hole (16a). Fill to sight
glass full level (16b). Check sight
glass daily
Mobil Vactra
TM
oil AA
Replace annually; drain at (16c). Use
sight glass (16b) to fill to capacity.
NOTE: Put pipe thread compound on
drain plug before re-installing.
Capacity: 4.5 Liters (1.2 gal.)
Once per year
Table 6
* NOTE: These are recommendations; equivalents may be used. If switching brands of lubricants, prevent
compatibility issues by thoroughly draining and, if possible, cleaning the reservoir before filling with the replacement
brand.