DOC-20230111-WA0038.

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UPPRERSTRUCTURE / Control Valve11. Install O-ring (114) and backup ring (115) to plug(116). Install poppet (112), spring (113) and theplug into housing (8).12. Install O-ring (99) and backup ring (98) to spacer(100). Install poppet (102), spring (101), thespacer, O-rings (97) (2 used), anti-drift valve (96)into housing (8). Secure them with socket bolts(95) (4 used).:5 mm: 8.8 to 10.8 N⋅m(0.9 to 1.1 kgf⋅m, 6.5 to 8.0 lbf⋅ft)13. Install O-ring (27) to plug (26). Install poppet (32),spring (31), sleeve (30), poppet (29), spring (28)and the plug into housing (8).: 36 mm: 167 to 196 N⋅m(17 to 20 kgf⋅m, 123 to 145 lbf⋅ft)14. Install O-ring (106) to plug (107). Install poppet(104), spring (105) and the plug into housing (8).: 24 mm: 88 to 98 N⋅m(9 to 10 kgf⋅m, 65 to 72 lbf⋅ft)15. Install O-ring (110) to plug (111). Install spool(108), spring (109) and the plug into housing (8).: 32 mm: 78 to 88 N⋅m(8 to 9 kgf⋅m, 59 to 65 lbf⋅ft)16. Install main relief valve (103) to housing (8).: 32 mm: 49 to 59 N⋅m(5 to 6 kgf⋅m, 36 to 43 lbf⋅ft)W2-5-21
UPPRERSTRUCTURE / Control Valve1129583T1CC-03-03-00420, 2520, 21 20, 2522223248 3123, 12423356, 5758, 596061319 18 17 16 15 10, 11121, 122 3 7 6 5 9 4W1CC-02-05-009W197-02-05-008W2-5-22
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INTRODUCTIONTO THE READER• This m
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SAFETYRECOGNIZE SAFETY INFORMATION
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SAFETYWEAR PROTECTIVE CLOTHING• W
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SAFETYUSE HANDHOLDS AND STEPS• Fa
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OPERATE ONLY FROM OPERATOR'SSEAT•
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SAFETYDRIVE MACHINE SAFELY• Befor
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AVOID INJURY FROM BACK-OVER ANDSWIN
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SAFETYAVOID POWER LINES• Serious
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HANDLE FLUIDS SAFELY−AVOID FIRES
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SAFETYPRACTICE SAFE MAINTENANCETo a
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SAFETYPREVENT PARTS FROM FLYING•
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SAFETYAVOID HIGH-PRESSURE FLUIDS•
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SAFETYCheck Emergency Engine Stop S
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REMOVE PAINT BEFORE WELDING ORHEATI
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SAFETYDISPOSE OF WASTE PROPERLY•
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SECTION AND GROUPCONTENTSWORKSHOP M
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SECTION 1GENERAL INFORMATIONGroup 1
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GENERAL / Precautions for Disassemb
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TIGHTENING TORQUE SPECIFICATIONSGEN
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IMPORTANT: The following items are
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GENERAL / TighteningPIPING JOINT1 4
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GENERAL / TighteningScrew-In Connec
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PERIODIC REPLACEMENT OF PARTSGENERA
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GENERAL / PaintingPAINTINGPainting
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MEMO...............................
