Grizzly T32337 User guide

Page 1
MODEL T32337
20-GALLON OIL-FREE QUIET
SERIES AIR COMPRESSOR
(For models manufactured since 05/22)
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
***Keep for Future Reference***
V2.04.22
Page 2
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 compre­hension, 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 equip­ment, such as those dust masks that are specially designed to filter out microscopic particles.
Page 3
Table of Contents
INTRODUCTION ............................................................................................................................... 2
Contact Info Manual Accuracy Identification Controls & Components Machine Data Sheet
................................................................................................................................ 2
........................................................................................................................ 2
............................................................................................................................... 3
............................................................................................................. 4
................................................................................................................... 6
SECTION 1: SAFETY
Safety Instructions for Machinery Additional Safety for Air Compressors
SECTION 2: POWER SUPPLY
SECTION 3: SETUP
Unpacking Needed for Setup Inventory Site Considerations Assembly Test Run
SECTION 4: OPERATIONS
Operation Overview.................................................................................................................. 17
Choosing Air Hose Connecting Air Tool
SECTION 5: ACCESSORIES
SECTION 6: MAINTENANCE......................................................................................................... 22
Schedule Lubrication Draining Tank Checking Air Filters Machine Storage Checking for Leaks
................................................................................................................................ 13
................................................................................................................................... 13
.................................................................................................................................. 14
................................................................................................................................... 15
.................................................................................................................................. 22
................................................................................................................................ 22
....................................................................................................................... 8
............................................................................................... 8
..................................................................................... 10
...................................................................................................... 11
....................................................................................................................... 13
..................................................................................................................... 13
.................................................................................................................. 14
........................................................................................................... 17
................................................................................................................... 18
.................................................................................................................. 19
......................................................................................................... 21
........................................................................................................................... 23
.................................................................................................................. 23
...................................................................................................................... 24
.................................................................................................................. 25
SECTION 7: SERVICE
Troubleshooting Inspecting Check Valve Adjusting Cut-In/Cut-Out Settings
SECTION 8: WIRING
Wiring Safety Instructions Wiring Diagram
SECTION 9: PARTS
.......................................................................................................................................... 34
Main Labels & Cosmetics
WARRANTY & RETURNS
................................................................................................................... 26
........................................................................................................................ 26
...................................................................................................................... 32
........................................................................................................................ 33
....................................................................................................................... 34
................................................................................................................. 36
............................................................................................................. 37
............................................................................................................ 29
............................................................................................ 30
........................................................................................................ 32
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We stand behind our machines! If you have ques­tions or need help, contact us with the information below. Before contacting, make sure you get the
serial number
from the
machine ID label. This will help us help you faster.
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.
Email: manuals@grizzly.com
We are proud to provide a high-quality owner’s manual with your new machine!
We
instruc­tions, specifications, drawings, and photographs in this manual. Sometimes we make mistakes, but our policy of continuous improvement also means that
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
current
manuals and
on our web-
site at
Alternatively, you can call our Technical Support for help. Before calling, make sure you write down the
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.

INTRODUCTION

Contact Info

and manufacture date
Grizzly Technical Support
1815 W. Battlefield Springfield, MO 65807 Phone: (570) 546-9663
Email: techsupport@grizzly.com
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069

Manual Accuracy

made every effort to be exact with the
sometimes the machine
.
,
e post
manual updates for free
www.grizzly.com.
manufacture date and
Manufacture Date
Serial Number
-2-
Model T32337 (Mfd. Since 05/22)
Page 5
To reduce your risk of serious injury, read this entire manual BEFORE

Identification

Become familiar with the names and locations of the controls and features shown below to better understand the instructions in this manual.
Compressor
Pump
Line Pressure
Air Filter
(1 of 2)
Gauge
Motor
Tank
Wheel
(1 of 2)
Drain Valve
Regulator
Discharge
Line
Pressure
Switch
Machine Foot
(1 of 2)
Tank Pressure
Gauge
Safety Relief
Quick-Connect
Port (1 of 2)
Exhaust
Tube
Valve
Model T32337 (Mfd. Since 05/22)
using machine.
-3-
Page 6
Controls &
To reduce your risk of serious injury, read this entire manual BEFORE
Components
using machine.
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 pre­cautions are overlooked or ignored, seri­ous personal injury may occur.
Air Input
A
B
D
C
Figure 1. Front air input components.
No list of safety guidelines can be com­plete. 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 equip­ment, or poor work results.
Refer to the following figures and descriptions to become familiar with the basic controls and com­ponents 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.
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.
E
F
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Figure 2. Rear air input components.
Model T32337 (Mfd. Since 05/22)
Page 7
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.
Automatic Pressurization
J
Air Output/Delivery
H
I
G
Figure 3. Air output components.
G. Regulator Knob: Adjusts pressure of air
delivered to quick-connect ports. Turn clock­wise to increase pressure and counterclock­wise 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.
K
M
Figure 4. Pressurization components.
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 con­tinue 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 pres­sure switch is turned OFF.
L
Model T32337 (Mfd. Since 05/22)
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Page 8

Machine Data Sheet

Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL T32337
MODEL T32337
20-GALLON OIL-FREE QUIET SERIES AIR COMPRESSOR
Product Dimensions:
Shipping Dimensions:
Electrical:
Motors:
20-GALLON OIL-FREE QUIET AIR COMPRESSOR
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.
Type ................................................................................................................................................................... Cardboard Box
Content .......................................................................................................................................................................... Machine
Weight ............................................................................................................................................................................ 158 lbs.
Length x Width x Height .....................................................................................................................................21 x 18 x 48 in.
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
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
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Model T32337 (Mfd. Since 05/22)
Page 9
Output Port Information
Other Specifications:
Features:
Construction Information
Country of Origin ............................................................................................................................................................... China
Warranty ........................................................................................................................................................................... 1 Year
Serial Number Location ................................................................................................................................................ ID Label
Sound Rating ...............................................................................................................................................................60-73 dB
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
Connection Type ........................................................................................................................................Quick-Coupler
Connection Size ................................................................................................................................................. 1/4" NPT
Number of Connections ...................................................................................................................................................2
Hose Included .............................................................................................................................................................. No
Tank ...........................................................................................................................................................................Steel
Valves ..........................................................................................................................................................Brass-Coated
Cage/Frame ...............................................................................................................................................................Steel
Paint Type/Finish ...................................................................................................................................................Enamel
Model T32337 (Mfd. Since 05/22)
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Page 10

SECTION 1: SAFETY

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 impor­tance 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 an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious injury.
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.
Alerts the user to useful information about proper operation of the
NOTICE
machine to avoid machine damage.

