Grizzly G0954 Owner's Manual
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Grizzly G0954 Owner's Manual

Stationary air compressors
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MODEL G0954, G0955,
G0956, & G0957
STATIONARY AIR
COMPRESSORS
OWNER'S MANUAL
(For models manufactured since 11/21)
COPYRIGHT © NOVEMBER, 2022 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#CS22333 PRINTED IN USA
V1.11.22
***Keep for Future Reference***

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Summary of Contents for Grizzly G0954

  • Page 1 (For models manufactured since 11/21) COPYRIGHT © NOVEMBER, 2022 BY GRIZZLY INDUSTRIAL, INC. WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC. #CS22333 PRINTED IN USA V1.11.22...
  • 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.

  • Page 3: Table Of Contents

    SECTION 9: PARTS ........47 Power Connection........16 Test Run ............18 G0954 Pump ..........47 G0954 Tank & Motor ........49 SECTION 4: OPERATIONS ......21 G0955/G0956 Pump ........51 Operation Overview ........21 G0955 Tank & Motor ........53 Distribution System Design ......

  • Page 4: Introduction

    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 Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 5: Identification

    Oil Sight Glass Safety Tank Discharge Pressure Relief Pressure Line Tank Switch Valve Gauge Drain Valve Machine Foot (1 of 3) To reduce your risk of serious injury, read this entire manual BEFORE using machine. Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 6: Controls & Components

    If motor does not reset, allow motor to cool longer, then try again. Figure 3. Location of drain valve. G. Drain Valve: Drains built-up moisture from tank when ball valve is opened. Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 7 P. Safety Relief Valve: Pops open to release Discharge Line: Releases air from compres- tank pressure in the event that pressure sor pump and outlet line when tank pressure switch fails to stop motor at cut-out pressure. exceeds 125 PSI (cut-out pressure). Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 8: Machine Data Sheet

    Machine Data Sheet Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901 MODEL G0954, G0955, G0956, & G0957 STATIONARY AIR COMPRESSORS Model Number G0954 G0955 G0956 G0957 Product Dimensions Weight 305 lbs. 325 lbs.
  • Page 9 If normal safety pre- respect. Failure to do so could result in cautions are overlooked or ignored, seri- serious personal injury, damage to equip- ous personal injury may occur. ment, or poor work results. Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 10: Section 1: Safety

    Never operate under the influence of drugs or injury or blindness from flying particles. Everyday alcohol, when tired, or when distracted. eyeglasses are NOT approved safety glasses. Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 11 Make sure they are properly installed, you experience difficulties performing the intend- undamaged, and working correctly BEFORE ed operation, stop using the machine! Contact our operating machine. Technical Support at (570) 546-9663. Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 12: Additional Safety For Air Compressors

    Do not use compres- moving or servicing to prevent impact injuries, soft sor to inflate low-pressure objects that are likely to tissue injuries, and burns. burst (like children’s toys). -10- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 13: Section 2: Power Supply

    To reduce the risk of these hazards, avoid over- loading the machine during operation and make sure it is connected to a power supply circuit that meets the specified circuit requirements. -11- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 14 Conduit Conduit Extension Cords Ground Ground Since this machine must be permanently con- Figure 7. Typical setup of a permanently nected to the power supply, an extension cord connected machine. cannot be used. -12- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 15: Section 3: Setup

    Grizzly or the shipping agent. You MUST have the original pack- Inventory (Figure 8) aging to file a freight claim.

