Sullair 300HH - 2.9 Wiring Diagram

37
375 Caterpillar Standard and Aftercooled/Filtered Operator’s Manual and Parts List
MAINTENANCE
First and Second Stage Discharge Air Filter
Maintenance – Aftercooled & Filtered Models
General
Refer to Figure 5-7. Familiarity with the ltration process
and the unit’s monitoring system (consisting of a compete
set of gauges) will enable the operator to locate and
analyze malfunctions.
The rst and second stage lter element should be
changed when the pressure drop reaches the red band on
the pressure differential gauge.
Daily Operation
Check the automatic drain trap daily to ensure it is
operating properly.
First and Second Stage Element Replacement
Depressurize the lter and remove the lter housing. 1.
Remove the element.2.
Clean the inside of the lter housing, if necessary.3.
Install a new element and gaskets 4.
(P/N 02250153-294 FIRST STAGE)
(P/N 02250153-305 SECOND STAGE)
Reassemble the unit and check for air leaks.5.
Record the initial pressure drop when the compressor 6.
is started.
Safety
Toxic And Irritating Substances
DO NOT use air from this lter as a source for respiration
(breathing air) except when in compliance with OSHA
STANDARDS 29 CFR 1910, and all other applicable
Federal, state, or local codes or regulations.
O-Ring1.
Filter Element2.
Filter Housing3.
Figure 5-7: First and Second Stage Discharge Air
Filter (Optional)
These lters will not remove water vapor, oil vapor, carbon
monoxide, or other toxic gases.
The rst stage lter efciently removes contaminants such
as ash, dust, water aerosols, lubricant mist, carbon
particles, rust and other contaminants (0.3 microns and
larger).
The second stage lter removes particulates and all
lubricant aerosols of 0.01 micron size and larger.
Design Ratings
Design ratings are 150°F (66°C) maximum air inlet
temperature. All welded lter housings are ASME code
stamped for 250 psig (17.3 bar) maximum working
pressure.
1
1
2
3
SU_0000680
WARNING
Death or serious injuries can result
from inhaling compressed air without
using proper safety equipment. (See
applicable OSHA Standards)