WWW.GRIZZLY.COM CONTRACTOR GRADE AIR COMPRESSORS MODEL G8297/G8298/G8299 INSTRUCTION MANUAL COPYRIGHT © 1999 BY GRIZZLY INDUSTRIAL, INC. 1821 VALENCIA ST., BELLINGHAM, WA 98227 WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
Table Of Contents 1. PAGE SAFETY SAFETY RULES FOR POWER TOOLS ..........................................................2-3 ADDITIONAL SAFETY INSTRUCTIONS FOR AIR COMPRESSORS................4 2. CIRCUIT REQUIREMENTS 110V OPERATION ..............................................................................................5 GROUNDING ......................................................................................................5 EXTENSION CORDS ....................................................
SECTION 1: SAFETY For Your Own Safety Read Instruction Manual Before Operating This Equipment The purpose of safety symbols is to attract your attention to possible hazardous conditions. This manual uses a series of symbols and signal words which are 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.
Safety Instructions For Power Tools 9. USE PROPER EXTENSION CORD. Make sure your extension cord is in good condition. Conductor size should be in accordance with the chart below. The amperage rating should be listed on the motor or tool nameplate. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Your extension cord must also contain a ground wire and plug pin. Always repair or replace extension cords if they become damaged.
Additional Safety Instructions For Air Compressors 1. Operate the compressor in a well-ventilated area free of acids, vapor, explosive gases and flammable or unstable materials. 2. Use compressor only with air, never use with any other type of gas. 3. Never aim the air nozzle directly at yourself or others. The air stream can be quite forceful and can damage skin. 5. Do not use compressed air for filling breathing or diving apparatus.
SECTION 2: CIRCUIT REQUIREMENTS 110V Operation Grounding This family of air compressors is wired for 110/120V, single phase operation only. The chart below shows the maximum amperage draw and recommended fusing level for each of the machines. In the event of an electrical short, grounding reduces the risk of electric shock by providing a path of least resistance to disperse electric current. These machines are equipped with power cords having an equipment-grounding conductor. See Figure 1.
SECTION 3: INTRODUCTION Commentary Most importantly, we stand behind our machines. If you have any service questions or parts requests, please call or write us at the location listed below. We are proud to offer the Grizzly Models G8297/8298/8299 Contractor Grade Air Compressors. These compressors are part of the growing Grizzly family of heavy-duty machinery for the contractor and professional user.
Unpacking This air compressor is shipped from the manufacturer in a carefully packed carton. If you discover the machine is damaged after you’ve signed for delivery, and the truck and driver are gone, you will need to file a freight claim with the carrier. Save the containers and all packing materials for possible inspection by the carrier or its agent. Without the packing materials, filing a freight claim can be difficult.
NOTICE Before using your Grizzly Air Compressor, follow these steps before the first use: 1. Remove all packing materials and the protective plastic plugs from the cylinder head and oil plug. Do not remove the yellow cap underneath the black plastic cover of the pressure switch housing. The machine should never be run without a full oil reservoir. The oil provides lubrication to the cylinder rings which deliver the compressed air.
SECTION 4: OPERATIONS General The pump produces compressed air which goes into the air tanks through the delivery pipe and the check valve. When the air pressure arrives at the factory pre-set level of 135 PSI, the pressure switch shuts off the electrical current to the axial electric pump. At the time it shuts off, it discharges the air held in the pump cylinder to the delivery pipe. This allows the pump to be depressurized so it can easily restart.
Starting Pressure Regulator Make sure the compressor switch is in the OFF position (the red button on top of the control box should be in the fully depressed position, see Figure 5) before connecting to the power supply. Close the drain cock on the tanks. Pull the switch to the ON position. After the compressor has fully pressurized the tanks, turn the red knob on the pressure regulator (See Figure 6) to set the pressure needed for the air tool you will be using.