  • Page 16: Site Considerations

    Wall Min. 18" from Min. 18" from Obstructions Obstructions 26" 22" 30" 30" 31½" 32" G0954 G0955 G0956 G0957 Electrical Connection Figure 9. Minimum working clearances. -14- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 17: Lifting & Placing

    With another person to help steady machine, lift machine just enough to clear pallet and To lift and place machine: any floor obstacles, then place machine in its final position on shop floor. Place pallet near final machine mounting location. -15- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 18: Anchoring To Floor

    Tip: Install vibration pads between the lag screws and floor to further cut down on vibration and Figure 12. Location of pressure switch cover noise. Phillips head screw (G0956 shown). -16- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 19 (see Figure 14). G0957 Strain Relief Figure 14. Location of pressure switch strain relief (G0956 shown). Figure 15. Incoming power wires connected to LINE and ground terminals. Install pressure switch cover. -17- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 20: Test Run

    Figure 17. Disconnecting power from machine. Eye injury hazard! Always wear safety glasses when handling pressurized air system. -18- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 21 Figure 18. Location of pressure switch controls (G0956 shown). Shut-Off Valve Handle Pressure Switch Knob Figure 21. Shut-off valve handle in open position. Connect machine to power supply. Figure 19. Location of pressure switch controls (G0957 shown). -19- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 22 ON and verify motor sure reaches cut-out pressure (125 PSI operation. for G0954/G0955/G0956 and 175 PSI for G0957), then safety feature of check valve Motor should run smoothly and without is working correctly. Proceed to Step 11.

  • Page 23: Section 4: Operations

    Regardless of the content in this sec- Pulls safety valve ring to test valve and clear tion, Grizzly Industrial will not be held liable any obstructions. for accidents caused by lack of training.

  • Page 24: Distribution System Design

    The Plan to add a regulator for each supply line, and Model G0954/G0955/G0956/G0957 has a shut- determine if you will need to add a lubricator. off valve to stop the airflow when attaching tools Installing quick-connect couplers will allow you to or servicing individual components.

  • Page 25: Distribution System Components

    (see Only use a lubricator for tools that require it. Figure 25). Adding lubrication, for instance, to a paint sprayer can contaminate the tool and paint and prevent a proper application. -23- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 26: Choosing Air Hoses

    Air hammers, impact wrenches, impact hammers, and blow guns will probably require a larger compressor capable of 10-110 CFM. -24- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 27 Disconnect air tool from hose. system. Push coupler sleeve away from plug to release hose plug. Note: Air will escape when connection is bro- ken if air supply line is still pressurized. -25- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 28: Section 5: Accessories

    T32402—EDGE Khor G2 Safety Glasses, Tint serious personal injury or machine damage. T32404—EDGE Mazeno Safety Glasses, Clear To reduce this risk, only install accessories recommended for this machine by Grizzly. NOTICE Refer to our website or latest catalog for T32323 T32401 additional recommended accessories.
  • Page 29 " NPT air inlet. 12 CPM average air con- sumption. 90 PSI maximum pressure. Figure 36. D3279 Air Regulator with Gauge. Figure 34. T23086 7" Angle Sander. www.grizzly.com 1-800-523-4777 order online at or call -27- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 30: Section 6: Maintenance

    Quarterly (3 Month/300 Hour) Maintenance • Change compressor oil. Semi-Annual (6 Month) Maintenance • Check hoses/connections for leaks. If soapy water at suspected leak creates bubbles, air is escaping. Repair or replace affected parts. -28- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 31: Draining Tank

    Draining Tank Lubrication Some water may accumulate in the tank and air The oil level in the Model G0954/G0955/G0956/ delivery system depending on usage and humid- G0957 should be checked daily to prevent over- ity. Drain water from the tank, and any attached heating and damage to the compressor.

  • Page 32: Checking Air Filters

    Oil Fill Use safety relief valve to reduce tank pres- Plug sure to less than 10 PSI. G0954/G0957 Only: Remove wing nut shown in Figure 40 to remove filter cap and access Oil Drain filter. Plug Figure 39. Location of oil fill and oil drain plugs (G0956 shown).

  • Page 33: Checking/Adjusting Belt Tension

    Proceed to Step 4. G0954 Only: Turn filter assembly base coun- terclockwise to remove, then replace with new air filter assembly (refer to Part #16 on Page 47).

