Hitachi NR 90GC Technical Data And Service Manual Download

Page: 72 / 78

--- 69 ---

(1) Check only the main body for the following.

Check that the Pushing Lever

[64]

does not operate when the Feeder Knob

[125]

is at the forward end.

Check that the Pushing Lever

[64]

operates smoothly when the Feeder Knob

[125]

is pulled backward.

Check that the Trigger

[98]

operates smoothly.

Check that the Cell Lever

[105]

operates smoothly when pressing the Pushing Lever

[64]

against a workpiece.

Press the Pushing Lever

[64]

against a workpiece and depress the Trigger

[98]

. Check that the chamber

ass'y is held at the top dead center and it does not return to the bottom dead center even if the Pushing Lever

[64]

is released. Release the Trigger

[98]

and check that the chamber ass'y returns to the bottom dead

center.

(2) Check the main body with the battery loaded for the following.

Check that the Prism

[96]

lights.

Check that the Fan

[20]

rotates when pressing the Pushing Lever

[64]

against a workpiece.

Check that the Fan

[20]

stops about 6 to 7 seconds after the Pushing Lever

[64]

is released.

(3) Check the main body with the battery, fuel cell and nails loaded for the following.

Check that no nail is driven just by depressing the Trigger

[98]

. Check that no nail is driven just by pressing

the Pushing Lever

[64]

against a workpiece (check that the Fan

[20]

is rotating).

Check that the Pushing Lever

[64]

operates smoothly.

Check that the piston returns to the top dead center by driving a nail actually (do not drive nails continuously to

prevent idle driving).

Press the Pushing Lever

[64]

against a workpiece and depress the Trigger

[98]

partway to hold the Chamber

[24]

at the top dead center. Then release the Pushing Lever

[64]

and depress the Trigger

[98]

fully to check

that no nail is driven.

Check that no nail is driven when pressing the Pushing Lever

[64]

against a workpiece with the Trigger

[98]

depressed.

(4) Perform the following after the above checking.

Check that the main body is not loaded with the battery, fuel cell and nails.

Recheck the tightening torque of each screw.

Set the Pushing Lever

[64]

to the uppermost position (nails are driven to the deepest position).

11. INSPECTION AND CONFIRMATION AFTER REASSEMBLY

Summary of Contents for NR 90GC

Page 1: ...TECHNICAL DATA AND SERVICE MANUAL GAS STRIP NAILER NR 90GC SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST No E025 Sept 2005 N MODEL NR 90GC Hitachi Power Tools ...

Page 2: ...is TECHNICAL DATA AND SERVICE MANUAL a symbol is used in the place of company name and model name of our competitor The symbol utilized here is as follows Symbols Utilized Competitors Company Name Model Name P Paslode IMCT ...

Page 3: ...BLESHOOTING GUIDE 16 9 1 Problems Caused by Improper Handling 16 9 2 Troubleshooting and Correction 19 9 3 Checking for Sparking and Corrective Action 26 9 4 Regrinding the Driver Blade 27 10 DISASSEMBLY AND REASSEMBLY 28 10 1 General Precautions in Disassembly and Reassembly 28 10 2 Disconnection and Reconnection of Wiring between Cylinder Head Section and Handle Section 31 10 3 Disassembly and R...

Page 4: ...e main features of the Model NR 90GC are as follows 1 The battery is located at the end of the handle for well balance 2 New aggressive appearance 3 2 actioned nail feeding 4 Comfortable grip 5 Fully charged in one hour 3 APPLICATIONS Floor and framing Truss build up window build up Subflooring and roof decking Wall sheathing Mobile home and modular housing construction 4 SELLING POINTS New aggres...

Page 5: ...ston type Model Driving system NR 90GC For Europe Safety glasses Code No 885549 Battery Code No 324148 Charger UC 7SD Case Code No 885360 Allen wrench for M5 screw Code No 944458 For North America Lubricant oiler A Code No 885546 Fuel cell Code No 728980 Grease Code No 317918 For Europe Lubricant oiler A Code No 885246 Fuel cell Code No 753600 Grease Code No 317918 5 2 Explanation of the Nailing A...

