Hitachi NV50AA Installation Guide
Contents
1. Drain air line filter daily Prevent accumulation of moisture Open manual petcock and dirt Keep lubricator filled Keep the Nailer lubricated Fill with Hitachi pneumatic tool lubricant Clean Pitter element then biow Prevent clogging of filter with dirt Follow manufacturer s instructions air through filter in direction opposite to normal flow Clean magazine and feeder Prevent a jam Blow clean daily mechanism efficient Nailer operation into the Nailer tank Operator troubleshooting Most minor problems can be resolved quickly and easily using the table below If problems persist contact a Hitachi authorized service center for assistance PROBLEM CHECK METHOD CORRECTION Nailer operates but no nail is Open nail guide Check for a jam driven Check collating plastic for Feed nails breakage Check for proper nails Use only recommended nails Check function of feeder per Clean and lubricate page 14 Weak drive Check air pressure Increase air pressure Do not Slow to cycle exceed 120 psi 8 3 bar 8 5kgf cm Driver blade worn Piston O ring worn or damaged Contact Hitachi for replacement Use Hitachi pneumatic tool lubricant Drives too deep Check air pressure Reduce air pressure Adjust 70 120 psi Skipping nails Intermittent feed Check for proper nails Use only recommended nails Check function of feeder per page 14 Clean and lubricate Use Hitachi pneumatic tool l2. Nail Halder 84 876 705 Hexagon Socket Hd Screw M5x10 85 876 760 88 876 706 Nail Guide Shaft A Bumper Collar 89 949 431 Bolt Washer 90 876 680 Stopper Bolt Thrust Washer Nai Guide Nylon Nut 91 876 686 92 876 677 93 874 780 94A 878 312 HITACHI Label Warning Label 95 878 184 98 949 665 500 944 458 Hexagon Socket Hd Bolt M5X14 Allen Wrench Allen Wrench iM i l 944 459 875 769 BE Eye Protector Parts are subject to change without any obligation on the part of the HITACH due to improvements NV5OAA Code No Part Name 877 941 Push Lever G 58 949 555 Nut M5 53 949 240 Machine Screw M5 1B 60 872 971 Retaining Ring E Type For D3 Shaft 877 150 Stopper Pin 877 149 Stopper Spring 877 151 Magazine Stopper 945 255 U Nut 877 146 Magazine 877 152 Hinge Pin 877 147 Magazine Cover 877 138 Guard 877 145 Guard Washer 949 237 Machine Screw 876 7465 Nylon Nut 877 946 Nose Ass y B77 143 Main Nail Stopper 876 681 Main Stopper Spring 877 148 Sleeve 877 141 Holder Spring 877 140 1 Nail Holder 875 249 Thrust Washer L 949 453 Spring Washer 986 120 Machine Screw W Sp Washer M4x 40 876 682 Lock Shaft 949 776 Roll Pin D3x 10 877 374 Guide Lock 877 372 Spring JL 876 705 Hex
3. supply 26 27 28 1 SAFETY Continued DISCONNECT AIR HOSE FROM NAILER WHEN 1 doing maintenance and inspection 2 clearing a jam 3 it is not in use A leaving work area 5 moving it to another location and 6 handing it to another person Never attempt to clear a jam or repair the Nailer unless you have disconnected air hose from the Nailer and removed ail remaining fasteners from the Nailer The Nailer should never be left unattended since people who are not familiar with the Nailer might handle it and injure themselves STAY ALERT Watch what you are doing Use common sense Do not operate the Nailer when you are tired The Nailer should never be used by you if you are under the influence of alcohol drugs or medication that makes you drowsy HANDLE NAILER CORRECTLY Operate the Nailer according to this Manual Never allow the Nailer to be operated by children individuals unfamiliar with its operation or unauthorized personnel 29 30 31 32 NEVER USE NAILER FOR APPLICATIONS OTHER THAN THOSE SPECIFIED IN THIS MANUAL HANDLE NAILER CAREFULLY Because of high air pressure in the Nailer cracks in the surface are dangerous To avoid this do not drop the Nailer or strike the Nailer against hard surfaces and do not scratch or engrave signs on the Nailer Handle the Nailer carefully MAINTAIN NAILER WITH CARE Keep the Nailer clean and lubricated for better and safer perform
