Hitachi H 65 Manual
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![Page 15
--- 12 ---
Removal of the Striker [8] and related parts
Remove the four Nylock Hex. Socket Hd. Bolts M8 x
35 [22], and separate the Cylinder Case [20] from the
Housing Assy [59]. From the Cylinder Case [20],
take out the Striker [8], Piston [11], and Connecting
Rod Assy [38] in a single body. Holding the Striker
[8] firmly in one hand, grasp the Connecting Rod
Assy [38] in the other hand and pull it forcefully to
separate it from the Striker. Finally, extract the Piston
Pin [10] from the Piston [11],...](http://img.usermanuals.tech/thumb/33/95564/w64_h-65-manual-1505483701_d-14.png "Page 15
--- 12 ---
Removal of the Striker [8] and related parts
Remove the four Nylock Hex. Socket Hd. Bolts M8 x
35 [22], and separate the Cylinder Case [20] from the
Housing Assy [59]. From the Cylinder Case [20],
take out the Striker [8], Piston [11], and Connecting
Rod Assy [38] in a single body. Holding the Striker
[8] firmly in one hand, grasp the Connecting Rod
Assy [38] in the other hand and pull it forcefully to
separate it from the Striker. Finally, extract the Piston
Pin [10] from the Piston [11],...")
![Page 16
--- 13 ---
9-1-2. Reassembly
Reassembly can be accomplished by following the disassembly procedures in reverse. However, special
attention should be given to the following items.
(1) Reassembly of the Crank Shaft [37] section:
Press-fit the Ball Bearing 6205DDCMPS2L [31] into the Inner Cover [45], and fasten Bearing Cover [32] onto
the Inner Cover [45] with the four Seal Lock Hex. Socket Hd. Bolts M5 x 16 [33]. Support the inner race of the
Ball Bearing 6205DDCMPS2L [31] with an appropriate jig, and...](http://img.usermanuals.tech/thumb/33/95564/w64_h-65-manual-1505483701_d-15.png "Page 16
--- 13 ---
9-1-2. Reassembly
Reassembly can be accomplished by following the disassembly procedures in reverse. However, special
attention should be given to the following items.
(1) Reassembly of the Crank Shaft [37] section:
Press-fit the Ball Bearing 6205DDCMPS2L [31] into the Inner Cover [45], and fasten Bearing Cover [32] onto
the Inner Cover [45] with the four Seal Lock Hex. Socket Hd. Bolts M5 x 16 [33]. Support the inner race of the
Ball Bearing 6205DDCMPS2L [31] with an appropriate jig, and...")
![Page 17
--- 14 --- (4) Reassembly of the Oil Felt:
To replace the Oil Felt [79], follow the procedures described below.
Fig. 12 Slender-Tipped Rod
or Steel Wire
Fig. 13 Oil Felt [79]
Recess
Felt Holder (C) Assy [77]Oil Felt [79]
Protruding amount:
10 --- 11 mm (0.39 --- 0.43)
1) As illustrated in Fig. 12, fit the wide end of the Oil Felt [79] into the oiling hole, and push it through with a
slender-tipped rod or steel wire.
2) When approximately 5 mm (0.2) of the Oil Felt [79] has been pushed through into the...](http://img.usermanuals.tech/thumb/33/95564/w64_h-65-manual-1505483701_d-16.png "Page 17
--- 14 --- (4) Reassembly of the Oil Felt:
To replace the Oil Felt [79], follow the procedures described below.
Fig. 12 Slender-Tipped Rod
or Steel Wire
Fig. 13 Oil Felt [79]
Recess
Felt Holder (C) Assy [77]Oil Felt [79]
Protruding amount:
10 --- 11 mm (0.39 --- 0.43)
1) As illustrated in Fig. 12, fit the wide end of the Oil Felt [79] into the oiling hole, and push it through with a
slender-tipped rod or steel wire.
2) When approximately 5 mm (0.2) of the Oil Felt [79] has been pushed through into the...")