Page 6: ...d at a different angle of 26 degrees Use of such nails will cause clogging of nails and subsequent damage to the nailer Also avoid use of misaligned nails or nails collated with a weak paper tape Do not use P s 2 Roundrive nail eccentric full round head nail with the Model NR 90GC because it may cause bending of nails It is recommended to use genuine HITACHI nails to ensure satisfactory driving qu...

Page 7: ... pneumatic nailers Models NR 90AD and others and the gas nailer Model NR 90GC on the output energy range The output energy of the Model NR 90GC changes within the operating range from 5 7 kg cm2 81 5 psi to 6 1 kg cm2 87 2 psi as a result of conversion to the air pressure of the pneumatic nailer Model NR 90AD Choose suitable nails and workpieces according to the output energy of the nailer Fig 2 R...

Page 8: ...m x 353 mm x 108 mm 12 21 32 x 13 29 32 x 4 1 4 Nail capacity 37 nails 1 strip Maker Magazine type Rear loading Driving depth adjusting mechanism With wrench Handle grip Rubber Hook Dia Length 50 mm 90 mm 2 3 1 2 2 9 mm 3 3 mm 0 113 0 131 50 mm 90 mm 2 3 1 2 310 mm x 343 mm x 110 mm 12 3 16 x 13 1 2 x 4 11 32 37 nails 1 strip Rear loading Tool not required Rubber Single action Single action Provid...

Page 9: ...rds 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 suggestions for the use of the pneumatic nailer are listed in the Handling Instructions to enhance the safe efficient use of the tool by the customer Salespersons must be thoroughly familiar with the conten...

Page 10: ...ace 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 Contents Propane Butane liquefied 100 3 e Made in Germany 40 g 80 ml DANGER EXTREMELY FLAMMABLE Contents under pressure keep away from temperatures over 50ûC 120û F for ex sun radiation Do not use near flames...

Page 11: ...lations 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 face protection 1926 302 Power operated hand tools ANSI SNT 101 2002 Portable Compressed Air Actuated Fastener Driving Tools Safety Requirements for The Europ...

Page 12: ...mmable contents Container under pressure Store in well ventilated area Do not store above 50ûC 120ûF e g sun radiation Do not be displayed in shop windows Do not store in passages entry halls near doors exit or attic Do not store together with pyrotechnical goods The quantity stored in sales rooms should not exceed daily sales Store rooms must not take more than 20 m2 of room surface A fire exting...

Page 13: ...e piston is suddenly lowered to drive nails at the driving unit The nails are fed from the magazine unit 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 to the motor The motor is held in the m...

Page 14: ... Output section Spark Plug A 11 Motor Spring 12 Combustion chamber Housing Ass y 74 Piston 39 Piston Bumper 40 Pushing Lever 64 Feeder Knob 125 Handle section Trigger 98 Motor 6 Head section Cylinder head section Top Cover 3 Cell Cover 109 Filter 4 Switch Lever B 114 Battery 111 Fan 20 ...

Page 15: ...s the combustion chamber is cut off from the atmosphere The convex portion of the Chamber 24 pushes up the Tension Plate 113 on Switch Lever B 114 to rotate Switch Lever B 114 The protrusion of the Chamber Head 22 pushes up the tip of the Cell Lever 105 to rotate it Thus the Cell Lever 105 pushes the back of the fuel cell to spray fuel into the combustion chamber Fig 5 Fig 4 Fuel cell Chamber 24 C...

Page 16: ...le of Cylinder Ass y 42 Switch Lever B 114 Piston 39 Nail Piston Bumper 40 Lead Valve 45 Spark plug O ring 15 Lead Valve 45 Piston 39 Chamber 24 O ring 36 Chamber Lock Bar 100 Combustion chamber 3 During return When the Trigger 98 is depressed the Chamber Lock Bar 100 at the bottom of the Trigger 98 is positioned under the Chamber 24 to prevent the Chamber 24 from lowering while the Trigger 98 is ...

Page 17: ...der the Chamber 24 to the original position Thus the Chamber 24 and the Pushing Lever 64 are placed in the initial state and sealing by the O rings 15 and 36 is released When the Fan 20 rotates air passes through the Filter 4 enters the combustion chamber and goes to the outside in order to discharge gas and cool the combustion chamber Fig 8 Filter 4 Combustion chamber O ring 36 Trigger 98 ...