4. 16 IMPORTANT INFORMATION READ AND UNDERSTAND ALL OF THE OPERATING INSTRUCTIONS SAFETY PRECAUTIONS AND WARNINGS IN THE INSTRUCTION MANUAL BEFORE OPERATING OR MAINTAINING THIS NAILER Most accidents that result from the operation and maintenance of Nailers are caused by the failure to observe basic safety rules or precautions An accident can often be avoided by recognizing a potentially hazardous situation before it occurs and by observing appropriate safety procedures Basic safety precautions are outlined in the SAFETY section of this Instruction Manual and in the sect ons which contain the operation and maintenance instructions Hazards that must be avoided to prevent bodily injury or machine damage are identified by DANGERS and WARNINGS on the Nailer and in this Instruction Manual Never use this Nailer for applications other than those specified in this Instruction Manual DEFINITIONS OF SIGNAL WORDS DANGER indicates an imminently hazardous situation which if not avoided wiil resuit in death or serious injury WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury or l may cause machine damage NOTE emphasizes essential information SAFETY IMPORTANT SAFETY INSTRUCTIONS FOR USING NAILERS READ ALL INSTRUCTIONS A DANGER 1 KE ALWA
5. S 12 Trigger 875 642 Safety Plunger B 43 877 331 Gasket D Valve Packing Urethane Ball B 45 875 637 46 875 645 47 875 644 Valve Plate 877 335 Trigger Valve Bushing Trigger Plunger 878 121 50C 878 311 949 457 52 872 035 Cap Hexagon Socket Hd Bolt M5x 18 Dust Cap 53 876 676 Safety Spring 875 650 Safety Bolt 55A 876 763 56 Push Lever G M5 949 555 Nut 949 765 Hexagon Socket Hd Bolt 876 696 Safety Guard M5x 12 E 949 819 Hexagon Socket Hd Bolt Magazine Lock Spring Magazine Stopper 60 876 703 61 876 702 62 876 743 876 742 Collar M5x10 Magazine Primary Coda No Part Name Q ty 876 205 Washer 3 65 949 664 Hexagon Socket Hd Bolt M5x30 1 66 949 662 Hexagon Socket Hd Bolt M5x25 1 876 661 68 876 695 Feed Piston Cover Gasket E 69 873 095 O ring P 16 70 876 692 949 551 72 876 693 Feed Piston Roil Pin Feed Spring 73A 877 947 Nylock Hex Socket Hd Bolt M8 X20 74 877 143 Main Nail Stopper Sub Nail Stopper Main Stopper Spring 876 685 Sub Stopper Spring Lock Shaft 79 877 374 Guidelock 1 Spring 80 877 372 81 876 741 2 82 876 701 Magazine Ass y Holder Spring
6. allowed to re contact the workpiece following recoil an unwanted fastener will be driven in order to avoid this undesirable double fire 1 do not push the Nailer on the workpiece with strong force 2 take the Nailer completely away from the workpiece using recoil and keep the push lever away from the workpiece until the next desirable shot and 3 pull the trigger and release it QUICKLY when performing intermittent operation trigger fire DO NOT DRIVE FASTENERS INTO THIN BOARDS OR NEAR CORNERS AND EDGES OF WORKPIECE The fasteners can be driven through or away from the workpiece and hit someone NEVER DRIVE FASTENERS FROM BOTH SIDES OF A WALL AT THE SAME TIME The fasteners can be driven into and through the wall and hit a person on the opposite side CHECK FOR LIVE WIRES Avoid the risk of severe electrical shock by checking for live electricai wires that may be hidden by walls floors or ceilings Turn off the breaker switch to ensure there are no live wires NEVER CARRY NAILER BY HOSE DO NOT OVERREACH Keep proper footing and balance at all times NEVER USE NAILER WHICH IS DEFECTIVE OR OPERATING ABNORMALLY If the Nailer appears to be operating unusually making strange noises or otherwise appears defective stop using it immediately and arrange for repairs by a Hitachi authorized service center DO NOT DISCONNECT AIR HOSE FROM NAILER WITH FINGER ON TRIGGER The Nailer can fire when re connected to an air