![Page 18
--- 15 ---
Fig. 14 Oil Felt [79]
Fig. 15 Recess Protrusion
Oil Tank ChamberFelt Holder (C) Assy [77]Connecting Rod Assy [38]
M8 x 16 Hex.
Bolt [35]
Housing
Assy
Oil Felt [79]Oil Tank Chamber
(5) How to install Seal Ring (A) [44]:
To prevent oil from leaking through between the Housing Assy [59] and the Inner Cover [45], Seal Ring (A)
[44] is installed in the Inner Cover [45] for sealing oil. When fitting Seal Ring (A) [44] in the ring groove on the
Inner Cover [45], exercise care not to allow the Seal...](http://img.usermanuals.tech/thumb/33/95564/w64_h-65-manual-1505483701_d-17.png "Page 18
--- 15 ---
Fig. 14 Oil Felt [79]
Fig. 15 Recess Protrusion
Oil Tank ChamberFelt Holder (C) Assy [77]Connecting Rod Assy [38]
M8 x 16 Hex.
Bolt [35]
Housing
Assy
Oil Felt [79]Oil Tank Chamber
(5) How to install Seal Ring (A) [44]:
To prevent oil from leaking through between the Housing Assy [59] and the Inner Cover [45], Seal Ring (A)
[44] is installed in the Inner Cover [45] for sealing oil. When fitting Seal Ring (A) [44] in the ring groove on the
Inner Cover [45], exercise care not to allow the Seal...")
![Page 19
--- 16 ---
9-1-3. Screw Locking Agent TB1401
(1) Prior to reassembly, all M5, M6, Hexagon Socket Hd. Bolts and Machine Screws must be coated with Screw
Locking Agent ThreeBond TB1401.
(2) The following parts must be replaced with Hitachi Genuine Parts once they are loosened.
Front Cover Fixing Bolts: M8 x 30 [3]
Cylinder Case Fixing Bolts: M8 x 35 [22]
Fixing Bolt on the Connecting Rod Assy [38]M8 x 16 [35]
(CAUTION) If fastening bolts come loose from vibration, it could cause serious damage to the...](http://img.usermanuals.tech/thumb/33/95564/w64_h-65-manual-1505483701_d-18.png "Page 19
--- 16 ---
9-1-3. Screw Locking Agent TB1401
(1) Prior to reassembly, all M5, M6, Hexagon Socket Hd. Bolts and Machine Screws must be coated with Screw
Locking Agent ThreeBond TB1401.
(2) The following parts must be replaced with Hitachi Genuine Parts once they are loosened.
Front Cover Fixing Bolts: M8 x 30 [3]
Cylinder Case Fixing Bolts: M8 x 35 [22]
Fixing Bolt on the Connecting Rod Assy [38]M8 x 16 [35]
(CAUTION) If fastening bolts come loose from vibration, it could cause serious damage to the...")