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SECTION 2UPPERSTRUCTURECONTENTSGrou
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UPPERSTRUCTURE / CabREMOVE AND INST
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UPPERSTRUCTURE / Cab9. Disconnect c
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UPPERSTRUCTURE / CabInstallationCAU
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UPPERSTRUCTURE / Cab7. Install viny
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DIMENSIONS OF THE CAB GLASSUPPERSTR
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UPPERSTRUCTURE / CabMethod for Remo
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UPPERSTRUCTURE / CabMethod for Inst
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UPPERSTRUCTURE / CabSpacer a (44584
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Install upper door glass as follows
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Install upper front glass as follow
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UPPERSTRUCTURE / CounterweightREMOV
Page 82 and 83: UPPERSTRUCTURE / Counterweight8. In
Page 84 and 85: UPPERSTRUCTURE / Counterweight5. In
Page 86 and 87: REMOVE AND INSTALL MAIN FRAMEUPPERS
Page 88 and 89: UPPERSTRUCTURE / Main FrameCAUTION:
Page 90 and 91: UPPERSTRUCTURE / Main FrameCAUTION:
Page 92 and 93: REMOVE AND INSTALL PUMP DEVICEUPPER
Page 94 and 95: UPPERSTRUCTURE / Pump DeviceInstall
Page 96 and 97: UPPERSTRUCTURE / Pump DeviceW2-4-5W
Page 98 and 99: UPPERSTRUCTURE / Pump DeviceDisasse
Page 100 and 101: UPPERSTRUCTURE / Pump Device1 - Cov
Page 102 and 103: UPPERSTRUCTURE / Pump DeviceAssembl
Page 108 and 109: UPPERSTRUCTURE / Pump Device(Blank)
Page 110 and 111: UPPERSTRUCTURE / Pump DeviceNo Part
Page 112 and 113: REMOVE AND INSTALLE CONTROLVALVE 1U
Page 114 and 115: UPPERSTRUCTURE / Control ValveInsta
Page 116 and 117: UPPERSTRUCTURE / Control ValveDISAS
Page 118 and 119: UPPERSTRUCTURE / Control Valve95838
Page 120 and 121: Disassemble Control Valve 1• Be s
Page 122 and 123: 5. Remove plug (26), O-ring (27), s
Page 124 and 125: UPPERSTRUCTURE / Control Valve13. L
Page 126 and 127: ASSEMBLE CONTROL VALVE 1UPPERSTRUCT
Page 128 and 129: UPPERSTRUCTURE / Control ValveSecti
Page 130 and 131: UPPERSTRUCTURE / Control ValveAssem
Page 134 and 135: UPPERSTRUCTURE / Control Valve17. I
Page 136 and 137: UPPERSTRUCTURE / Control ValveRemov
Page 138 and 139: UPPERSTRUCTURE / Control ValveDisas
Page 140 and 141: UPPERSTRUCTURE / Control Valve1 - S
Page 142 and 143: UPPERSTRUCTURE / Control ValveAssem
Page 144 and 145: REMOVE AND INSTALLE SWING DEVICEUPP
Page 146 and 147: UPPERSTRUCTURE / Swing Device(Blank
Page 148 and 149: UPPERSTRUCTURE / Swing DeviceDisass
Page 150 and 151: UPPERSTRUCTURE / Swing DeviceCAUTIO
Page 152 and 153: UPPERSTRUCTURE / Swing DeviceCAUTIO
Page 154 and 155: UPPERSTRUCTURE / Swing DeviceAssemb
Page 156 and 157: UPPERSTRUCTURE / Swing Device9. Adj
Page 158 and 159: UPPERSTRUCTURE / Swing Device10. Re
Page 160 and 161: UPPERSTRUCTURE / Swing DeviceIMPORT
Page 164 and 165: UPPERSTRUCTURE / Swing Device12. Re
Page 166 and 167: UPPERSTRUCTURE / Swing DeviceAssemb
Page 168 and 169: UPPERSTRUCTURE / Swing Device18. Ap
Page 172 and 173: REMOVE AND INSTALL RIGHT PILOTVALVE
Page 174 and 175: UPPERSTRUCTURE / Pilot ValveIMPORTA
Page 176 and 177: REMOVE AND INSTALL LEFT PILOTVALVEU
Page 178 and 179: UPPERSTRUCTURE / Pilot ValveIMPORTA
Page 180 and 181: REMOVE AND INSTALL TRAVEL PILOTVALV
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UPPERSTRUCTURE / Pilot ValveInstall
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REMOVE AND INSTALL BLADE PILOTVALVE
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UPPERSTRUCTURE / Pilot ValveInstall
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Disassemble Right and Left Pilot Va
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UPPERSTRUCTURE / Pilot ValveIMPORTA
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Assemble Right and Left Pilot Valve
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UPPERSTRUCTURE / Pilot Valve8. Appl
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UPPERSTRUCTURE / Pilot ValveDisasse
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UPPERSTRUCTURE / Pilot Valve10. Rem
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Assemble Travel Pilot ValveUPPERSTR
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UPPERSTRUCTURE / Pilot Valve7. Plac
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UPPERSTRUCTURE / Pilot Valve14. Ins
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Disassemble Blade Pilot Valve• Be
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UPPERSTRUCTURE / Pilot ValveAssembl
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UPPERSTRUCTURE / Pilot Shut-Off Val
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InstallationUPPERSTRUCTURE / Pilot
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UPPERSTRUCTURE / Pilot Shut-Off Val
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Assemble Pilot Shut-Off ValveUPPERS
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REMOVE AND INSTALL SHOCKLESSVALVEUP
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DISASSEMBLE AND ASSEMBLE SHOCK-LESS
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UPPERSTRUCTURE / Shockless Valvekey
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REMOVE AND INSTALL SOLENOID VALVEUN
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UPPERSTRUCTURE / Solenoid Valve(Bla
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Disassemble Proportional Solenoid V
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Assemble Proportional Solenoid Valv
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UPPERSTRUCTURE / Solenoid ValveDisa
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MEMO...............................
