Grizzly T32337 User manual

COPYRIGHT © APRIL, 2022 BY GRIZZLY INDUSTRIAL, INC., REVISED APRIL, 2022 (CS)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#CS22205 PRINTED IN CHINA V2.04.22
MODEL T32337
20-GALLON OIL-FREE QUIET
SERIES AIR COMPRESSOR
OWNER'S MANUAL
(For models manufactured since 05/22)
***Keep for Future Reference***

This manual provides critical safety instructions on the proper setup,
operation, maintenance, and service of this machine/tool. Save this
document, refer to it often, and use it to instruct other operators.
Failure to read, understand and follow the instructions in this manual
may result in fire or serious personal injury—including amputation,
electrocution, or death.
The owner of this machine/tool is solely responsible for its safe use.
This responsibility includes but is not limited to proper installation in
a safe environment, personnel training and usage authorization,
proper inspection and maintenance, manual availability and compre-
hension, application of safety devices, cutting/sanding/grinding tool
integrity, and the usage of personal protective equipment.
The manufacturer will not be held liable for injury or property damage
from negligence, improper training, machine modifications or misuse.
Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to the State
of California to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement and other masonry products.
• Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
Work in a well ventilated area, and work with approved safety equip-
ment, such as those dust masks that are specially designed to filter
out microscopic particles.

INTRODUCTION............................................................................................................................... 2
Contact Info ................................................................................................................................ 2
Manual Accuracy ........................................................................................................................ 2
Identification ............................................................................................................................... 3
Controls & Components ............................................................................................................. 4
Machine Data Sheet ................................................................................................................... 6
SECTION 1: SAFETY....................................................................................................................... 8
Safety Instructions for Machinery ............................................................................................... 8
Additional Safety for Air Compressors ..................................................................................... 10
SECTION 2: POWER SUPPLY ...................................................................................................... 11
SECTION 3: SETUP ....................................................................................................................... 13
Unpacking ................................................................................................................................ 13
Needed for Setup ..................................................................................................................... 13
Inventory ................................................................................................................................... 13
Site Considerations .................................................................................................................. 14
Assembly .................................................................................................................................. 14
Test Run ................................................................................................................................... 15
SECTION 4: OPERATIONS ........................................................................................................... 17
Operation Overview.................................................................................................................. 17
Choosing Air Hose ................................................................................................................... 18
Connecting Air Tool .................................................................................................................. 19
SECTION 5: ACCESSORIES......................................................................................................... 21
SECTION 6: MAINTENANCE......................................................................................................... 22
Schedule .................................................................................................................................. 22
Lubrication ................................................................................................................................ 22
Draining Tank ........................................................................................................................... 23
Checking Air Filters .................................................................................................................. 23
Machine Storage ...................................................................................................................... 24
Checking for Leaks .................................................................................................................. 25
SECTION 7: SERVICE ................................................................................................................... 26
Troubleshooting ........................................................................................................................ 26
Inspecting Check Valve ............................................................................................................ 29
Adjusting Cut-In/Cut-Out Settings ............................................................................................ 30
SECTION 8: WIRING...................................................................................................................... 32
Wiring Safety Instructions ........................................................................................................ 32
Wiring Diagram ........................................................................................................................ 33
SECTION 9: PARTS....................................................................................................................... 34
Main .......................................................................................................................................... 34
Labels & Cosmetics ................................................................................................................. 36
WARRANTY & RETURNS ............................................................................................................. 37
Table of Contents

-2- Model T32337 (Mfd. Since 05/22)
We stand behind our machines! If you have ques-
tions or need help, contact us with the information
below. Before contacting, make sure you get the
serial number
and manufacture date
from the
machine ID label. This will help us help you faster.
Grizzly Technical Support
1815 W. Battlefield
Springfield, MO 65807
Phone: [phone]
Email: [email protected]
We want your feedback on this manual. What did
you like about it? Where could it be improved?
Please take a few minutes to give us feedback.
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Email: [email protected]
Contact Info
We are proud to provide a high-quality owner’s
manual with your new machine!
We
made every effort to be exact with the
instruc-
tions, specifications, drawings, and photographs
in this manual. Sometimes we make mistakes, but
our policy of continuous improvement also means
that
sometimes the machine
you receive is
slightly different than shown in the manual
.
If you find this to be the case, and the difference
between the manual and machine leaves you
confused or unsure about something
,
check our
website for an updated version. W
e post
current
manuals and
manual updates for free
on our web-
site at
www.grizzly.com.
Alternatively, you can call our Technical Support
for help. Before calling, make sure you write
down the
manufacture date and
serial number
from the machine ID label (see below). This
information is required for us to provide proper
tech support, and it helps us determine if updated
documentation is available for your machine.
Manufacture Date
Serial Number
Manual Accuracy
INTRODUCTION