Connecting Tools Notes Make sure the compressor model you use has sufficient cubic feet per minute (CFM) output for the air tool you plan to connect. Most air tools will have an air requirement stated in terms of a specific CFM at a specific pressure (PSI). Most common is a rating at 90 PSI. Consult the chart below to determine the output of your compressor model. Model HP CFM @ 90 PSI G8297 2.0 4.2 Tank Cap. 4.25 gal G8298 2.5 5.8 4.25 gal G8299 4.5 10 9.
SECTION 5: MAINTENANCE Each Use Regular periodic maintenance on your Air Compressor will ensure its optimum performance. Make a habit of inspecting your compressor each time you use it. Check the following items: 1. Check oil level. See Figure 7. Fig 7. Checking oil level with dipstick. 2. Drain tanks of any condensation by opening the drain cocks on the bottom of both tanks. See Figure 8. Depending upon the amount of use and the weather conditions, a certain amount of condensed water may be released.
After First 50 Hours Every 300 Hours After the first 50 working hours, or 30 days, whichever comes first, replace the oil in the motor with compressor oil (use ISO 100 or SAE 30W viscosity, non-detergent type). After every 300 hours or 3 months of regular operation, perform the following maintenance items: 1. Change compressor motor oil. Also after this initial operation period, check to make sure that all the fittings are tight.
Pressure Limit Adjustment The compressor is delivered with pressure switch settings which turn the compressor pump off when it reaches a tank pressure of 135 PSI, and turn it back on when it reaches 105 PSI. Normally these settings should not require any adjustment. In the event it becomes necessary to change, first make certain the compressor is disconnected from the power source. Then remove the black plastic cover below the On/Off switch.
SECTION 6: CLOSURE The following pages contain general machine data, parts diagrams/lists, troubleshooting guide and Warranty/Return information for your Model G8297/8298/8299 Air Compressor. If you need parts or help in assembling your machine, or if you need operational information, we encourage you to call our Service Department. Our trained service technicians will be glad to help you.
PARTS LIST G8297 AIR COMPRESSOR Ref. # Part # Description Ref. # Part # Description 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 023A 023B 024 025 026 027 028 Guard Screw M4.2 x 13 Motor Flange Fan 155mm Dia. Screw M6 x 135 Bearing 17 x 40 x 12 Rotor Bearing 25 x 52 x 15 Stator Compressor Casing Screw M8 x 35 Screw M8 x 25 Eccentric Connecting Rod Snap Ring 15mm Gasket Screw M4.
G8297/G8298/G8299 Air Compressors -17-
PARTS LIST G8298 AIR COMPRESSOR Ref. # Part # Description Ref. # Part # Description 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 023A 023B 024 025 026 027 028 029 Guard Screw M4.2 x 13 Motor Flange Fan 155mm Dia. Screw M6 x 135 Bearing 17 x 40 x 12 Rotor Bearing 25 x 52 x 15 Stator Compressor Casing Screw M8 x 35 Screw M8 x 25 Eccentric Connecting Rod Snap Ring 15mm Gasket Screw M4.
G8297/G8298/G8299 Air Compressors -19-
PARTS LIST G8299 AIR COMPRESSOR The G8299 utilizes the 2 HP motor from the G8297 and the 2.5 HP motor from the G8298. The part numbers are as referenced for those components on the previous pages. -20- Ref.
TROUBLESHOOTING SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION 1. Check power line for proper voltage. Pump Motor Will Not 1. Low voltage. 2. Open circuit in motor, switch or 2. Inspect all lead connections on motor, switch and Start cord for loose or open connections. cord. 3. Motor will not start if tank pressure is too high. 3. Tank already pressurized. 4. Thermal overload switch has tripped, wait for motor 4. Thermal overload switch. to cool, then reset switch by pressing red button.
WARRANTY AND 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.
WARRANTY CARD Name ____________________________________________________________________________________ Street ____________________________________________________________________________________ City ______________________________________________________________State________Zip_________ Phone Number_______________________E-Mail_______________________FAX________________________ MODEL # ______________________________Order #______________________________________________ The following information is given on a
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