Hitachi NR90GC - 3-1/2" Gas Powered Clipped Head Framing Nailer Technical Data And Service Manual
  1. Manuals
  2. Brands
  3. Hitachi Manuals
  4. Nail Gun
  5. NR90GC - 3-1/2" Gas Powered Clipped Head Framing...
  6. Technical data and service manual

Hitachi NR90GC - 3-1/2" Gas Powered Clipped Head Framing Nailer Technical Data And Service Manual

Gas strip nailer
Hide thumbs Also See for NR90GC - 3-1/2" Gas Powered Clipped Head Framing Nailer:
Table of Contents

Advertisement

Quick Links

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

Advertisement

Table of Contents
loading

Related Manuals for Hitachi NR90GC - 3-1/2" Gas Powered Clipped Head Framing Nailer

Summary of Contents for Hitachi NR90GC - 3-1/2" Gas Powered Clipped Head Framing Nailer

  • Page 1 MODEL NR 90GC Hitachi Power Tools TECHNICAL DATA GAS STRIP NAILER NR 90GC SERVICE MANUAL LIST No. E025 Sept. 2005 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
  • Page 2 REMARK: Throughout this 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: Competitors Symbols Utilized Company Name Model Name IMCT Paslode...

  • Page 3: Table Of Contents

    CONTENTS Page 1. PRODUCT NAME ........................... 1 2. MARKETING OBJECTIVE ......................1 3. APPLICATIONS ..........................1 4. SELLING POINTS .......................... 1 5. SPECIFICATIONS .......................... 2 5-1. Specifications ..........................2 5-2. Explanation of the Nailing Action ....................2 5-3. Nail Selection ..........................3 5-4.

  • Page 4: Product Name

    1. PRODUCT NAME Hitachi 90 mm (3-1/2") Gas Strip Nailer, Model NR 90GC 2. MARKETING OBJECTIVE Today, one company has been monopolizing the gas nailer markets. We will enter the largest-scale clipped head (D-head) nailer market with the new Model NR 90GC gas strip nailer to expand our market share. The main features of the Model NR 90GC are as follows: (1) The battery is located at the end of the handle for well balance.

  • Page 5: Specifications

    5. SPECIFICATIONS 5-1. Specifications (1) Gas nailer NR 90GC Model Driving system Reciprocating piston type Weight 3.5 kg (7.7 lbs.) Dimensions 347 mm x 353 mm x 108 mm (Length x Height x Width) (13-21/32" x 13-29/32" x 4-1/4") Spiral spring Nail feed system Nail capacity 37 nails (1 strip)

  • Page 6: Nail Selection

    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 quality.

  • Page 7: Nail Driving Force

    5-4. Nail Driving Force In contrast to a pneumatic nailer, the output energy of a gas nailer cannot be adjusted optionally. However, the output energy is changed because environmental conditions such as ambient temperature, humidity and altitude have an effect on its combustion. Figure 2 shows a comparison between the pneumatic nailers Models NR 90AD and others and the gas nailer Model NR 90GC on the output energy range.

  • Page 8: Comparisons With Similar Products

    6. COMPARISONS WITH SIMILAR PRODUCTS Maker HITACHI Model NR 90GC Weight (tool, battery, fuel cell) 3.5 kg (7.7 lbs.) 3.4 kg (7.5 lbs.) Dimensions 347 mm x 353 mm x 108 mm 310 mm x 343 mm x 110 mm (L x H x W) (12-21/32"...

  • Page 9: Precautions In Sales Promotion

    7. PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Model NR 90GC Nailer by all of our customers, it is very important that at the time of sale the salesperson carefully ensures that the buyer seriously recognizes the importance of the contents of the Handling Instructions, and fully understands the meaning of the precautions listed on the Warning Label attached to each tool.
  • Page 10 For Europe Fuel cell For the U.S.A. and Canada OK Befestigung D-47802 Krefeld, Germany www.okbefestigung.de PATENT PENDING 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). •...

  • Page 11: Related Laws And Regulations

    7-3. Related Laws and Regulations As nailers and staplers are designed to instantaneously drive nails and staples, there is an ever-present danger of misfiring and subsequent possible serious injury. Accordingly, close attention in handling is absolutely necessary at all times. Carefully ensure that the customer is fully aware of the precautions listed in the Handling Instructions provided with each unit.
  • Page 12 Cautions in handling the fuel cell: First Aid: If contents inhaled, move to area with fresh air. Contact a doctor if symptoms persist. If contents come in contact with skin, wash the affected area with soap and warm water then apply skin cream. If contents come in contact with eyes, flush open eyes with water.