Safety Instructions for Machinery

OWNER’S MANUAL. Read and understand this
owner’s manual BEFORE using machine.
TRAINED OPERATORS ONLY. Untrained oper­ators have a higher risk of being hurt or killed. Only allow trained/supervised people to use this machine. When machine is not being used, dis­connect 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 machin­ery. Never operate under the influence of drugs or alcohol, when tired, or when distracted.
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. nect machine from power supply BEFORE mak­ing adjustments, changing tooling, or servicing machine. This prevents an injury risk from unin­tended startup or contact with live electrical com­ponents.
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.
Always discon-
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Model T32337 (Mfd. Since 05/22)
Page 11
WEARING PROPER APPAREL. Do not wear clothing, apparel or jewelry that can become entangled in moving parts. Always tie back or cover long hair. Wear non-slip footwear to reduce risk of slipping and losing control or accidentally contacting cutting tool or moving parts.
HAZARDOUS DUST. Dust created by machinery operations may cause cancer, birth defects, or long-term respiratory damage. Be aware of dust hazards associated with each workpiece mate­rial. Always wear a NIOSH-approved respirator to reduce your risk.
HEARING PROTECTION. Always wear hear­ing protection when operating or observing loud machinery. Extended exposure to this noise without hearing protection can cause permanent hearing loss.
REMOVE ADJUSTING TOOLS. Tools left on machinery can become dangerous projectiles upon startup. Never leave chuck keys, wrenches, or any other tools on machine. Always verify removal before starting!
USE CORRECT TOOL FOR THE JOB. Only use this tool for its intended purpose—do not force it or an attachment to do a job for which it was not designed. Never make unapproved modifica­tions—modifying tool or using it differently than intended may result in malfunction or mechanical failure that can lead to personal injury or death!
AWKWARD POSITIONS. Keep proper footing and balance at all times when operating machine. Do not overreach! Avoid awkward hand positions that make workpiece control difficult or increase the risk of accidental injury.
CHILDREN & BYSTANDERS. Keep children and bystanders at a safe distance from the work area. Stop using machine if they become a distraction.
GUARDS & COVERS. Guards and covers reduce accidental contact with moving parts or flying debris. Make sure they are properly installed, undamaged, and working correctly BEFORE operating machine.
FORCING MACHINERY. Do not force machine. It will do the job safer and better at the rate for which it was designed.
NEVER STAND ON MACHINE. Serious injury may occur if machine is tipped or if the cutting tool is unintentionally contacted.
STABLE MACHINE. Unexpected movement dur­ing operation greatly increases risk of injury or loss of control. Before starting, verify machine is stable and mobile base (if used) is locked.
USE RECOMMENDED ACCESSORIES. Consult this owner’s manual or the manufacturer for rec­ommended accessories. Using improper acces­sories will increase the risk of serious injury.
UNATTENDED OPERATION. To reduce the risk of accidental injury, turn machine OFF and ensure all moving parts completely stop before walking away. Never leave machine running while unattended.
MAINTAIN WITH CARE. Follow all maintenance instructions and lubrication schedules to keep machine in good working condition. A machine that is improperly maintained could malfunction, leading to serious personal injury or death.
DAMAGED PARTS. Regularly inspect machine for damaged, loose, or mis-adjusted parts—or any condition that could affect safe operation. Immediately repair/replace BEFORE operating machine. For your own safety, DO NOT operate machine with damaged parts!
MAINTAIN POWER CORDS. When disconnect­ing cord-connected machines from power, grab and pull the plug—NOT the cord. Pulling the cord may damage the wires inside. Do not handle cord/plug with wet hands. Avoid cord damage by keeping it away from heated surfaces, high traffic areas, harsh chemicals, and wet/damp locations.
EXPERIENCING DIFFICULTIES. If at any time you experience difficulties performing the intend­ed operation, stop using the machine! Contact our Technical Support at (570) 546-9663.
Model T32337 (Mfd. Since 05/22)
-9-
Page 12

Additional Safety for Air Compressors

Serious impact injury or death can occur from bursting tank, attachment tool, distribution line, or hose. Contact with hot compressor parts can result in burns. Operating this tool in an environment without proper ventilation or near combustible materials can lead to explosions or fires. Eyes and other soft tissues can be easily injured by air streams and debris projected by compressed air or attachment tools. To reduce the risk of these hazards, operator and bystanders MUST completely heed hazards and warnings below.
TANK INTEGRITY. Inspect tank, attachment
tools, pump, air lines, and valves for rust, damage, weakness, leaks, looseness, or excessive wear and repair/replace damaged components before operating. Replace a damaged tank immediately. DO NOT attempt to weld on, modify, or repair tank. Modifying tank can affect tank integrity and cause tank to burst.
ATTACHM ENT TOO LS. Always wear ANSI­approved eye protection and any additional per­sonal protective equipment required by attach­ment tools. Pneumatic tools can propel objects and debris at high speeds or even explode. Never use damaged tools—they are even more likely to rupture. DO NOT exceed pressure ratings of tools or attachments as lines and seals may burst. Use proper air hose for tool and confirm air hose is long enough to reach work area without stretching. Do not carry attachment tool with hand on trigger to reduce risk of accidental firing. Always relieve outlet air line and hose before attaching/removing tools. Disconnect hose or tool from compressor when not in use.
MODIFICATIONS. DO NOT adjust or remove safety relief valve, pressure switch, or otherwise modify machine. Do not install shut-off valve between compressor pump and tank. Check, safe­ty, and pressure valves are adjusted at factory for correct tolerances and abilities of compressor and are designed to keep tank and other components from bursting.
INTENDED USE. DO NOT use compressed air as breathable air supply and DO NOT aim com­pressed air or air tools at body parts or people. Compressed air can injure or propel debris into eyes or other soft tissues. Do not use compres­sor to inflate low-pressure objects that are likely to burst (like children’s toys).
DAILY MAINTENANCE. Test safety relief valve daily to dislodge any blockages and confirm it is working correctly. Drain moisture from tank daily to prevent internal corrosion that could weaken tank.
DISTRIBUTION LINES. Use only stainless steel, copper, or aluminum for air delivery/distribution lines. NEVER use PVC because it cannot with­stand the pressure, heat, condensation, and oils of compressed air and may shatter, creating danger­ous shrapnel.
VENTILATION. Only operate in well-ventilated environment that is less than 100°F and keep com­pressor at least 18 inches from nearest wall. DO NOT obstruct airflow to air filters and ventilation openings. Regularly check and change air filters to avoid buildup of impurities and reduce risk of fire.
COMBUSTION. Compressor motor, pressure switch, and some pneumatic attachment tools often produce sparks. Only operate compressor in area free of combustible materials to prevent fires and explosions. When spraying, locate air compressor at least 20 feet from spray area, do not smoke, and do not spray flammable mate­rial in confined area near flame/compressor. Turn compressor OFF when unattended. Motor could overheat and create fire hazard.
HOT PARTS. Discharge line and other compres­sor pump parts heat up during operation. Do not touch these parts during or immediately following operation to prevent burns.
MOVING AND SERVICING. Disconnect power, allow compressor to cool, bleed air from system, and disconnect attachment tools and hoses before moving or servicing to prevent impact injuries, soft tissue injuries, and burns.
-10 -
Model T32337 (Mfd. Since 05/22)
Page 13

SECTION 2: POWER SUPPLY

Before installing the machine, consider the avail­ability and proximity of the required power supply circuit. If an existing circuit does not meet the requirements for this machine, a new circuit must be installed. To minimize the risk of electrocution, fire, or equipment damage, installation work and electrical wiring must be done by an electrician or qualified service personnel in accordance with all applicable codes and standards.
or equipment damage may occur if machine is not properly grounded and connected to power
The full-load current rating is the amperage a machine draws at 100% of the rated output power. On machines with multiple motors, this is the amperage drawn by the largest motor or sum of all motors and electrical devices that might operate at one time during normal operations.
The full-load current is not the maximum amount of amps that the machine will draw. If the machine is overloaded, it will draw additional amps beyond the full-load rating.
If the machine is overloaded for a sufficient length of time, damage, overheating, or fire may result— especially if connected to an undersized circuit. To reduce the risk of these hazards, avoid over­loading the machine during operation and make sure it is connected to a power supply circuit that meets the specified circuit requirements.
For your own safety and protection of
Note: Circuit requirements in this manual apply to
a dedicated circuit—where only one machine will be running on the circuit at a time. If machine will be connected to a shared circuit where multiple machines may be running at the same time, con­sult an electrician or qualified service personnel to ensure circuit is properly sized for safe operation.
A power supply circuit includes all electrical equipment between the breaker box or fuse panel in the building and the machine. The power sup­ply circuit used for this machine must be sized to safely handle the full-load current drawn from the machine for an extended period of time. (If this machine is connected to a circuit protected by fuses, use a time delay fuse marked D.)
This machine is prewired to operate on a power supply circuit that has a verified ground and meets the following requirements:
process. DO NOT connect to power until
Availability
Electrocution, fire, shock,
Serious injury could occur if you connect machine to power before completing setup
instructed later in this manual.
120V Circuit Requirements
Nominal Voltage .................... 110V, 115V, 120V
..........................................................60 Hz
Cycle Phase Power Supply Circuit
........................................... Single-Phase
......................... 15 Amps
supply.
Full-Load Current Rating
Full-Load Current Rating at 120V .. 13.5 Amps
Model T32337 (Mfd. Since 05/22)
property, consult an electrician if you are unsure about wiring practices or electrical codes in your area.
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Page 14
Improper connection of the equipment-grounding wire can result in a risk of electric shock. The wire with green insulation (with or without yellow stripes) is the equipment-grounding wire. If repair or replacement of the power cord or plug is nec­essary, do not connect the equipment-grounding wire to a live (current carrying) terminal.
Check with a qualified electrician or service per­sonnel if you do not understand these grounding requirements, or if you are in doubt about whether the tool is properly grounded. If you ever notice that a cord or plug is damaged or worn, discon­nect it from power, and immediately replace it with a new one.
We do not recommend using an extension cord with this machine. cord, only use it if absolutely necessary and only on a temporary basis.
Extension cords cause voltage drop, which can damage electrical components and shorten motor life. Voltage drop increases as the extension cord size gets longer and the gauge size gets smaller (higher gauge numbers indicate smaller sizes).
Any extension cord used with this machine must be in good condition and contain a ground wire and matching plug/receptacle. Additionally, it must meet the following size requirements:
Grounding & Plug Requirements
it will not fit the outlet, have a qualified electrician install the proper outlet with a
This machine MUST be grounded. In the event of certain malfunctions or breakdowns, grounding reduces the risk of electric shock by providing a path of least resistance for electric current.
This machine is equipped with a power cord that has an equipment-grounding wire and a grounding plug. Only insert plug into a matching receptacle (outlet) that is properly installed and grounded in accordance with all local codes and ordinances. DO NOT modify the provided plug!
GROUNDED
5-15 RECEPTACLE
Grounding Pin
5-15 PLUG
Extension Cords
If you must use an extension
Neutral Hot
Figure 5. Typical 5-15 plug and receptacle.
SHOCK HAZARD! Two-prong outlets do not meet the grounding requirements for this machine. Do not modify or use an adapter on the plug provided—if
verified ground.
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Minimum Gauge Size ...........................12 AWG
Maximum Length (Shorter is Better).......50 ft.
Model T32337 (Mfd. Since 05/22)
Page 15

