Jet JTM-949EVS/230, Operating Instructions And Parts Manual

Page: 21 / 48

21
11.0
Maintenance
Before any intervention on the machine, disconnect it from electrical supply by pulling out
plug or switching off main switch. Failure to comply may cause serious injury.
11.1
Lubrication
The milling machine is equipped with an automatic lubrication system. The system lubricates the lead screws and ways.
An oil cup and grease nipple on the mill head provide lubrication for the spindle bearings and back gear mechanism.
Refer to Figures 23 and 24 for lubrication requirements and access points.
Key Description Recommended Lubricant Action
A Spindle bearing oil cup Mobil DTE Oil Light, or equivalent Service daily.
B Automatic lube system Mobil Vactra Oil #2, or equivalent Check oil daily – add if required.
C
Knee leadscrew grease
nipple
Mobilith AW2, or equivalent Service once each week.
D Back gear grease nipple Mobilith AW1, or equivalent
Service weekly when operating in
back gear mode.
Table 4: Lubrication Points
Figure 23
Figure 24
Figure 25
11.2
Periodic maintenance requirements
During operation, periodically vacuum and brush chips
and debris from machine.
Periodically operate knee and table lead screws through
full range of movement to evenly distribute lubricant
(particularly when applied using the “one-shot” system).
Periodically apply light machine oil to work table and
other exposed metal surfaces to prevent rust or
corrosion.
Periodically remove vent panels to check pulleys and
belts for unusual wear or grooving.
NOTE: Operators
should vary speed occasionally to prevent formation of
grooves on pulley surfaces.