Model T32337 (Mfd. Since 05/22) -3-
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
Identification
Become familiar with the names and locations of the controls and features shown below to better understand
the instructions in this manual.
Regulator
Drain Valve
Tank
Machine Foot
(1 of 2)
Line Pressure
Gauge
Quick-Connect
Port (1 of 2)
Tank Pressure
Gauge
Motor
Compressor
Pump
Air Filter
(1 of 2)
Discharge
Line
Pressure
Switch
Safety Relief
Valve
Wheel
(1 of 2)
Exhaust
Tube

-4- Model T32337 (Mfd. Since 05/22)
Controls &
Components
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
Refer to the following figures and descriptions to
become familiar with the basic controls and com-
ponents of this machine. Understanding these
items and how they work will help you understand
the rest of the manual and minimize your risk of
injury when operating this machine.
Air Input
Figure 1. Front air input components.
A. Tank Pressure Gauge: Indicates pressure
of air in tank.
B. Exhaust Tube: Transfers compressed air
from pump to tank.
C. Drain Valve: Drains built-up moisture from
tank when ball valve is opened.
D. Tank: Holds up to 20 gallons of pressurized
air.
D
A
C
B
Figure 2. Rear air input components.
E
F
Like all machinery there is potential danger
when operating this machine. Accidents
are frequently caused by lack of familiarity
or failure to pay attention. Use this machine
with respect and caution to decrease the
risk of operator injury. If normal safety pre-
cautions are overlooked or ignored, seri-
ous personal injury may occur.
No list of safety guidelines can be com-
plete. Every shop environment is different.
Always consider safety first, as it applies
to your individual working conditions. Use
this and other machinery with caution and
respect. Failure to do so could result in
serious personal injury, damage to equip-
ment, or poor work results.

Model T32337 (Mfd. Since 05/22) -5-
J. Discharge Line: Releases air from compres-
sor pump and outlet line when tank pressure
exceeds 150 PSI (cut-out pressure).
K. Pressure Switch Lever: Toggles pressure
switch between OFF and AUTO modes.
Machine is OFF in OFF mode, and will con-
tinue to pressurize when in AUTO mode.
L. Safety Relief Valve: Pops open to release
tank pressure in the event that pressure
switch fails to stop motor at cut-out pressure.
M. Pressure Switch: Turns motor ON when
tank pressure drops below 120 PSI (cut-in
pressure) and switch is in AUTO position.
Switch contains pressure relief valve that will
activate discharge line when tank pressure
exceeds 150 PSI (cut-out pressure) or pres-
sure switch is turned OFF.
E. Dual Compressor Pump: Uses piston to
draw in and compress air before transferring
air into tank.
F. Air Filters: Clean air entering compressor
pump.
Figure 3. Air output components.
Air Output/Delivery
G. Regulator Knob: Adjusts pressure of air
delivered to quick-connect ports. Turn clock-
wise to increase pressure and counterclock-
wise to decrease pressure.
H. Line Pressure Gauge: Indicates pressure of
air at quick-connect ports.
I. Quick-Connect Port (1 of 2): Secures and
releases air hose when pressed in.
G
H
I
Automatic Pressurization
Figure 4. Pressurization components.
J
L
M
K

