Minster IOI, Руководство по обслуживанию

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WARNING
AFTER OPERATING AND LOCKING THE AIR
LOCKOUT VALVE, OPEN ALL BLOWDOWN
VALVES TO BLEED RESIDUAL PRESSURE. FOL-
LOW THE LOCKOUT PROCEDURES AS ESTAB-
LISHED BY YOUR EMPLOYER ACCORDING TO
REGULATIONS.
AIR FILTER
Moisture may enter the pneumatic system along with
the shop air supply or form within the system as a result
of temperature or humidity changes. Seasonal weather
changes can also cause large amounts of moisture to
form quickly. On Model 101 OBI/OBS Series presses,
an air filter is provided to trap moisture and foreign mat-
ter which may enter the pneumatic system with incom-
ing air. The filter is located on the left-hand rear of the
press. (See Figure 2E.) A drain cock, located at the bot-
tom of the filter, may be opened whenever filter drainage
is necessary. Before opening the drain cock, close the
air lockout valve and release system pressure.
AIR PRESSURE REGULATORS
(Ref. Figure 3E)
Air pressure regulators are provided on the press to
control the amount of air pressure to the clutch/brake
and counterbalance cylinder (if provided). A regulator is
also supplied to control air pressure to the (optional) die
cushion. Air pressure to the clutch/brake should be 55
psi (3.8 Bar) while the air pressure to the counterbal-
ance cylinder should be 35 to 45 psi (2.4 to 3.1 Bar). Air
pressure to the die cushion (if provided) is dependent
upon customer requirements. To adjust the air pres-
sure, turn the regulator handle until the desired pres-
sure is indicated on the associated air pressure gauge.
Turn the regulator handle clockwise to increase, coun-
terclockwise to decrease, air pressure.
Check the air pressure regulators during each regular
monthly press inspection. Make certain the associated
pressure gauge reads correctly and that the regulation
of pressure is accurate. Replace a worn or improperly
operating regulator with a new one.
AIR PRESSURE GAUGES
(Ref. Figure 3E)
Air pressure gauges are provided to indicate air pressure
at the outlet side of each regulator. Check the gauges
during each regular monthly press inspection. Make cer-
tain the gauges are accurate and in good condition.
SOLENOID AIR VALVES
(Ref. Figures 4E and 7E)
Electrically-actuated solenoid air valves open or close in
response to electrical impulse. They admit air pressure
into an air-operated component, or stop the flow of air,
and may also exhaust air pressure from the component.
On Model 101 OBI/OBS Series presses, a solenoid air
valve is used to control actuation of the clutch/brake, fly-
wheel brake, and air blowoff (if applicable.)
Check the operation of the solenoid air valves once each
month. Inspect for air leakage and make certain that
response is immediate and snappy. Replace the com-
plete solenoid valve if it is worn or working improperly.
E - 4
!
Counterbalance Air
Pressure Gauge
Clutch/Brake Air
Pressure Gauge
Counterbalance
Air Pressure Regulator
Clutch/Brake Air
Pressure Regulator
Figure 3E. Air pressure regulators (at rear of press.)