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Hitachi NT 65GB, Technical Data And Service Manual

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Hitachi NT 65GB Technical Data And Service Manual Download Page 15

-12-

2) Holding down the Trigger 

[71]

 makes

the spark switch turn on. The spark
plug in the combustion chamber then
discharges (Fig. 6).
The fuel thus burns and a sudden
expansion occurs. The Piston 

[27]

 is

then lowered to drive nails (Fig. 7).
When the Piston 

[27]

 passes the

hole of Cylinder Ass'y (A) 

[104A]

,

combustion gas is partially released
into the atmosphere through the
Reed Valve 

[50]

. Because the

Reed Valve 

[50]

 is a non-return

valve, no air enters Cylinder Ass'y
(A) 

[104A]

. When the Piston 

[27]

contacts the Piston Bumper 

[28]

,

the combustion of fuel is almost
completed.

(3) During return

Piston Ring (B) 

[17]

 seals the Chamber

[16]

 to cut off the atmosphere (Fig. 7).

Because combustion gas is partially
released into the atmosphere
through the Reed Valve 

[50]

, the

pressure at the upper portion of the
Piston 

[27]

 becomes lower than the

atmospheric pressure. The Piston 

[27]

is returned to its initial position by the
difference in pressure between the
upper and lower portions of the
Piston 

[27]

.

Spark

Plug (A) 

[5]

Combustion

chamber

Piston 

[27]

Hole of Cylinder

Ass'y (A) 

[104A]

Piston

Bumper 

[28]

Spark switch

Trigger 

[71]

Hole of Cylinder

Ass'y (A) 

[104A]

Piston 

[27]

Fig. 6

Fig. 7

Summary of Contents for NT 65GB

Page 1: ...GAS FINISH NAILER NT 65GB NT 65GB E047 Aug 2011 N ...

Page 2: ...AND SERVICE 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 Competitors Symbols Utilized Company Name Model Name P Paslode 900600 USA IM65AF16 EU ...

Page 3: ...ration 11 9 TROUBLESHOOTING GUIDE 15 9 1 Problems Caused by Improper Handling 15 9 2 Troubleshooting and Corrective Action 17 9 3 Checking for Sparking and Corrective Action 23 9 4 Regrinding the Driver Blade 24 10 DISASSEMBLY AND REASSEMBLY 24 10 1 General Precautions on Disassembly and Reassembly 24 10 2 Disconnecting and Reconnecting Wiring between the Cylinder Head Section and Handle Section 2...

Page 4: ... New aggressive appearance 4 2 action nail feeding 5 Comfortable grip 6 Fully charged in one hour 7 Two lithium ion batteries included 8 AC charger and DC charger car battery charger included 3 APPLICATIONS Finish nailing of door casings and similar frame assemblies Fastening of drawer bottoms and similar assembly work in the construction of various cabinets and cases 4 SELLING POINTS Lightweight ...

Page 5: ...ap Code No 886349 For Europe Safety glasses Code No 885549 Battery Code No 324148 x 2 UC 3SML Charger with AC DC adapter Case Code No 886857 Allen wrench for M5 screws Code No 944458 Allen wrench for M4 screws Code No 943277 Nose Cap Code No 886349 Optional accessories For North America Lubricant oil A Code No 885546 Fuel cell Code No 728981 Grease Code No 317918 UC 3SFL Charger For Europe Lubrica...

Page 6: ...ecified in Fig 1 The use of other nails will cause the clogging of nails and subsequent nail damage NT 65GB Min Max Fig 1 Nail dimensions 5 4 Nail Driving Force In contrast to a pneumatic nailer a gas nailer s output energy is not optional However output energy can be altered by such environmental conditions as ambient temperature humidity and altitude which affect combustion Fig 2 below compares ...

Page 7: ... Single touch operation by hand Single touch operation by hand Hook Attachable on either right or left sides Fixed on left side Handle grip Rubber Rubber Driving method Single action Single action Driving speed 2 to 3 pcs sec 2 to 3 pcs sec Battery voltage 3 6 V 6 V Charging time 1 hour 2 hour Driving times on a fully charge battery Approx 2 000 pcs Approx 4 000 pcs Fuel cell dimensions ø31 5 x 80...