--- 18 --- 10. STANDARD REPAIR TIME (UNIT) SCHEDULES MODEL 20 40 60 80FixedVariable H 65SCWork Flow Switch Cord Assy General Assembly Fixed Cost Switch Handle Front Cover Lever 0 min. Cord Assy 10 min. Others 20 min.Mouth Mouth Cover Urethane Ring Shank Sleeve DamperCylinder Case Assy Front Cover Lever Striker Piston L-Ring Connecting Rod Assy Needle BearingGear Cover Handle 120 min.100 Armature Assy Ball Bearing (6201) Ball Bearing (6203) Counter Gear Ball Bearing (6001) Ball Bearing (6201) Ball Bearing (6302) Final Gear Crank Shaft Ball Bearing (6205) Inner Cover Housing Stator Assy
--- 20 --- PARTSH 65SC : ALTERNATIVE PARTS ITEM NO.CODE NO. DESCRIPTIONNO.USEDREMARKS 1 998-423 STOP LEVER 1 2 998-426 NEEDLE ROLLER 1 3 306-437 NYLOCK HEX. SOCKET HD. BOLT M8X30 6 4 998-424 SPRING CASE 1 5 956-975 LEVER SPRING 1 6 998-425 DAMPER (B) 1 7 957-152 FRONT COVER 1 8 956-958 STRIKER 1 9 944-927 L-RING 1 10 944-928 PISTON PIN 1 11 956-957 PISTON 1 12 944-918 PIN D5X15.8 2 13 956-965 DAMPER 1 14 944-936 O-RING 1 15 956-964 SHANK SLEEVE 1 16 956-962 MOUTH COVER 1 17 956-963 MOUTH 1 18 956-961 MOUTH WASHER 1 19 956-960 URETHANE RING 1 20 306-164 CYLINDER CASE (BLACK) 1 21 956-996 O-RING (1AS-60) 1 22 306-163 NYLOCK HEX. SOCKET HD. BOLT M8X35 4 23 949-433 BOLT WASHER M8 (10 PCS.) 4 24 944-950 U-NUT (B) M8 2 25 944-948 HANDLE STAY 1 26 949-895 SPLIT PIN D4X25 (10 PCS.) 2 27 944-952 HANDLE SHAFT 1 28 949-655 HEX. SOCKET HD. BOLT M8X16 (10 PCS.) 2 29 956-852 SIDE HANDLE ASS’Y 1 INCLUD.24-28,30 30 944-951 GRIP 1 31 620-5DD BALL BEARING 6205DDCMPS2L 1 32 956-949 BEARING COVER 1 33 990-079 SEAL LOCK HEX. SOCKET HD. BOLT M5X16 7 34 944-921 NEEDLE BEARING (NTN 8E-NK 18/20 RDO) 1 35 996-364 SEAL LOCK HEX. SOCKET HD. BOLT M8X16 1 36 956-850 WOODRUFF KEY 4X16 2 37 957-142 CRANK SHAFT 1 38 998-434 CONNECTING ROD ASS’Y 1 INCLUD.34 39 956-955 CRANK WASHER 1 40 318-207 GEAR COVER 1 41 630-2VV BALL BEARING 6302VVCMPS2L 1 42 944-916 FINAL GEAR 1 43 944-915 DISTANCE RING (B) 1 44 957-143 SEAL RING (A) 1 45 998-412 INNER COVER 1 46 NAME PLATE 1 47 986-940 SEAL LOCK HEX. SOCKET HD. BOLT M6X45 6 48 944-911 BEARING COVER (A) 1 49 620-3DD BALL BEARING 6203DDCMPS2L 1 50 944-907 DISTANCE RING (A) 1 51 620-1VV BALL BEARING 6201VVCMPS2L 1 *8--- 99
--- 21 --- PARTSH 65SC ITEM NO.CODE NO. DESCRIPTIONNO. USEDREMARKS 52 956-948 COUNTER GEAR 1 53 600-1VV BALL BEARING 6001VVCMPS2L 1 54 960-251 HEX. HD. TAPPING SCREW D5X65 2 55 956-764 SPECIAL WASHER 2 * 56 340-259G STATOR ASS’Y 115V 1 INCLUD.57,63 FOR USA * 56 340-259E STATOR ASS’Y 220V-230V 1 INCLUD.57,63 57 945-932 BRUSH TERMINAL 2 58 620-1DD BALL BEARING 6201DDCMPS2L 1 59 318-208 HOUSING ASS’Y 1 INCLUD.69,80 60 996-370 FAN 1 * 61 360-286U ARMATURE ASS’Y 115V 1 INCLUD.49,58,60,64 FOR USA * 61 360-286E ARMATURE