Page 18: ...ard the Trigger 98 Fig 9 The Lever Stopper 116 at the side of the Trigger 98 does not prevent Switch Lever B 114 from rotating Fig 10 The switch is turned on and nails are driven by depressing the Trigger 98 When pressing the Pushing Lever 64 after depressing the Trigger 98 When depressing the Trigger 98 the Lever Stopper 116 is deformed by the Trigger 98 and the end of the Lever Stopper 116 is po...

Page 19: ...t are apt to occur These problems are not caused by abnormality of the nailer but improper handling Please instruct the customers to use the nailer properly according to the table The Piston 39 is lowered The spark switch is not turned on No electricity is sent The number of revolutions of the Fan 20 is low Discharging and cooling are insufficient No fuel is fed No fuel is fed No fuel is fed The s...

Page 20: ...ng the stem pressed The main body is hot due to the combustion heat The sprayed fuel is in a liquid state Set the metering valve properly the metering valve may be secured by rotating it Replace the metering valve with new one Replace the fuel cell with new one Replace the fuel cell with new one Replace the metering valve with new one Cool the main body and the fuel cell Replace the fuel cell with...

Page 21: ...nds at an altitude of 1500 meters or more Excessively high concentration of gas Problem Possible cause Inspection method Remedy A large amount of fuel is sprayed Use the nailer in a place where the altitude is under 1500 meters Fuel is sprayed but no combustion occurs ...

Page 22: ...r light does not light The Motor 6 does not rotate Problem Possible cause Inspection method Remedy Return the Piston 39 to the uppermost position with a flat blade screwdriver Keep depressing the Trigger 98 securely until the nailing operation is completed Outside air temperature range 0ûC to 40ûC Altitude Under 1500 m 5000 feet Set the fuel cell properly Fig 14 Replace the fuel cell Set the meter...

Page 23: ... 20 The wire must not be pinched when depressing the Trigger 98 Controller 101 Controller connector Fig 16 Fig 17 Spark plug cable Motor wire connector ...

Page 24: ... Piston 39 does not return completely Discharging and cooling are insufficient The outside air temperature and the altitude are out of the specifications Discharging and cooling are insufficient Operating speed is fast Discharging and cooling are insufficient Problem Possible cause Inspection method Remedy Set the Battery 111 properly Replace the Battery 111 Charge the Battery 111 Connect properly...

Page 25: ... 22 Fan Clean this area especially Spark plug cable Spark plug Fig 18 ...

Page 26: ...ged Ribbon Spring 121 is abnormal deformed or damaged Nail Rail 93 is abnormal deformed burrs damaged or fatigued Adhesive fragments are on the nail rail or they need oil Foreign matter is found on the guide face of Nail Feeder A 112 Nose Nail inlet groove of the nose is abnormal deformed burrs or damaged Adhesive fragments are in the nail inlet groove Problem Possible cause Inspection method Reme...

Page 27: ... is abnormal dislocated deformed or damaged O ring 36 of the cylinder is abnormal dislocated deformed or damaged Driver blade is abnormal deformed burrs damaged or fatigued For short nails the adjuster is raised too high Nails are not fully fed into the injection port Unspecified nails are used Driver blade is worn Workpiece is very hard Nail Feeder A 112 is abnormal worn or damaged Problem Possib...

Page 28: ...e is projected from the nose tip Check if the nails are specified ones Check if they move smoothly after putting nails and check if the nail feeder operates smoothly Check if the driver blade tip is worn Check Nail Feeder A 112 for abnormal condition Adjuster is improperly adjusted Workpiece is very hard Driver blade is worn Unspecified nails used Improper nail feed See Magazine in item 1 Driver b...

Page 29: ...ing components 4 Push up the Pushing Lever 64 to rotate the Motor 6 5 Depress the Trigger 98 If sparking does not occur from the spark plug Fig 19 as a result of the above operation perform checking and take corrective actions as follows Disassemble and reassemble the nailer according to 10 DISASSEMBLY AND REASSEMBLY Checking and corrective action 1 Check for stain of Spark Plug A 11 Clean Spark P...

Page 30: ... 20 To grind with a grinder gradually grind the tip while cooling the ground area with water to prevent it from being excessively heated Excessive grinding will rapidly reduce the service life of the driver blade In such a case replace the driver blade Fig 20 Slant Grinding surface Driver blade 5û ...

