Section 2
21
600H, 700HH, 750, 750H, 750HH, 825, 900H, 1050 USER MANUAL
DESCRIPTION
2.1 INTRODUCTION
Sullair Portable Air Compressor models offer
superior performance and reliability while requiring
only minimal maintenance.
The compressor is equipped with a Sullair rotary
screw compressor unit. Compared to other
compressors, the Sullair is unique in mechanical
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 compressor in top operating condition.
Read Section 5: MAINTENANCE to keep your
compressor in top operating condition. Should any
problem or question arise which cannot be answered
in this text, contact your nearest Sullair
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 package
includes a compressor, diesel engine, exhaust
system including an iT4 compliant emissions module,
compressor/engine inlet system, compressor cooling
and lubrication system, compressor discharge
system, capacity control system, instrument panel
and electrical system. The machine is also supplied
with sound deadening insulation to lower noise
emissions to meet EPA or CE, most federal, state, or
local noise requirements. The Sullair compressor unit
is driven by an industrial engine designed to provide
enough horsepower at rated conditions. Refer to
Engine Operator’s Manual for a more detailed
description of the engine.
The engine cooling system is comprised of a
radiator, high capacity fan and thermostats. The high
capacity variable speed hydraulic fan blows air
through the radiator, keeping the engine at the
proper operating temperature while optimizing the
fuel consumption by effectively adjusting the fan
speed to efficiently accommodate engine conditions.
The same fan also cools the fluid in the compressor
cooling and lubrication system. While passing
through the radiator, the fan air also passes through
the compressor fluid cooler, which is mounted
adjacent to the radiator. As air passes through the
cooler, some of the heat of compression is removed
from the fluid.
The same fan also cools the return fuel supply as
well as the fan drive hydraulic fluid. The coolers for
these circuits are integrated and mounted in front of
the compressor cooler and radiator. The cooling fan
is hydraulically driven. As air passes through the
aftercooler heat is removed which was introduced by
the engine’s turbo charger. The engine is coupled to
the compressor unit with a non-lubricated, vulcanized
rubber disk and a drive flange-type coupling. All
compressor models are supplied with a fuel tank
large enough to keep the compressor running
through a full 8-hour shift.
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