SECTION 3: SETUP

The following is a list of items shipped with your machine. Before beginning setup, lay these items out and inventory them.
If any non-proprietary parts are missing (e.g. a nut or a washer), we will gladly replace them; or for the sake of expediency, replacements can be obtained at your local hardware store.
This machine was carefully packaged for safe transport. When unpacking, separate all enclosed items from packaging materials and inspect them for shipping damage.
,
please
at (570) 546-9663.
IMPORTANT:
you are completely satisfied with the machine and have resolved any issues between Grizzly or the shipping agent. You MUST have the original pack-
aging to file a freight claim. It is also extremely helpful if you need to return your machine later.

Unpacking

If items are damaged
call us immediately
Save all packaging materials until

Needed for Setup

The following items are needed, but not included, for the setup/assembly of this machine.

Inventory

Inventory (Figure 6) Qty
A. Air Compressor (Not Shown) ..................... 1
B. Air Filter Assemblies ................................... 2
C. Shoulder Bolts 3⁄8"-16 x 11⁄2 " ....................... 2
D. Flat Washers 3⁄8" ......................................... 2
E. Wheels ....................................................... 2
F. Hex Nuts 3⁄8"-16 .......................................... 2
G. Internal Tooth Washers 3⁄8" ......................... 2
H. Flat Washers 13 x 14 x 2mm ...................... 4
Description Qty
Safety Glasses ........................................... 1
Wrenches or Sockets
Hearing Protection ...................................... 1
This machine presents serious injury hazards to untrained users. Read through this entire manu­al to become familiar with the controls and opera­tions before starting the machine!
Model T32337 (Mfd. Since 05/22)
Wear safety glasses during the entire setup process!
9
16" .......................... 2
D
C
B
E
H
G
F
Figure 6. Inventory.
NOTICE
If you cannot find an item on this list, care­fully check around/inside the machine and packaging materials. Often, these items get lost in packaging materials while unpack­ing or they are pre-installed at the factory.
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Page 16
or disable start switch or

Site Considerations

Refer to the Machine Data Sheet for the weight and footprint specifications of your machine. Some workbenches may require additional rein­forcement to support the weight of the machine and workpiece materials.
Consider anticipated workpiece sizes and addi­tional space needed for auxiliary stands, work tables, or other machinery when establishing a location for this machine in the shop. Below is the minimum amount of space needed for the
The machine must be fully assembled before it can be operated. Before beginning the assembly process, refer to
and gather all goes smoothly, first clean any
cov­ered or coated in heavy-duty rust preventative (if applicable).
Workbench Load

Assembly

Needed for Setup
listed items. To ensure the assembly process
parts that are
Placement Location
Wall
Min. 18"
from
Obstructions
20"
17"
To assemble machine:
Thread air filter assemblies clockwise into
1.
compressor pump heads (see Figure 8) and hand tighten.
Compressor
Pump Head
Air Filter
Assembly
Figure 8. Air filter assemblies installed on
compressor pump.
2. Attach (2) wheels to air compressor with (2)
3
8"-16 x 11⁄2 " shoulder bolts, (4) 13 x 14 x 2mm flat washers, (2) nal tooth washers, and (2) (see Figure 9).
3
8" flat washers, (2) 3⁄8" inter-
3
8"-16 hex nuts
=
Electrical Connection
Figure 7. Minimum working clearances.
Children and visitors may be seriously injured if unsuper­vised around this machine. Lock entrances to the shop
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power connection to prevent unsupervised use.
Wheel
(1 of 2)
x 2
Figure 9. Wheel attached to air compressor.
Model T32337 (Mfd. Since 05/22)
Page 17

Test Run

Once assembly is complete, test run the machine to ensure it is properly connected to power and safety components are functioning correctly.
If you find an unusual problem during the test run, immediately stop the machine, disconnect it from power, and fix the problem BEFORE operating the machine again. The
table in the
SERVICE section of this manual can help.
setup instructions have been performed. Operating an improperly set up machine
Serious injury or death can result from
Troubleshooting
The Test Run consists of verifying the following:
1) The motor powers up and runs correctly, 2) the motor and pump turn OFF when the cut-out pressure is reached, and 3) the safety relief valve works correctly.
3. Move pressure switch lever to OFF position (see Figure 10).
Pressure
Switch
Lever
Figure 10. Location of pressure switch lever.
4.
Turn drain valve handle all the way counter-
clockwise to open (see Figure 11).
using this machine BEFORE understanding its controls and related safety information. DO NOT operate, or allow others to operate, machine until the information is understood.
DO NOT start machine until all preceding
may result in malfunction or unexpect­ed results that can lead to serious injury, death, or machine/property damage.
To test run machine:
1. Clear all setup tools away from machine.
2. Locate machine in well-ventilated area at
least 18 inches from nearest wall or any obstructions.
Drain Valve
Handle
Figure 11. Drain valve handle in open position.
5.
Connect machine to power supply.
6. Move pressure switch lever to AUTO posi­tion to turn machine ON and verify motor operation.
Motor should run smoothly and without
unusual problems or noises.
Model T32337 (Mfd. Since 05/22)
Eye injury hazard! Always wear safety glasses when handling pressurized air system.
-15-
Page 18
Do not touch compressor head or discharge line during use or immediately after compressor is active. These hot parts may cause burns.
7. After running compressor for 15 minutes,
move pressure switch to OFF position to turn machine OFF.
Turn drain valve handle to closed position.
8.
9. Turn machine ON and observe tank pressure
gauge (see Figure 12 ) while tank fills.
Tank Pressure
Gauge
Releasing air through safety relief valve can be extremely loud. Protect hearing with ANSI-approved hearing protection in following step.
Turn machine OFF and slowly pull safety
10.
relief valve ring to bleed pressure from tank (see Figure 13).
Safety Relief
Valve
Figure 12. Location of tank pressure gauge.
— If motor and pump turn OFF when tank
pressure reaches 150 PSI, then safety feature of check valve is working correctly. Proceed to Step 10.
— If motor and pump do not turn OFF when
tank pressure reaches 150 PSI, then immediately turn OFF machine and dis­connect it from power. Safety feature of check valve is NOT working properly and must be replaced before further using machine.
Figure 13. Location of safety relief valve.
— If safety relieve valve bleeds pressure from
tank, and air stops leaking when pressure is released, then safety feature of safety relief valve is working correctly. Proceed to Step 11.
— If safety relief valve is stuck or leaks after
releasing pressure, immediately turn OFF machine and disconnect it from power. Safety relief valve must be replaced before further using machine.
Open drain valve to drain moisture from tank.
11.
Congratulations! Test Run is complete.
-16 -
Model T32337 (Mfd. Since 05/22)
Page 19

SECTION 4: OPERATIONS

The purpose of this overview is to provide the nov­ice machine operator with a basic understanding of how the machine is used during operation, so the
discussed later
in this manual
Due to the generic nature of this overview, it is not intended to be an instructional guide. To learn more about specific operations, manual,
training from experienced machine operators outside of this manual by reading "how-to" books, trade magazines, or websites.
To reduce your risk of serious injury, read this entire manual BEFORE