Page 31: ...5 for cleaning the inner parts such as O rings Tightening torque for each part Bolt and others Tightening torque N m kgf cm ft lb 3 4 0 7 35 7 2 5 0 5 4 6 0 5 45 5 3 4 0 4 6 4 0 5 65 5 4 7 0 4 1 0 to 1 5 10 to 15 0 7 to 1 1 6 4 0 5 65 5 4 7 0 4 Hex Socket Set Screw M4 x 5 31 Hex Socket Hd Bolt M4 x 10 61 Hex Socket Hd Bolt M4 x 10 43 Hex Socket Hd Bolt M4 x 16 21 Hex Socket Hd Bolt M4 x 18 127 Hex...

Page 32: ...y oil to the diagonally shaded areas Outside O ring groove Piston Ring 38 Apply oil entirely Chamber ass y Apply oil to the diagonally shaded areas Inside O ring sliding portions 2 places Fig 21 Cylinder Ass y 42 Apply oil to the diagonally shaded areas Inside Outside O ring groove Piston 39 Apply oil to the diagonally shaded areas Outside Piston ring groove ...

Page 33: ... 30 Handle B 84 Grease application areas Plunger of the fan switch Plunger of the trigger switch Fig 22 ...

Page 34: ...er M5 2 then open the Top Cover 3 Do not open the Top Cover 3 excessively Otherwise it may be broken Disconnect the red cable from Spark Plug A 11 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 11 pry the rubber cap off with a Phillips screwdriver or the like by fi...

Page 35: ...andle section Connector of the motor Wiring connected to the motor Spark plug cable Top Cover 3 Do not open excessively Hex Socket Hd Bolt M5 x 14 1 Housing section Washer M5 2 Spark Plug A 11 Cylinder head section ...

Page 36: ...inder head section to the main body align the core of the Cylinder Ass y 42 with the core of the cylinder head section and tighten the Hex Socket Hd Bolts M5 x 20 13 while pushing up the Pushing Lever 64 to prevent the O ring 15 from being pinched Perform wiring as shown in Fig 25 Perform wiring so that no wire is placed on this area ...

Page 37: ... 0 314 a Disassembly See Fig 26 Remove the O ring 15 Remove the Nut M4 18 and the Washer M4 19 to remove the Fan 20 Remove the Hex Socket Set Screw M4 x 5 31 with a hex bar wrench Then remove the Machine Screw M4 x 6 28 to remove the Motor Mount 8 Motor Sleeve 9 Shaft Washer 10 and Motor Spring 12 Remove the Roll Pin D2 5 x 25 7 with a roll pin puller Then remove the Motor 6 and the Rubber Washer ...

Page 38: ... Screw M4 x 6 28 Motor Spring 12 Motor 6 Rubber Washer 29 Mount Sleeve 9 Hex Socket Set Screw M4 x 5 31 Spark Plug A 11 Roll Pin D2 5 x 25 7 Nut M4 18 Shaft Washer 10 Washer M4 19 Cylinder Head 14 O ring I D 59 92 15 Fan 20 Nut M4 18 Fig 26 ...

Page 39: ...h the uneven surface faced outward Align the end of the Motor Spring 12 with the center of the Motor Mount 8 and rotate it as shown in Fig 27 Set the Cylinder Head 14 and the Motor Mount 8 as shown in Fig 28 and secure with the Hex Socket Set Screw M4 x 5 31 At this time lightly press the Motor Mount 8 in A direction to prevent the Motor Mount 8 from floating Fig 28 Motor Spring 12 Cylinder Head 1...

Page 40: ...ler 2 0 mm 0 078 dia a Disassembly See Fig 29 Remove the Filter Cover 5 and the Filter 4 Remove the Shaft Ring 26 Then remove the Shaft 27 Washer M5 2 Cell Lever 105 Cell Rubber 110 and Cell Cover 109 Remove the Roll Pin D2 x 8 107 Then remove the Latch 106 and the Spring D3 6 108 Remove the Adapter 30 ...

