Craftsman 68496 Operation Manual - Page 4

Thetoolisequippewdithapush-buttsown itchthatcan changteheoperatinmgodefromrapid-firtoesinglefire. Whentheredstopbutton(Fig5. ,No.47)is pusheidnfrom the"CRAFTSMAsNid"et,hetoolwillfireonefasteneornly. Tofirethenexftastenebr,oththetrigge(rFig5. ,No3. 3) andthecontactrtip(Fig5. ,No6. 3)musbt ereleased. OPERATINGPRESSURE o Use only enough air pressure to perform the operation. Air pressure in excess of that which is required will make the operation inefficient and may cause premature wear or damage to the tool. o Determine minimum air pressure required by driving some test fasteners into the workpiece. Set air pressure so that test fasteners are driven down flush with the work surface. Fasteners driven too deep may damage workpiece. EXHAUST DEFLECTOR Refer to Figures 4 & 5 (pages 4 and 6). o Exhaust deflector can be positioned to point in any direction (full 360 ° movement). Reposition deflector (Fig. 5, No. 2) by grasping firmly and rotating to the desired position. Figure 4 - Exhaust Deflector Adjustment Refer to Figure 5 (page 6). MAGAZINE AND PISTON-RAM • Keep magazine and nose clean and free of any dirt, lint or abrasive particles. The tip of the ram (Fig. 5, No. 18) can become dented or rounded over time. • Square off the tip of the ram with a clean, fine hand file to extend the life of the ram and tool. Fastener firing will be more consistent if the ram tip is kept clean and square. SAFETY MECHANISM Inspect contact trip safety mechanism daily for proper operation. Do not operate tool if mechanism is not operating properly. With the red push-button switch in the rapid-fire mode, perform the following procedures to test safety mechanism: • Leave trigger untouched while pushing contact trip into workpiece. Tool must not fire. • Pull trigger while contact trip is clear of work and pointed away from operator and others. Tool must not fire. • Depress and hold trigger. Push contact trip against work where fastener is needed. The tool should drive only one fastener each time the contact trip is pushed against workpiece. If contact trip mechanism does not operate properly, repair tool immediately through Sears Service Center. Replace any damaged or missing parts. Use the parts list to order parts. REBUILD KITS Rebuild kits are available as spare parts, (see page 7). Tools should be rebuilt if tool fails to operate properly after extended use. See troubleshooting to determine required replacement parts. Disconnect tool from air supply before attempting repair or adjustment. NOTE: When replacing O-rings or cylinder, lubricate with air tool oil before assembly. 4