Hitachi NR90GC Support Question

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Question posted by roymackarel on February 13th, 2013

No Spark

Hi Could you tell me what the problem may be. My gun is not sending power to the spark plug

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Related Hitachi NR90GC Manual Pages

Service Manual - Page 1

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

Service Manual - Page 3

... 5 7. Problems Caused by ...9-1. DISASSEMBLY AND REASSEMBLY 28 10-1. Disassembly and Reassembly of Wiring between Cylinder Head Section and Handle Section ...31 10-3. INSPECTION AND CONFIRMATION AFTER REASSEMBLY 69 ... ...6 7-2. STANDARD REPAIR TIME (UNIT) SCHEDULES 70 Assembly diagram for Sparking and Corrective Action 26 9-4. Nail Selection ...3 5-4. Principle of the Nailing...

Service Manual - Page 4

... in one hour 2-actioned nail feeding --- 1 --- APPLICATIONS Floor and framing Truss build-up, window build-up Subflooring and roof decking Wall sheathing Mobile home and modular housing construction 4. 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. 1. MARKETING OBJECTIVE Today, one...

Service Manual - Page 6

... of 35 degrees which are the same as specified in Fig. 1. Paper tape collated strip nails D-head (clipped head) nails Minimum Maximum 6.8 mm (0.266") 7.7 mm (0.303") 90 mm (3-1/2") 50 mm (2") 3.0... Paper tape Fig. 1 Dimensions of nails and subsequent damage to the nailer. The Model NR 90GC utilizes D-head (clipped head) nails collated at an angle of nails. Use of such nails will...

Service Manual - Page 8

...Single action Hook Feeder Provided 2-actioned nail feeding Battery voltage Charge 7.2 V 1 h Applicable nails Dia. (Clip head) Length 3.0 mm --- 3.3 mm (0.120" --- 0.131") 50 mm --- 90 mm (2" --- 3-1/2")...mm (12-3/16" x 13-1/2" x 4-11/32") 37 nails (1 strip) Rear loading Tool not required Rubber Single action Provided 2-actioned nail feeding 6 V 2 h 2.9 mm --- 3.3 mm (0.113" --- 0.131") 50 ...

Service Manual - Page 12

... cap of 50ûC (120ûF). --- Do not puncture or open flame and sparks. Goods must be discharged. Contact a doctor if irritation continues. Keep out of reach...; (2) Push the extended stem vertically to discharge remaining fuel gas; (3) After the remaining fuel gas has been discharged, to discharge remaining propellant gas, strongly push the stem down, vertically, in well-ventilated ...

Service Manual - Page 13

... chamber in construction. The construction of a pneumatic nailer. Its principle of operation is at the driving unit. Head section (Cylinder head section): This section is completely different from the fuel...battery, trigger switch and fan switch. This is the Hitachi's first gas strip nailer and there is a spark plug beside the fan. 8. The nails are described below. The fan ...

Service Manual - Page 14

Output section Head section (Cylinder head section) Filter [4] Cylinder Head [14] Spark Plug (A) [11] Motor Spring [12] Fan [20] Combustion chamber Chamber [24] Motor Mount [8] Top Cover [3] Motor [6] Cell Cover [109] Cell Lever [105] Switch Lever (B) [114] Cylinder ...

Service Manual - Page 16

...(B) [114] and turns on. Chamber Lock Bar [100] Fig. 7 --- 13 --- Because combustion gas is partially released into the atmosphere through the Lead Valve [45], the pressure of the upper portion of ..., the switch in the Trigger [98] contacts the end of fuel is almost completed. Then the spark plug in the Cylinder Ass'y [42]. Because the Lead Valve [45] is a nonreturn valve, no air...

Service Manual - Page 23

Controller connector Fig. 16 Motor wire connector Fig. 17 --- 20 --- The wire must not be pinched when depressing the Trigger [98]. Spark plug cable Controller [101].

Service Manual - Page 24

... from spark plug (A). Replace the Battery [111]. Clean the Filter [4] (Fig. 13). Do not use the nailer at high speed. Clean spark plug (A) ...spark plug cable is clogged. Check the outside air temperature and the altitude are insufficient. Position the wire correctly (Fig. 16). Discharging and cooling are insufficient. The wire near the Trigger [98] is no problem...