Page 41: ...t Ring 26 Cell Cover 109 Washer M5 2 Washer M5 2 Cylinder Head 14 Shaft 27 Latch 106 Filter Cover 5 Adapter 30 Roll Pin D2 x 8 107 Spring D3 6 108 b Reassembly Disassembly procedures should be followed in the reverse order Note the following points Push the Adapter 30 in until it contacts the Cylinder Head 14 ...

Page 42: ...Hd Bolt M5 x 50 51 and pull out the Nose Sleeve 52 Then the output section and the Plate Sleeve 54 can be removed from the main body Remove the Hex Socket Hd Bolt M5 x 10 66 Then the Pushing Lever 64 Pushing Stopper 65 Adjuster Bush S 67 Blade Guide 53 and U Nut M5 56 can be removed Hex Socket Hd Bolt M5 x 50 51 Pushing Stopper 65 Nose Sleeve 52 Pushing Lever 64 Handle section Housing section Blad...

Page 43: ...Fig 32 Align the Pushing Lever 64 with Adjuster Bush S 67 fitting the convex portions in the concave portions before tightening the Hex Socket Hd Bolt M5 x 10 66 If the U Nut M5 56 turns together when tightening the Hex Socket Hd Bolt M5 x 20 13 insert a small flat blade screwdriver between the handle and the U Nut M5 56 to stop turning of the U Nut M5 56 Stepped portion Plate Sleeve 54 Slide Plat...

Page 44: ...e Housing Ass y 74 in a single unit It is easy to remove them while pressing the side of the Housing Ass y 74 with a hand Fig 34 Remove the two Pushing Lever Springs 63 with a hand Remove the two Roll Pins D3 x 32 25 with a roll pin puller to remove the chamber section from the Cylinder Ass y 42 Secure the U Nut M4 59 with a spanner 7 mm 0 276 or slender hd pliers and loosen the Hex Socket Hd Bolt...

Page 45: ...Lever Connector 68 Chamber section Piston Bumper 40 Pushing Lever Arm B 62 Seal Lock Hex Socket Hd Bolt M5 x 10 58 U Nut M4 59 Housing Ass y 74 Piston 39 Retaining Ring 37 Pushing Lever Spring 63 Piston Ring 38 Fig 33 O ring I D 66 27 36 Hex Socket Hd Bolt M4 x 10 61 Switch Plate 34 Chamber Stop Rubber 41 Cylinder Plate 57 Lead Valve 45 Buffer Cover 44 Hex Socket Hd Bolt M4 x 10 43 Muffler 50 ...

Page 46: ... 43 1 Keep pressing the side of the housing Piston 39 Fig 34 Piston 39 Small flat blade screwdriver 2 Push the tip of the cylinder Output section Piston Ring 38 Fig 35 Push in Cylinder Ass y 42 Push in ...

Page 47: ...he cylinder and fit the Piston Ring 38 in the piston ring groove of the Piston 39 Then the Piston Ring 38 can be removed by pushing the Piston 39 up Fig 35 Remove the two Piston Rings 38 from the Piston 39 being careful not to deform them Screw a bolt having 20 mm or more threaded portion for example Hex Socket Hd Bolt M5 x 20 13 in the hole beside the outlet of the cylinder or insert a roll pin p...

Page 48: ...o Piston Rings 38 at an angle of 90 degrees with respect to the exhaust port aligning these two splits in 180 degree opposite positions Fig 38 2 If the Piston Ring 38 fits in the retaining ring groove inside the cylinder insert a small flat blade screwdriver into the concave portion 7 places at the end of the cylinder and lightly push the Piston 39 in fitting the Piston Ring 38 in the groove of th...

Page 49: ...on Ring 38 Cylinder Ass y 42 Exhausting direction Push lightly Piston Ring 38 Piston 39 Small flat blade screwdriver Chamfered side of the driver blade Fig 38 Split of the Piston Ring 38 Exhausting direction Push lightly Piston 39 ...

Page 50: ... Face the sagged side of the Retaining Ring 37 to the Piston 39 Figs 40 and 41 Fig 40 Concave portion 7 places Retaining Ring 37 Cylinder Ass y 42 Face the split of the Retaining Ring 37 to the no concave portion of the Cylinder Ass y 42 Fig 41 Piston 39 Face the sagged side of the Retaining Ring 37 to the Piston 39 Retaining Ring 37 Cylinder Ass y 42 Exhausting direction ...