Page 8: ... dangers inherent in the use of any pneumatic tool cannot be completely eliminated Accordingly the Handling instructions list general precautions and suggestions on the use of precautions tools and specific precautions and suggestions on use of the pneumatic nailer in order to enhance the safe efficient use of the tool by the customer Salespersons must be thoroughly familiar with the Handling Inst...

Page 9: ...ner in well ventilated place No smoking KEEP AWAY FROM SKIN AND EYES and DO NOT BREATHE GAS for SKIN AND EYE IRRITANT and VAPOR HARMFUL DO NOT REFILL For EU OK Befestigung D 47802 Krefeld Germany www okbefestigung de PATENT PENDING 100 3 e 50 Made in Germany 18 g 30 ml DANGER EXTREMELY FLAMMABLE Contents under pressure keep away from temperatures over 50 C 120 F for ex sun radiation Do not use nea...

Page 10: ...arious general safety regulations with which 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 For the USA OSHA 1926 102 Eye and face protection 1926 302 Power operated hand tools ANSI SNT 101 2002 Portable Compressed Air Actuated Fastener Driving Tools Safety Re...

Page 11: ...Container under pressure Store in well ventilated area Do not store above 50 C 120 F e g exposed to direct sunlight Do not display in shop windows Do not store in passages entry halls near doors exits or in attics Do not store together with pyrotechnical goods The quantity stored in sales rooms should not exceed daily sales Storerooms must not occupy more than 20 m2 of floor space A fire extinguis...

Page 12: ... the top of the piston thereby driving the piston downward to drive nails at the driving unit The nails are fed from the magazine unit located in the handle section Head section Cylinder head section This section is at the top of the combustion chamber in the output section There is a fan to stir fuel and fuel is fed from the fuel cell to the combustion chamber in this section The fan is mounted t...

Page 13: ...lug A 5 Motor spring Fan 11 Combustion chamber Chamber 16 Piston 27 Cylinder Ass y A 104A Housing 30A Piston Bumper 28 Lock Lever 36A Guide Plate 38 Pushing Lever A 82 Nail Feeder B 91 Trigger 71 Spark switch Battery 58 Actuator 56 Head section Cylinder head section Output section Handle section ...

Page 14: ... rotates b The Chamber Head 14 and the Chamber 16 surface are sealed by the Piston Ring B 17 simultaneously Thus the combustion chamber is cut off from the atmosphere c The protrusion of the Chamber Head 14 pushes up the tip of the Actuator 56 to rotate it The Actuator 56 thus pushes the back of the fuel cell to spray fuel into the combustion chamber Fig 4 Combustion chamber Fan 11 Chamber 16 Cyli...

Page 15: ...n the Piston 27 contacts the Piston Bumper 28 the combustion of fuel is almost completed 3 During return Piston Ring B 17 seals the Chamber 16 to cut off the atmosphere Fig 7 Because combustion gas is partially released into the atmosphere through the Reed Valve 50 the pressure at the upper portion of the Piston 27 becomes lower than the atmospheric pressure The Piston 27 is returned to its initia...

Page 16: ...tate and the sealing by Piston Ring B 17 is released When the Fan 11 rotates air passes through the Filter Mesh 2 enters the combustion chamber and is then discharged outside in order to discharge gas and cool the combustion chamber Fig 8 Filter Mesh 2 Piston Ring B 17 Chamber 16 Pushing Lever A 82 Fan 11 Fig 8 ...

Page 17: ...r Stopper 75 and moves when the Chamber 16 reaches the uppermost position The tip of the Trigger Stopper 75 does not prevent the Trigger 71 from rotating Fig 9 Holding down the Trigger 71 turns on the spark switch and drives nails When pressing the Pushing Lever A 82 after depressing the Trigger 71 When depressing the Trigger 71 the tip of the Trigger Stopper 75 prevents the Trigger 71 from rotati...

Page 18: ...t or set improperly The nailer does not start No electricity is sent Set the Battery 58 properly in the nailer The nailer is used while the battery indicator light is red Fig 11 Output is decreased The number of revolutions of the Fan 11 is low Charge the Battery 58 The nailer is used with a clogged Filter Mesh 2 Output is decreased The nailer generates heat Discharge and cooling are insufficient ...