  • Page 34: Checking For Leaks

    Listen for sound of air to find possible leak at V-Belt compressor. — If you do not hear air escaping, and pres- Figure 44. Location of belt tension components. sure in tank does not change, there is no leak at compressor. -32- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 35 11. Spray suspected air leak with soap and water solution and look for air bubbles. — If bubbles do not form, repeat at different location. — If bubbles do form, refer to Fixing Leaks. -33- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 36: Machine Storage

    Cover machine with tarp or plastic sheet that will keep out dust and resist liquid or mois- ture. If machine will be stored in/near direct sunlight, use cover that will block UV rays. Figure 46. T23951 Blue Tarp 8' x 10'. -34- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 37: Section 7: Service

    10. Run capacitor at fault. 10. Test/repair/replace. 11. Check valve components are dirty/damaged. 11. Clean/replace check valve components. 12. Centrifugal switch/contact points at fault. 12. Adjust centrifugal switch/clean contact points. Replace either if at fault. -35- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 38 5. Air leak in tank or delivery pipes. 5. Check air tank, pipes, and all connections for leaks (Page 32). Do not attempt to repair leaking/damaged tank, only replace. 6. Check valve components are dirty/damaged. 6. Clean/replace check valve components. -36- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 39 7. Check air hoses and all connections for leaks (Page 32). 8. In-line regulator(s) at fault. 8. Inspect in-line regulator(s) for leaks. Replace if at fault. 9. Pressure gauge(s) at fault. 9. Replace pressure gauge(s). -37- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 40 7. Install cap screws with thread sealing tape. 8. Valve, plate, or ring is loose/damaged. 8. Tighten or replace valve/plate/ring. 9. Damaged crankcase seal. 9. Replace crankcase or seal. 10. Damaged crankshaft. 10. Repair/replace crankshaft. -38- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 41: Adjusting Cut-In/Cut-Out Settings

    (G0954/G0955/G0956 Only) ......1 To adjust cut-in/cut-out settings: Pressure Operate compressor and record cut-in and Switch cut-out pressures. Cover DISCONNECT MACHINE FROM POWER! Figure 48. Location of pressure switch cover flat head screw (G0957 shown). -39- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 42 — Turn screw half turn clockwise to increase both settings. — Turn screw half turn counterclockwise to decrease both settings. Install pressure switch cover. Cut-Out Adjustment Screw Figure 51. Location of cut-out only adjustment screw (G0956 shown). -40- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 43: Aligning Motor Pulley To Pump Flywheel

    175 PSI or lower. Guard Clip Rear Belt Guard (1 of 5) Figure 53. Location of rear belt guard and clips. Belt, pulley, and flywheel will be hot after operation. Allow them to cool before handling. -41- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 44 Step 7. — If measurements are not all within ⁄ " of each other, pulley and flywheel are not coplanar. Proceed to Step 5. Pump Flywheel Motor Pulley Figure 55. Distances to measure. -42- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 45: Section 8: Wiring

    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. -43- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 46: G0954 Wiring Diagram

    Capacitor 15uF 370V 189−227uF 220V Figure 57. Capacitor wiring. Figure 58. Motor wiring. Ground PRESSURE SWITCH DISCONNECT LEFOO LF10-4H SWITCH (as recommended ) Figure 59. Pressure switch wiring. READ ELECTRICAL SAFETY -44- Model G0954/55/56/57 (Mfd. Since 11/21) ON PAGE 43!

  • Page 47: G0955/G0956 Wiring Diagram

    CD60 45uF 450V 300uF 250V Figure 60. Capacitor wiring. Figure 61. Motor wiring. Ground PRESSURE SWITCH DISCONNECT LEFOO LF10-4H SWITCH (as recommended ) Figure 62. Pressure switch wiring. READ ELECTRICAL SAFETY -45- Model G0954/55/56/57 (Mfd. Since 11/21) ON PAGE 43!

