Jet Elite E-1236VS, Operating Instructions And Parts Manual

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17
E-1236VS
Fig. 22
W
Y
X
17.
Tailstock Quill Traverse Handwheel
(X, Figure
22): Rotate clockwise to advance the quill and
counterclockwise to retract it. Fully retract it to eject a
center or drill chuck.
16.
Tailstock Clamping Lever
(Y, Figure 22): Lift up to
lock. Push down to unlock.
Fig. 23
Foot break
18.
Foot Brake
(Figure 23): For emergency shutdown of
all lathe functions. The connecting rod mechanism is
in the bed stand, and activates a brake strap at the
main motor. (Caution: Lathe still has power.) The foot
brake is not intended for normal stopping of the lathe.
Overuse can result in hastened wear of brake parts.
10.0 OPERATION
The operator should consult shop manuals such as
“Machinery’s Handbook” for cutting speeds and feeds
appropriate to specific workpieces. Correct feed depends
upon material to be cut, cutting operation, tool type,
chucking rigidity, depth of cut, and desired surface quality.
IMPORTANT:
Allow a break-in period for the new lathe so
that gears and bearings can adapt; do not run the lathe
above 560 RPM for the first six hours of operation.
!
The following points must be observed when
operating the lathe:
• Never turn any handles or levers when spindle is
at high speed.
• Change spindle speed only after spindle stops.
• Change feed rate only when spindle is at low
speed or is stopped.
• Never exceed maximum speed limitation of the
work holding device.
• Before starting spindle, check that each handle
or lever is at correct position to ensure normal
engagement of gears. The spindle direction control
lever should be at neutral position.
• If the brake becomes ineffective, turn off machine
and adjust brake immediately.
• When operating spindle direction control lever,
always turn it to correct position; never use “pre-
position” for cutting at a reduced speed.
• Jaw teeth and scroll must be fully engaged, to
prevent the jaws from breaking and being thrown
from chuck (see Figure 24).
Improper
engagement
!
Fig. 24