Minster IOI, Руководство по обслуживанию

Страница: 38 / 92

Air supply to the press must be clean, dry, and of suffi-
cient volume for proper device actuation. Supply pres-
sure should be at least 80 to 125 psi (5.5 to 8.6 Bar).
(See section entitled “Air Supply Connections,” page
C-9.) In addition to proper air supply pressure, it is the
customer’s responsibility to install an approved air
relief valve — compatible with the pneumatic system —
in the facility’s air supply line if the air pressure exceeds
125 psi (8.6 Bar).
On Model 101 OBI/OBS Series presses, the pneumatic
system is used for the air operated clutch/brake and fly-
wheel brake (standard). The pneumatic system may also
include a counterbalance cylinder, die cushion, slide
adjustment motor, and air blow-off (for part ejection).
Additional pneumatic system components may include
air filter(s), air tank(s), air lockout valve(s), air pressure
regulator(s), solenoid air valves, and air pressure
switches. The size and amount of supporting pneumatic
equipment (such as piping, pressure regulators, pres-
sure switches) varies with the type and number of basic
air components installed by Minster and may include
optional items needed for the operation and control of
customer-furnished equipment. The following descrip-
tions apply to typical pneumatic components usually
installed on Model 101 OBI/OBS Series presses.
AIR LOCKOUT VALVE
An air lockout valve is provided on the press to control
the air supply to the press. It is normally on the left-
hand rear of the press. (See Figure 2E.) Shut OFF the
air supply to the press, close and “lock” the valve, and
relieve any residual pressure before attempting to ser-
vice any pneumatic system component. Conversely,
make certain the valve is fully open and air pressure
restored before attempting to operate the press.
E - 3
SERVICING THE
PNEUMATIC SYSTEM
Drain Cock
Air Filter
Air Lockout Valve
Drain Cock
Counterbalance Air
Tank (If Supplied)
Fusible Plug
Safety Relief Valve
Clutch/Brake
Pressure Switch
Counterbalance
Air Regulator
Figure 2E. Pneumatic system components located inside press frame.
Plant Incoming Air