  • Page 48: G0957 Wiring Diagram

    CD60 45uF 450V 300uF 250V Figure 63. Capacitor wiring. Figure 64. Motor wiring. PRESSURE SWITCH CONDOR MDR11-11EA DISCONNECT SWITCH (as recommended ) Ground Figure 65. Pressure switch wiring. READ ELECTRICAL SAFETY -46- Model G0954/55/56/57 (Mfd. Since 11/21) ON PAGE 43!

  • Page 49: Section 9: Parts

    SECTION 9: PARTS To order parts, contact MEGA by phone at (832) 415-6995 or email at CS@megacompressor.com. G0954 Pump -47- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 50 HEX BOLT M6-1 X 40 HEX BOLT M8-1.25 X 20 FLAT WASHER 6MM BREATHER CAP TEE FITTING 7/8" 2 X 3/4" COMPRESSOR PULLEY HEX NUT 3/4-16 FLAT WASHER 8MM FIN TUBE HEX BOLT M8-1.25 X 35 -48- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 51: G0954 Tank & Motor

    G0954 Tank & Motor -49- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 52 G0954 Tank & Motor Parts List REF DESCRIPTION REF DESCRIPTION TANK PUMP DISCHARGE LINE 12MM MOTOR 3HP 240V 1-PH DISCHARGE PIPE 6MM KEY 3/16 X 3/16 X 1-3/8 PRESSURE GAUGE 1/8" NPT MOTOR PULLEY FLANGE JOINT 1/2" NPT X 2"...

  • Page 53: G0955/G0956 Pump

    G0955/G0956 Pump -51- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 54 BEARING COVER GASKET CAP SCREW M8-1.25 X 30 TRIANGLE BEARING COVER 4MM FLAT WASHER 8MM HEX BOLT M6-1 X 20 OIL FILL PLUG M16-2 X 3 LOCK WASHER 6MM EXHAUST NUT 3/4"-27 CYLINDER GASKET (LOWER) -52- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 55: G0955 Tank & Motor

    G0955 Tank & Motor -53- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 56 HEX BOLT M8-1.25 X 35 PIPE NIPPLE 1/8" NPT X 1/8"L HEX BOLT M8-1.25 X 25 THREADED CHECK VALVE M18-2.5 X 1/2" NPT MOTOR CORD 10G 3W 12" ELBOW FITTING 90-DEG 1/8" NPT X 6MM -54- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 57: G0956 Tank & Motor

    G0956 Tank & Motor -55- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 58 HEX BOLT M8-1.25 X 35 PIPE NIPPLE 1/8" NPT X 1/8"L HEX BOLT M8-1.25 X 25 THREADED CHECK VALVE M18-2.5 X 1/2" NPT MOTOR CORD 10G 3W 12" ELBOW FITTING 90-DEG 1/8" NPT X 6MM -56- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 59: G0957 Pump

    G0957 Pump -57- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 60 TEE-FITTING 7/8" 2 X 3/4" PISTON RING SET (STAGE 1) FIN PIPE ASSEMBLY (STAGE 1) CYLINDER GASKET (LOWER) STRAIGHT PIPE CONNECTOR 3/4-16 CYLINDER (STAGE 1) FIN PIPE ASSEMBLY (STAGE 2) HEX BOLT M8-1.25 X 25 FLAT WASHER 6MM -58- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 61: G0957 Tank & Motor

    G0957 Tank & Motor -59- Model G0954/55/56/57 (Mfd. Since 11/21)
  • Page 62 PIPE NIPPLE 1/4" NPT X 1-1/2"L FENDER WASHER 6MM BELT GUARD FRONT BELT GUARD CLIP RUBBER BELT GUARD REAR SET SCREW 5/16-18 X 6 MOTOR 5HP 230V 1-PH HEX NUT M6-1 KEY 3/32 X 3/32 X 3/16 -60- Model G0954/55/56/57 (Mfd. Since 11/21)

  • Page 63: Labels & Cosmetics

    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. -61-...

This manual is also suitable for:

G0955G0956G0957

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