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TECHNICAL DATA

AND

SERVICE MANUAL

STAPLER

N 5024A

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

LIST No. E014

Sep. 2003

N

MODEL

N 5024A

Hitachi

Power Tools

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Summary of Contents for N 5024A

Page 1: ...TECHNICAL DATA AND SERVICE MANUAL STAPLER N 5024A SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST No E014 Sep 2003 N MODEL N 5024A Hitachi Power Tools ...

Page 2: ...ICE MANUAL a symbol s is are used in the place of company name s and model name s of our competitor s The symbol s utilized here is are as follows Symbols Utilized Competitors Company Name Model Name SENCO PW 2 R PASLODE 3200 W16 Y BOSTITCH 450S2 P ...

Page 3: ...N PRINCIPLE 8 8 1 Mechanism 8 8 2 Operation Principle 9 9 TROUBLESHOOTING GUIDE 13 9 1 Troubleshooting and Correction 13 9 2 Possible Causes and Correction of Air Leakage 15 10 DISASSEMBLY AND REASSEMBLY 17 10 1 General Precautions in Disassembly and Reassembly 17 10 2 Disassembly and Reassembly of the Output Section 18 10 3 Disassembly and Reassembly of the Control Valve Section 22 10 4 Disassemb...

Page 4: ...nd P thanks to the adoption of the plastic magazine The staple shoulder sliding portion of the magazine is wear resistant 2 The driving speed is faster than our competitors thanks to the adoption of the 2 valve cylinder drive system that is well reputed in the current Models NV 45AB2 N 5008AC and so on 3 The handle is equipped with a cylindrical grip rubber for comfortable fitting and durability 4...

Page 5: ...ion Air inlet Packaging dimensions Length x Height x Width Packaging 436 mm x 96 mm x 309 mm 17 5 32 x 3 25 32 x 12 5 32 Hex bar wrench for M5 screw Code No 944459 Safety glasses Code No 875769 Sequential trip mechanism kit Single shot Code No 876762 Pneumatic tool lubricant 1 oz oil feeder Code No 877153 Pneumatic tool lubricant 4 oz oil feeder Code No 874042 Pneumatic tool lubricant 1 oz oil fee...

Page 6: ...ated by adhesive Applicable staple dimensions are shown below CAUTION Ensure that staples are as specified in Fig 1 Other gauge staples and other crown width staples will cause clogging of staples and subsequent damage to the stapler Minimum Staple gauge 16 1 crown Fig 1 Dimensions of staple Maximum ...

Page 7: ...sed as reference data because those values vary depending on the type moisture content and grain of wood Fig 2 Required stapling energy and stapler output energy 5 4 Optional Accessories Sequential trip mechanism kit Single shot Code No 876762 A sequential trip mechanism kit is provided as an optional accessory for the Model N 5024A By using this optional accessory a staple is driven by pressing t...

Page 8: ...y Max 5 8 5 kgf cm 2 70 120 psi 365 mm x 250 mm x 85 mm 14 3 8 x 9 13 16 x 3 11 32 N 5024A 1 05 ltr cycle 037 ft 3 cycle 150 Single touch operation by hand 2 1 kgf 4 7 lbs 5 6 7 7 kgf cm 2 80 110 psi 318 mm x 241 mm x 69 mm 12 1 2 x 9 1 2 x 2 3 4 0 95 ltr cycle 034 ft 3 cycle 140 2 5 kgf 5 4 lbs R With tool Applicable staples 16 gauge wire Length Inside width 25 mm to 50 mm 1 to 2 23 3 mm 917 Outs...

Page 9: ...ched together with the Handling Instructions for details 7 1 Handling Instructions Although every effort is made in each step of design manufacture and inspection to provide protection against safety hazards the dangers inherent in the use of any pneumatic tool cannot be completely eliminated Accordingly general precautions and suggestions for use of pneumatic tools and specific precautions and su...

Page 10: ...sted in the Handling Instructions provided with each unit While there are no specific safety regulations there are related items in various general safety regulations with which the salespersons should be familiar in order to properly advise the customer Please check your national and or local regulations for applicable items Some applicable items are outlined below The U S A OSHA 1926 102 Eye and...

Page 11: ...esigned Driving section All the parts have been newly designed for driving staples If staples are clogged in this section they can be easily released simply by pulling the lock lever by hand Magazine section All the parts have been newly designed for driving staples The magazine cover is opened by pulling the staple feeder backward for easy loading or replacement of staples The Bold numbers in the...

