Jet GHB-1330 Operating Instructions Manual page 4

Caution:
The machine is heavy!
GHB-1330......600kg
GHB-1340A....650kg
Assure the sufficient load capacity
and proper condition of your lifting
devices.
Never step underneath suspended
loads.
Use a machinist's precision level on
the bed ways and check to make sure
that the lathe bed is level.
Loosen mounting bolts, shim and
tighten mounting bolts if needed.
The lathe bed must be level to be
accurate.
5.3 Mains connection
Mains connection and any extension
cords used must comply with
applicable regulations.
The mains voltage must comply with
the information on the machine
licence plate.
The mains connection must have a
16 A surge-proof fuse.
Only use power cords marked
H07RN-F
Connections and repairs to the
electrical equipment may only be
carried out by qualified electricians.
Connection takes place on the
appropriate terminal in the electrical
cabinet on the back of the machine.
5.4 Initial lubrication
The lathe must be serviced at all
lubrication points and all reservoirs
filled to operating level before the
lathe is placed into service!
Failure to comply may cause serious
damage to the lathe!
(see chapter 8 for lubrication)
After one month of operation the oil
must be changed on headstock,
gearbox and apron.
5.5 Starting operation
Before starting the machine check
the proper chucking (see chapter 6.2)
You can start the machine with the
forward/ reverse lever (I, Fig 6).
Push the lever
- right and down for forward rotation
-right and up for backward rotation.
Return the lever to its 0-position to
stop the machine.
The spindle jog button (B, Fig 5)
advances the spindle momentarily.
The emergency stop button (A, Fig 5)
stops all machine functions.
Attention:
Lathe still has electric power.
Turn emergency stop button clockwise
to reset.
Note:
The pulley cover (H, Fig 3) and the
chuck guard (J) are limit switch
protected. They must be closed to
operate the machine.
5.6 Break in procedure:
To allow time for the gears and
bearings to break-in and run
smoothly, do not run the lathe above
755 rpm for the first 6 hours.
6. Machine operation
Warning:
Setup work may only be carried out
after the machine is protected
against accidental starting.
With pressed emergency stop
button.
Measurements and adjustments may
be carried out when the machine is at
a standstill only.
Check the save clamping of the work
piece before starting the machine.
Never stop the rotating chuck or work
piece with your hands.
Never place your fingers in a position
where they could contact any rotating
parts or chips.
Remove cutting chips with the aid of
an appropriate chip hook when the
machine is at a standstill only.
Always close the chuck guard and
pulley cover before you start the
machine.
Choose a small spindle speed when
working unbalanced work pieces and
for threading and tapping operations.
Never cut magnesium-
high danger to fire!
In case of danger push the
emergency stop button.
6
6.1 Controls
Fig 5
A....Emergency stop button
B....Spindle jog button
C....Power indicator light
D....Feed rod/ lead screw selector
E....Spindle High/ Low speed lever
F....Spindle 4 speed select lever
G....Feed reversing lever
H....Feed rate selector
Fig 6
I.....Forward/ Reverse On/ Off lever
J....Top slide rotation lock nuts
K....Top slide lock
L....Cross slide lock