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manual abstract
To replace a piston: Always disconnect air from nailer whenever servicing! During maintenance, a nailer connected to air may fire accidentally, causing serious personal injury! 1. Disconnect the nailer from the air supply! 2. Remove all nails from the magazine cartridge. 3. Remove the 4 cap screws from the nailer exhaust cap. 4. Remove the exhaust cap as shown in Figure 7. 5. The top of the piston should now be visible inside the cylinder, which is housed in the head of the nailer. 6. Open the magazine. 7. Watch the discharge area and push the top of the piston with your finger. You will see the piston shaft slide down the discharge area. Figure 7. Removing nailer exhaust cap. 8. With a long flathead screwdriver or similarly shaped tool, push the piston shaft back inside the nailer until you can grip the piston head and remove it from the cylinder. (Be careful not to scratch the discharge area when pushing the piston shaft with the screwdriver.) 9. Place a new O-ring on the new piston and apply a thin film of the nailer lubricating oil on the O-ring. 10. Insert the new piston in the cylinder. Make sure that the grooves on the piston shaft line up with those on the guide at the bottom of the cylinder. The new piston should easily slide into the cylinder. Do not force the piston into the cylinder! If the piston is not easily inserted, double-check the alignment of the piston shaft with the grooves on the guide. 11. After the piston is inserted correctly, close the magazine. Replace the rear cap assembly and tighten the 4 cap screws. 12. For more assistance, or to install a complete O-ring set, refer to the appropriate breakdown diagram in the back of this manual. -10- G6050 Round Head Framing Nailer Kit G6050 Round Head Framing Nailer Kit -11- G6050 PART BREAKDOWN 25 12 14 13 11 10 9 8 59 26 6 5A 4 2A 7A 89 1A 24 30A 29 28A 82 80A 39 73 83A 74A 82 68A 28A 88 27 31A 35A 65 85 67A 85 61A 66 39 92 90 39 23 22 19 21A 20 16B 15-2 15A 36 39 69 53A 52 51 50 49 48 47 46 45 42 43 44 41 37A 40 95 84 30A 71A 5656 62 63 64 21-1 12-1 58 60A 78 77 76 33 39 34 32 38A 57 REF PART # DESCRIPTION REF PART # DESCRIPTION 01A P6048007A BUTTON HD CAP SCR 02A P6050002A EXHAUST COVER 04 P6050004 PU WASHER 05A P6050005A CAP SCREW + SW 06 P6050006 CAP 07A P6044077 FLAT WASHER 08 P6050008 SPACER 09 P6050009 PISTON STOPPER 10 P6050010 SPRING 11 P6050011 O-RING 12 P6050012 PISTON HEAD VALVE 12-1 P6050012-1 SPACER 13 P6050013 O-RING 14 P6050014 SEAL 15-2 P6050015-2 O-RING 15A P6050015A OIL-LESS RING ASSY 16B P6050016B PISTON ASSEMBLY 19 P6050019 O-RING 20 P6050020 O-RING 21A P6050021A CYLINDER 21-1 P6050021-1 O-RING 22 P6050022 UPPER BUMPER 23 P6050023 GASKET 24 P6050024 BODY 25 P6050025 BOTTOM BUMPER 26 P6050026 O-RING 27 P6050027 NOSE 28A P6050028A CAP SCREW 29A P6050029A STEPPED PIN 30A P6048030A PU RING 31A P6050031A BUTTON HD CAP SCR 32 P6050032 SAFETY LEVER 33 P6050033 SPRING 34 P6050034 SAFETY LEVER 35A P6050035A CAP SCREW 36 P6050036 SPRING 37A P6050037A SAFETY LEVER ASSY 38A P6050038A SPRING GUIDE 39 P6050039 LOCK NUT 40 P6050040 RUBBER PAD 41 P6050041 O-RING 42 P6050042 PLUNGER 43 P6050043 VALVE 44 P6050044 O-RING 45 P6048045 O-RING 46 P6050046 O-RING 47 P6044047 VALVE PLUNGER 48 P6050048 O-RING 49 P6048049 SPRING 50 P6050050 PLUNGER 51 P6050051 O-RING 52 P6050052 PLUNGER CAP 53 P6050053 TRIGGER ASSY 56 P6050056 PUSHER 57 P6050057 STOPPER 58 P6050058 SPRING 59 P6050059 GASKET 60A P6050060A SET PIN 61A P6050061A CAP SCREW 62 P6050078 SPIRAL SPRING 63 P6050063 ROLLER 64 P6050064 BALL PIN 65 P6050065 MAGAZINE 66 P6050066 NAIL GUIDE LINER 67A P6050067A CAP SCREW 68A P6050068A DEBRIS SHIELD 69 P6050069 FLAT WASHER 71A P6050071A INSERT 73 P6050073 BRACKET 74A P6050074A LOCK NUT 76 P6050076 SET PLATE 77 P6050077 SET PLATE 78 P6050078 BUTTON HD CAP SCR 80A P6050080A AIR PLUG 82 P6050082 FLAT WASHER 83A P6050083A GASKET WASHER 84 P6050084 STEPPED PIN 85 P6050085 SPACER 88 P6050088 SPRING WASHER 90 P6050090 BRACKET 92A P6044077 FLAT WASHER 93 P6050093 RUBBER PAD -12-G6050 Round Head Framing Nailer Kit TROUBLESHOOTING PROBLEM CAUSE ACTION Air leaking at trigger valve area. 1. O-rings in trigger valve housing are damaged. 1. O-rings must be replaced & operation of safety yoke must be checked. Air leaking between housing and hose. 1. Loose screws in housing. 2. Damaged O-ring. 3. Loose air fitting. 1. Tighten screws. 2. Replace O-ring. 3. Tighten air fitting. Air leaking between housing and cap assembly. 1. Damaged seal. 1. Replace damaged seals. Tool skips nails while discharging. 1. Air leaks. 2. Dirt in nose. 3. Dirt or damage prevents nails from moving freely in magazine. 4. Inadequate air flow to tool. 5. Worn O-ring on piston or lack of lubrication. 6. Damaged O-rings on trigger valve. 7. Worn bumper. 8. Cap seal leaking. 1. Tighten screws and fittings. 2. Clean nose. 3. Clean magazine and inspect/repair damage. 4. Check fitting, hose, compressor & air pressure. 5. Replace piston O-ring. Lubricate. 6. Replace trigger valve O- rings. 7. ...