Minster IOI, Руководство по обслуживанию

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AIR RESERVOIR TANKS
(Ref. Figure 11E)
Reservoir tanks store a reserve of air and help to
assure proper operation of a component by minimizing
the pressure drop that occurs when a component is
actuated. Reservoir tanks should be drained of all
moisture at least once a week. Inspect the tanks peri-
odically to make certain connections are tight and that
the tanks do not leak.
SAFETY RELIEF VALVE
(Ref. Figure 11E)
The Model 101 OBI/OBS Series press pneumatic sys-
tem is equipped with a safety relief valve (located on
each air tank) that will open automatically and release
air if the air pressure becomes unusually high. When
sufficient pressure is released, the valve closes. If the
safety relief valve opens, stop the press, determine the
cause, and correct the condition before operating the
press again.
FUSIBLE PLUGS
(Ref. Figure 11E)
A fusible plug is installed in each reservoir tank to pro-
tect personnel and equipment by releasing air pressure
before it reaches a point of danger. The plug is an alloy
(mostly lead) which melts at a temperature and pres-
sure well within the safe limits of the tank and allows air
to escape.
NOTE: A spent fusible plug is not repairable and must
be replaced with an identical plug.
DRAIN COCKS
(Ref. Figure 11 E)
Drain cocks are used for draining moisture from the air
operated clutch and (optional) counterbalance cylinder
and/or die cushion reservoir air tanks. The drain cocks
provided for this purpose are mounted in the lower rear
press cavity. Before opening drain cocks, relieve the air
pressure from the pneumatic system. Open drain
cocks at least once a week — more often if necessary.
Wait for water to drain completely, then close drain
cocks fully before operating the press.
NOTE: DO NOT shut off the air by using the regulator
adjustment.
AIR LEAKS
It is important to keep the pneumatic system air tight
and in good operating condition. Correct small leaks
before they become a major problem. With pressure on
the system, some leaks may be difficult to locate
because lost air is continuously being replaced. Small
leaks may be located quickly by brushing the suspect-
ed component (tubing, fitting, etc.) with a soap and
water solution and watching for bubbles which will form
at the point where air escapes.
Include the pneumatic system in your periodic press
inspection and maintenance program.
E - 15
Drain Cock
Fusible Plug
Safety
Relief
Valve
Figure 11E. Air tank.