38
4. Insert the retainer inside the gasket
(outer lip of retainer against gasket) as
shown.
5. Slide the gasket and retainer assembly
onto the center stud of the door plate
and secure it finger tight (firm). Do not
use wrench.
Every 6 Months
The pressure relief (safety) valve, located on the
back of the cabinet, releases excess pressure
(over 45 psi) from the chamber.
To check the valve for proper operation:
1. Run an UNWRAPPED INSTRUMENTS
cycle with no load in the chamber.
2. When the pressure reaches 30 psi (206
kPa), pull the ring on the pressure relief
valve for about 3 seconds. Do not hold
the valve open. Steam should freely
discharge from the valve outlet.
3. If valve malfunctions, the valve must be
replaced. Call for authorized service.
4. Cancel cycle after checking valve to
prevent overheating.
OPERATOR MAINTENANCE
Figure 29
Pressure Relief Valve
Warning
Burn Hazard: Steam blow-off will
be discharged when the ring on
the relief valve is pulled. To
prevent possible burns from
steam discharge, keep away from
the valve. Use pliers to pull the
valve ring—do not pull ring
with fingers. Wear protective
gloves.
Note
If traces of steam continue to
escape through the valve, the
valve has not re-seated properly.
Open and close the valve quickly
(several times if necessary) by
pulling the ring and letting it snap
closed.
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