Electrical Control Panel; Headstock Selectors - Jet Elite EGH-1880 Operating Instructions And Parts Manual

9.2 ELECTRICAL CONTROL PANEL

With the exception of the lathe isolator, all electrical con-
trols are fitted onto the front face of the headstock.
1. POWER INDICATOR LIGHT: When the power is on,
the indicator light glows.
2. WORK LAMP: On/Off switch.
3. COOLANT PUMP: On/Off switch.
4. Press the red mushroom-head button to stop
the main motor and also electrical supply to auxillary
services.
5. Press the green button to start the main drive motor.
The indicator lamp glows while the motor is running.
6. EMERGENCY STOP SWITCH: press in order to kill
all electric power to lathe.
1

9.3 HEADSTOCK SELECTORS

Spindle speed selector (H1, H2, H3)
1. The sixteen available speeds are shown on the lever
- operated dial (H1) in four groups, each of which is
further divided into four displayed spindle speeds.
To select your speed, rotate the outer dial until the
desired speed aligns with its corresponding color on
the plate that is affixed to the machine. Then turn
inner dial until the same color of arrow aligns with the
desired speed.
Note: Do not select speeds while spindle is
rotating or clutch is engaged - apron control must
be central (disengaged) to avoid gear damage.
To free the spindle for hand rotation, set any one of the
blank spaces on the outer dial to the mid-point of the plate
that is affixed to machine (H2).
EGH-1880 | EGH-2180 | EGH-21120
2 3 4 5 6
Fig. 15
H-L selector for gearbox (H4)
1. Following each feed rate or thread pitch on gearbox
thread and feed chart, there is a prefix of either H or
L.
2. Move H-L selector to H or L accordingly for feeding
or threading. If this lever is positioned at "–", the
headstock rotation will not be transmitted to gear-
box.
!
In High position do not exceed spindle speed of 350
R.P.M.
Apron orientation selector (H5)
1. This selector may affect the rotation orientation of
lead screw, feed rod and therefore the movement
direction of apron.
2. Forward (left-hand arrow) is used for cutting right-
hand threads. Reverse (right-hand arrow) is used for
cutting left-hand threads.
Headstock selectors
H1: Four colors correspond to 16 speeds.
H2: Four kinds of colors.
H3: Four kinds of color arrow points.
H4: Low-High selector for gearbox.
H5: Apron orientation selector.
H3
H2
H4
H5
H1
Fig. 16
15