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SECTION 3UNDERCARRIAGECONTENTNSGrou
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REMOVE AND INSTALL SWING BEARINGUND
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UNDERCARRIAGE / Swing Bearing(Blank
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UNDERCARRIAGE / Swing BearingDisass
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UNDERCARRIAGE / Swing BearingAssemb
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REMOVE AND INSTALL TRAVEL DEVICEUND
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UNDERCARRIAGE / Travel DeviceInstal
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UNDERCARRIAGE / Travel DeviceDisass
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IMPORTANT: For handling of floating
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UNDERCARRIAGE / Travel DeviceAssemb
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UNDERCARRIAGE / Travel Device11. In
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UNDERCARRIAGE / Travel DeviceDisass
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12. Remove retaining rings (23) and
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UNDERCARRIAGE / Travel DeviceAssemb
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IMPORTANT: When needle bearing (7)
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Disassemble Brake Valve• Be sure
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Assemble Brake Valve• Be sure to
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REMOVE AND INSTALL CENTER JOINTUNDE
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UNDERCARRIAGE / Center JointInstall
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UNDERCARRIAGE / Center JointDisasse
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UNDERCARRIAGE / Center JointAssembl
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MAINTENANCE STANDARDUNDERCARRIAGE /
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REMOVE AND INSTALL TRACKADJUSTERBef
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Disassemble Track Adjuster• Be su
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UNDERCARRIAGE / Track AdjusterCAUTI
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UNDERCARRIAGE / Track AdjusterAssem
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REMOVE AND INSTALL FRONT IDLERBefor
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UNDERCARRIAGE / Front IdlerDisassem
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UNDERCARRIAGE / Front IdlerAssemble
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UNDERCARRIAGE / Upper And Lower Rol
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REMOVE AND INSTALL TRACKSRemovalUND
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UNDERCARRIAGE / TrackCAUTION: Secur
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UNDERCARRIAGE / TrackIMPORTANT: Ins
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UNDERCARRIAGE / TrackMAINTENANCE ST
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UNDERCARRIAGE / TrackPinBAW142-03-0
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MEMO...............................
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SECTION 4FRONT ATTACHMENTGroup 1 Fr
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FRONT ATTACHMENT / Front Attachment
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STANDARD DIMENSIONS FOR ARMAND BUCK
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REMOVE AND INSTALL CYLINDERFRONT AT
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FRONT ATTACHMENT / CylinderInstall
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FRONT ATTACHMENT / CylinderCAUTION:
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FRONT ATTACHMENT / Cylinder4. Remov
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4. Disconnect hoses (6) (2 used) fr
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5. Hoist boom cylinder (4). Start t
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FRONT ATTACHMENT / CylinderInstall
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FRONT ATTACHMENT / CylinderDisassem
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FRONT ATTACHMENT / CylinderAssemble
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FRONT ATTACHMENT / CylinderIMPORTAN
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11. Align the holes on piston rod (
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MEMO...............................
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SECTION 5ENGINE AND ACCESSORYSECTIO
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MEMO...............................
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Hitachi Construction Machinery Co.
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DOC-20230111-WA0038.

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