Operation Overview

3. Turns regulator knob all the way counter-
clockwise.
Puts on any additional personal protective
4.
equipment required by operation and attach­ment tool.
machine controls/components
are easier to understand.
seek additional
, and do additional research
using machine.
Eye injury hazard! Always wear safety glasses when using this machine.
read this entire
Connects machine to power and turns it ON.
5.
Allows machine to run until cut-out pressure
6.
has been reached and tank is full.
Turns regulator knob clockwise until line
7.
pressure gauge displays pressure lower than or equal to air tool rating.
Connects air hose to quick-connect coupler.
8.
9. Connects attachment air tool to air hose.
10. While being careful not to create a tripping
hazard with hose, performs operation.
Turns machine OFF and disconnects it from
11.
power.
Uses safety relief valve to reduce tank pres-
12.
sure to less than 10 PSI.
Disconnects attachment tool from hose.
13.
14. Disconnects hose from compressor.
Do not touch compressor head or discharge line during use or immediately after compressor is active. These hot parts may cause
To complete a typical operation, the operator does the following:
Puts on safety glasses.
1.
2. Pulls safety valve ring to test valve and clear
any obstructions.
Model T32337 (Mfd. Since 05/22)
burns.
15. Opens drain valve to drain any condensation
from tank.
Closes drain valve.
16.
If you are not experienced with this type of machine, WE STRONGLY RECOMMEND that you seek additional training outside of this manual. Read books/magazines or get formal training before beginning any proj­ects. Regardless of the content in this sec­tion, Grizzly Industrial will not be held liable for accidents caused by lack of training.
-17-
Page 20

Choosing Air Hose

There are many options when it comes to hoses. The most important aspects for an air compressor are going to be length, diameter, and fittings. The material of the hose is also an important consid­eration, but this will depend more on your applica­tion and preference.
Length
Consider your applications before deciding on a hose length. Longer hoses, or hose connections to extend hose length, can increase your mobility, but will probably result in some pressure loss.
If your work area will be small, you may be able to use a shorter hose without having to move the compressor or stretch the hose. Never pull the hose to move the compressor or put any unneces­sary stress on the hose, valves, fittings, or tank.
Fittings
Many hoses come with fittings installed. The sim­plest option is to find a hose with two fittings: one that matches the compressor output port, and one that matches your intended attachment tool. If the hose does not match the port, a coupler may be needed.
You will need to determine the size of the fit­tings and whether they are male or female (see Figure 15). A male fitting can only attach to a female fitting, and vice versa. There are also a number of coupler/plug styles on the market, so be sure the two match or you will likely not have an airtight connection.
An air compressor becomes very hot during oper­ation, and the pressure switch and motor often produce sparks. Some applications, like spraying or sanding, involve flammable material that cre­ate a fire or combustion hazard when they are performed too close to a compressor. The hose length must allow for the air compressor to remain at least 20 feet away from the operation.
Diameter
A larger inner diameter will allow for high airflow delivery. Refer to Airflow Delivery (CFM) on Page 19 for more information. The higher CFM a tool requires, the larger the inner diameter of the hose will need to be (see Figure 14).
Airflow Delivery Required ID
0–3 CFM
3.1–5.9 CFM
6+ CFM
Figure 14. Recommended hose inner diameters.
1
4" (3mm)
1
4"–3⁄8" (3mm–10mm)
3
8"+ (10mm+)
Male
Coupler
Figure 15. Example of male and female fittings.
The outlet ports on the T32337 are 1⁄4" NPT female quick-couplers (see Figure 16), so you will need a for each port.
1
Male
Plug
4" NPT male plug attached to the hose
Female
Coupler
Quick-Coupler
(1 of 2)
Female
Plug
-18-
Figure 16. Location of quick-coupler outlet ports.
Model T32337 (Mfd. Since 05/22)
Page 21

Connecting Air Tool

There are various air tools that can be connected to your air compressor by means of an air hose, and the setup will vary little across tools, but there are a couple things to keep in mind before con­necting a tool or hose.
2
Operating Pressure (Pounds/Inch
Your second consideration should be the recom­mended or required operating pressure of your tool. An air tool recommended for 70 PSI should never be connected to a hose or system set to higher than that operating pressure, as the tool or valves could burst. A regulator allows tools with a lower rating than the system to still be attached, because the line can be adjusted to a safe level.
)
Airflow Delivery (CFM)
The first consideration when choosing an air tool is whether or not the air delivery is compatible with your compressor. Smaller compressors, capable of less than 5 CFM, only supply enough pressure for smaller air tools like nailers, staplers, chippers, chisels, grinders, sanders, tire inflators, and paint sprayers. Air hammers, impact wrenches, impact hammers, and blow guns will probably require a larger compressor capable of 10-110 CFM.
Duty Cycle
The duty cycle of your compressor will also have an effect on how efficient the airflow delivery is. Refer to Figure 17 for some common duty cycles and what they mean.
Compressor can be used for up to half
50/50
60/40
75/25
85/15
100
Compressing air produces a lot of heat, so the pump and motor require some resting time in order to cool down. The "cycle" of an air compres­sor refers to how long it takes for the compressor to be used and subsequently cooled. The duty cycle dictates what percentage of the cycle you can spend using air before it must rest.
of its cycle (spends same amount of time resting as it does working).
Compressor can be used for up to 60% of its cycle; spends 40% of time resting.
Compressor can be used for up to 75% of its cycle; spends 25% of time resting.
Compressor can be used for up to 85% of its cycle; spends 15% of time resting.
Compressor does not need to rest. Engine/motor has a cooling component allowing for constant air delivery.
Figure 17. Common duty cycles.
The Model T32337 has a regulator and pressure gauge for controlling and observing your line pres­sure, making it require very little setup.
Connecting Air Tool
Use the following steps as a guide for attaching an air tool. As there are a wide variety of tool and hose options, your connections may differ slightly from this very simple outline.
Items Needed Qty
Air Tool (Rated for 90 PSI or Less) ................... 1
Air Hose Additional Connection Fittings
Always wear personal protective equipment required by air tool you are using. Pneumatic grinders, sanders, paint sprayers, etc., require a respirator to protect against long-term respiratory damage. Prolonged exposure to tools with high sound ratings can result in hearing loss without the use of hearing protection.
............................................................. 1
........... As Needed
Eye injury hazard! Always wear safety glasses when handling pressurized air system.
Model T32337 (Mfd. Since 05/22)
-19 -
Page 22
To connect air tool:
Turn regulator knob (see Figure 18) all the
1.
way counterclockwise.
Regulator
Knob
Figure 18. Location of regulator knob.
2. Insert air hose male plug into quick-connect coupler (see Figure 19).
Note: When plug is fully seated, coupler will
automatically lock it in place.
Disconnecting Air Tool
Eye injury hazard! Always wear safety glasses when handling pressurized air system.
Pressurized air escaping through valves/ fittings can be extremely loud. Protect hearing with ANSI-approved hearing protection in following steps.
To disconnect air tool:
Turn regulator knob (see Figure 18) all the
1.
way counterclockwise.
Disconnect air tool from hose.
2.
3. Push coupler sleeve toward compressor to
release hose plug (see Figure 20).
Plug
Quick-Connect
Coupler
Figure 19. Plug inserted into coupler.
3.
Connect other end of hose to air tool.
Note: Refer to air tool instructions for speci-
fications, method of connection, and proper use of tool.
Note: Air will escape when connection is bro-
ken if tank is still pressurized.
Plug
Coupler
Sleeve
Figure 20. Pushing coupler sleeve to release
plug.
-20-
Model T32337 (Mfd. Since 05/22)
Page 23
ACCESSORIES
Installing unapproved accessories may
order online at www.grizzly.com or call 1-800-523-4777