ASS’Y 220V-230V 1 INCLUD.60 62 306-098 FAN GUIDE 1 63 VINYL TUBE(ID7XT0.25X20) 1 64 944-954 BEARING WASHER 1 65 956-972 CAP COVER 2 66 944-960 CAP RUBBER 2 67 940-540 BRUSH CAP 2 68 999-086CARBON BRUSH (AUTO STOP TYPE) (1 PAIR) 2 69 956-984 BRUSH HOLDER 2 70 983-162 SEAL LOCK HEX. SOCKET HD. BOLT M4X12 4 71 956-971 COVER SEAL 1 72 956-970 COVER PLATE 1 73 991-690 SEAL LOCK HEX. SOCKET HD. BOLT M5X12 6 74 955-011 OIL GAUGE 1 75 CAUTION PLATE 1 76 956-969 HOLDER SEAL 1 77 318-206 FELT HOLDER (C) ASS’Y 1 INCLUD.79 78 987-203SEAL LOCK SCREW (W/SP. WASHER) M4X12 4 79 998-534 OIL FELT 1 80 938-477 HEX. SOCKET SET SCREW M5X8 2 81 306-099 TAIL COVER 1 82 307-028TAPPING SCREW (W/FLANGE) D4X25 (BLACK) 3 * 83 981-974 INTERNAL WIRE 1 EXCEPT USA * 84 949-423 WASHER M4 (10 PCS.) 1 FOR SAF,HOL 85 995-398 SWITCH (A) (1P SCREW TYPE) W/LOCK 1 86 312-408 SUPPORT (F) 1 * 87 994-273 NOISE SUPPRESSOR 1 EXCEPT HKG,USA 88 971-168 HANDLE AND HANDLE COVER SET 1 * 89 500-440Z CORD 1 (CORD ARMOR D8.2) FOR HKG * 89 500-454Z CORD 1 (CORD ARMOR D10.7) FOR SAF * 89 500-390Z CORD 1 (CORD ARMOR D10.7) FOR HOL * 89 500-434Z CORD 1 (CORD ARMOR D8.2) FOR USA * 89 500-457Z CORD 1 (CORD ARMOR D8.2) FOR CHN * 90 938-307 PILLAR TERMINAL 1 FOR USA * 91 963-243 SUPPORT 1 FOR USA 92 306-167 TUBE (I.D.7XT1.1X15) 1 * 93 305-798 INTERNAL WIRE 1 EXCEPT HKG,USA * 94 959-140 CONNECTOR 50091 (10 PCS.) 1 EXCEPT HKG,USA * 95 959-141 CONNECTOR 50092 (10 PCS.) 1 EXCEPT USA * 96 996-438 VINYL TUBE (A) (I.D.7XT0.5X50) 2 : ALTERNATIVE PARTS*8--- 99
--- 22 --- : ALTERNATIVE PARTS* PARTSH 65SC ITEM NO.CODE NO. DESCRIPTIONNO. USEDREMARKS * 96 996-438 VINYL TUBE (A) (I.D.7XT0.5X50) 3 FOR USA * 97 980-063 TERMINAL 1 * 97 992-810 TERMINAL 1 FOR HOL * 97 930-804 TERMINAL M4.0 (10 PCS.) 1 FOR USA 98 984-750 TAPPING SCREW (W/FLANGE) D4X16 2 99 960-266 CORD CLIP 1 * 100 940-778 CORD ARMOR D10.7 1 * 100 958-049 CORD ARMOR D8.2 1 101 987-707 SEAL LOCK HEX. SOCKET HD. BOLT M6X25 4 8--- 99 Printed in Japan (990825 N) 601 944-962 COLD CHISEL 410MM (HEX. SHANK TYPE) 1 602 944-964 CUTTER W75X45L (ROUND SHANK TYPE) 1 603 944-966 RAMMER SHANK (HAMMER) 1 604 944-965 RAMMER 200MM 1 605 957-154 SCOOP 380L (ROUND SHANK TYPE) 1 STANDARD ACCESSORIES ITEM NO.CODE NO. DESCRIPTIONNO.USEDREMARKS OPTIONAL ACCESSORIES ITEM NO.CODE NO. DESCRIPTIONNO.USEDREMARKS 501 314-170 CASE (STEEL) 1 502 872-422 HEX. BAR WRENCH 6MM 1 503 944-459 HEX. BAR WRENCH 5MM 1 504 944-961 BULL POINT 410MM 1 505 971-109 WRENCH 23MM 1 506 931-848 LUBRICANT OILER (120CC) 1