MODEL T21888 2.5 HP, 6.3 GALLON COMPRESSOR INSTRUCTION MANUAL Copyright © FEBRUARY, 2010 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.
This manual provides critical safety instructions on the proper setup, operation, maintenance and service of this machine/equipment. Failure to read, understand and follow the instructions given in this manual may result in serious personal injury, including amputation, electrocution or death. The owner of this machine/equipment is solely responsible for its safe use.
Table of Contents INTRODUCTION......................................................................................2 Foreword............................................................................................2 Specifications.....................................................................................2 Additional Safety Instructions for Air Compressors...........................5 SECTION 1: CIRCUIT REQUIREMENTS...............................................6 110V Operation..................
INTRODUCTION Foreword Specifications The specifications, details, and photographs in this manual represent the Model T21888 as supplied when the manual was prepared. However, owing to Grizzly’s policy of continuous improvement, changes may be made at any time with no obligation on the part of Grizzly. Motor HP...........................................21⁄2 HP Motor Voltage/Cycle...................110V/60Hz Motor Amperage.................................... 15A Power Cord..................................
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.
7. AVOID ENTANGLEMENTS. Do not wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry, which may get caught in moving parts, when operating this tool. Wear a protective hair covering to contain long hair. 8. USE CORRECT AIR PRESSURE. Exceeding the maximum PSI rating of this tool may cause unpredictable operation or bursting. 9. DISCONNECT AIR PRESSURE before servicing, changing accessories, or moving to another location. Never leave this tool unattended when connected to air. 10.
Additional Safety Instructions for Air Compressors 1. TANK SAFETY. Metal from exploding air tanks can kill or severely maim you or bystanders. Drain the tank after each use to prevent corrosion and possible tank rupture. Inspect the tank for unsafe conditions such as rust, pin holes and cracks. NEVER weld or drill new ports in an air tank. NEVER adjust safety valve or pressure switch to allow the compressor to build higher PSI than rated.
SECTION 1: CIRCUIT REQUIREMENTS 110V Operation Serious personal injury could occur if you connect the machine to the power source before you have completed the set up process. DO NOT connect the machine to the power source until instructed to do so. Electrocution or fire could result if this machine is not grounded correctly or if your electrical configuration does not comply with local and state codes.
Grounding In the event of an electrical short, grounding reduces the risk of electric shock. The grounding wire in the power cord must be properly connected to the grounding prong on the plug; likewise, the outlet must be properly installed and grounded. All electrical connections must be made in accordance with local codes and ordinances. Extension Cords To reach the work area, use additional air hoses instead of extension cords.
SECTION 2: SET UP Unpacking Your air compressor left our warehouse carefully packed. If you discover the air compressor is damaged after you have signed for delivery, please immediately call Customer Service at (570) 546-9663 for advice. 3. Remove the oil fill cap (Figure 3) on top of the crankcase and add air compressor oil into the hole. When full, the oil level should be in the center of the sight glass.
Test Run & Break In To test run and break in the air compressor: 1. Put on safety goggles, and place the compressor on a solid, level surface. 2. Make sure the ON/OFF lever is in the up or the OFF position, as shown in Figure 4. 6. Observe the tank pressure gauge (Figure 6) to verify that the tank pressure climbs to approximately 105-110 PSI. When the tank reaches this pressure, the motor will automatically shut OFF.
SECTION 3: OPERATIONS Pressure Regulator Use Read the manual before operation. Become familiar with this tool, its safety instructions, and its operation before beginning any work. Serious personal injury may result if safety or operational information is not understood or followed. The tank pressure is displayed on the pressure gauge that is closest to the pressure relief valve shown in Figure 6, and the air to be delivered to the tool is displayed on the pressure gauge adjacent to the ON/OFF lever.
Operation To use your air compressor: 1. Put on safety glasses. 2. Make sure the compressor lever is in the down or the OFF position, as shown in Figure 9. Leaving a compressor while it is plugged in can cause fire. If a leak develops, the compressor may run continuously until it overheats and catches fire. When not in use, always disconnect the compressor from power, and drain the air tank.
Accessories G6261—Campbell Hausfeld™ Water Filter Filtering out water and oil before it reaches the spray gun is critical for high quality spraying results. This filter is rated at 150 PSI maximum air pressure, and has a 1⁄4" NPT air inlet. Figure 11. G6261 Campbell Hausfeld™ water filter. G8114— 3 ⁄ 8" x 25 Ft. Air Hose G8115— 3 ⁄ 8" x 50 Ft. Air Hose G8116— 3 ⁄ 8" x 100 Ft.
SECTION 4: MAINTENANCE Schedule Weekly If used daily, perform the following compressor checks each week, otherwise check these items once a month: 1. Remove and blow out the air filter (Figure 15) from the inside out, then re-install. Operating this equipment has the potential to cause eye injury and hearing loss. Always wear eye and ear protection when operating an air compressor. Be certain the safety protection you wear meet the appropriate standards of the American National Standards Institute (ANSI).
