Jet Elite 1700 Series, Operating Instructions And Parts Manual, Page: 18 / 68

18
1700 Series Lathe
Fig. 21
9.8 TAILSTOCK
• The tailstock can be freed for movement along the
bed by unlocking the clamp lever (A).
• Additional clamping may be obtained by tightening
the large nut (B) located in a recess below the
handwheel.
• Release this clamping nut before attempting to move
the tailstock or completion of the job that required
the extra clamping.
• The tailstock barrel can be locked by lever (C).
• The tailstock also can be offset for turning shallow
tapers or for realignment.
• Release the clamping lever (A) and adjust screw (S)
at each side of the base to move tailstock laterally
across the base.
• An indication of the offset is given by the datum
mark (D) at the tailstock end face, as picture shows.
• Tighten clamp lever after adjusting offset.
Fig. 22
9.9 END GEAR TRAIN
1. Drive from headstock to gear box is transmitted
through a gear train enclosed by the headstock
end guard. Intermediate gears are carried on an
adjustable swing-frame (M).
2. Gears must be thoroughly cleaned before fitting and
backlash must be maintained at 0.005” (0.127mm)
for correct meshing.
3. Lubricate gears regularly with thick oil or grease.
Fig. 24
9.10 DRIVING BELTS
1. To modify belt tension, remove the cover plate on
back of the headstock and adjust the screws (X) on
the hinged motor platform.
2. Ensure that the motor is correctly aligned with the
lathe axis.
3. Apply light finger pressure at a point midway
Fig. 23
A
C
S
A
M
Hexagon
nut
(by 22mm
spanner)
Hexagon socket head bolt
(by 6mm allen wrench)
C
D