Page 19: ...e fuel cell with a new one Insufficient sealing of the cup and stem in the metering valve Check whether fuel is leaking by holding down the stem Replace the metering valve with a new one The nailer is left under a high temperature condition The nailer is left in direct sunlight or nails are driven continuously Excessively high concentration of gas The main body is hot due to combustion heat Allow ...

Page 20: ...6 is deformed The Adapter 20 is damaged Set the fuel cell properly Fig 13 Replace the fuel cell Set the metering valve to the fuel cell properly Fig 14 Replace the Actuator 56 Replace Adapter 20 Pushing Lever A 82 cannot be pushed up Pushing Lever A 82 is deformed The Pushing Lever Arm 77 is deformed Piston Ring B 17 is pinched Replace Pushing Lever A 82 Replace the Pushing Lever Arm 77 Mount Pist...

Page 21: ... 18 Fig 15 Fig 16 Connection between Internal Wire A 60A and the Controller 95 Controller 95 Support B 59 with adhesive ...

Page 22: ...ston 27 does not return completely Check the position of the Piston 27 Piston Ring B 17 is worn The Reed Valve 50 is deformed The cylinder is stained inside Piston Ring A 26 is damaged Return the Piston 27 to the uppermost position with a flat blade screwdriver Hold down Pushing Lever A 82 securely until nailing operation is completed Replace Piston Ring B 17 Replace the Reed Valve 50 Clean inside...

Page 23: ... 20 Fig 17 Spark Plug A 5 Clean this area in particular Fan 11 ...

Page 24: ...d or damaged The Ribbon Spring 90 is abnormal deformed or damaged The Nail Rail 97 is abnormal deformed burrs damaged or fatigued Adhesive fragments are on the nail rail or it needs oil Foreign matter is found on the guide face of Nail Feeder A 92 Check whether the nail feeder operates smoothly in the magazine Check whether nails one strip move smoothly in the magazine Repair or replace the defect...

Page 25: ... and check whether the nail is bent Check Nail Feeder A 92 for any abnormal condition Turn the adjuster to a lower position in order to reduce pressure See item 1 Replace the driver blade Do not use unspecified workpieces Replace Nail Feeder A 92 3 Head of a nail driven into a workpiece protrudes from the wood surface The adjuster is improperly adjusted The workpiece is very hard The driver blade ...

Page 26: ... the Cylinder Head 7A and check that the Fan 11 does not contact nearby components 3 Push up Pushing Lever A 82 to rotate the motor 4 Hold down the Trigger 71 If sparking does not occur from the spark plug Fig 18 as a result of the operation above check and take corrective action as follows Disassemble and reassemble the nailer according to Chapter 10 DISASSEMBLY AND REASSEMBLY Checking and correc...

Page 27: ... 8 oz 250 cc oil feeder Code No 885 246 or 885 546 Use the cleaner Code No 885245 to clean such inner parts Pull out and insert the roll pin on a stable worktable and be careful not to deform or damage the roll pin by applying exceeding force to it Tightening torque for each part Bolt and others Tightening torque N m kgf cm ft lb Hex Socket Set Screw M4 x 5 21 1 4 0 2 14 2 1 0 15 Seal Lock Hex Soc...

Page 28: ...ton Ring B 17 Thoroughly apply oil Piston Ring B 17 Thoroughly apply oil Cylinder Ass y A 104A Apply oil to the diagonally shaded areas Inside Outside O ring groove Piston Ring A 26 Thoroughly apply oil Piston 27 Apply oil to the diagonally shaded areas Outside Piston ring groove Inside Chamber ass y Apply oil to the diagonally shaded areas Inside Piston ring sliding portions 2 places Fig 20 ...

Page 29: ...ulder Bolt M5 24 to remove the Top Cover 4A Disconnect the red cable from Spark Plug A 5 Be sure to hold the black rubber cap at disconnection to prevent the cable from being damaged Do not yank the cable If it is difficult to disconnect the rubber cap from Spark Plug A 5 fit the tip of a Phillips screwdriver or similar tool into the root of the rubber cap s cable outlet and then pry off the rubbe...

