Quincy QSF Series Instruction Manual page 45

PROBABLE CAUSE
Fluid Discharge Out Blowdown Valve
Too high fluid level in reservoir
Cycling too often between load and
unload
Air/fluid reservoir blows down too
fast
Inlet valve not closing completely
Frequent Fluid Filter Clogging
Faulty indicator (Standard QSF)
Incorrect fluid filter
Faulty, incorrect or inadequate air
filter
Fluid breakdown
System contamination
Inadequate circulation of cooling air
at the cooler
Low fluid level in reservoir
Clogged fluid filter
Clogged fluid cooler
Excessive ambient temperatures
Incorrect fan rotation
Improper fluid
Clogged air filter
Faulty thermal valve
Faulty gauges
Air end failure
CORRECTIVE ACTION
Adjust fluid level to recommended fluid level by draining the
reservoir. Use fluid level gauge as a guide.
Correct in accordance with instructions in "Too rapid cycling
between load and unload" section of this troubleshooting guide.
Check for proper blow-down valve size
Correct in accordance with instructions in "Inlet valve not opening or
closing in relation to air demand" section of this troubleshooting
guide.
Replace indicator assembly.
Use genuine Quincy replacement filters only.
Replace air filter element. Use genuine Quincy replacement
elements only.
See "Separator Clogging" section of this troubleshooting guide.
Check and clean system of all dirt, corrosion and varnish.
Check location of cooler and assure there is no restriction to free
circulation of cooling air. Check fins at cooler and clean as necessary
while machine is not running.
Add fluid to recommended level. Check fluid distribution system for
leaks.
Replace fluid filter element.
Check fluid cooler for varnishing and rust deposits. If condition exist,
clean cooler thoroughly and contact Quincy service technician for
instructions.
Maximum ambient for proper operation is listed in data sheet.
Correct rotation is with the fan pushing the air through the cooler.
Reverse motor starter leads L1 and L2.
Use recommended fluids only. Refer to lubrication section of
manual.
Clean or replace as necessary.
Repair or replace as necessary.
Check and replace as necessary.
Contact a Quincy authorized distributor.
Quincy Compressor – QSF Series
Section VII– Troubleshooting
41