SECTION 5: ACCESSORIES

cause machine to malfunction, resulting in serious personal injury or machine damage. To reduce this risk, only install accessories recommended for this machine by Grizzly.
Basic Eye Protection
T20501—Face Shield Crown Protector 4" T20502—Face Shield Crown Protector 7" T20503—Face Shield Window T20451—“Kirova” Clear Safety Glasses T20456—DAKURA Safety Glasses, Black/Clear
NOTICE
Refer to our website or latest catalog for additional recommended accessories.
H2499—Small Half-Mask Respirator H3631—Medium Half-Mask Respirator H3632—Large Half-Mask Respirator H3635—Cartridge Filter Pair P100
Wood dust has been linked to nasal cancer and severe respiratory illnesses. If you work around dust everyday, a half-mask respirator can be a lifesaver. Also compatible with safety glasses!
T20503
T20501
T20456
Figure 22. Assortment of basic eye protection.
H4978—Deluxe Earmuffs - 27dB H4979—Twin Cup Hearing Protector - 29dB T31617—Foam Earplugs, 7-pairs - 32dB
Protect yourself comfortably with hearing protec­tion. Especially important if you or employees operate for hours at a time.
T20502
T20451
Figure 21. Half-mask respirator with disposable
H4979
cartridge filters.
H4978
Figure 23. Hearing protection.
Model T32337 (Mfd. Since 05/22)
T31617
-21-
Page 24

SECTION 6: MAINTENANCE

Daily Maintenance
Open drain valve to drain any condensation.
Compressor will turn ON automatically when pres­sure switch is set to AUTO. To reduce risk of shock/ accidental startup, always disconnect machine from power before adjustments, maintenance, or service.
Eye injury hazard! Always wear safety glasses when maintaining pressurized air system.
Test function of safety relief valve and clear any obstructions.
Releasing air through safety relief valve or drain valve can be extremely loud. Protect hearing with ANSI-approved hearing protection when testing/draining valves.
Weekly Maintenance
Check air filters.
Clean/vacuum dust buildup off compressor.
Do not touch compressor head or discharge line during use or immediately after compressor is active. These hot parts may cause burns. Allow compressor to cool before handling.

Schedule

For optimum performance from this machine, this maintenance schedule must be strictly followed.
Ongoing
To minimize your risk of injury and maintain proper machine operation, shut down the machine imme­diately if you ever observe any of the following items, and fix the problem before continuing operations:
Do not use flammable cleanser to clean machine. Compressor components often produce sparks that could ignite once machine is connected to power and turned ON.
Semiannual Maintenance
Check hoses/connections for leaks. If soapy water at suspected leak creates bubbles, air is escaping. Repair or replace affected parts.

Lubrication

The Model T32337 is an oil-free air compres­sor, so no lubrication is necessary. Refer to the instructions of any attached air tools to determine if they require air line lubrication before they are connected.
Damaged safety relief valve, pressure switch, or drain valve.
Worn or damaged wires, cords, and plugs.
Tank rust/corrosion.
Any other unsafe condition.
-22-
Model T32337 (Mfd. Since 05/22)
Page 25

Draining Tank

Checking Air Filters

Some water may accumulate in the tank depend­ing on usage and humidity. Drain water from the tank daily to increase the lifespan of the compres­sor and air tools and to prevent tank corrosion.
To drain tank:
DISCONNECT MACHINE FROM POWER!
1.
Releasing air through safety relief valve can be extremely loud. Protect hearing with ANSI-approved hearing protection in following step.
2. Use safety relief valve to reduce tank pres-
sure to less than 10 PSI.
Open drain valve (see Figure 24) to drain
3.
condensation from tank.
The air filters help prevent impurities and dust from entering the compressor and reduce noise. Dirty filters will result in a less efficient system and could become a fire hazard.
To check air filters:
1. DISCONNECT MACHINE FROM POWER!
Releasing air through safety relief valve can be extremely loud. Protect hearing with ANSI-approved hearing protection in following step.
2. Use safety relief valve to reduce tank pres-
sure to less than 10 PSI.
While holding base of filter assembly in place,
3.
turn filter cap counterclockwise to remove cap (see Figure 25).
Drain Valve
Handle
Figure 24. Drain valve handle open.
Base
Cap
Figure 25. Air filter assembly components.
— If filter is fairly clean and there has not
been a drop in efficiency of compressor, replace cap. No replacement is required.
— If filter is dirty or clogged, or there has
been a drop in efficiency of compressor, replace cap. Proceed to Step 4.
Repeat Step 3 for second filter assembly.
4.
Replace old filter(s) with new filter element(s)
5. (refer to Part #2 in Parts beginning on Page 34).
Model T32337 (Mfd. Since 05/22)
-23-
Page 26

Machine Storage

All machinery will develop serious rust problems and corrosion damage if it is not properly prepared for storage. Use the steps in this section to ensure that your machine remains in good condition.
To bring machine out of storage, perform the Test
Run beginning on Page 15.
Eye injury hazard! Always wear safety glasses when handling pressurized air system.
To prepare machine for storage:
1. DISCONNECT MACHINE FROM POWER!
Releasing air through safety relief valve can be extremely loud. Protect hearing with ANSI-approved hearing protection while performing following step.
2. Use safety relief valve to reduce tank pres-
sure to less than 10 PSI.
Open drain valve to drain any condensation
3.
from tank.
Disconnect air tool and hose from machine.
4.
Items Needed Qty
Cleaner/Degreaser ............................ As Needed
.................................................. As Needed
Rags Tarp or Plastic Sheet
T23951—Blue Tarp 8' x 10'
Made of woven polyethylene, these tarps are weather and tear resistant. They have UV lamina­tion, heat-sealed seams, grommets, and rein­forced edging with strong poly rope inside the hem on all four sides.
......................................... 1
5. Clean machine.
Do not use a flammable cleanser to clean machine. Compressor components often produce sparks that could ignite once machine is connected to power and turned ON.
6.
Cover machine with tarp or plastic sheet that
will keep out dust and resist liquid or mois­ture. If machine will be stored in/near direct sunlight, use cover that will block UV rays.
Figure 26. T23951 Blue Tarp 8' x 10'.
-24-
Model T32337 (Mfd. Since 05/22)
Page 27

Checking for Leaks

Air leaks will cause low air output and increase the time the compressor must run.
Fixing Leaks
Item Needed Qty
Wire Brush ......................................................... 1
Thread Sealing Tape or Pipe Dope
To fix leaks:
... As Needed
Checking for Leaks
1. Disconnect tool and hose from compressor.
2. Turn ON compressor and allow tank to fill
until cut-out pressure is reached (150 PSI).
DISCONNECT MACHINE FROM POWER!
3.
4. Listen for sound of air to find possible leak.
— If you do not hear air escaping, and pres-
sure in tank does not change, there is no leak.
— If you do hear air escaping, or pressure
in tank drops even with safety relief valve and drain valve closed, proceed to Step 5.
Spray suspected air leak with soap and water
5.
solution and look for air bubbles.
— If bubbles do not form, repeat at different
location.
DISCONNECT MACHINE FROM POWER!
1.
Releasing air through safety relief valve can be extremely loud. Protect hearing with ANSI-approved hearing protection while performing following step.
2. Use safety relief valve to reduce tank pres-
sure to less than 10 PSI.
Open drain valve to relieve any remaining air.
3.
4. Remove fitting or valve that is leaking.
5. Clean threads, apply thread sealing tape or
pipe dope to threads, then re-install part.
Note: If a fitting or valve continues to leak
after preceding steps, replace part.
— If bubbles do form, proceed to Fixing
Leaks.
Model T32337 (Mfd. Since 05/22)
-25-
Page 28
Review the troubleshooting procedures in this section if a problem develops with your machine. If you need
the
serial number and manufacture date of your machine before calling.

