Atec 8000, Руководство по эксплуатации и обслуживанию, Страница: 31 / 80

Atmospheric Technology 25
7. Maintenance
This section describes routine maintenance procedures for the Model 8000
Automated Sampler. All other repair work should be performed by trained
personnel.
7.1 Vacuum Pump
To remove the vacuum pump from the sampler, remove the top and side covers.
Remove the inlet tube and disconnect the electrical connector. Remove the four
screws attaching the pump mounting bracket to the side of the sampler and remove
the pump.
Inspect the pump but DO NOT at any time lubricate any of the parts with oil, grease,
or petroleum products nor clean with acids, caustics or chlorinated solvents. Be very
careful to keep the diaphragm from contacting any petroleum product or
hydrocarbons. It can affect the service life of the pump.
WARNING : To prevent explosive hazard, do NOT pump combustible liquids or
vapors with these units. Personal injury and or property damage would result.
To clean or replace the filters and/or rubber gasket, remove the five screws in the
top of the unit. The filters and gasket are located beneath this top plate. Remove the
filters and wash them in a solvent and/or blow off with air and replace. The gasket
may be cleaned with water. Replace the filters in proper position and replace the
gasket. Note that the gasket and top plate will fit in one position only.
To replace the diaphragm, remove the socket cap screws from the head of the
pump. The diaphragm is held in place by two Phillips head screws. Remove
screws, retainer plate, and the diaphragm. The diaphragm will fit in any position on
the connecting rod. Replace the plate and the two Phillips head screws. Torque to
17- inch-pounds.
CAUTION : Do not raise any burrs or nicks on the heads of these screws. These
burrs could cause damage to the inlet valve.
For replacing the inlet and outlet valve, remove the slotted machine screw that holds
each valve in place. The stainless steel inlet and outlet valves are not