  • Page 13: Mechanism And Operation Principle

    The Model NR 90GC is a nailer that drives nails into workpieces with the aid of fuel combustion energy. This is the Hitachi's first gas strip nailer and there is no similarity between the Model NR 90GC and other Hitachi nailers in construction.
  • Page 14 Head section (Cylinder head section) Motor Mount [8] Top Cover [3] Cell Cover [109] Motor [6] Filter [4] Cell Lever [105] Cylinder Head [14] Spark Plug (A) [11] Motor Spring [12] Switch Lever (B) [114] Fan [20] Combustion chamber Chamber [24] Battery [111] Cylinder Ass'y [42]...

  • Page 15: Principle Of Operation

    8-2. Principle of Operation (1) Before nailing Fuel is not charged into the nailer in the initial state. The combustion chamber is released Fuel cell to the atmosphere (Fig. 4). Combustion chamber (2) When nailing Fan [20] 1) Push up the Pushing Lever [64]. Chamber [24] Then the nailer starts operation in the Cylinder Ass'y [42]...
  • Page 16 2) When the Trigger [98] is depressed, the switch in the Trigger [98] contacts the end of Switch Lever (B) [114] and turns on. Then the Switch Lever spark plug in the combustion chamber Spark plug (B) [114] discharges (Fig. 6). Fuel burns and a sudden expansion occurs.
  • Page 17 (4) Discharging and cooling O-ring [15] When the Trigger [98] is released, the Chamber Lock Bar [100] is returned from the Filter [4] position under the Chamber [24] to the original Fan [20] position. Thus the Chamber [24] and the Pushing Lever [64] are placed in the initial Combustion state and sealing by the O-rings [15] and [36]...
  • Page 18 (5) Full sequential action mechanism Switch Press the Pushing Lever [64] against the Lever (B) [114] workpiece and move the Chamber [24] to the uppermost position. Then the nailer operates only Tension when the Trigger [98] is depressed. The nailer Plate [113] does not operate if the pressing amount of the Convex...

  • Page 19: Problems Caused By Improper Handling

    9. TROUBLESHOOTING GUIDE 9-1. Problems Caused by Improper Handling Following table shows the problems that 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. Improper handling Problem Cause...

  • Page 20: Checking The Fuel Cell

    To attach the metering valve to a fuel cell: (1) Separate the metering valve and Insert the stem of fuel cell into the hole of adapter. the cap from the gas cartridge. Stem Adapter Fuel cell Stem Adapter Fuel cell (2) Press forward (stem side) and downward on the front side of the metering valve.
  • Page 21 Problem Inspection method Remedy Possible cause Fuel is The oxygen content of the air A large amount of fuel is Use the nailer in a place where sprayed but is low in a place such as sprayed. the altitude is under 1500 highlands at an altitude of meters.

  • Page 22: Troubleshooting And Correction

    9-2. Troubleshooting and Correction (1) Troubleshooting and correction in the case of gas nailers The mechanism of a gas nailer to produce output is completely different from that of a pneumatic nailer. Following table shows the troubleshooting and correction procedures inherent in gas nailers. Problem Inspection method Remedy...
  • Page 23 The wire must not be pinched when depressing the Trigger [98]. Controller [101]. Controller connector Fig. 16 Motor wire connector Spark plug cable Fig. 17 --- 20 ---...
  • Page 24 Continued Problem Possible cause Inspection method Remedy <Electric section> Continued No combustion No spark occurs. (Check for The Battery [111] is not set Set the Battery [111] occurs. sparking according to "9-3. properly. properly. Checking for Sparking and The Battery [111] is faulty. Replace the Battery [111].
  • Page 25 Spark plug cable Spark plug Clean this area especially. Fig. 18 --- 22 ---...
  • Page 26 (2) Troubleshooting and correction in the case of general-purpose nailers Problem Inspection method Remedy Possible cause <Nails> 1) Nails cannot Magazine is not loaded with Check if the magazine is Use specified nails. be driven. specified genuine nails. normally loaded with Remove the abnormal nails specified nails.
  • Page 27 Problem Inspection method Remedy Possible cause <Output section> Piston bumper is abnormal Pull the nail feeder backward Replace the piston bumper. (dislocated, deformed or and perform idle driving. damaged). Check if the driver blade has returned. O-ring [36] of the cylinder is Reassemble or replace.
  • Page 28 Problem Inspection method Remedy Possible cause 3) Head of a nail Adjuster is improperly Turn the adjuster to the Adjust the adjuster to the driven into a adjusted. lowest position and drive a proper position. workpiece nail. protrudes from the wood Workpiece is very hard.