Page 30: ... 27 Fig 22 Hex Socket Hd Bolt W Flange M5 x 10 3 Top Cover 4A Nylock Hex Socket Hd Bolt M4 x 12 6 Cylinder Head 7A Filter Cover 1A Filter Mesh 2 Adapter 20 Hex Shoulder Bolt M5 24 Packing 19 ...

Page 31: ... reassembly by reversing the disassembly procedure Note the following points When mounting the cylinder head section to the main body align the core Cylinder Ass y A 104A with the core of the cylinder head section and then tighten the Nylock Hex Socket Hd Bolt M4 x 12 6 Perform wiring as shown in Fig 23 Push in the Adapter 20 until it contacts the Cylinder Head 7A ...

Page 32: ...embly and reassembly of the Cylinder Head 7A and related parts Tools required Hex bar wrench 3 mm 0 118 Spanner 5 5 mm 0 217 x 2 Socket wrench 8 mm 0 314 Spanner 7 mm 0 276 a Disassembly See Fig 24 Remove Piston Ring B 17 Remove the Nut M3 8 Spring Washer M3 9 and Washer M3 10 to remove the Fan 11 Use a hex bar wrench to remove the Hex Socket Set Screw M4 x 5 21 and then remove the Motor Ass y 25B...

Page 33: ...e No 885 546 or 885 246 Piston Ring B 17 and the mount sleeve Set the mount sleeve with the uneven surface facing outward Place the end of the mount sleeve to face direction A as illustrated in Fig 25 Match the center of the upper and lower ends of the motor spring to the center of the motor mount UP direction in the figure as illustrated in Fig 26 Set the Cylinder Head 7A and Motor Ass y 25B as s...

Page 34: ...ion and handle section See Fig 27 Tool required Hex bar wrench 3 mm a Disassembly Remove the cylinder head section from the main body Fig 27 Removing the Hex Shoulder Bolt M4 x 32 41 allows you to disassemble both the housing section and handle section Fig 27 b Reassembly Disassembly procedures should be followed in the reverse order Note the following points Check that each lever protruded from t...

Page 35: ...ex Socket Hd Bolt M4 x 10 74 allows you to separate the components into the chamber ass y cylinder ass y and push lever arm ass y b Reassembly Conduct reassembly by reversing the disassembly procedure Note the following points Apply oil along the inner circumference of the chamber ass y on sliding surfaces of the cylinder and cylinder head and along the outer circumference of the cylinder ass y pi...

Page 36: ...iston Bumper 28 Cylinder 42A Chamber Stop Rubber 43 Housing 30A Chamber Spring 73 Seal Lock Hex Socket Hd Bolt M4 x 10 74 Nylon Nut M5 44 Pushing Lever Arm 77 Pushing Lever Piece 78A O Ring S 8 79 Adjuster 80 Ratchet Spring 81 Pushing Lever A 82 Pin 31 Blade Guide 32 Seal Lock Hex Socket Hd Bolt M4 x 12 33 Lock Lever Cover 34 Lock Lever 36A Fig 29 ...

Page 37: ...face of the Pushing Lever Arm 77 contacts the upper side of the Chamber Stop Rubber 43 thereby preventing removal of the Chamber Spring 73 from the Cylinder 42A with support provided by the Pushing Lever Arm 77 Fig 30 Seal Lock Hex Socket Hd Bolt M4 x 10 74 Chamber 16 Pushing Lever Arm 77 Contact surface Pushing Lever Arm 77 Chamber Stop Rubber 43 Spring mounting portion of the Pushing Lever Arm 7...

Page 38: ...ston 27 while being careful not to deform the rings Remove the Piston Bumper 28 by inserting the roll pin puller or similar tool into the screw hole of Cylinder Ass y A 104A or into the opening at the end of the Piston 27 and then striking it with a hammer Fig 32 Remove the Seal Lock Hex Socket Hd Bolt M4 x 8 46 and then remove the exhaust port components starting with the Buffer Cover 48 and Muff...

Page 39: ... 36 Fig 32 Roll pin puller Direction of exhaust Push in here Roll pin puller Cylinder Ass y A 104A Piston Bumper 28 Piston 27 ...