Page 51: ...panner 7 mm 0 276 or slender hd pliers and tighten the Hex Socket Hd Bolt M4 x 10 61 Mount the Chamber Stop Rubber 41 and the chamber ass y to the Cylinder Ass y 42 Align the roll pin hole of the Chamber 24 with the bent portion of Pushing Lever Arm A 60 or B 62 and drive the two Roll Pins D3 x 32 25 with a roll pin puller Fig 43 Use a pedestal when driving the Roll Pins D3 x 32 25 Fig 44 Do not s...

Page 52: ...ylinder Ass y 42 Pushing Lever Arm A 60 or B 62 Roll Pin D3 x 32 25 Split of the Roll Pin D3 x 32 25 Pushing Lever Arm A 60 or B 62 Chamber 24 Support the Chamber 24 with a pedestal Chamber 24 Fig 43 Fig 44 ...

Page 53: ...than the Seal Lock Hex Socket Hd Bolt M5 x 10 58 because a special adhesive is used for the Seal Lock Hex Socket Hd Bolt M5 x 10 58 Cylinder Ass y 42 Pushing Lever Spring 63 Pushing Lever Connector 68 Convex portion Fig 45 Mount the Pushing Lever Spring 63 and insert the Cylinder Ass y 42 into the Housing 71 At this time fit the convex portion of the Pushing Lever Connector 68 in the end of the Pu...

Page 54: ...inder Ass y 42 Cylinder Plate 57 Make the Cylinder Plate 57 contact with the convex portion of the Cylinder Ass y 42 Do not overlap the cylinder Plate 57 on the convex portion of the Cylinder Ass y 42 Driver blade Blade Guide 53 Cylinder Plate 57 Convex portion of the Cylinder Ass y 42 Fig 46 Section A A ...

Page 55: ...wdriver a Disassembly Remove the Hex Socket Hd Bolt M4 x 16 21 Then the Chamber Head 22 Gasket A 23 and Chamber 24 can be removed Remove the Machine Screw M4 x 6 33 Then the Chamber Lock Plate 32 can be removed Hex Socket Hd Bolt M4 x 16 21 Chamber 24 Gasket A 23 Chamber Head 22 Chamber Lock Plate 32 Machine screw M4 x 6 33 Fig 47 ...

Page 56: ...e careful of the mounting direction of Gasket A 23 Fig 48 After mounting the Cylinder Ass y 42 to the Housing 71 mount the Switch Plate 34 to the Chamber 24 Note that the Cylinder Ass y 42 cannot be mounted to the Housing 71 if the Switch Plate 34 is mounted to the Chamber 24 first Fig 48 Convex portion of Gasket A 23 Gasket A 23 Chamber Head 22 ...

Page 57: ...y Push out the Screw M5 70 in A direction as shown in Fig 49 with a hand press The insulator Sheet 72 cannot be replaced because it is adhered with double side adhesive tape b Reassembly Push in the Screw M5 70 in B direction as shown in Fig 49 with a hand press Degrease the adhering surface on the Housing 71 then adhere the Insulator Sheet 72 to the designated position Fig 49 Housing 71 Insulator...

Page 58: ...r Stopper 116 Spring 129 b Reassembly Reassemble handle A ass y and handle B ass y according to 10 5 2 3 Place handle B ass y on a workbench and put handle A ass y on handle B ass y Perform reassembly gently being careful not to drop the Lever Stopper 116 Insert the Magazine Guard 128 not to separate the handle section completely Move Switch Lever B 114 to the designated position Adjust the Spring...

Page 59: ...ex Socket Hd Bolt M4 x 18 Item No Tapping Screw W Flange D4 x 16 Black Tapping Screw W Flange D4 x 20 Black 83 Tapping Screw W Flange D4 x 20 Black 83 127 78 80 Description Dimensions Number of screws bolts Tightening torque N m kgf cm ft lb Tapping Screw W Flange D4 x 45 45 20 16 1 4 1 1 30 0 5 30 3 2 2 0 4 1 0 to 1 5 10 to 15 0 7 to 1 1 Fig 50 ...