SECTION 7: SERVICE

replacement parts or additional help with a procedure, call our Technical Support. Note: Please gather

Troubleshooting

Motor & Electrical
Symptom Possible Cause Possible Solution
Machine does not start, or power supply breaker immediately trips after startup.
Machine stalls or is underpowered.
1. Tank already pressurized.
2. Internal overload tripped.
3. Incorrect power supply voltage or circuit size.
4. Pressure switch cut-in/cut-out settings have been adjusted incorrectly.
5. Power supply circuit breaker tripped or fuse blown.
6. Tripped thermal overload in motor, compressor is exceeding its duty cycle.
7. Wiring broken, disconnected, or corroded.
8. Check valve components are dirty/damaged.
9. Pressure switch at fault.
10. Internal overload at fault.
11. Motor or motor bearings at fault.
1. Air filter(s) dirty/clogged.
2. Pump/motor have restricted airflow.
3. Pressure switch cut-in/cut-out settings have been adjusted incorrectly.
4. Motor overheated, tripping internal overload; compressor is exceeding its duty cycle.
5. Run capacitor at fault.
6. Extension cord too long.
7. Check valve components are dirty/damaged.
8. Motor or motor bearings at fault.
9. Worn valves or rings/compressor pump at fault.
1. Motor will not start if tank is fully pressurized.
2. Disconnect machine from power, allow pump to cool, then resume operations.
3. Ensure correct power supply and circuit size (Page 11).
4. Adjust settings (Page 30). Do not exceed cut-in/cut­out pressures listed on data sheet (Page 6) or inside pressure switch.
5. Ensure circuit is free of shorts. Reset circuit breaker or replace fuse.
6. Reduce load on compressor and allow longer cool down periods.
7. Fix broken wires or disconnected/corroded connections.
8. Clean/replace check valve components (Page 29).
9. Turn compressor OFF, disconnect from power, and empty tank. DO NOT USE until switch is replaced.
10. Replace pump.
11. Replace motor.
1. Replace air filter(s) (Page 23).
2. Clean cylinder fins, motor fan, and vent area.
3. Adjust settings (Page 30). Do not exceed cut-in/cut­out pressures listed on data sheet (Page 6) or inside pressure switch.
4. Reduce load on compressor and allow longer cool down periods. Clean motor, let cool, and reduce workload. Reset breaker.
5. Test/repair/replace.
6. Move machine closer to power supply; use shorter extension cord.
7. Clean/replace check valve components (Page 29).
8. Replace motor.
9. Rebuild/replace.
-26-
Model T32337 (Mfd. Since 05/22)
Page 29
Motor & Electrical (Cont.)
Symptom Possible Cause Possible Solution
Machine has vibration or noisy operation.
Motor runs continuously.
Pressure relief valve stays open and motor will not stop running.
1. Motor or component loose.
2. Wheels or machine feet loose.
3. Motor fan rubbing on fan cover.
4. Motor bearings at fault.
5. Compressor pump at fault.
1. Machine is undersized.
2. Regulator needs to be adjusted for lower airflow delivery.
3. Air leak in tank or delivery pipes.
4. Pressure switch at fault.
1. Pressure switch cut-in/cut-out settings have been adjusted incorrectly.
2. Pressure switch at fault, unit is trying to overpressurize tank.
3. Pressure relief valve at fault/relieving pressure too early.
1. Replace damaged or missing bolts/nuts or tighten if loose.
2. Tighten fasteners.
3. Fix/replace fan cover; replace loose/damaged fan.
4. Test by rotating shaft; rotational grinding/loose shaft requires bearing replacement.
5. Compressor piston rod/bearings/crankshaft is worn. Rebuild or replace pump.
1. Use a smaller attachment tool or a larger air compressor.
2. Turn regulator knob counterclockwise to decrease line PSI.
3. Check air tank, pipes, and all connections for leaks (Page 25). Do not attempt to repair leaking/damaged tank, only replace.
4. Turn compressor OFF, disconnect from power, and empty tank. DO NOT USE until switch is replaced.
1. Adjust settings (Page 30). Do not exceed cut-in/cut­out pressures listed on data sheet (Page 6) or inside pressure switch.
2. Turn compressor OFF, disconnect from power, and empty tank. DO NOT USE until switch is replaced.
3. Replace.
Operation
Symptom Possible Cause Possible Solution
Air leaks from pressure switch.
Low pressure in tank, or tank pressure drops after compressor is turned OFF.
Compressor knocking.
1. Check valve components are dirty/damaged.
2. Pressure switch at fault.
1. Drain valve is open.
2. Air filter(s) dirty/clogged.
3. Regulator needs to be adjusted for lower airflow delivery.
4. Pressure switch cut-in/cut-out settings have been adjusted incorrectly.
5. Air leak in tank or delivery pipes.
6. Check valve components are dirty/damaged.
7. Pressure relief valve releasing below 150 PSI.
8. Gasket(s) leaking.
9. Worn pump piston rings.
1. Air filter(s) dirty/clogged.
2. Piston assembly loose.
1. Clean/replace check valve components (Page 29).
2. Turn compressor OFF, disconnect from power, and empty tank. DO NOT USE until switch is replaced.
1. Close drain valve.
2. Replace air filter(s) (Page 23).
3. Turn regulator knob counterclockwise to decrease line PSI.
4. Adjust settings (Page 30). Do not exceed cut-in/cut­out pressures listed on data sheet (Page 6) or inside pressure switch.
5. Check air tank, pipes, and all connections for leaks (Page 25). Do not attempt to repair leaking/damaged tank, only replace.
6. Clean/replace check valve components (Page 29).
7. Replace pressure relief valve.
8. Check gaskets on cylinder head assemblies, repair or replace as needed.
9. Inspect and replace pump piston rings.
1. Replace air filter(s) (Page 23).
2. Inspect and repair piston and connecting rod.
Model T32337 (Mfd. Since 05/22)
-27-
Page 30
Operation (Cont.)
Symptom Possible Cause Possible Solution
Compressor does not build air pressure, or does not reach full pressure.
Air leaks from air filter(s).
Air tools have oily discharge.
Air tools have watery discharge or get cold and freeze up with ice during use.
Air tool has low supply pressure but compressor has sufficient air pressure.
Safety relief valve leaks.
Delivered air is dirty or has excessive moisture.
1. Drain valve is open.
2. Tank needs to be drained.
3. Air filter(s) dirty/clogged.
4. Air leak in tank or delivery pipes.
5. Check valve components are dirty/damaged.
6. Reed valve(s) not sealing.
7. Head gasket or valve body gasket leaking.
8. Worn pump piston rings.
9. Broken crankshaft or connecting rod.
1. Check valve components are dirty/damaged.
2. Reed valve(s) not sealing.
1. Tank needs to be drained.
2. In-line oiler is out of adjustment (if used).
3. In-line filter is damaged or missing (if used).
4. Compressor pump is at fault.
1. Tank needs to be drained.
2. In-line water separator is full (if used).
3. Ambient environment has too much humidity.
1. Air hose is too long.
2. Regulator needs to be adjusted for higher airflow delivery.
3. Machine is undersized.
4. In-line filter is damaged or clogged (if used).
5. In-line water separator is full (if used).
6. Pressure switch cut-in/cut-out settings have been adjusted incorrectly.
7. Air leaks in hose.
8. Regulator at fault.
9. Pressure gauge(s) at fault.
1. Pressure switch cut-in/cut-out settings have been adjusted incorrectly.
2. Safety relief valve at fault.
3. Pressure switch at fault.
1. Tank needs to be drained.
2. Delivery pipes are dirty (if used).
1. Close drain valve.
2. Open drain valve to drain condensation, then close.
3. Replace air filter(s) (Page 23).
4. Check air tank, pipes, and all connections for leaks (Page 25). Do not attempt to repair leaking/damaged tank, only replace.
5. Clean/replace check valve components (Page 29).
6. Remove cylinder head and replace reed valve(s).
7. Remove cylinder head and replace gasket(s).
8. Inspect and replace pump piston rings.
9. Replace or rebuild compressor pump.
1. Clean/replace check valve components (Page 29).
2. Remove cylinder head and replace reed valve(s).
1. Open drain valve to drain condensation.
2. Adjust in-line oiler drip ratio or use correct viscosity oil.
3. Replace filter or in-line filter assembly.
4. Worn compressor piston, rings, or valves. Rebuild or replace pump.
1. Open drain valve to drain condensation.
2. Drain water separator.
3. Install in-line air dryer and water separator.
1. Use shorter hose.
2. Turn regulator knob clockwise to increase line PSI. DO NOT exceed pressure rating of attached tool.
3. Use a smaller attachment tool or a larger air compressor.
4. Replace filter or in-line filter assembly.
5. Drain water separator.
6. Adjust settings (Page 30). Do not exceed cut-in/cut­out pressures listed on data sheet (Page 6) or inside pressure switch.
7. Check air hoses and all connections for leaks (Page 25).
8. Inspect regulator for leaks. Replace if at fault.
9. Replace pressure gauge(s).
1. Adjust settings (Page 30). Do not exceed cut-in/cut­out pressures listed on data sheet (Page 6) or inside pressure switch.
2. Test/replace.
3. Turn compressor OFF, disconnect from power, and empty tank. DO NOT USE until switch is replaced.
1. Open drain valve to drain condensation.
2. Remove delivery pipes, clean out and replace.
-28-
Model T32337 (Mfd. Since 05/22)
Page 31
Inspecting
Check Valve
The check valve pushes compressed air into the tank and prevents it from flowing back toward the pump. The diaphragm in the check valve can become damaged, twisted, or dirty and cause the valve to leak or prevent the compressor from pressurizing.
Tool Needed Qty
Wrench or Socket 19mm ................................... 1
Eye injury hazard! Always wear safety glasses when handling pressurized air system.
4. Remove cap, shown in Figure 28, from
check valve.
Check Valve
Cap
Figure 28. Location of check valve cap.
5.
Inspect seal ring and diaphragm (see Figure
29) for damage and dirt.
To inspect check valve:
DISCONNECT MACHINE FROM POWER!
1.
Releasing air through safety release valve can be extremely loud. Protect hearing with ANSI-approved hearing protection while performing following step.
2. Use safety relief valve to reduce tank pres-
sure to less than 10 PSI.
Open drain valve to release any remaining air
3.
(see Figure 27).
Diaphragm
Seal Ring
Figure 29. Check valve components.
6. Replace any damaged parts and clean any
dirt from diaphragm and seal ring.
Re-install check valve/cap.
7.
IMPORTANT: Make sure diaphragm presses
squarely against discharge line and exhaust tube opening.
Drain Valve
Handle
Figure 27. Drain valve handle open.
Model T32337 (Mfd. Since 05/22)
Note: Do not add thread sealant or thread
sealing tape to cap threads. Seal ring pro­vides sufficient sealing.
-29-
Page 32
Adjusting Cut-In/
Cut-Out Settings
The pressure switch ensures the compressor will turn ON when the tank pressure drops to approxi­mately 120 PSI (the cut-in pressure), and will turn OFF when the tank pressure reaches 150 PSI (the cut-out pressure). Should the pressure switch fail to turn OFF the machine, the safety relief valve will open shortly after the pressure exceeds 150 PSI and prevent over-pressurization.
Tools Needed Qty
Phillips Head Screwdriver #2 ............................ 1
Flat Head Screwdriver
Cut-in and cut-out settings have been factory set at proper PSI range. Only adjust pressure switch settings if compressor is cutting-in or cutting-out at incorrect pressures. Tank could burst if filled with more pressure than it is designed for.
1
4" .................................. 1
Releasing air through safety relief valve can be extremely loud. Protect hearing with ANSI-approved hearing protection while performing following step.
3. Use safety relief valve to reduce tank pres-
sure to less than 10 PSI.
Remove Phillips head screw shown in
4. Figure 30 to remove pressure switch cover.
Pressure Switch
Cover
Eye injury hazard! Always wear safety glasses when handling pressurized air system.