Page 40: ...ss y A 104A as described in Section 10 1 Mount the two Piston Ring A 26 to the Piston 27 and be careful not to deform the rings Be careful about the following when mounting the Piston 27 to Cylinder Ass y A 104A 1 Position each split of the two Piston Ring A 26 at an angle of 90 degrees relative to the exhaust port aligning both splits at 180 degree opposite positions Fig 34 2 Confirm that the tip...

Page 41: ...ston Ring A 26 1 Piston Ring A 26 2 Piston 27 A Split of Piston Ring A 26 1 Cylinder Ass y A 104A Split of the Piston Ring A 26 2 Direction of exhaust Direction of exhaust Chamfered side of the driver blade Direction of exhaust ...

Page 42: ...the Chamber Head 14 Remove the Hex Socket Hd Bolt M4 x 16 13 to facilitate removal of the Chamber Head 14 Gasket 15 and Chamber 16 Fig 36 Face the split of the Retaining Ring For D40 Hole 18 toward the no concave portion of Cylinder Ass y A 104A Direction of exhaust Retaining Ring For D40 Hole 18 Cylinder Ass y A 104A Retaining Ring For D40 Hole 18 Cylinder Ass y A 104A Piston 27 Face the sagged s...

Page 43: ...ber Plate 12 into the groove of the Chamber Head 14 while pulling the Plate Fig 37 5 Disassembly and reassembly of the pushing lever arm ass y Tools required Spanner 8 mm or slender hd pliers x 2 Flat blade head screwdriver with small tip a Disassembly Use the small flat blade screwdriver to remove the Ratchet Spring 81 from the Adjuster 80 while being very careful not to lose the springs The Adju...

Page 44: ...lacing the pin puller at the Roll Pin D3 x 10 35 and then striking the puller with a hammer Remove the Lock Lever 36A by first placing the pin puller at the Roll Pin D3 x 16 37 and then striking the puller with a hammer b Reassembly Secure the Lock Lever 36A to the Guide Plate 38 with the Roll Pin D3 x 16 37 Secure the Lock Lever Cover 34 to the Guide Plate 38 with the Roll Pin D3 x 10 35 Fix the ...

Page 45: ...er Stopper 75 Cord Cover Plate 72 Actuater Ass y Terminal Support 69 Packing 19 Stopper Spring B Lock Nut M4 Black 63 b Reassembly Reassemble the magazine cover ass y as described in Section 10 5 2 Place Handle B 40A on a workbench and then set all related parts on Handle B 40A Be careful not to mix up the anode and cathode of Internal Wire A 60A Gently set Handle A 68A on Handle B 40A while caref...

Page 46: ...ew W Flange D4 x 20 Black Tapping Screw W Flange D4 x 16 Black Dimensions Number of screws bolts 1 2 Tightening torque N m kgf cm ft lb 1 5 0 5 15 5 1 1 0 4 Fig 40 Tapping Screw W Flange D4 x 16 Black 39 Tapping Screw W Flange D4 x 20 Black 57 ...

Page 47: ...A 68A Red Handle B 40A Terminal Support 69 Black 2 Wires A A Handle A 68A B B No magazine indication Lock Nut M4 Black 63 Packing 19 Handle B 40A A A B B Trigger Spring 70 Stopper Spring B Trigger Stopper 75 Trigger 71 Magazine cover ass y Actuator ass y ...

Page 48: ...g Screw W Flange D4 x 20 Black 57 The Magazine 99 can now be removed Remove the Tapping Screw W Flange D4 x 12 Black 96 The Controller 95 can now be removed Use the roll pin puller to pull out the Roll Pin D2 5 x 26 98 and Roll Pin D3 x 16 89 from Nail Feeder B 91 Nail Feeder A 92 Stopper Spring C 93 and the Ribbon Spring 90 can now be removed Remove the Tapping Screw W Flange D3 x 10 Black 103 an...

