Évaluations - 4, GPA: 4.5
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Facilité d'utilisation
The following schedule is geared toward a consumer whose compressor is used in a normal working environment on a daily basis. If necessary, the schedule should be modified to suit the conditions under which your compressor is used. The modifications will depend upon the hours of operation and the working environment. Air compressors used in an extremely dirty and/or hostile environment will require a greater frequency of all maintenance checks. Oil Changing For changing the pump oil, be sure to do the following: 1. Turn the unit off and unplug the power cord from the receptacle. 2. Allow the compressor time to cool if it has been in operation. 3. Open the drain valve to bleed all air from the tank. 4. Close the drain valve. 5. Remove the oil fill cap on the pump. 6. Remove the sight glass with a box end wrench or socket. Drain the oil into a suitable container and dispose of properly. The compressor may need to be tipped slightly towards the drain hole to allow all of the oil to drain. The air compressor should be turned off and unplugged from the power source before any maintenance is performed as well as the air bled from the tank and the unit allowed time to cool. Personal injuries could occur from moving parts, electrical sources, compressed air or hot surfaces. 7. Reattach the sight glass. Note: Torque the sight glass 10-12 inch Ibs. when re-assembling. Be sure the gasket is between the sight glass and the pump crankcase. 8. Refill the compressor pump with an air compressor oil such as SAE-30 non-detergent (API CG/CD Heavy Duty) oil at slow intervals until the oil reaches the center of the red circle in the sight glass. Use a SAE-10 during extreme winter conditions. Storage For storing the air compressor, be sure to do the following: 1. Turn the unit off and unplug the power cord from the 4. Open the drain valve to bleed all air from the tank. receptacle. 5. Close the drain valve. 2. Remove all air hoses, accessories, and air tools from 6. Store the air compressor in a clean and dry location. the air compressor. 3. Perform the daily maintenance schedule. 8 Troubleshooting Guide The air compressor should be turned off and unplugged from the power source before any maintenance is performed as well as the air bled from the tank and the unit allowed time to cool, Personal injuries could occur from moving parts, electrical sources, compressed air, or hot surfaces. PROBLEM POSSIBLE CORRECTION Air leaks at the check valve A defective check valve results in a constant air leak at the pressure release valve or at the pressure relief valve, i when there is pressure in the tank and the compressor is shut off. Drain the tank, then remove and clean or replace the check valve. Air leaks between head and Be sure of proper torque on head bolts. If leak remains, contact a service cylinder, technician. Air leak from safety valve. Operate the safety valve manually by pulling on the ring. If the valve continues to leak when in the closed position, it should be replaced. Pressure reading on the If there is an excessive amount of pressure drop when the accessory is used, regulated pressure gauge replace the regulator. drops when an accessory is used. NOTE: Adjust the regulated pressure under flow conditions (while accessory is being used). It is normal for the gauge to show minimal pressure loss during initial use of the tool. Excessive tank pressure. Move the Auto-On/Off lever to the Off position. If the unit doesn't shut off, unplug it from the power source and contact a service technician. Motor will not start. Make sure power cord is plugged in and the switch is on. Inspect for the proper size fuse in your circuit box. If the fuse was tripped, reset it and restart the unit. If -rcpc_tcd tripping occurs, rep!ace the check va!v. or contact a serv!ce technician. Excessive moisture in the Remove the water in the tank by draining after each use. High humidity discharge air. environments will cause excessive condensation. Utilize water filters on your air line. NOTE: Water condensation is not caused by compressor malfunction. Be sure the compressor's air output is greater than your tool's air consumption rate. Air leaks from the tank body Never drill into, weld or otherwise modify the air tank or it will weaken. The tank can or tank welds. rupture or explode. Compressor cannot be repaired. Discontinue use of the air compressor. Craftsman Air Compressor Model 921.1521 00 Reference Part DescriptionNumber Number 1 *E100084 HeadBolt 2 *E100084 Washer 3 CylinderHead 4 E100085 ExhaustElbow 5 *E100086 Gasket 6 ValvePlate 7 *E100086 ValveReed 8 *E100086 GasketInner 9 Piston 10 *E100086 GasketBottom 11 Cylinder 12 Bolt 13 Washer 14 *E100086 GasketCrankcase 15 RingCompression 16 RingScraper 17 RingOil 18 PistonPin 19 Clip Pin 20 RodConnecting 21 Eccentric 22 ScrewEccentric 23 E100087 OilFillCap 24 Bolt 25 *E100088 OilSightGauge 26 *E100088 Seal,Oil SightGauge 28 O-Ring 29 CoverMotor 30 Bearing 31 *E100089 Bolt 31a *E100089 Bolt 32 *E10...