Jet Tools JTM-4VS operating instructions Periodic Maintenance Requirements

Maintenance

Before any intervention on the machine, disconnect it from the electrical supply by pulling out the plug or switching off the main switch! Failure to comply may cause serious injury.

Lubrication

The milling machine is equipped with a “one-shot” 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 28 and 29 for lubrication requirements and access points.

Key	Description	Recommended Lubricant	Action
A	Spindle bearing oil cup	Mobil DTE Oil Light, or equivalent	Service daily.
			Check oil daily – add if required.
B	One-shot lube system	Mobil Vactra Oil #2, or equivalent	Pull lube handle every hour
			during operations.
C	Knee leadscrew grease	Mobilith AW2, or equivalent	Service once each week.
	nipple
D	Back gear grease nipple	Mobilith AW1, or equivalent	Service weekly when operating
			in back gear mode.
		Figure 27: Lubrication Points
		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
	Figure 28	and belts for unusual wear or grooving. NOTE:
		Operators should vary speed occasionally to prevent

formation of grooves on the pulley surfaces.

Figure 29

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