  • Page 29: Checking For Sparking And Corrective Action

    9-3. Checking for Sparking and Corrective Action The main causes of no combustion are the following five items. 1. The fuel cell is abnormal. (Replace the fuel cell with new one.) 2. The battery is abnormal. (Check the battery.) 3. The Chamber [24] is improperly sealed. (Check the O-rings [15] and [36], and the moving amount of the Pushing Lever [64].) 4.

  • Page 30: Regrinding The Driver Blade

    9-4. Regrinding the Driver Blade The tip of the driver blade should be ground as shown in Fig. 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.

  • Page 31: Disassembly And Reassembly

    Apply oil (Gas Nailer Lubricant) (Code No. 885246) (Code No. 885546) to the areas shown in Fig. 21. When installing the O-rings, be careful not to damage the O-rings and prevent dirt entry. Oil required: Hitachi Gas Nailer Lubricant 8 oz. (250 cc) oil feeder (Code No. 885-246) (Code No. 885-546) Use the cleaner (Code No.

  • Page 32: Oil Application Areas

    Oil application areas O-ring (I.D. 66.27) [36] Mount Sleeve [9] Apply oil entirely. Apply oil entirely. Cylinder Head [14] Apply oil to the diagonally shaded areas. Outside: O-ring groove Cylinder Ass'y [42] Apply oil to the diagonally shaded areas. Inside Outside: O-ring groove O-ring (I.D.

  • Page 33: Grease Application Areas

    Grease application areas Handle (B) [84] Plunger of the trigger switch Plunger of the fan switch Fig. 22 --- 30 ---...

  • Page 34: Disconnection And Reconnection Of Wiring Between Cylinder Head Section And Handle Section

    10-2. Disconnection and Reconnection of Wiring between Cylinder Head Section and Handle Section The Model NR 90GC is comprised of three sections, cylinder head section, housing section and handle section. The wiring between the cylinder head section and the handle section must be disconnected before disassembly and reassembly of each section.
  • Page 35 Spark plug cable Wiring connected to the motor Spark Plug (A) [11] Connector of the motor Top Cover [3] (Do not open excessively.) Washer M5 [2] Hex. Socket Hd. Bolt M5 x 14 [1] Handle section Cylinder head section Housing section Fig.
  • Page 36 (b) Reassembly Reassembly procedures should be followed in the reverse order. Note the following points. When mounting the cylinder 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.

  • Page 37: Disassembly And Reassembly Of Cylinder Head Section

    10-3. Disassembly and Reassembly of Cylinder Head Section (1) Disassembly and reassembly of the Cylinder Head [14], Motor [6] and the related parts [Tools required] Hex. bar wrench (3 mm) Phillips screwdriver Spanner (7 mm (0.276")) x 2 pcs. Roll pin puller (2.5 mm (0.098") dia.) Socket wrench (8 mm (0.314")) (a) Disassembly (See Fig.
  • Page 38 Machine Screw M4 x 6 [28] Motor [6] Roll Pin D2.5 x 25 [7] Rubber Washer [29] Motor Mount [8] Mount Sleeve [9] Shaft Washer [10] Spark Plug (A) [11] Motor Spring [12] Cylinder Head [14] Hex. Socket Set Screw M4 x 5 [31] O-ring (I.D 59.92) [15] Nut M4 [18] Washer M4 [19]...
  • Page 39 (b) Reassembly Disassembly procedures should be followed in the reverse order. Note the following points. Apply designated oil (Code No. 885-546, Code No. 885-246) to the O-ring [15] and the Mount Sleeve [9]. Mount the Mount Sleeve [9] with 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.
  • Page 40 (2) Disassembly and reassembly of the Top Cover [3] and the related parts [Tools required] Roll pin puller (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].
  • Page 41 Hex. Socket Hd. Shaft Ring [26] Bolt M5 x 14 [1] Washer M5 [2] Washer M5 [2] Washer M5 [2] Top Cover [3] Shaft [27] Filter [4] Latch [106] Roll Pin D2 x 8 [107] Spring D3.6 [108] Filter Cover [5] Adapter [30] Cell Rubber [110] Cell Cover [109]...