Page 60: ... 124 with a hand Remove the Nail Rail 93 with a hand Loosen the Tapping Screw W Flange D5 x 20 Black 126 and remove the Feeder Knob 125 Then the nail feeder ass y can be removed Remove the Side Plate 55 Then the Ribbon Spring 121 Spring D8 122 and Pushing Lever Stopper 123 can be removed Remove the Roll Pin D4 x 28 118 in A direction as shown in Fig 52 Then Nail Feeder A 112 Spring 119 and Nail Fe...

Page 61: ... Flange D5 x 20 Black 126 Handle A 124 Nail Rail 93 Nail feeder ass y Ribbon Spring 121 Feeder Knob 125 Spring D8 122 Pushing Lever Stopper 123 Side Plate 55 Fig 51 Spring 119 Nail Feeder A 112 Roll Pin D4 x 28 118 Nail Feeder B 120 Fig 52 ...

Page 62: ... 59 Do not tilt or pinch the Spring D8 122 Side Plate 55 Handle A 124 Pushing Lever Stopper 123 Ribbon Spring 121 Spring hooking portion Spring D8 122 Nail feeder ass y 1 2 3 Fig 53 ...

Page 63: ... A 124 Mount the Side Plate 55 to Handle A 124 with the spring hooking portion of the Side Plate 55 engaged with the hook of the Ribbon Spring 121 3 Insert a finger into the coil portion of the Ribbon Spring 121 from the front of Handle A 124 Stretch the coil portion in the nail feeder pulling direction Then set the nail feeder to the coil portion and return the nail feeder to the forward position...

Page 64: ... x 14 Black 95 to remove the Magazine Plate 94 Remove the Prism 96 Remove the Flat Hd Tapping Screw D4 104 to remove the Wiring Cover 103 Remove the Switch Arm 82 and the Lock Bar Spring 102 Remove the Tapping Screw W Flange D4 x 14 Black 95 to remove the Controller 101 and Internal Wire A 86 Disconnect the connector of the Controller 101 and Internal Wire A 86 Remove the Roll Pin D2 5 x 10 99 wit...

Page 65: ...Cover 103 Lock Bar Spring 102 Pin D2 5 115 Tapping Screw W Flange D4 x 14 Black 95 Controller 101 Tapping Screw W Flange D4 x 14 Black 95 Magazine Plate 94 Flat Hd Tapping Screw D4 104 Trigger Spring 97 Trigger 98 Roll Pin D2 5 x 10 99 Chamber Lock Bar 100 Sleeve 77 Nylon Nut M5 92 Hook ass y Internal Wire A 86 Handle B 84 Nail Rail 93 Fig 54 2 ...

Page 66: ...al Wire A 86 as shown in Fig 56 Position the other parts as shown in Fig 56 Do not apply tension to the high voltage cable of the Controller 101 and the connector of Internal Wire A 86 Fig 56 Mount the Wiring Cover 103 to Handle B 84 then hang the Chamber Lock Bar 100 on the ring of the Lock Bar Spring 102 Hang the magazine plate on the claw of Handle B 84 3 places Fig 58 Be careful of the mountin...

Page 67: ...et Hd Bolt M5 x 15 76 Switch Arm 82 Hook ass y Tapping Screw W Flange D4 x 14 Black 95 Sleeve 77 Handle B 84 Perform wiring so that no lead wire is placed on this rib and no pinching occurs by the Trigger 98 operation Internal Wire A 86 Position the lead wire at the top Lock Bar Spring 102 Trigger 98 Prism 96 Fig 56 ...

Page 68: ...Chamber Lock Bar 100 Magazine Plate 94 Flat Hd Tapping Screw D4 104 Spring D2 95 117 Hook ass y Nylon Nut M5 92 Switch Lever B 114 Sleeve 77 Wiring Cover 103 Tapping Screw W Flante D4 x 14 95 Hang the Magazine Plate 94 on the claw Fig 57 ...

Page 69: ... 66 Fig 58 Lock Bar Spring 102 Fig 59 Ring Tension Plate 113 Switch Lever B 114 ...

Page 70: ... Roll Pin D3 x 14 87 into the Hook 88 in the direction as shown in Fig 60 It becomes easy to reassemble if the clearance between the Bracket 91 and Washer B 89 is widened with a flat blade screwdriver beforehand Note that the cross groove of the Bracket 91 must be aligned with the Hook 88 properly Perform reassembly in the proper direction as shown in Fig 61 After reassembly rotate the Hook 88 and...

