Operating Instructions & Parts Manual
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain
the product described. Protect yourself and others by observing all safety information. Failure to comply with
instructions could result in personal injury and/or property damage! Retain instructions for future reference
®
Speedaire
Air Compressor
Description
Speedaire compressor pump is a two stage unit used to
produce pressure air up to 175 PSIG. It is equipped with a centrifugal unloader
for loadless starting, plus head unloaders for constant run. Compressor can be
used for start stop or constant run applications. Compressor pump features
counter balanced, ductile iron crankshaft, tapered roller bearings and
cast iron cylinders for long life. Valves are of Swedish steel, disc type.
Unit also features splash lubrication, visual oil sight gauge and balanced
fan-type flywheel.
Specifications
Bore & stroke................... 6-1/4 x 3-1/4 x 4"
No. cylinders .............................................. 4
CFM/REV........................................... 0.1420
Oil capacity .................................. 6-1/3 qts.
Weight ........................................... 450 Lbs.
Max. pressure .............................. 175 PSIG
Min. operating speed.................. 425 RPM
Max. operating speed ............... 1000 RPM
Dimensions
Figure 2 - Dimesions
Form 5S6121
20, 25, & 30 HP Two-Stage
compressor must not be used for
breathing air. To do so will cause
serious injury whether air is supplied
directly from the compressor source or
to breathing tanks for later use. Any
and all liabilities for damage or loss
due to injuries, death and/or property
damages stemming from the use of
this compressor to supply breathing
air, will be disclaimed by the
manufacturer.
C431-B
(Ref. Drawing)
Printed in U.S.A.
02571
08/08/292/VCPVP
C432-B
(Ref. Drawing)
Figure 1 – Compressor (Air Pump)
This reciprocating
compressor as a booster pump and/or
to compress a medium other than
atmospheric air is strictly non-
approved and can result in equipment
damage and/or injury. Non-approved
uses will also void
the warranty.
Ref
Description
A
Base width
B
Bolt down width
C
Bolt down to edge
D
Base to crank center
E
Overall width
F
Overall height
H
HP Exhaust at opening
I
Bolt down hole diameter
J
Base depth
K
Bolt down depth
L
Bolt down to edge
M
Bolt down to wheel (max.)
N
Flywheel width
O
Crank diameter
P
Flywheel diameter
Q
Flywheel grooves
R
Overall depth
NOTE:
Flywheel rotation clockwise when
viewed from front, flywheel to rear.
Version: 01
06/21/2010
3Z411A
.
E
N
G
L
I
S
H
The use of this
Dim.
12-7/8"
5-11/16"
3/4"
8-3/16"
33"
26-3/4"
1-1/4 NPT
9/16"
13-1/4"
11-1/4"
1"
5-3/4"
3-1/2"
2-1/4"
22"
3VB
27-1/4"
E
S
P
A
Ň
O
L
F
R
A
N
C
Ă
I
S