Page 49: ... 20 1 1 to 1 4 0 8 0 2 8 2 0 6 0 15 Fig 42 Internal Wire A 60A Tapping Screw W Flange D4 x 20 Black 57 Magazine Cover 86 Machine Screw M5 x 15 Black 88 Bolt Washer M5 87 Prism 94 Tapping Screw W Flange D4 x 12 Black 96 Controller 95 Nail Rail 97 Nylon Nut M5 44 Pushing Stopper B 100 Pushing Stopper Spring 101 Pushing Stopper Cover B 102 Tapping Screw W Flange D3 x 10 Black 103 Roll Pin D3 x 16 89 ...

Page 50: ...g 90 and Nail Feeder B 91 lnsert the Prism 94 into the Magazine Cover 86 Secure the Controller 95 with Internal Wire A 60A onto the Magazine Cover 86 by tightening the Tapping Screw W Flange D4 x 12 Black 96 Secure Pushing Stopper B 100 the Pushing Stopper Spring 101 and Pushing Stopper Cover B 102 onto the Magazine 99 by tightening the Tapping Screw W Flange D3 x 10 Black 103 Assemble the Nail Ra...

Page 51: ...t Cylinder Cylinder Head Motor Ass y Fan Rubber Plate Piston Piston Ring A x 2 Piston Ring B x 2 Piston Bumper Chamber Head Gasket Chamber Housing Internal Wire A Trigger Spring Trigger Trigger Stopper Controller Prism Magazine Nail Rail Nail Feeder A Nail Feeder B Ribbon Spring Magazine Cover Blade Guide Guide Plate Pushing Lever Arm Adjuster Pushing Lever A Handle A Handle B Cylinder Ass y A ...

Page 52: ...1 40A 57 39 69 58 72 74 44 77 78A 80 81 82 70 76 75 68A 24 63 65 66A 73 39 86 94 95 87 88 97 99 44 89 90 91 92 98 93 96 35 34 32 33 31 38 36A 37 84 85 501 502 503 505 506A 507 79 504 100 101 102 103 17 22 25B 5 20 6 7A 9 10 11 10 8 12 14 15 16 18 19 17 21 23B 8 9 13 26 46 57 62 60A 83 105 107 40A 67A 68A 46 53 104A 42A 106B 7A 23B 25B ...

Page 53: ...90 SHAFT COVER 1 24 886 566 HEX SHOULDER BOLT M5 2 25B 887 446 MOTOR ASS Y 1 INCLUD 21 22 105 26 886 286 PISTON RING A 2 27 886 573 PISTON 1 28 886 289 PISTON BUMPER 1 29 NAME PLATE 1 30A 331 425 HOUSING 1 31 886 310 PIN 1 32 886 575 BLADE GUIDE 1 33 886 311 SEAL LOCK HEX SOCKET HD BOLT M4 X 12 3 34 886 574 LOCK LEVER COVER 1 35 949 776 ROLL PIN D3 X 10 10 PCS 1 36A 887 453 LOCK LEVER 1 37 949 496...

Page 54: ...86 301 CHAMBER SPRING 2 74 886 308 SEAL LOCK HEX SOCKET HD BOLT M4 X 10 2 75 886 552 TRIGGER STOPPER 1 76 949 890 PIN D3 X 20 10 PCS 1 77 886 299 PUSHING LEVER ARM 1 78A 887 035 PUSHING LEVER PIECE 1 79 992 912 O RING S 8 1 80 886 338 ADJUSTER 1 81 886 331 RATCHET SPRING 1 82 886 578 PUSHING LEVER A 1 83 CAUTION LABEL A 1 84 CAUTION LABEL 1 FOR EUROPE 85 WARNING LABEL 1 85 WARNING LABEL 1 FOR USA ...

Page 55: ...NG S 12 2 106B 887 891 CYLINDER HEAD ASS Y 1 INCLUD 7A 23B 25B 107 331 424 HANDLE ASS Y 1 INCLUD 40A 67A 68A DESCRIPTION REMARKS 501 CHARGER MODEL UC 3SML 1 502 875 769 SAFETY GLASSES 1 503 943 277 HEX BAR WRENCH 3MM 1 504 944 458 HEX BAR WRENCH 4MM 1 505 886 349 NOSE CAP A 1 506A 886 857 CASE 1 507 886 036 LUBRICANT OILER B 1 FOR EUROPE 4 Printed in Japan 8 11 110818N ALTERNATIVE PARTS NO USED CO...

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