Page 71: ... 68 Fig 61 R o t a t e Bracket 91 Do not protrude the Roll Pin D3 x 14 87 from the Bracket 91 Split of the Roll Pin D3 x 14 87 Fig 62 1 0 0 û ...

Page 72: ...the Pushing Lever 64 is released 3 Check the main body with the battery fuel cell and nails loaded for the following Check that no nail is driven just by depressing the Trigger 98 Check that no nail is driven just by pressing the Pushing Lever 64 against a workpiece check that the Fan 20 is rotating Check that the Pushing Lever 64 operates smoothly Check that the piston returns to the top dead cen...

Page 73: ...gger Trigger Spring Switch Lever B Piston O ring Piston Ring x 2 Piston Bumper Blade Guide Side Plate Cylinder Plate Pushing Lever Arm A Pushing Lever Arm B Pushing Lever Spring Adjustment Cylinder Chamber Head Gasket A Chamber Housing Ass y Magazine Plate Nail Rail Nail Feeder A Nail Feeder B Ribbon Spring Feeder Knob Pushing Lever Pushing Stopper Spark Plug A O ring Handle B Handle A Cylinder Ge...

Page 74: ...26 2 27 28 30 32 33 36 37 38 39 40 41 45 44 43 50 52 51 61 62 63 64 65 66 69 70 71 41 53 54 55 56 57 58 59 60 61 68 67 73 75 76 78 85 82 84 90 89 88 87 86 91 92 101 95 93 94 96 97 98 100 102 104 105 106 108 109 110 111 107 103 501 502 503 504 2 7 12 31 42 46 34 33 72 74 77 79 80 81 99 83 129 116 115 114 118 117 113 112 131 131 119 123 121 120 122 124 126 125 127 128 130 29 ...

Page 75: ... 885 296 CHAMBER 1 25 884 975 ROLL PIN D3X32 2 26 880 319 SHAFT RING 1 27 885 277 SHAFT 1 28 949 214 MACHINE SCREW M4X6 10 PCS 1 29 885 313 RUBBER WASHER 1 30 885 317 ADAPTER 1 31 961 681 HEX SOCKET SET SCREW M4X5 2 32 885 297 CHAMBER LOCK PLATE 1 33 949 214 MACHINE SCREW M4X6 10 PCS 3 34 885 306 SWITCH PLATE 1 36 885 283 O RING I D 66 27 1 37 885 285 RETAINING RING 1 38 885 286 PISTON RING 2 39 8...

Page 76: ...VE 1 78 305 812 TAPPING SCREW W FLANGE D4X16 BLACK 1 79 WARNING LABEL 1 80 301 815 TAPPING SCREW W FLANGE D4X45 1 81 885 334 SWITCH MOUNT 1 82 885 347 SWITCH ARM 1 83 302 086 TAPPING SCREW W FLANGE D4X20 BLACK 4 84 885 330 HANDLE B 1 85 CAUTION PLATE 1 86 885 332 INTERNAL WIRE A 1 87 949 900 ROLL PIN D3X14 10 PCS 1 88 885 343 HOOK 1 89 956 161 WASHER B 1 90 885 345 SPRING D12 1 91 885 344 BRACKET ...

Page 77: ...85 349 PIN D2 5 1 116 885 329 LEVER STOPPER 1 117 885 350 SPRING D2 95 1 118 949 506 ROLL PIN D4X28 10 PCS 1 119 883 687 SPRING 1 120 885 324 NAIL FEEDER B 1 121 885 325 RIBBON SPRING 1 122 885 328 SPRING D8 1 123 885 327 PUSHING LEVER STOPPER 1 124 885 321 HANDLE A 1 125 885 322 FEEDER KNOB 1 126 302 089 TAPPING SCREW W FLANGE D5X20 BLACK 1 127 880 003 HEX SOCKET HD BOLT M4X18 1 128 885 354 MAGAZ...

Page 78: ......

Search results

Summary of Contents for NR 90GC

Reviews:

Related manuals for NR 90GC

Brands by name

Popular brands

Hitachi NR 90GC, Technical Data And Service Manual

Search results

Summary of Contents for NR 90GC

Reviews:

Related manuals for NR 90GC

Brands by name

Popular brands