7. as a power source for this Nailer O Air compressors used to supply compressed air to this Nailer must comply with the requirements of the latest version of ANSI Standard B19 3 Safety Standard For Compressors For Process Industries O Moisture or oi in the air compressor may accelerate wear and corrosion in the Nailer Drain daily 2 Filter Regulator Lubricator O Use a regulator with a pressure range of 0 120 psi 0 8 3 bar 0 8 5 kgf cm O Filter regulator lubricator units supply an optimum condition for the Nailer and extend the Nailer life These units should always be used Filter en The filter removes moisture and dirt mixed in compressed air Drain daily unless fitted with an automatic drain Keep the filter clean by regular maintenance Regulator The regulator controls the operating pressure for safe operation of the Nailer Inspect the regulator before operation to be sure it operates properly Lubricator The lubricator supplies an oil mist to the Nailer Inspect the lubricator before operation to be sure the supply of lubricant is adequate Use Hitachi pneumatic tool lubricant Den T Nailer Side ipnnnm Filter Lubricator ef 3 Air hose Air hose must have a minimum working pressure rating of 150 psi 10 4 bar 10 6 kgf cm or 15096 of the maximum pressure produced in the system whichever is higher 4 Hose coupling O The Nailer can be installed as follows Remove the du
8. do not depress push lever and 3 keep Nailer pointed downward 1 Press the magazine stopper and open the magazine cover Magazine Stopper Magazine Cover 2 Place the nail coil in the magazine Insert the first nail into the magazine opening Magazine Opening 3 Close the magazine cover 4 Grip the nail guide and knob with finger Press down the knob and swing the nail guide open b CD Uncoil enough nails to reach the main feeder Insert the first nail between the two pawls of main feeder Fit the nail heads in the guide slot Driving Hole First Nail Guide Slot Nail Guide Main Feeder NOTE Be careful not to insert the first nail into the driving hole Otherwise the nail guide will not close correctly 4 Swing the nail quide closed 6 Lock the knob completely The Nailer is now ready to operate NAILER OPERATION Read section titled SAFETY pages 4 6 A DANGER e e Always wear oye protector A WARNING e Never point Nailer toward yourself or anyone else e Never carry with finger on trigger Remove finger from trigger when not driving nails Never place your hands or feet closer than 8 inches from firing head when using Do not drive nails on top of other nails or with Mailer at too steep of an angle nails can ricochet and hurt someone In order to avoid double fire 1 do not push Nailer on workpiece with strong force 2 tak
9. from those on your own Nailer NAME OF PARTS lt VH 650 gt Exhaust Cover Trigger Piston Piston O ring Body Cap Driver Blad i river Blade Air Plug Sold separately Magazine Stopper Nose 77 Main Feeder Sub Feeder Magazine Assembiy Magazine Cover Push Lever Section A A Outlet Firing Head Nail Holder Nail Guide Main Nail Stopper Main Feeder Feed Spring Feed Piston NV5OAA Piston Exhaust Cover Trigger Piston O ring 9 Body Cap Air Plug Sold separately Driver Blade mir ji Magazine Stopper Main Feeder Magazine Assembly ain Fee Sub Feeder Magazine Cover Push Lever Section A A Outlet Firing Head Nail Holder 9 Main Nail Stopper Main Feeder Feed Spring Feed Piston M CC Main Feeder O ring Spring SPECIFICATIONS VH 650 NV5OAA Operating pressure 70 120 psi 4 9 8 3 bar 5 8 5 kgf cm Dimensions T 10 11 32 x11 3 32 x4 13 16 9 27 32 X9 13 16 x 5 3 32 Length X Height X Width 263mmx 282mm x 122mm 250mmx249mmx 129mm Weight 6 6 Ibs 3 kg 4 2 Ibs 1 9 kg Nail capacity 300 385 nails 1 coil 385 nails 1 coil 047 fF cycle at 100 psi 035 f cycle at 100 psi Air consumption 1 3 Itr cycle at 6 9 bar 99 Itr cycle at 6 9 bar 1 3 Itr cycle at 7 kgf cm d 99 Itr cycle at 7 kgf cm Air inlet 3 8 NPT Thread NAIL SELECTION Only nails shown in the Tabl
