Quincy Compressor QTS-5 User Manual

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For questions concerning this air compressor, please call

877-784-6292

QTS

®

Series

QT-54, QTS-5, and QTS-3

User Manual

Part# 2022035542

Rev. 9/2022

Other manuals for Quincy Compressor QTS-5

Instruction Manual50 pages

Questions and Answers:

T
Thomas MooreAug 13, 2025
Why is the discharge pressure low on my Quincy Compressor Air Compressor?
- S
  steven99Aug 14, 2025
  If your Quincy Compressor Air Compressor experiences low discharge pressure, it might be due to several reasons. First, the compressor could be too small for the application, in which case you should reduce air demand or use a compressor with more air capacity. Second, air leaks could be the culprit; listen for them and apply a soap solution to fittings and connections to identify and tighten or replace the leaking components. Third, a restricted intake air could be the cause; clean or replace the air filter. Fourth, blown gaskets can lead to low pressure, so replace any necessary gaskets. Lastly, broken or misaligned valves can cause this issue; remove the head and inspect, replacing valves if needed.
W
William RoblesAug 17, 2025
Why doesn't my Quincy Compressor Air Compressor tank hold pressure?
- P
  philip02Aug 17, 2025
  If your Quincy Compressor Air Compressor tank does not hold pressure when not running and the shut-off valve is closed, it could be due to a few reasons. A malfunctioning check valve is a common cause, so replace it. Loose fittings or connections can also lead to pressure loss; tighten or replace them. Lastly, inspect the tank for any cracks or pinholes; if found, replace the tank and do not attempt to repair it.
L
lewisstephanieAug 21, 2025
How to fix excessive knocking noise in my Quincy Compressor Air Compressor?
- N
  Nancy KeyAug 21, 2025
  If your Quincy Compressor Air Compressor is excessively noisy with a knocking sound, several factors could be the cause. Ensure the drive pulley or flywheel is tightened. Low oil levels can also lead to knocking, so check for proper oil level. It may cause bearing damage. Another cause may be worn connecting rod or connecting rod bearing, which would require replacing the connecting rod and/or connecting rod bearings. Lastly, a noisy check valve can also produce this sound, and you would need to replace the check valve.
M
Mary ClarkAug 25, 2025
What to do if my Quincy Compressor Air Compressor will not run or the motor hums?
- A
  Adam ReynoldsAug 26, 2025
  If your Quincy Compressor Air Compressor will not run or the motor hums, begin by checking the voltage with a voltmeter across both legs of incoming power, and check the reset button on the motor. Also, a malfunctioning pressure switch can prevent the compressor from running, so repair or replace the pressure switch. Finally, a malfunctioning check valve may be the issue, so replace the check valve or pressure switch.
S
smithmelissaAug 29, 2025
Why is there excessive oil carryover in my Quincy Compressor Air Compressor?
- A
  abigail36Aug 29, 2025
  Excessive oil carryover in your Quincy Compressor Air Compressor can stem from several issues. Worn piston rings are a common cause, so replace them with new ones. Restricted intake air can also contribute; clean or replace the air filter. Ensure the oil level isn't too high by draining it to the proper level. Finally, using the incorrect oil viscosity can lead to this problem; use a quality non-detergent SAE 40 (ISO 150) oil.
N
Natalie FloresSep 1, 2025
Why is my Quincy Compressor Air Compressor overheating?
- D
  Daniel JonesSep 1, 2025
  If your Quincy Compressor Air Compressor is overheating, consider these potential causes: the compressor might be too small for the application, in which case you should reduce air demand or use a compressor with more air capacity. Another reason may be dirty cooling surfaces, so clean all cooling surfaces of dirt and dust. Finally, improper cooling can lead to overheating; ensure the compressor is installed in an area with adequate cool, dry air.
T
Troy DownsSep 5, 2025
How to reduce excessive vibration in my Quincy Compressor Air Compressor?
- L
  Laura Gonzalez MDSep 5, 2025
  Excessive vibration in your Quincy Compressor Air Compressor can be attributed to a few factors. Ensure the unit is mounted on a level surface with vibration pads for proper installation. Loose belts can also cause vibration; replace the belts and align and tighten them properly. Misaligned flywheel or drive pulley can also lead to this issue; align the flywheel and drive pulley.
Y
yvonne28Sep 9, 2025
What causes the pressure switch not unloading on my Quincy Compressor Air Compressor?
- E
  Elizabeth HillSep 9, 2025
  If the pressure switch on your Quincy Compressor Air Compressor is not unloading, it is likely malfunctioning. Replace the pressure switch if it does not release air pressure briefly when the unit shuts off.

Quincy Compressor QTS-5 Specifications

General

Model	QTS-5
Horsepower	5 HP
Maximum Pressure	175 PSI
Voltage	230 V
Pump Type	Cast Iron
Max Pressure	175 PSI
Air Delivery	14.5 CFM @ 175 PSI
Phase	Single Phase
Tank Capacity/Size	60 Gallon

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