Page 12: ...e compressed air source air hose is connected to the nailer Air pressure is applied to the lower surface of the flanges located at the center portion of the Cylinder 6 forcing the cylinder upward The compressed air is thereby blocked from the upper end of the cylinder and no pressure is applied to the piston The Accumulator 1 fills with compressed air The trigger and pushing lever are not operated...

Page 13: ... lever are operated simultaneously NOTE If either the trigger or pushing lever is operated individually compressed air will not enter the valve air passage and the nailer will not function When the trigger and pushing lever are operated simultaneously the exhaust vents are closed Compressed air is applied to the upper side of the Exhaust Valve 2 forcing it downward and closing the Exhaust Vent 3 A...

Page 14: ...n the position illustrated The lower surface of the Piston 4 contacts the Piston Bumper 9 and prevents air leakage If the upper surface of the Piston Bumper 9 is damaged some air will leak As there is no o ring installed here a very small amount of air will leak from the slight clearance between the components If the operator s grip is loosened air will leak ...

Page 15: ...ny remaining air pressure at the lower end of the piston is discharged through the clearance between the Piston Bumper 9 and the Driver Blade 7 When the air pressure at the upper side of the piston lowers the air pressure within the Return Air Chamber 8 pushes the piston upward NOTE If the clearance were larger the piston would not return if it were smaller driving force would be decreased When th...

Page 16: ...emove the abnormal staples and load the magazine with normal staples Ribbon spring abnormal fatigued damaged Staple rail width too wide Magazine cover abnormal deformed damaged Adhesive fragments and wood chips are on the magazine staple feeder or staple rail Replace the defective part Replace the defective part Replace the defective part Cylinder s internal surface abnormal deposites of dirt worn...

Page 17: ...n rough Unspecified staples used Problem Possible cause most common cause Inspection method Remedy 2 Staples bent while being driven See item 1 See item 1 Check if the driver blade tip is abnormally worn Check if a staple is bent even when driven into soft wood See item 1 See item 1 Replace the part Unusable because the tool is not designed for such usage 3 The staple is driven into the material b...

Page 18: ... 15 9 2 Possible Causes and Correction of Air Leakage Air leakage repair location ...

Page 19: ...d Bolt M5 x 16 42 Broken Gasket D 40 Defective seal surface of the Body Ass y 21 or Cap 41 Defective Exhaust Valve 7 worn deformed or broken Exhaust vent Air leak part Cause When trigger valve safety valve are OFF When trigger valve safety valve are ON Inspection priorities In the table below possible causes of air leakage and their repair procedures are marked in accordance with the likelihood of...

Page 20: ... entry Oil required Hitachi pneumatic tool lubricant 1 oz 30 cc oil feeder Code No 877153 4 oz 120 cc oil feeder Code No 874042 1 quart 1 ltr can Code No 876212 If Gasket B 5 is damaged replace it and check that no air is leaking Be especially careful to prevent the entry of foreign particles into the control valve section Use the conventional grip tape for repair of the grip rubber because the gr...

Page 21: ...0 2 3 procedures and push out the Cylinder 14 from the lower part of the main body b Reassembly Reassembly can be accomplished by following the disassembly procedures in reverse However special attention should be given to the following items Reassembly of the Piston 10 can be most easily accomplished by inserting the Piston 10 into the Cylinder 14 as illustrated in Fig 11 and insertng the Piston ...

Page 22: ... 19 Fig 10 Fig 11 Piston 10 Cylinder Guide 18 Piston 10 Cylinder Ring 15 Cylinder 14 Cylinder Plate 13 Body Ass y 21 ...

Page 23: ...res should be followed in the reverse order Note the following points Plunger B 60 is apt to come off during disassembly Be sure to check that Plunger B 60 is securely mounted during reassembly Mount the Roll Pin D3 x 45 46 without fail Fig 12 Head Cap Ass y 8 Exhaust Cover 4 Hex Socket Hd Bolt M5 x 20 3 Top Cover 2 Hex Socket Hd Bolt M5 x 25 1 Exhaust Valve 7 Gasket C 6 Gasket B 5 Tool required H...

Page 24: ...n Bumper 23 Nose 26 Machine Screw W Washers M5 x 14 Black 78 Nylon Nut M5 39 Roll Pin D3 x 45 46 Roll Pin D4 x 16 30 Handle Arm 69 Body Ass y 21 Hex Socket Hd Bolt M5 x 18 34 Gasket A 25 Machine Screw W Sp Washer M5 x 16 Black 47 Blade Guide 31 Guard 36 Washer 35 Sleeve 37 Nylon Nut M5 39 Hex Socket Hd Bolt M5 x 10 29 ...