10. not connect dt air hose x 2 Adjust the air pressure to 70 psi 4 9 bar 5 kgf cm Connect the air hose Do not oad any nails in the Nailer THE NAILER MUST NOT LEAK AIR Hold the Nailer downward and puli the trigger ADJUSTING AIR PRESSURE A WARNING eo QV e Do not exceed 120 psi 8 3 bar 8 5 kgf cm CT THE NAILER MUST NOT OPERATE Pull Trigger Adjust the air pressure at recommended operating pressure 70 120 psi 4 9 8 3 bar 5 8 5 kgf cm2 according to 3 With finger off the trigger depress the push lever against the workpiece C THE NAILER MUST NOT OPERATE Depress Push Lever Do not pul Trigger 4 Without touching the trigger depress the push lever against the workpiece Pull the trigger C THE NAILER MUST OPERATE 5 With the Nailer off the workpiece pull the trigger Depress the push lever against the workpiece C THE NAILER MUST OPERATE 6 If no abnormal operation is observed you may load nails in the Nailer Drive nails into the workpiece that is the same type to be used in the actual application O THE NAILER MUST OPERATE PROPERLY the length of nails and the hardness of workpiece The correct air pressure is the lowest pressure which will do the job Using the Nailer at a higher than required air pressure unnecessarily over stresses tha Nailer LOADING NAILS A WARNING When loading nails into Nailer 1 do not depress trigger 2
11. HITACHI INSTRUCTION MANUAL AND SAFETY INSTRUCTIONS FOR NAILER MODEL VH 650 NV 50AA NV5BOAA A DANGER Improper and unsafe use of this Nailer will result in death or serious injury This Manual contains important information about product safety Read and understand this Manual before operating the Nailer Keep this Manual available for others before they use the Nailer CONTENTS Page IMPORTANT INFORMATION 3 DEFINITIONS OF SIGNAL WORDS s sees e 3 SAFETY IMPORTANT SAFETY INSTRUCTIONS FOR USING NAILERS 44 IMPORTANT SAFETY INSTRUCTIONS FOR USING VH 650 NV5OAA COIL NAILER 6 EMPLOYER S RESPONSIBILITIES esuusesessess 6 OPERATION NAME OF PARTIE 7 SPECIFICATIONS 0 ccc cee ee ehh aman 8 NAIL SELECTION seeeee ce eee IH m m nnns B ACCESSORIES e B STANDARD ACCESSORIES e E OPTIONAL ACCESSORIES eee ees 9 APPLICATIONS sssssssesse sem aaa g BEFORE OPERATION 0 cece RI 9 WORKING ENVIRONMENT A H AIR SUPPLY e nnn 9 LUGOICATION Ime 10 COLD WEATHER CARE 10 TESTING THE NAILER esses II 10 ADJUSTING AIR PRESSURE essere 11 LOADINGNAILS III n 11 NAILER OPERATION 0 0 cece ese 12 METHODS OF OPERATION e 12 MAINTENANCE MAINTENANCE AND INSPECTION e TA SERVICE AND REPAIRS 0 cece cece eect eee eee ees 14 PARTS LUST tenets
12. YS WEAR EYE PROTECTOR 2 When operating the Nailer always wear eye protector and make sure others in work area wear eye protector too Eye protector must conform to the requirements of American National Standards institute ANSI ZB7 1 and provide protection against flying particles both from the front and side The employer must enforce the use of eye protector by the Nailer operator and others in work area NEVER USE BOTTLED GASES Never use oxygen combustible gases or any other bottled gases as a e power source for the Nailer Use of the above gases is dangerous as the Nailer will explode Use only clean dry regulated compressed air A WARNING 3 DO NOT EXCEED 120 psi r Le E 3 4 NEVER POINT NAILER TOWARD YOURSELF OR ANYONE ELSE Always assume the Nailer contains fasteners Never point the Nailer toward yourself or anyone else whether it contains fasteners or not If fasteners are mistakenly driven it can lead to severe injuries Never engage in horseplay with the Nailer Respect the Nailer as a working implement Do not exceed maximum recommended air pressure 120 psi 8 3 bar 8 5 kgf cm Never connect the Nailer to pressure which potentially exceeds 200 psi 13 7 bar 14 kgf cm as the Nailer can burst NEVER CARRY WITH FINGER ON TRIGGER Remove finger from trigger when not driving fasteners Never carry the Nailer with finger on trigg