Adjusting Cut-In/Cut-Out Settings

If the minimum and maximum tank pressure set­tings both have to be raised or lowered at the same time, then follow these steps.
To adjust cut-in/cut-out settings:
Operate compressor and record cut-in and
1.
cut-out pressures.
DISCONNECT MACHINE FROM POWER!
2.
Figure 30. Location of pressure switch cover
Phillips head screw.
5.
Adjust screw shown in Figure 31 to change
minimum and maximum tank pressure settings.
Cut-In/Cut-Out
Adjustment Screw
Figure 31. Location of cut-in/cut-out adjustment
screw.
-30-
Model T32337 (Mfd. Since 05/22)
Page 33
— Turn screw half turn clockwise to increase
both settings.
— Turn screw half turn counterclockwise to
decrease both settings.
Install pressure switch cover.
6.
7. Connect machine to power, start compres-
sor, and cycle compressor through cut-in/ cut-out pressures. If compressor does not automatically turn OFF at 150 PSI, turn machine OFF before pressure reaches 155 PSI. Adjust pressure switch settings until cut­out pressure is 150 PSI or lower.
Adjusting Only Cut-Out Setting
If only the maximum tank pressure setting needs to be adjusted, then follow these steps. Keep in mind that the allowable pressure differential between cut-in pressure and cut-out pressure must be kept between 30–40 PSI. Exceeding this range can cause the compressor to overheat.
Pressure Switch
Cover
Figure 32. Location of pressure switch cover
Phillips head screw.
Adjust screw shown in Figure 33 to change
5.
maximum tank pressure setting.
To adjust only cut-out setting:
Operate compressor and record cut-in and
1.
cut-out pressures.
DISCONNECT MACHINE FROM POWER!
2.
Releasing air through safety relief valve can be extremely loud. Protect hearing with ANSI-approved hearing protection while performing following step.
3. Use safety relief valve to reduce tank pres-
sure to less than 10 PSI.
Remove Phillips head screw shown in
4. Figure 32 to remove pressure switch.
Cut-Out
Adjustment
Screw
Figure 33. Location of cut-out only adjustment
screw.
— Turn screw half turn clockwise to increase
tank pressure.
— Turn screw half turn counterclockwise to
decrease tank pressure.
Install pressure switch cover.
6.
7. Connect machine to power, start compres-
sor, and cycle compressor through cut-in/ cut-out pressures. If compressor does not automatically turn OFF at 150 PSI, turn machine OFF before pressure reaches 155 PSI. Adjust pressure switch settings until cut­out pressure is 150 PSI or lower.
Model T32337 (Mfd. Since 05/22)
-31-
Page 34
These pages are current at the time of printing. However, in the spirit of improvement, we may make chang­es to the electrical systems of future machines. Compare the manufacture date of your machine to the one
number and manufacture date of your
machine before calling. This information can be found on the main machine label.
machine

SECTION 8: WIRING

stated in this manual, and study this section carefully.
If there are differences between your machine and what is shown in this section, call Technical Support at (570) 546-9663 for assistance BEFORE making any changes to the wiring on your machine. An updated wiring diagram may be available. Note: Please gather the serial

Wiring Safety Instructions

SHOCK HAZARD. Working on wiring that is con-
nected to a power source is extremely dangerous. Touching electrified parts will result in personal injury including but not limited to severe burns, electrocution, or death. Disconnect the power from the machine before servicing electrical com­ponents!
MODIFICATIONS. Modifying the wiring beyond what is shown in the diagram may lead to unpre­dictable results, including serious injury or fire. This includes the installation of unapproved after­market parts.
WIRE CONNECTIONS. All connections must be tight to prevent wires from loosening during machine operation. Double-check all wires dis­connected or connected during any wiring task to ensure tight connections.
CIRCUIT REQUIREMENTS. You MUST follow the requirements at the beginning of this manual when connecting your machine to a power source.
WIRE/COMPONENT DAMAGE. Damaged wires or components increase the risk of serious per­sonal injury, fire, or machine damage. If you notice that any wires or components are damaged while performing a wiring task, replace those wires or components.
MOTOR WIRING. The motor wiring shown in these diagrams is current at the time of printing but may not match your machine. If you find this to be the case, use the wiring diagram inside the motor junction box.
CAPACITORS/INVERTERS. Some capacitors and power inverters store an electrical charge for up to 10 minutes after being disconnected from the power source. To reduce the risk of being shocked, wait at least this long before working on capacitors.
EXPERIENCING DIFFICULTIES. If you are expe­riencing difficulties understanding the information included in this section, contact our Technical Support at (570) 546-9663.
The photos and diagrams included in this section are best viewed in color. You can view these pages in color at www.grizzly.com.
-32-
Model T32337 (Mfd. Since 05/22)
Page 35
Hot
120 VAC
5-15 Plug
Neutral
Ground

Wiring Diagram

PRESSURE
MOTOR
LINE
GND
SWITCH
LEFOO LF10-4H
MOTOR 120V
Run Capacitor
CBB60 120uF 250V
Figure 34. Pressure switch wiring. Figure 35. Run capacitor wiring.
Model T32337 (Mfd. Since 05/22)
READ ELECTRICAL SAFETY
ON PAGE 32!
-33-
Page 36

SECTION 9: PARTS

To order parts, contact MEGA by phone at (832) 415 -6995 or email at CS@megacompressor.com.