-6- Model T32337 (Mfd. Since 05/22)
Page 1 of 2Model T32337
MODEL T32337
20-GALLON OIL-FREE QUIET AIR COMPRESSOR
Customer Service #: [phone] · To Order Call: [phone] · Fax #: [phone]
Product Dimensions:
Weight ............................................................................................................................................................................ 136 lbs.
Width (side-to-side) x Depth (front-to-back) x Height ..................................................................................20 x 17 x 43-1/2 in.
Footprint (Length x Width) ...................................................................................................................................19-1/2 x 13 in.
Shipping Dimensions:
Type ................................................................................................................................................................... Cardboard Box
Content .......................................................................................................................................................................... Machine
Weight ............................................................................................................................................................................ 158 lbs.
Length x Width x Height .....................................................................................................................................21 x 18 x 48 in.
Electrical:
Power Requirement ........................................................................................................................ 120V, Single-Phase, 60 Hz
Full-Load Current Rating ................................................................................................................................................... 13.5A
Minimum Circuit Size ........................................................................................................................................................... 15A
Connection Type ..................................................................................................................................................... Cord & Plug
Power Cord Included ............................................................................................................................................................Yes
Power Cord Length ............................................................................................................................................................72 in.
Power Cord Gauge ....................................................................................................................................................... 14 AWG
Plug Included ........................................................................................................................................................................Yes
Included Plug Type ..............................................................................................................................................................5-15
Switch Type ..................................................................................................................................................... Pressure Switch
Motors:
Main
Horsepower ......................................................................................................................................................................2.5 HP
Phase .................................................................................................................................................................... Single-Phase
Amps ................................................................................................................................................................................. 13.5A
Speed .........................................................................................................................................................................1725 RPM
Type ............................................................................................................................................................................. Induction
Power Transfer ................................................................................................................................................................. Direct
Bearings ............................................................................................................................. Shielded & Permanently Lubricated
Main Specifications:
Operation Information
Compressor Style ..................................................................................................................................................Vertical
Pump Type ...................................................................................................................................................... One-Stage
Max. Airflow/Delivery (at 40 PSI) ..................................................................................................................... 6.2 SCFM
Max. Airflow/Delivery (at 90 PSI) ..................................................................................................................... 5.6 SCFM
Cut-Out Pressure .................................................................................................................................................150 PSI
Cut-In Pressure ....................................................................................................................................................120 PSI
Duty Cycle ................................................................................................................................................................50/50
Tank Size ........................................................................................................................................................ 20 Gallons
Number of Cylinders ........................................................................................................................................................2
Pump Lubrication .................................................................................................................................................Oil-Free
Drain Valve Type ...............................................................................................................................................Ball-Valve
Roll Cage .....................................................................................................................................................................Yes
Regulator .....................................................................................................................................................................Yes
Machine Data Sheet
MODEL T32337
20-GALLON OIL-FREE QUIET SERIES AIR COMPRESSOR

Model T32337 (Mfd. Since 05/22) -7-
Model T32337Page 2 of 2
Output Port Information
Connection Type ........................................................................................................................................Quick-Coupler
Connection Size ................................................................................................................................................. 1/4" NPT
Number of Connections ...................................................................................................................................................2
Hose Included .............................................................................................................................................................. No
Construction Information
Tank ...........................................................................................................................................................................Steel
Valves ..........................................................................................................................................................Brass-Coated
Cage/Frame ...............................................................................................................................................................Steel
Paint Type/Finish ...................................................................................................................................................Enamel
Other Specifications:
Country of Origin ............................................................................................................................................................... China
Warranty ........................................................................................................................................................................... 1 Year
Serial Number Location ................................................................................................................................................ ID Label
Sound Rating ............................................................................................................................................................... 60-73 dB
Features:
Sound Rating of Under 73 dB
Oil-Free Lubrication
20-Gallon Tank with Maximum Airflow of 5.6 SCFM at 90 PSI
Ball-Valve Drain Control
Durable Roll Cage with Wheels & Feet for Protected Portability
Included Air Regulator for Airflow Adjustment
Two Quick-Coupler Hose Connections
Internal PTC Overload Protection

-8- Model T32337 (Mfd. Since 05/22)
ELECTRICAL EQUIPMENT INJURY RISKS.
You can be shocked, burned, or killed by touching
live electrical components or improperly grounded
machinery. To reduce this risk, only allow qualified
service personnel to do electrical installation or
repair work, and always disconnect power before
accessing or exposing electrical equipment.
DISCONNECT POWER FIRST.
Always discon-
nect machine from power supply BEFORE mak-
ing adjustments, changing tooling, or servicing
machine. This prevents an injury risk from unin-
tended startup or contact with live electrical com-
ponents.
EYE PROTECTION. Always wear ANSI-approved
safety glasses or a face shield when operating or
observing machinery to reduce the risk of eye
injury or blindness from flying particles. Everyday
eyeglasses are NOT approved safety glasses.
OWNER’S MANUAL. Read and understand this
owner’s manual BEFORE using machine.
TRAINED OPERATORS ONLY. Untrained oper-
ators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine. When machine is not being used, dis-
connect power, remove switch keys, or lock-out
machine to prevent unauthorized use—especially
around children. Make your workshop kid proof!
DANGEROUS ENVIRONMENTS. Do not use
machinery in areas that are wet, cluttered, or have
poor lighting. Operating machinery in these areas
greatly increases the risk of accidents and injury.
MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of machin-
ery. Never operate under the influence of drugs or
alcohol, when tired, or when distracted.
For Your Own Safety, Read Instruction
Manual Before Operating This Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions.
This manual uses a series of symbols and signal words intended to convey the level of impor-
tance of the safety messages. The progression of symbols is described below. Remember that
safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures. Always use common sense and good judgment.
Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Alerts the user to useful information about proper operation of the
machine to avoid machine damage.
NOTICE
Safety Instructions for Machinery
SECTION 1: SAFETY