13. agon Socket Set Screw M5X10 877 136 Feed Piston Cover 877 137 Gasket E 873 095 O ring P 16 876 692 Feed Piston 877 144 Feed Spring 877 826 Feeder Shaft Ring 876 716 Nail Guide Shaft A Ass y 876 879 Sub Nail Stopper _ 876 685 Sub Stopper Spring 877 134 Nail Guide 877 135 Nail Guide Cover amp amp Machine Screw M4x6 1877 133 Magazine ss y 872 035 Dust Cap 2 1878 184 Warning Label 101 877 942 Head Cap Rubber 103 878 181 Nylock Hex Socket Hd Bolt Mbx16 Part Name Hexagon Socket Hd Bolt M5X 25 949 454 Spring Washer M5 3 1876 179 Top Cover _ 4 949 757 Hexagon Socket Hd Bolt Mb5x20 5A 880 275 Exhaust Cover B MM 876 712P Gasket F 876 713P Gasket G 878 417 Exhaust Valve 876 711P Head Cap B 876 174 Piston O ring 877 127 Piston 876 161 O ring S65 877 126 Cylinder O ring D 876 168 Cylinder Plate 876 632 Cylinder 876 167 Cylinder Ring 876 172 Cylinder Spring 877 123 Cylinder O ring iA 20 1877 122 Cylinder Guide 21 877 124 Cylinder O ring B 22A 876 709P Body B 71 IQ 23 877 125 Cylinder Q ring 4C 25A 878 359 i Piston Bumper 27 876 673 Gasket A 28 1876 717 Main Feeder Sp
14. ance USE ONLY PARTS ACCESSORIES OR FASTENERS SUPPLIED OR RECOMMENDED BY HITACHI Unauthorized parts accessories or fasteners may void vour warranty and can lead to malfunction and resulting injuries Only service personnel trained by Hitachi distributor or employer shall repair the Nailer Do not modify the Nailer without the written approval of Hitachi IMPORTANT SAFETY INSTRUCTIONS FOR USING VH 650 NV50AA COIL NAILER A WARNING CLOSE NAIL GUIDE AND DO NOT OPEN IT DURING OPERATION If driving fasteners with the nail guide open the fasteners can be driven away from the workpiece 2 DO NOT OPEN MAGAZINE FACING DOWNWARD WHILE LOADING FASTENERS The fasteners can fall down and result in personal injury EMPLOYER S RESPONSIBILITIES Ensure that this INSTRUCTION MANUAL is available to operators and personnel performing maintenace Ensure that Nailers are used only when operators and others in work area are wearing EYE PROTECTOR Enforce the use of EYE PROTECTOR by operators and others in work area 4 5 6 Keep Nailers in safe working order Maintain Mailers properly Ensure that Nailers which require repair are not further used before repair SAVE THIS MANUAL AND KEEP IT AVAILABLE FOR OTHERS OPERATION NOTE The information contained in this Manual is designed to assist you in the safe operation of the Nailer Some illustrations in this Manual may show details or attachments that differ
15. e Nailer away from workpiece using recoil 3 release trigger quickly when performing trigger fire Do not drive nails into thin boards or near corners and edges of workpiece Nails can be driven through or away from workpiece and hit someone Never drive nails from both sides of a wall at the same time Nails can be driven into and through the wall and hit a person on the opposite side Never use Nailer which is defective or operating abnormally Do not use Nailer as hammer Disconnect air hose from Nailer when 1 it is not in use 2 leaving work area 3 moving it to another location and 4 handing it to another person NOTE Be careful that the fina nail can be dropped or driven at an irregular angle METHODS OF OPERATION This Nailer is equipped with the push lever and does not operate unless the push lever is depressed upward position There are two methods of operation to drive nails with this Nailer Thev are 1 Intermittent operation Trigger fire 2 Continuous operation Push lever fire 1 Intermittent operation Trigger fire D Position the nail outlet on the workpiece with finger off the trigger 2 Depress the push lever firmly until it is completely depressed 3 Pull the trigger to drive a nail Remove finger from the trigger To drive another nail move the Niler along the workpiece and repeat this procedure 2 Continuous operation Push lever fire Pull the tri