Quarterly After every approximately 300 run-time hours, or 3 months, perform the following maintenance: 1. Change the oil in the air compressor pump as described in Changing Oil on Page 18. 2. Check for air leaks and correct as needed. Pressure Relief Valve Test The pressure relief valve prevents the air tank from exploding should the compressor keep building air pressure and not shut off automatically. The safety valve is preset at the factory and must not be tampered with.
SECTION 5: SERVICE This section is provided for your convenience—it is not a substitute for the Grizzly Service Department. If you need help troubleshooting, replacing parts, or you are unsure of how to perform the procedures in this section, then feel free to call our Technical Support at (570) 546-9663. Troubleshooting Symptom Possible Cause Possible Solution Motor will not start. 1. Tank already pressurized. 1. Motor will not start if tank is fully pressurized. 2.
Symptom Possible Cause Possible Solution Air leaks from pressure switch. 1. Faulty check valve. 1. Repair the check valve (Page 18). 2. Replace pressure switch. 2. Faulty pressure switch. Low pressure at the tank, or tank pressure drops after compressor is turned OFF. 1. Air leaks in tanks or delivery pipes. 2. Drain valve open. 3. Air filter clogged. 4. Pressure switch turns the motor OFF too soon. 5. Leaking check valve. 6. Pressure relief valve releasing below 110 PSI. 7. Gaskets leaking. 8.
Symptom Possible Cause Possible Solution Air is dirty or has excessive moisture. 1. Tank is not drained. 1. Open drain valve and make certain all the water is drained out. 2. Remove delivery pipes, clean out and replace. 2. Delivery pipes are dirty. Air tools have oily discharge. 1. Compressor tank need draining. 2. Compressor crankcase is over full with oil. 3. In-line oiler is out of adjustment (if used). 4. In-line filter is damaged or missing (if used). 5.
Changing Oil Change the oil in the air compressor pump after the initial 50 hours, or 30 days of use; and every 300 hours, or 3 months after the first oil change. Use any quality air compressor oil. To change the oil: 1. DISCONNECT THE COMPRESSOR FROM POWER, AND DRAIN ALL AIR FROM THE TANK. 2. Place a container to catch the oil under the oil sight glass. Hot crankcase oil can scald your hands or fingers. Before draining the oil, allow the compressor to cool 15 minutes before removing the drain plug. 5.
3. Inspect the seal ring and diaphragm (Figure 20) for damage and dirt. Diaphragm Fixing Air Leaks To find air leaks: 1. Allow the compressor to build air pressure to the rated pressure. 2. DISCONNECT THE COMPRESSOR FROM POWER. 3. Listen for the sound of air to find fittings that may be leaking. 4. Spray the suspected air leak with a soap and water solution. If you see air bubbles, you have found your leak. Seal Ring Figure 20. Check valve assembly. 4.
Pressure Switch The pressure switch ensures the compressor will turn ON (cut-in) when the tank pressure drops to approximately to 85 PSI. The compressor will shut OFF (cut-out) when the air tank reaches maximum of 115 PSI. Should the cut-out switch fail, the pressure relief valve will open at 130 PSI, preventing tank explosion. NOTICE The cut-in and cut-out settings have been factory set at the proper PSI range.
Storage When storing your air compressor, follow these guidelines: 1. Push the compressor ON/OFF lever down to the OFF position. 2. Disconnect power. the compressor Water will condense in the air compressor tank when the compressor is in operation. Water left in the tank can cause the tank to weaken and corrode, increasing the risk of tank rupture. from 3. Unplug the compressor. 4. Run the air tool to relieve the air pressure in the hose, then remove the air hose and the tool. 5.
Parts Breakdown 35 31 30 29 34 10 28 25 27 11 26 24 23 22 21 20 19 12 17 16 15 14 13 8 7 41 42 40 37 38 39 46 43 56 18 63 62 51 63 58 53 9 45 36 33 32 6 4 5 3 2 1 52 54 61 55 59 60 86 87 64 82 65 87 86 66 44 88 81 67 74 79 80 -22- 89 73 72 71 76 70 69 77 78 68 83 84 Model T21888 (Mfg.
Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 CRANKCASE CRANKSHAFT CONNECTING ROD CONNECTING ROD BOLT COVER GASKET CRANKCASE COVER GASKET SIGHT GLASS PHLP HD SCR M4-.7 X 12 THERMAL OVERLOAD 15A LOCK WASHER 4MM VENTED FILL CAP WRIST PIN RETAINER WRIST PIN PISTON WIPER RING COMPRESSION RING SET CYLINDER GASKET CYLINDER BODY DOWEL PIN 2.94 X 6.
WARRANTY Warranty 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.
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