Jet GH-1640ZK, Operation And Maintenance Instructions

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4. Apron – Oil must be between indicator marks
in the oil sight glass (G, Figure 11). Top off
with SAE 20W oil. Unscrew oil plug (H, Figure
11) to fill. To drain, remove drain plug on the
underside of apron. Drain oil completely and
refill after the first three months of operation.
Then, change oil in the apron annually.
Figure 11 – Lubrication points
5. Saddle – The anti-dust felt on both ends of the
saddle (Figure 12) should be cleaned weekly
with kerosene. If the felt becomes damaged,
replace it.
Figure 12– Anti-dust felt
6. V-Belts – Regularly check and adjust the
tightness of the v-belts to prolong their service
life. See
section 13.5, Belt adjustment and
replacement .
9.1 Ball oiler locations
All ball oilers must be lubricated with SAE-20W oil
(Mobil DTE
®
Oil Heavy Medium), as follows. Refer
to Figures 13 and 14.
7. Threading Dial – Daily lubricate two ball oilers
(J, Figure 13).
Figure 13
8. Cross Slide – Daily lubricate one ball oiler on
the handwheel housing (K, Figure 14) and
three ball oilers on the platform (L, Figure 14).
Figure 14 – Ball Oilers
9. Compound Rest – Daily lubricate two ball
oilers (M, Figure 14) on top of compound rest.
10. Tool Post – Regularly clean dirt and coolant
around the tool post to maintain its re-
positioning accuracy. Daily lubricate one ball
oiler on top the clamping hub (N, Figure 14).
11. Saddle – Daily lubricate four ball oilers (O,
Figure 14) and one ball oiler on the handwheel
shaft (P, Figure 14).
12. Leadscrew and Feed Rod – Lubricate two
ball oilers (Figure 15) once or twice per shift.