16. e below can be driven with this Nailer Nails are collated and coiled as shown in the right figure Dimensions of nails 2 1 2 65 mm ACCESSORIES A WARNING Accessories other than those shown below can lead to malfunction and resulting injuries STANDARD ACCESSORIES Model D Eye protector Allen wrench for M6 screw Allen wrench for M5 Screw Allen wrench for M4 screw D Allen wrench for M3 screw OPTIONAL ACCESSORIES sold separately O Pneumatic Tool Lubricant B oz 25 cc oil feeder 4 oz 120 cc oii feeder 1 quart 1 Itr can Code No 877153 Code No 874042 Code No 876212 NOTE Accessories are subject to change without any obligation on the part of HITACHI APPLICATIONS Construction work such as wail sheathing roof decking subflooring Mobile and modular home construction BEFORE OPERATION Read section titled SAFETY pages 4 6 Make sure of the followings before operation WORKING ENVIRONMENT A WARNING No flammable gas liquid or other flammable objects at worksite a Clear the area of children or unauthorized personnel AIR SUPPLY A DANGER 9 Never use oxygen combustible gases or any other bottled gases A WARNING Never connect Nailer to pressure which potentially exceeds 200 psi 13 7 bar 14 kgf cm e Never use non relieving coupler on Nailer 1 Power source O Use only clean dry regulated compressed air
17. er since you could drive a fastener unintentionally and injure yourself or someone else Always carry the Nailer by the handle only ALWAYS WEAR EAR AND HEAD PROTECTOR Always wear ear protector to protect your ears from loud noise Always wear head protector to protect your head from flying objects 7 10 11 12 13 14 15 STORE NAILER PROPERLY When not in use the Nailer should be stored in a dry place Keep out of reach of children Lock the storage area KEEP WORK AREA CLEAN Cluttered areas invite injuries Clear ail work areas of unnecessary tools debris furmture etc NEVER USE IN PRESENCE OF FLAMMABLE LIQUIDS OR GASES The Nailer produces sparks during operation Never use the Nailer in sites containing lacquer paint benzine thinner gasoline gases adhesive agents and other materials which are combustible or explosive KEEP VISITORS AWAY Do not let visitors handle the Nailer All visitors should be kept safely away from work area DRESS PROPERLY Do not wear loose clothing or jewelry as they can be caught in moving parts Rubber gloves and nonskid footwear are recommended when working outdoors Wear protective hair covering to contain long hair NEVER USE NON RELIEVING COUPLER ON NAILER If a non relieving coupler is used on the Nailer the Nailer can remain charged with air after disconnecting and thus will be able to drive a fastener even after disconnecting The Nailer a
18. gger with the Nailer off the workpiece Depress the push lever against the workpiece to drive a nail Move the Nailer along the workpiece with a bouncing motion Each depression of the push lever will drive a nail As soon as the desired number of nails have been driven remove finger from the trigger Previously pull the trigger NOTE Always handle nails and package carefuily If nails are dropped collating plastic may be broken which will cause un feeding In this case load nails into the Nailer again After nailing 1 disconnect air hose from the Nailer 2 remove all nails from the Nailer 3 supply 2 3 drops of Hitachi pneumatic tool lubricant into the air plug on the Nailer and 4 open the petcock on the air compressor tank to drain any moisture MAINTENANCE NOTE The information contained in this Manual is designed to assist you in the safe maintenance of the Nailer Some illustrations in this Manual may show details or attachments that differ from those on your own Nailer MAINTENANCE AND INSPECTION Read section titled SAFETY pages 4 6 A WARNING Disconnect air hose and remove all nails from Nailer when 1 doing maintenance and inspection and 2 clearing a jam 1 Inspecting the feeders DISCONNECT AIR HOSE D Clean the knob sliding part Lubricate it with Hitachi pneumatic tool lubricant Disconnect air hose Open the nail guide and remove dust L