  • Page 42: Disassembly And Reassembly Of Housing Section

    10-4. Disassembly and Reassembly of Housing Section (1) Disassembly and reassembly of housing section, handle section and pushing lever (Fig. 30) [Tools required] Hex. bar wrench (4 mm) (a) Disassembly Remove the cylinder head section from the main body according to 10-2 and 10-3. Remove the Hex.
  • Page 43 (b) Reassembly Reassembly procedures should be followed in the reverse order. Note the following points. Mount the Plate Sleeve [54] facing the stepped portion to the handle so that the stepped portion fits in the concave portion of the Side Plate [55] (Fig. 31). Check that each lever protruded from the handle section fits in each hole on the side of the handle of the housing section (Fig.
  • Page 44 (2) Disassembly and reassembly of the housing section (Fig. 33) [Tools required] Hex. bar wrench (3 mm (0.118"), 4 mm (0.157")) Spaner (7 mm (0.276") or slender hd. pliers Roll pin puller (3 mm (0.118")) Phillips screwdriver Retaining ring puller for C-type hole Small flat-blade screwdriver (a) Disassembly Remove the Seal Lock Hex.
  • Page 45 Machine Screw M4 x 6 [33] O-ring (I.D. 66.27) [36] Switch Plate [34] Retaining Ring [37] Chamber section Piston Ring [38] Piston [39] Piston Bumper [40] Roll Pin D3 x 32 [25] Cylinder Ass'y [42] Chamber Stop Rubber [41] Muffler [50] Machine Screw M4 x 6 [46] Lead Valve [45]...
  • Page 46 (1) Keep pressing the side of the housing. (2) Push the tip of the cylinder. Output section Fig. 34 Cylinder Ass'y [42] Piston [39] Small flat-blade screwdriver Piston Ring [38] Piston [39] Push in. Push in. Fig. 35 --- 43 ---...
  • Page 47 Remove the Retaining Ring [37] with the retaining ring puller for C-type hole. Insert a finger into the outlet of the Cylinder Ass'y [42] and push the tip of the Piston [39] straight up. Then the Piston [39] can be removed from the Cylinder Ass'y [42].
  • Page 48 (2) Reassembly Reassembly procedures should be followed in the reverse order. Note the following points. Drop the Piston Bumper [40] in the Cylinder Ass'y [42] facing its stepped side inward and push it in until it passes through the stopper portion by means of the handle of a hammer. You feel a click when the Piston Bumper [40] passes through the stopper portion (Fig.
  • Page 49 Split of the Piston Ring [38] Cylinder Ass'y [42] Exhausting direction Split of the Piston Ring [38] Fig. 38 Push lightly. Small flat-blade screwdriver Push lightly. Piston [39] Piston Ring [38] Piston [39] Exhausting direction Chamfered side of the driver blade Fig.
  • Page 50 When mounting the Retaining Ring [37] to the Cylinder Ass'y [42], fit the Retaining Ring [37] in the groove securely facing the split to the no-concave portion of the cylinder. Face the sagged side of the Retaining Ring [37] to the Piston [39] (Figs. 40 and 41). Retaining Ring [37] Cylinder Ass'y [42] Exhausting...
  • Page 51 Apply designated oil to the O-ring sliding surface in the Chamber [24] according to 10-1. Be careful of the mounting direction of Pushing Lever Arms (A) [60] and (B) [62] (Fig. 42). Align the notch of Pushing Lever Arm (A) [60] or (B) [62] with the convex portion of the Pushing Lever Connector [68]. Secure the U-Nut M4 [59] with a spanner (7 mm (0.276")) or slender hd.
  • Page 52 Cylinder Ass'y [42] Chamber [24] Pushing Lever Arm (A) [60] or (B) [62] Split of the Roll Pin D3 x 32 [25] Roll Pin D3 x 32 [25] Pushing Lever Arm (A) [60] or (B) [62] Chamber [24] Fig. 43 Support the Chamber [24] with a pedestal.
  • Page 53 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 Pushing Lever Spring [63] being careful not to remove the Pushing Lever Spring [63] (Fig. 45). Cylinder Ass'y [42] Pushing Lever Spring [63] Convex portion...
  • Page 54 Section A --- A Housing Ass'y [74] Blade Guide [53] Driver blade Cylinder Ass'y [42] Make the Cylinder Plate Cylinder Plate [57] [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 Seal Lock Hex.
  • Page 55 (3) Disassembly and reassembly of Chamber [24] and the related parts (Fig. 47) [Tools required] Hex. bar wrench (3 mm (0.118")) Phillips screwdriver (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.
  • Page 56 (b) Reassembly Fit Gasket (A) [23] in the groove of the Chamber Head [22] and mount it to the Chamber [24]. Do not protrude Gasket (A) [23] from the groove. Be 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].
  • Page 57 (4) Disassembly and reassembly of Housing Ass'y [74] (Fig. 49) Although the Housing Ass'y [74] is supplied in assembly, perform disassembly and reassembly of the Housing Ass'y [74] when replacing the components of the Housing Ass'y [74] singly. [Tools required] Hand press (a) Disassembly Push out the Screw M5 [70] in "A"...

