Section 2
375, 375H, 400HH, 425, 425H T4F User Manual 2: Description
02250223-036 R01
Subject to EAR, ECCN EAR99 and related export control restrictions. 17
Description
2.1 Introduction
Sullair portable air compressor models offer superior per-
formance and reliability while requiring only minimal
maintenance.
The compressor is equipped with a Sullair
rotary screw compressor unit. Compared to other com-
pressors, the Sullair is unique in mechanic
al reliability
and compressor durability.
No inspection is required of
the working parts within the compressor unit.
As you continue reading this manual and come to learn
how the compressor operates
and is cared for, you will
see how surprisingly easy it is to keep a Sullair compres-
sor in top operating condition. Read Section 5: Mainte-
nance to keep your compressor in top operating
condition. Should any problem or question arise which
can
not be answer
ed in this text, contact your nearest Sul-
lair representative or the Sullair Service department.
2.2 Description of components
Refer to Figure 2-1 and Figure 2-2. The components and
assemblies of the Sullair Portable Air Compressor models
are clearly shown. The p
ackage includes a compressor,
diesel engine, exhaust system including an Tier 4 Final
compliant emissions module, compressor/engine inlet sys-
tem, compressor cooling and lubrication system, compres-
sor discharge system, capacity control system, instrument
p
anel and electrical system. The machine
is also supplied
with sound deadening insulation to lower noise emissions
to meet EPA or CE, and/or any federal, state, or local
noise requirement. The Sullair compressor unit is driven
by an industrial engine designed to provide enough horse-
power at rated conditions. Refer to the En
gine Oper
ator’s
Manual for a more detailed description of the engine.
The control system can easily be adjusted for pressures
from 80 to 100 psig (5.6 to 6.9
bar) for standard machines,
from 80 to 150 psig (5.6 to 10.3 bar) for “H” machines and
from 80 psig to 200 ps
ig (5.6 to 13.8 bar) for “HH”
machines. The compressor unit is driven by
an industrial
diesel engine designed to provide enough horsepower to
provide an adequate reserve under rated conditions.
Refer to the Engine O
perator’s Manual for a more
detailed description of the engine. The engine cooling
system is comprised of a radiator, charge air cooler, high
capacity fan, and thermostat. The high capacity fan
pushes air through the radiator to maintain the engine’s
specified operating temperature. The same fan also
cools the fluid in the compressor cooling and lubrication
system.
Figure 2-1: Exhaust system
1. Exhaust treatment 3. DEF fluid fill port
2. DEF tank 4. Exhaust pipe (outlet)
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