Service Manual - Page 25

Fig. 18 --- 22 --- Spark plug cable Spark plug Fan Clean this area especially.

Service Manual - Page 29

... with new one.) 2. Spark plug cable Cylinder Head [14] Spark Plug (A) [11] Check whether sparking occurs at this area or not. DISASSEMBLY AND REASSEMBLY".) Checking and corrective action 1. Replace Spark Plug (A) [11]. 4. Disconnect the spark plug cable from the spark plug (Fig. 19) as a result of no sparking is explained below. (Disassemble the nailer according to determine the...

Service Manual - Page 31

...1.0 0.3 (10 3, 0.7 0.2) 1.8 0.4 (18 4, 1.3 0.3) 1.0 0.2 (10 2, 0.7 0.1) --- 28 --- Oil required: Hitachi Gas Nailer Lubricant 8 oz. (250 cc) oil feeder (Code No. 885-246) (Code No. 885-546) Use the cleaner... Machine Screw M4 x 6 28], [33], [46] Nut M4 18] Spark Plug (A 11] Tightening torque N•m (kgf•cm, ft-lb) 3.4 0.7... tighten the screw of the head securely before driving nails. 10...

Service Manual - Page 34

...Tools required] Hex. Bolt M5 x 14 [1] and the Washer M5 [2] then open the Top Cover [3]. (Do not open the Top Cover [3] excessively. Do not yank the cable. Remove the connector from the two wires coming from Spark Plug (A) [11]. The wiring between Cylinder Head... of the rubber cap. Cylinder head section Four bolts Hanging mechanism Spark plug cable (One thick red cable) Housing section...

Service Manual - Page 35

Socket Hd. Spark Plug (A) [11] Spark plug cable Wiring connected to the motor Connector of the motor Cylinder head section Housing section Top Cover [3] (Do not open excessively.) Washer M5 [2] Hex. Bolt M5 x 14 [1] Handle section Fig. 24 --- 32 ---

Service Manual - Page 37

... [12]. CAUTION: Do not deform the Fan [20]. --- 34 --- 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. Remove the Hex. bar wrench. Remove Spark Plug (A) [11] with a roll pin puller. Then remove the Motor [6] and the Rubber Washer [29...

Service Manual - Page 38

Roll Pin D2.5 x 25 [7] Spark Plug (A) [11] Machine Screw M4 x 6 [28] Motor [6] Rubber Washer [29] Motor Mount [8] Mount Sleeve [9] Shaft Washer [10] Motor Spring [12] Cylinder Head [14] Hex. Socket Set Screw M4 x 5 [31] Fig. 26 O-ring (I.D 59.92) [15] Nut M4 [18] Washer M4 [19] Fan [20] Washer M4 [19] Nut M4 [18] --- 35 ---

Service Manual - Page 73

... MODEL Fixed 10 20 30 40 50 NR 90GC Work Flow General Assembly Cylinder Head Motor Motor Mount Motor Spring Fan Spark Plug (A) O-ring Piston O-ring Piston Ring x 2 Piston Bumper Top Cover Filter Filter Cover Pushing Lever Pushing Stopper Chamber Head Blade Guide Gasket (A) Side Plate Chamber Cylinder Plate Housing Ass'y Pushing Lever Arm...

Service Manual - Page 75

...1 8 885-310 MOTOR MOUNT 1 9 885-314 MOUNT SLEEVE 1 10 885-320 SHAFT WASHER 1 11 885-333 SPARK PLUG (A) 1 12 885-319 MOTOR SPRING 1 13 949-757 HEX. SOCKET SET SCREW M4X5 2 32 885-297 CHAMBER ...SOCKET HD. CODE NO. 1 949-665 DESCRIPTION NO. BOLT M4X16 (10 PCS.) 4 22 885-294 CHAMBER HEAD 1 23 885-295 GASKET (A) 1 24 885-296 CHAMBER 1 25 884-975 ROLL PIN D3X32 2 26 880...