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4.1 START UP
Pressurize the compressed air system. If the aftercooler was
interlocked with the compressor, the aftercooler will begin to
operate immediately. If the aftercooler was wired on a separate
electrical source, turn on the source.
Open the inlet and outlet isolation valves on the aftercooler (if
installed). Close the bypass valve. The aftercooler is ready for
operation.
4.2 OPERATION
The operation of the aftercooler is simple. The fan rotates,
moving ambient air across the core. The ambient air flow cools
the compressed air inside the core. The aftercooler will
automatically operate as long as electrical power is supplied to
the unit.
OPERATION
SECTION 4
MAINTENANCE
SECTION 5
5.0 MAINTENANCE INSTRUCTIONS
WARNING
BEFORE STARTING INSTALLATION OR MAINTENANCE
PROCEDURES, TURN OFF ELECTRICAL POWER AND
COMPLETELY DEPRESSURIZE THE UNIT. FAILURE TO
HEED THIS WARNING MAY RESULT IN SERIOUS PER-
SONAL INJURY AND/OR DAMAGE TO THE UNIT.
DO NOT REMOVE, REPAIR, OR REPLACE ANY ITEM ON
THIS UNIT WHILE IT IS PRESSURIZED.
DO NOT REMOVE THE FAN GUARD WHILE THE AFTER-
COOLER IS OPERATING. PERSONAL CONTACT WITH
THE ROTATING FAN BLADE MAY RESULT IN SERIOUS
PERSONAL INJURY.
Inspect the aftercooler regularly for loose bolts and connec
-
tions, rust and corrosion, and dirty or clogged heat transfer
surfaces.
SCHEDULED MAINTENANCE
MONTHLY
- Clean exterior of the aftercooler core
SEMI ANUALLY
- Grease motors that have alemite fittings. Apply 1 to 2 full
strokes with a grease gun.
YEARLY
- Clean the interior of the aftercooler core
5.1 CORE EXTERIOR CLEANING
The outside of the core should be cleaned regularly. Accumu
-
lation of dirt and other contaminants such as oils will greatly
reduce the efficiency of the aftercooler.
Normal accumulation of dirt can be removed by blowing the
core off with compressed air. If the core becomes contaminated
with oil-laden particles, the motor should be removed and the
core can be cleaned with a non-flammable degreaser. Follow
with hot water rinse and dry thoroughly. The core can also be
steam cleaned.
Use extreme care when cleaning the core,
as the aluminum fins can be easily damaged. DO NOT USE
CAUSTIC CLEANERS.
CAUTION
NEVER USE SOLVENTS CONTAINING STRONG ACID
OR ALKALINE BASES TO CLEAN THE CORE. DAM-
AGE TO THE CORE MAY OCCUR.
4.3 SHUT DOWN
To shut down the aftercooler, turn off the electrical power
source. If the aftercooler was interlocked with the compressor,
the aftercooler will automatically turn off with the compressor.
Open the bypass valve and close the inlet and outlet isolation
valves (if installed).
Manually override the automatic drain on the separator to com
-
pletely depressurize the aftercooler.
5.2 CORE INTERIOR CLEANING
The inside of the core should be cleaned once a year to return
the unit to full capacity. Excess lubricating fluids can build up
on the inside of the core and greatly reduce the efficiency of the
aftercooler.
Shut down the aftercooler per Section 4.3 and completely
depresusrize the unit. Disconnect the aftercooler from the air
system.
The interior of the core can be cleaned by circulating a mild
cleaning solution through the core to remove the deposits. In
most cases, a mild alkaline solution such as OAKITE or equal
is satisfactory. For extreme conditions, it may be necessary to
use a weak solution of INHIBITED hydrochloric acid. Circulate
the solution through the core until it is clean. Once the core
is clean, thoroughly rinse the core to remove all traces of the
cleaning solution before re-connecting to the air system. Always
follow the instructions supplied with the cleaning agent.
All filters and separators should also be cleaned and serviced
after the inside of the afercooler has been cleaned.
5.3 STORAGE
Store the aftercooler in a dry location that maintains a constant
temperature. The aftercooler shouold not be moved from a
warm area to a cold area in order to minimize condensation
inside the core.
For storage up to 6 months, drain the cooler and seal the open
-
ings.
For storage from 6 months to 24 months, flush the cooler with
oil and seal the openings. Remove all protection oil from the
aftercooler before connecting it to air system for operation.
For storage longer than 24 months, completely fill the cooler
with oil and seal the openings. The cooler should be flushed,
inspected, refilled with oil and sealed every 24 months during
storage. Drain the aftercooler and remove all protection oil from
the aftercooler before connecting it to air system for operation.
