Product Manual

Table Of Contents
3: Description 185 T4F Kubota User Manual
02250216-781 R02
22 Subject to EAR, ECCN EAR99 and related export control restrictions.
separate and fall to the bottom of the receiver tank. The
small amount of fluid remaining in the compressed air
collects on the surface of the separator element as the
compressed air flows through the separator. As more
fluid collects on the element surface, it then flows to the
bottom of the separator. A return line (or scavenge tube)
leads from the bottom of the separator element to the
inlet region of the compressor unit. Fluid collecting on the
bottom of the separator element is returned to the com
-
pressor by the pressure difference between the area sur-
rounding the separator element and the compressor inlet.
An orifice (p
rotected by a strainer) is included in this
return line to assure proper and unobstructed flow. The
receiver tank is code rated at 200 psig (13.8 bar) working
p
re
ssure. A minimum pressure device located down-
stream from the separator, ensure
s a minimum receiver
pressure of 80 psig (5.5 bar) during all conditions. Keep-
ing this pressure level stable is necessary for proper air/
fluid sepa
ration and proper fluid circulation. A pressure
relief valve (located on the wet side of the separator) is
set to open if the receiver tank pressure exceeds
200 psig (13.8 bar).
WARNING
Do not remove caps, plugs and/or other compo-
nents when the compressor is running or pres-
surized. Stop the compressor and relieve all
intern
al pressure before removing these items.
3.6 Capacity control system,
functional description
Figure 3-3: Compressor discharge system
1. Receiver tank 4. Compressor unit
2. Minimum pressure/check valve 5. Service air outlets
3. Internal air/oil separator element
Refer to Figure 3-3 on page 22. The purpose of the con-
trol system is to regulate the amount of air intake and
match it to
the demand (required output) on the compres-
sor. The control system consists of a pressure regulating
valve(s), air
inlet valve, system blowdown valve, engine
speed control, and tubing connecting the various compo-