Page 25: ...oll Pin D3 x 30 68 Plunger B 60 b Reassembly Reassembly can be accomplished by following the disassembly procedures in reverse However special attention should be given to the following items Be very careful in handling the Plunger Spring 55 as it can become twisted very easily To prevent the two O rings on the outside of the Valve Bushing 59 from being damaged when inserted into the body carefull...

Page 26: ... 23 Fig 15 Adjustment of safety bolt Plunger A 56 Plunger B 60 Pushing Lever 51 Nut M5 50 Safety Bolt 49 Pushing Lever A 54 Valve Guard 45 Trigger 67 Nose 26 Adjuster 52 Guard 36 ...

Page 27: ...n which the staple is raised when adjusting the driving depth so that Pushing Lever A 54 can be removed Remove the two Ratchet Springs 53 from the Adjuster 52 with the small flat blade screwdriver having while being very careful not to lose them Now the Adjuster 52 can be removed from Pushing Lever 51 Push out the Hinge Pin 76 with a flat blade screwdriver as shown in Fig 17 Holding the top of the...

Page 28: ...echeck the tightening torque of each screw Check that Pushing Lever A 54 and Pushing Lever 51 slides smoothly Check that the machine will not operate only by actuating Trigger 67 Also check that the machine will not operate only by depressing Pushing Lever A 54 Magazine Cover 70 Mount the Cover Spring 72 facing the longer arm side toward the magazine b Reassembly Disassembly procedures should be f...

Page 29: ...Flow Top Cover Exhaust Cover Gasket B Gasket C Exhaust Valve Head Cap 60 min 50 Nose Blade Guide Magazine Ass y Magazine Cover Ribbon Spring Staple Feeder Pushing Lever Adjuster Lock Lever Valve Guard Holder Spring General Assembly Adjustment Cylinder Body Valve Cylinder O ring x 3 Cylinder O ring x 4 Cylinder Plate Cylinder Ring Cylinder Spring Cylinder Guide Body Ass y Piston Bumper Bumper Sheet...

Page 30: ...achi Power Tools 501 502 503 504 1 3 2 4 5 6 7 8 9 10 12 11 13 14 15 16 11 17 18 19 11 20 21 22 23 24 47 26 27 39 40 41 42 43 35 34 44 39 55 56 57 58 59 60 61 62 58 63 64 65 66 67 68 34 69 70 72 39 75 71 73 76 77 78 74 35 36 37 28 29 51 54 53 48 49 50 52 38 45 46 25 32 33 31 30 ...

Page 31: ...D 38 22 877 125 CYLINDER O RING C 1 23 884 350 PISTON BUMPER 1 24 884 351 BUMPER SHEET 1 25 876 673 GASKET A 1 26 884 352 NOSE 1 27 878 181 NYLOCK HEX SOCKET HD BOLT M5X16 4 28 884 360 GUIDE PLATE 1 29 949 819 HEX SOCKET HD BOLT M5X10 10 PCS 2 30 949 497 ROLL PIN D4X16 10 PCS 1 31 884 361 BLADE GUIDE 1 32 884 362 LOCK LEVER 1 33 949 866 ROLL PIN D3X30 10 PCS 1 34 949 658 HEX SOCKET HD BOLT M5X18 1...

Page 32: ...VALVE PACKING 1 62 875 645 URETHANE BALL C D7 14 1 63 875 644 VALVE PLATE 1 64 877 335 TRIGGER VALVE BUSHING 1 65 874 820 PLUNGER O RING 1 66 878 121 TRIGGER PLUNGER 1 67 876 203 TRIGGER 1 68 949 866 ROLL PIN D3X30 10 PCS 1 69 884 363 HANDLE ARM 1 70 883 718 MAGAZINE COVER 1 71 881 047 RIBBON SPRING 1 72 881 043 COVER SPRING 1 73 949 749 ROLL PIN D3X8 10 PCS 1 74 881 039 MAGAZINE PIECE 1 75 884 35...

Page 33: ...ANDARD ACCESSORIES ITEM NO CODE NO DESCRIPTION REMARKS NO USED N 5024A Printed in Japan 030920N 501 944 458 HEX BAR WRENCH 4MM 1 502 875 769 SAFETY GLASSES 1 503 882 413 CAUTION TAG 1 504 882 414 LEAFLET 1 601 876 762 SEQUENTIAL TRIP MECHANISM KIT 1 602 881 768 GRIP TAPE A 1 603 880 407 TAPE 1 ...

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