19. nd air hose must have a hose coupling such that all pressure is removed from the Nailer when the coupling joint is disconnected CHECK PUSH LEVER BEFORE URE Make sure the push lever operates properly The push lever may be called Safety Never use the Nailer unless the push lever is operating properly otherwise the Nailer could drive fastener unexpectedly Do not tamper with or remove the push lever otherwise the push lever becomes inoperable KEEP ALL SCREWS AND COVERS TIGHTLY IN PLACE Keep all screws and covers tightly mounted Check their condition periodically Never use the Nailer if parts are missing or damaged DO NOT LOAD FASTENERS WITH TRIGGER OR PUSH LEVER DEPRESSED When loading fasteners into the Nailer or when connecting the air hose 1 do not depress the trigger 2 do not depress the push lever and 3 keep the Nailer pointed downward 16 17 18 19 20 21 22 23 24 25 KEEP HANDS AND FEET AWAY FROM FIRING HEAD DURING USE Never place your hands or feet closer than 8 inches from the firing head A serious injury can result if the fasteners are deflected by the workpiece or are driven away from the point of entry PLACE NAILER PROPERLY ON WORKPIECE Do not drive fasteners on top of other fasteners or with the Nailer at too steep of an angle the fasteners can ricochet and hurt someone TAKE CARE OF DOUBLE FIRE DUE TO RECOIL tf the push lever is unintentionally
20. pan
21. ring A 1 nanan 29 949 551 Roll Pin D2 5x10 _30 876 681 Sub Feeder Spring 31 Feeder Shaft 32 876 688 Main Feeder 33 949 3821 j Hexagon Socket Hd Bolt M5x16 34 876 707 Sub Feeder 35 949 242 Machine Screw M5x22 l 36 876 205 Washer 378 878 182 HITACHI Label 38 877 131 i Gasket D 39A 880 036 Cap 41 875 643 Piunger Spring 42 874 820 Plunger O ring 43A 878 122 Plunger A 44B 878 266 Valve Bushing 45 875 638 O ring 12 876 203 Trigger 875 642 Plunger B 875 637 Valve Packing 875 645 Urethane Bail B 875 644 Valve Plate 51A 877 335 Trigger Valve Bushing 52A 878 121 Trigger Plunger 53 949 866 Roll Pin 54 306 867 Nameplate 1 1 T 1 p se se sch sch sch sch H 1 1 I I a eh Kj wa we ey Al Bf a sch 1 i H 0 f zb lbhM 503 943 277 Allen Wrench 3mm f b es 504 944 458 Allen Wrench 4mm LJ 55 875 650 Bolt 56 876 676 Spring Parts are subject to change without any obligation on the part of the HITACHI due to improvements Hitachi Koki Co Ltd Nippon Bldg 6 2 Ohtemachi 2 chome Chiyoda ku Tokyo 100 Japan 412 Code No C99067261 A Printed in Ja
22. st seal placed at the air inlet install a 3 8 NPT male plug at the air inlet A Dust Cap 3 8 NPT Male Plug A female coupler must be on the air hose The hose coupling male plug female coupler must remove all pressure from the Nailer when disconnected Never use a non relieving coupler on the Nailer 5 Air consumption Using the Air consumption table and the Air compressor size formula find a correct compressor size Air consumption table psi 80 Operating pressure bar 5 5 kgf cm 5 6 lun 029 ft cycle WW 650 82 Air consumption Itr cycle r cycle I NV5OAA 025 l C71 Air compressor size formula Amount of air required number of Nailers Xaverage nails driven each minute per Nailer Xair consumption at given air pressure Xsafety factor always 1 2 Example 2 Nailers VH 650 operating at 700 psi driving 30 nails per minute Amount of air required 2xX30X 047 1 3 X1 2 3 4 CFM ft min 94 Itr min After making the calculations as shown above you should find a compressor providing 3 4 CFM of air that is required LUBRICATION It is important that the Nailer be properly lubricated Without proper lubrication the Nailer will not work properly and parts will wear prematurely Use Hitachi pneumatic tool lubricant Do not use detergent oil or additives These lubricants will harm the O rings and other rubber parts This will cause the Nailer to malfunction o Fi
