Thermo Scientific 5030i SHARP, Instruction Manual

Page: 185 / 403

Preventive Maintenance
Cleaning the Inlets
Thermo Fisher Scientific Model 5030 i SHARP Instruction Manual 5-3
Figure 5–1. U.S. EPA PM
10
Inlet
Once a month the sampler inlet should be dismantled and cleaned. Mark
each assembly point of the sampler inlet with a pen or pencil to provide
reference marks during reassembly.
Disassemble the sample inlet unit according to Figure 5–1 . If the assembly
screws are frozen, apply penetrating oil or commercial lubricant to make
removal easier. Clean all interior surfaces and the bug screen with a general
purpose cleaner or compressed air, paying particular attention to small
openings and cracks. Cotton swabs and/or a small brush are helpful.
Completely dry all components.
Also monthly, check the O-rings for distortion, cracks, fraying, or other
problems and replace as necessary. Apply small amounts of grease to the
rings before assembling the unit.
Reassemble the unit in accordance with the previously scribed match
marks. Particular care should be taken to ensure that all O-rings seals are
properly seated and that all screws are uniformly tightened.
The same schedule should be used for the European PM
10
Inlet (e.g.
Leckel), at approximately a 1-2 month interval. The components of the
inlet should be inspected and cleaned as necessary.
Figure 5–2 provided
below provides an image and design drawing of the inlet, with references to
parts.
European PM
10
/PM
2.5
Inlet