Main

71
51
79
52
48
1
2
3
27
50
25
43 46
11
13
15
9
45
40
77
78
53
55
56
38
47
76
24
69
26
16
37
8
10
12
14
35
74
36
75
6
4
18 20
23
34
65
33
32
31
49
44
17
19
21 22
39
42
66
67
41
72
73
7
30
40
5
29
28
-34-
57
54
81
58
82
59
60
61
62
68
70
64
63
Model T32337 (Mfd. Since 05/22)
Page 37
REF DES CRIPTION QTY REF DESCRI PTION QTY
Main Parts List
1 FILTER COVER 2 42 HA NDLE GRI P 1 2 FILTER ELEMENT 2 43 E LBOW FI TTI NG 1 3 FILTER BASE 2 44 ROLL CAGE 1 4 O-RING 19 X 2.8 4 45 TUB E 1 5 GASKET 12 46 L OCK RI NG 2 6 CONNECTI NG TUBE 2 47 FLARE NUT 3/8-24 1 7 HEX BOLT M6-1 X 65 12 48 PRESSURE SWITCH LEFOO LF10-4H 1 8 CYLI NDER HEAD 2 49 CHECK VALVE NUT 1
9 RUBBER MAT 2 50 CORD CLI P 2 10 PHLP HD SCR M4-.7 X 8 2 51 POWER CORD 14G 3W 72" 5-15P 1 11 LOCKING BLOCK 2 52 TANK PRESSURE GAUGE 1 12 UPPER VALVE PLATE 2 53 CAP SCREW M6-1 X 6 1 13 VALVE DISC 2 54 LI NE PRESSURE GAUGE 1 14 LOWER VALVE PLATE 2 55 REGULATOR 1 15 BUMPER 2 56 UNIVERSAL QUICK-COUPLER 1/4" NPT 1 16 PHLP HD SCR M4-.7 X 6 2 57 SHOULDER BOLT 3/8-16 X 9/16, 7/16 X 1-15/ 16 2 17 O-RING 75 X 2.8 2 58 WHEEL 2 18 CY LI NDER 2 59 FLAT WASHER 3/8 2 19 PHLP HD SCR M6-1 X 16 2 60 HEX NUT 3/8-16 2 20 PRESSURE PLATE 2 61 FL AT WASHER 5MM 2 21 P I S TON RI NG 2 62 RUBBER FOOT 2 22 CO NNECTI NG ROD 2 63 HEX BOLT M5-.8 X 25 2 23 BALL BEARING 6204ZZ 2 64 BALL DRAIN VALVE 1 24 CAP SCREW M6-1 X 18 2 65 CHECK VALVE 1 25 CRA NKCASE 2 66 SAFETY VALVE 1 26 B USHI NG 1 67 VIBRATION DAMPENER 6 27 R CAPACITOR 120M 250V 1-3/4 X 3-1/2 1 68 HE X NUT M8- 1. 25 6 28 HEX BOLT M5-.8 X 130 4 69 CONTROL PANEL 1 29 LOCK WASHER 5MM 4 70 TA NK 1 30 FAN COVER 2 71 DIS CHARGE TUBE 2 31 TAP SCREW M4 X 12 4 72 HEX BOLT M4-.7 X 10 2 32 FA N 2 73 FL AT WASHER 4MM 2 33 LOCK BLOCK 2 74 HEAD COVER CLAMP 2 34 E CCENTRI C BEARI NG 2 75 PHLP HD SCR M4-.7 X 12 4 35 STATOR 1 76 S TRAI GHT FI TTI NG 1 36 RO TOR 1 77 PHLP HD SCR M5-.8 X 12 6 37 BALL BEARING 6908ZZ 2 78 GASKET 6 38 E XT RETAI NI NG RI NG 14MM 2 79 BLOCK PLATE 2 39 PAD 2 81 FLAT WASHER 13 X 14 X 2MM 4 40 HEAD COVER (PLASTIC) 2 82 INT TOO TH WASHE R 3/ 8 2 41 CAPACITOR COVER 1
Model T32337 (Mfd. Since 05/22)
-35-
Page 38
103V2

Labels & Cosmetics

REF PART # DES CRIPTI ON REF P ART # DES CRIPTI ON
110
109V2
Specifications
Motor: 2.5 HP, 120V, 1-Ph, 60 Hz Full-Load Current Rating: 13.5A Pump Type: One-Stage Max. Airflow @ 90 PSI: 5.6 SCFM Cut-Out Pressure: 150 PSI Cut-In Pressure: 120 PSI Duty Cycle: 50/50 Tank Size: 20 Gallons Connection Type: Quick-Coupler Connection Size: 1/4" NPT Weight: 136 lbs.
Date
Mfd. for Grizzly in China
20-GALLON OIL-FREE QUIET AIR COMPRESSOR
To reduce the risk of serious injury when using this machine:
1. Read and understand owner’s manual before operating.
2. Always wear ANSI-approved eye protection and any additional personal protective equipment required by attachment tools.
3. Only plug power cord into a grounded outlet. Do not use with grounding adapter.
4. DO NOT use this air compressor for breathable air supply.
5. DO NOT touch compressor parts during or immediately following operation. These parts will be hot.
6. Always disconnect power and drain air tank before moving or servicing. DO NOT pull compressor by power cord or air hose.
7. DO NOT adjust or remove safety valve or modify machine.
8. Only operate in well-ventilated area free of combustible materials. DO NOT smoke while spraying, and do not spray flammable material in confined area near flame/compressor.
S/N
Locate compressor at least 20 feet from spray area.
_
111
MODEL T32337
WARNING!
9. Only operate with all guards, covers, and parts in place.
10. Never leave machine running unattended.
11. DO NOT use if cord, plug, or any other electrical equipment becomes damaged—promptly repair!
12. DO NOT stand on compressor, or obstruct airflow to ventilation.
13. DO NOT exceed pressure rating of tools or attachments.
14. DO NOT aim compressed air at body or people.
15. Inspect compressor, air lines, valves, and tank for damage,
leaks, weakness, looseness, or excessive wear. Repair/replace
defective items before operating.
16. Drain moisture from tank after each use and promptly replace a damaged tank. DO NOT attempt to weld on, modify, repair tank.
17. DO NOT expose to rain or use in wet locations.
18. DO NOT operate under influence of drugs, alcohol or when tired.
19. Prevent unauthorized use by children or untrained users.
101
TANK
PRESSURE
112
DRAIN TANK
AFTER
EVERY USE!
20
102
REGULATOR
PRESSURE
GALLON
MAX PRESSURE
150 PSI
+
5.6 CFM
@
90 PSI
2.5 HP
104
105
106
108
T32337
107
grizzly.com
101 PT32337101 TANK PRESSURE LABEL 107 PT32337107 GRIZZLY.COM LABEL 102 PT32337102 REGULATOR PRESSURE LABEL 108 PT32337108 MODEL NUMBER LABEL 103V2 PT32337103V2 SPECIFICATION LABEL V2.05.22 109V2 PT32337109V2 MACHINE ID LABEL V2.05. 22 104 PT32337104 TOUCH-UP PAI NT, GRIZZLY BLA CK 110 PT32337110 GRIZZLY PRO LABEL 105 PT32337105 ELECTRICITY LABEL 111 PT32337111 DRAIN TANK LABEL 106 PT32337106 TOUCH-UP PAI NT, GRIZZLY GREE N 112 PT32337112 REGULATOR LABEL
Safety labels help reduce the risk of serious injury caused by machine hazards. If any label comes off or becomes unreadable, the owner of this machine MUST replace it in the original location before resuming operations. For replacements, contact (800) 523-4777 or www.grizzly.com.
-36-
Model T32337 (Mfd. Since 05/22)
Page 39

WARRANTY & RETURNS

Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse, negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty and any and all warranties that may be implied by law, including any merchantability or fitness, for any par­ticular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants. In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special, or consequential damages arising from the use of our products.
The manufacturers reserve the right to change specifications at any time because they constantly strive to achieve better quality equipment. We make every effort to ensure that our products meet high quality and durability standards and we hope you never need to use this warranty.
In the event you need to use this warranty, contact us by mail or phone and give us all the details. We will then issue you a “Return Number,’’ which must be clearly posted on the outside as well as the inside of the carton. We will not accept any item back without this number. Proof of purchase must accompany the merchandise.
Please feel free to write or call us if you have any questions about the machine or the manual.
Thank you again for your business and continued support. We hope to serve you again soon.
To you can applicable information for
take advantage of this warranty, you must register it at https://www.grizzly.com/forms/warranty, or
scan the QR code below to be automatically directed to our warranty registration page. Enter all
the product.
WARRANTY
Page 40
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