23. ter regulator lubricator units should always be used Keep the lubricator filled with Hitachi pneumatic tool lubricant If a lubricator is not available supply 2 3 drops of Hitachi pneumatic tool lubricant into the air plug on the Nailer twice a day COLD WEATHER CARE Do not store the Nailer in a cold weather environment Keep the Nailer in a warm area until beginning the work H the Nailer ts already cold bring it in a warm area and allow the Nailer to warm up before use D Reduce the air pressure to 40 psi 2 8 bar 2 8 kgf cm Remove all nails from the Nailer Connect the air hose and free fire blank fire the Nailer The lowered air pressure will be enough to free fire the Nailer Slow speed operation tends to warm up the moving part A CAUTION Do not free fire the Nailer at high pressure TESTING THE NAILER A DANGER Always wear eye protector A WARNING e Never use Nailer unless push lever is operating properly Before actually beginning the nailing work test the Nailer by using the checklist below Conduct the tests in the following order If abnormal operation occurs stop using the Mailer and contact a Hitachi authorized service center immediately 1 DISCONNECT AIR HOSE FROM NAILER REMOVE ALL NAILS FROM NAILER O ALL SCREWS MUST BE TIGHTENED If any screws are loose tighten them C THE PUSH LEVER AND TRIGGER MUST MOVE SMOOTHLY Trigger Push Lever Do
24. ubricant Piston O ring cut or heavily worm Contact Hitachi for replacement Drives properly during normal operation but does not drive fully Check inside diameter of air hose Use larger air hose at faster nailing speeds VH 650 2 66 6o 61 62 63 VH 650 Code No 949 822 Part Name Hexagon Socket Hd Bolt 949 454 3 876 444 l a 949 682 5 949 458 GA Spring Washer M5X35 M5 8A A 876 exhaust Cover D 7 876 747P Gasket F 876 749 Gasket G Hexagon Socket Hd Bott M6x25 4 Spring Washer M6 B 1 8 769 Exhaust Cover D 10A 878 417 Exhaust Valve 11 876 748P Head Cap D 31 835 O ring P368 13 14 876 734 Piston 874 104 Cylinder O ring 1 D 68 3 875 602 Cylinder O ring I1 D 50 9 877 312 876 732 Cylinder 876 759 Body Cap Ass y b 7A 876 766 976 7572 Nameplate 25 949 866 Roll Pin Piston Bumper A Gasket 949 776 876 691 876 689 876 737 76 712 Main Feeder Spring A Roll Pin Sub Feeder Spring Feeder Shaft 34 876 688 35 876 707 Main Feeder Sub Feeder 36D 876 752 Nose Ass y 875 643 3 Plunger Spring Plunger O ring Plunger A 8 874 820 39A 878 122 40B 878 266 Valve Bushing 41 875 638 O ring
25. ubricate the nose opening and feeder shaft A CAUTION 9 Check that the main nail stopper sub nail stopper main feeder and sub feeder slide smoothly by pushing them with finger If not smooth nails can be driven at an irregular angle and hurt someone Push Lever Knob Sub Feeder Sub Nail Stopper Main Feeder 4 Lubricate the feeding surfaces of the nose and the nail guide after cleaning This promotes smooth operation and prevents rust 2 Storing When not in use for an extended period apply a thin coat of the lubricant to the steel parts to avoid rust Do not store the Nailer in a cold weather environment Keep the Nailer in a warm area o When not in use the Nailer should be stored in a warm and dry place Keep out of reach of children 3 WARNING LABEL Change the WARNING LABEL if missing or damaged A new WARNING LABEL is available from a Hitachi authorized service center 4 Maintenance chart See page 15 5 Operator troubleshooting See page 15 SERVICE AND REPAIRS A WARNING Only service personnel trained by Hitachi distributor or employer shall repair the Nailer Use only parts supplied or recommended by Hitachi for repair All quality Nailers will eventually require servicing or replacement of parts because of wear from normal use NOTE Specifications are subject to change without any obligation on the part of HITACHI Maintenance chart ACTION WHY WHY HOW
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