Quincy Compressor QSI Series Instruction Manual page 87

Fluid Scavenging System
Fluid from inside the separator element is returned to
the inlet valve or airend by a scavenger tube positioned
inside the separator element, through an orifice and tube
connected to the compressor. Failure to keep the orifice
clean will result in excessive fluid carryover. Cleaning of
the orifice should be performed as follows:
• When no fluid is seen moving through the sight
glass.
• When excessive fluid carryover is detected.
• Every fluid change.
• Once per year.
NOTICE!
Do not ream the orifice or change the orifice size.
Do not install the orifice reversed.
Figure 6-1. Scavenge Line Sight Glass
Air Filter
A heavy-duty air filter is standard on all QSI models. The
heavy-duty air filter is a two stage, dry type element. The
first stage is cyclonic. That is, centrifugal airflow spins
the larger dirt particles to the outside walls of the filter
canister. In the second stage, air passes through the filter
element with an efficiency of 99.9% as tested by SAE
J7266 test code specifications. Removal and replacement
of the element is accomplished by unscrewing the wing
nut and exchanging the element. Tighten the wing nut
snugly after making certain the element is seated cor-
rectly on its mounting base.
NOTICE!
Intake filtration equipment supplied from the
factory may not be adequate for extremely dirty
applications or some forms of dust or vapors. It is
the customer's responsibility to provide adequate
filtration for those conditions. Warranty will be
voided if inadequate filtration causes a failure.
Control Line Air Filter
An automatic draining control line filter is used. Drain-
ing occurs only when the compressor is in the unloaded
condition.
Quincy Compressor-QSI
®
Section VI - Servicing
85