  • Page 58: Disassembly And Reassembly Of Handle Section

    10-5. Disassembly and Reassembly of Handle Section (1) Disassembly and reassembly of handle (A) ass'y and handle (B) ass'y (Fig. 50) The handle section is comprised of handle (A) ass'y and handle (B) ass'y. [Tools required] Hex. bar wrench (3 mm) Phillips screwdriver (a) Disassembly Perform disassembly according to 10-2, 10-3 and 10-4.
  • Page 59 Hex. Socket Hd. Bolt M4 x 18 [127] Tapping Screw (W/Flange) D4 x 20 (Black) [83] Tapping Screw (W/Flange) D4 x 16 (Black) [78] Tapping Screw (W/Flange) D4 x 45 [80] Magazine Guard [128] Nylon Nut M4 [75] Item No. [127] [83] [78]...
  • Page 60 (2) Disassembly and reassembly of Handle (A) [124], nail feeder and the related parts (Fig. 51) [Tools required] Phillips screwdriver Roll pin puller (4 mm (0.157")) (a) Disassembly Remove the Lever Stopper [116] from the trigger of Handle (A) [124] with a hand. Remove the Nail Rail [93] with a hand.
  • Page 61 Nail Rail [93] Handle (A) [124] Lever Stopper [116] Nail feeder ass'y Ribbon Spring [121] Tapping Screw (W/Flange) D5 x 20 (Black) [126] Side Plate [55] Feeder Knob [125] Pushing Lever Stopper [123] Spring D8 [122] Fig. 51 Nail Feeder (A) [112] Nail Feeder (B) [120] Spring [119] Roll Pin D4 x 28 [118]...
  • Page 62 Handle (A) [124] Spring Spring D8 [122] hooking portion Ribbon Spring [121] Do not tilt or pinch the Spring D8 [122] Nail feeder ass'y Pushing Lever Side Plate [55] Stopper [123] Fig. 53 --- 59 ---...
  • Page 63 (b) Reassembly Perform reassembly according to the following procedure. Mount Nail Feeder (A) [112] and the Spring [119] to Nail Feeder (B) [120] and drive the Roll Pin D4 x 28 [118] in "B" direction as shown in Fig. 52 to secure it. Do not protrude the end of the Roll Pin D4 x 28 [118] from Nail Feeder (B) [120].
  • Page 64 (3) Disassembly and reassembly of Handle (B) [84], Controller [101] and the related parts [Tools required] Spanner Hex. bar wrench (4 mm) Phillips screwdriver Roll pin puller (2.5 mm (0.098")) (a) Disassembly (See Fig. 54-2.) Remove the Trigger Spring [97] and the Chamber Lock Bar [100]. Remove the Pin D2.5 [115] and Switch Lever (B) [114].
  • Page 65 Hex. Socket Hd. Bolt M5 x 15 [76] Sleeve [77] Handle (B) [84] Internal Wire (A) [86] Hook ass'y Nylon Nut M5 [92] Prism [96] Switch Mount [81] Nail Rail [93] Trigger Spring [97] Trigger [98] Tapping Screw (W/Flange) D4 x 14 Tapping Screw Roll Pin Controller...
  • Page 66 (b) Reassembly Reassembly procedures should be followed in the reverse order. Note the following points. Be careful of the split direction of the Roll Pin D2.5 x 10 [99] when mounting the Trigger [98] and Internal Wire (A) [86]. Do not damage the plunger of the switch (Fig. 55). Perform wiring of the Controller [101] and Internal Wire (A) [86] as shown in Fig.
  • Page 67 Handle (B) [84] Perform wiring so that no lead wire is placed on this rib and no pinching occurs by the Trigger [98] operation. Position the lead wire at the top. Internal Wire (A) [86] Roll Pin D2.5 x 10 [99] Trigger Spring [97] Lock Bar Trigger [98]...
  • Page 68 Wiring Cover [103] Spring D2.95 [117] Pin D2.5 [115] Switch Lever (B) [114] Tension Plate [113] Flat Hd. Tapping Screw D4 [104] Chamber Lock Bar [100] Magazine Plate [94] Tapping Screw (W/Flante) D4 x 14 [95] Hook ass'y Nylon Nut M5 [92] Sleeve [77] Hang the Magazine Plate [94] on the claw.
  • Page 69 Lock Bar Spring [102] Ring Fig. 58 Switch Lever (B) [114] Tension Plate [113] Fig. 59 --- 66 ---...
  • Page 70 (3) Disassembly and reassembly of hook and the related parts (Fig. 60) [Tools required] Roll pin puller (4 mm (0.157")) Flat-blade screwdriver (a) Disassembly Remove the Roll Pin D3 x 14 [87]. Then the Hook [88], Washer (B) [89] and Spring D12 [90] can be removed from the Bracket [91].
  • Page 71 Split of the Roll Pin D3 x 14 [87] Fig. 61 Do not protrude the Roll Pin D3 x 14 [87] from the Bracket [91]. Bracket [91] Fig. 62 --- 68 ---...

