Atec 8000, Руководство по эксплуатации и обслуживанию, Страница: 32 / 80

26 Atmospheric Technology
interchangeable. Clean them with water. When replacing the outlet valve, place the
new valve in location and note there is a retaining bar near the machine screw hole.
This retaining bar holds the valve in position. When replacing the inlet valve, note
that the valve holder is marked with an X in one corner. This X should be in the
lower right hand corner toward the inlet of the air chamber. Replace the head and
tighten the socket head screws. Torque to 30 inch-pounds.
WARNING
: The motor may be thermally protected and can automatically restart
when the overload resets. Always disconnect the power source before servicing.
Personal Injury and/or property damage could result.
Do not attempt to replace the connecting rod or motor bearings. If after cleaning the
unit and/or installing a new Service Kit, the unit still does not operate properly,
contact your representative, the factory, or return the pump to an authorized Service
Center.
7.2 Cartridge Filter
The operator should periodically replace the Teflon filter located in the cartridge
sample path. The replacement frequency will depend on site conditions. The filters
must be replaced when the flow rate through the cartridges cannot be maintained.
However, it is recommended that the filter be replaced before this condition exists.
The operator should periodically check the filter and determine when it needs to be
replaced. To replace the filter, turn off the main power to the sampler, remove the
four screws that fasten the top to the sampler, slide the top towards the rear of the
instrument and remove. Loosen the tubing nuts on each end of the filter housing
and remove the housing. Remove the filter by removing the retaining ring on the
filter using the hand wrenches supplied with the sampler. Replace the filter with a 10
micron Teflon filter and replace the filter housing in the sampler. Perform the
Sampler Leak Check described in Section 5.3.
7.3 Ozone Scrubber
The ozone scrubber should be replaced after approximately 100,000 ppb ozone
hours of either sampling or purging at 1 lpm. This is generally every 6-12 months
depending on the sampling frequency. The operating life in hours can be estimated
by: