QT Series Parts Manual
Table Of Contents
QT-5 Industrial Quincy Compressor
2022207701, June 2018 1
INTRODUCTION
This manual provides information for the Model QT-5
reciprocating compressor.
The Model QT-5 is an aircooled, two stage, two
cylinder, splash lubricated compressor, with up to 175
PSI continuous pressure capability. It has a 4" low
pressure bore and a 2.25" high pressure bore, with a 3"
stroke. This compressor can be run at 400-1060 RPM.
Optional head unloaders are available.
CHANGES
since previous printing dated June 2018:
The part numbers within the manual have been
updated to the current 10-digit part numbers and
there are new valve plate gasket part numbers.
TABLE OF CONTENTS
Overhaul Kit ............................................................1
Gasket Set ...............................................................1
Recommended Spare Parts ................................... 1
Serial Number Identication .................................. 2
Ordering Replacement Parts .................................2
Quin-Cip Lubricant .................................................2
Crankcase Lubricant Capacity ..............................2
Crankshaft Groups .................................................3
Crankcase Group....................................................4
Connecting Rod & Piston Groups .....................5-6
Cylinder & Head Groups .....................................7-8
Control Piping Schematic ...................................... 9
Pilot Valves............................................................10
Pilot Valve Repair Kit............................................10
Dierential Setting Chart .....................................10
Suction Valve Unloader Assemblies .................. 11
Decals .................................................................... 11
Typical Unit Repair Parts List .........................12-14
Item Part
# Qty. Number Description
1 2022110601 piston ring set
1 2022110501 piston ring set
1 2022106702 gasket set
1 2021115385 valve plate assembly
1 2023400852 air filter element
1 2025024613 piston pin
1 2025024614 piston pin
1 2023402501 crankcase breather
1 2024408302 connecting rod assembly, LP
1 2021115396 connecting rod assembly, HP
2 2025027201 piston pin plug, .88 dia
2 2025027202 piston pin plug, .62 dia
Overhaul Kit 2022157101
Item Part
# Qty. Number Description
Gasket Set 2022106702
Item Part
# Qty. Number Description
Recommended Spare Parts
1 2023400852 air filter element, (fits
2023400823 and 2023400829
air filters; optional)
1 2022106702 gasket set
1 2021115385 replacement valve assembly
1 2024703501 gasket, valve plate to head
1 2024703301 gasket, cylinder to valve plate
1 2024704300 gasket, crankcase to cylinder
1 2024703800 gasket, bearing carrier
1 2024719400 oil seal
6 5530604300 hex. screw, 3/8-16 unc x 3.50
6 2014706635 spring washer
1 2022203100 head bolt torque instructions