  • Page 72: Inspection And Confirmation After Reassembly

    11. INSPECTION AND CONFIRMATION AFTER REASSEMBLY (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.

  • Page 73: Standard Repair Time (Unit) Schedules

    12. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable 70 min. MODEL Fixed Work Flow NR 90GC Cylinder Head Motor Motor Mount Motor Spring Piston O-ring Spark Plug (A) Piston Ring x 2 O-ring Piston Bumper General Assembly Top Cover Chamber Head Blade Guide Cylinder Filter...
  • Page 74 Hitachi Power Tools LIST NO. E025 GAS TOOL PARTS LIST GAS STRIP NAILER 2005 • • Model NR 90GC (E3)
  • Page 75 PARTS NR 90GC ITEM CODE NO. DESCRIPTION REMARKS USED 949-665 HEX. SOCKET HD. BOLT M5X14 (10 PCS.) 949-424 WASHER M5 (10 PCS.) 885-353 TOP COVER 885-274 FILTER 885-275 FILTER COVER 885-309 MOTOR 885-318 ROLL PIN D2.5X25 885-310 MOTOR MOUNT 885-314 MOUNT SLEEVE 885-320 SHAFT WASHER...
  • Page 76 885-272 ADJUSTER BUSH (S) 885-301 PUSHING LEVER CONNECTOR NAME PLATE 885-304 SCREW M5 885-298 HOUSING 885-307 INSULATOR SHEET HITACHI LABEL 885-362 HOUSING ASS’Y INCLUD. 70-72 876-465 NYLON NUT M4 949-820 HEX. SOCKET HD. BOLT M5X15 (10 PCS.) 878-164 SLEEVE 305-812...
  • Page 77 PARTS NR 90GC ITEM CODE NO. DESCRIPTION REMARKS USED 885-281 SPRING D3.6 885-352 CELL COVER 885-279 CELL RUBBER 324-148 BATTERY EB 714S (W/ENGLISH N.P.) 324-147 BATTERY EB 714S (W/ENGLISH N.P.) 1 FOR USA, CAN 885-323 NAIL FEEDER (A) 885-351 TENSION PLATE 885-348 SWITCH LEVER (B) 885-349...

This manual is also suitable for:

Nr 90gc

Table of Contents