DOC-20230111-WA0038.

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UPPERSTRUCTURE / Swing Device9. Adjust the bearing pre-load:1) With shaft (27) being held, loosen nut (18).2) Tap around the outer flange of housing (22)three or four turns with a plastic hammer.3) Install a socket bolt (1) to housing (22).4) After rotating housing (22) in both clockwiseand counterclockwise directions severaltimes, install the spring balance to socketbolt (1) to measure the starting torque (A)of housing (22).Starting TorqueIMPORTANT: When aligning holes, alwaystighten the nut.Tightening torque shall be lessthan 295 N⋅m (30 kgf⋅m, 215 lbf⋅ft).6) After installing second stage carrier (13) ontoshaft (27), check if knock pin (17) can beinstalled into the nut (18) hole.If the knock pin hole on second stage carrier(13) is not aligned with the nut hole, tighten nut(18) until both holes align with each other.7) After rotating housing (22) in both clockwise andcounterclockwise directions several times,install the spring balance to socket bolt (1) tomeasure the starting torque (B) of housing (22).8) Check that the starting torque shall be in thefollowing range.If not in the range, repeat adjusting work fromstep 1).1Torque DifferenceB-AStandard+9.8 to +39.2 N(+1.0 to +4.0 kgf (+7to 29 Ibf))2218Flange27W152-02-06-0025) Tighten nut (18) to shaft (27) using special tool(ST 4129).: 152 N⋅m (15.5 kgf⋅m, 112 lbf⋅ft)ST 4129W1CC-02-06-002W2-6-13
UPPERSTRUCTURE / Swing Device4781214569131516111723182227T152-03-02-006W2-6-14
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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
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UPPERSTRUCTURE / Counterweight8. In
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UPPERSTRUCTURE / Counterweight5. In
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REMOVE AND INSTALL MAIN FRAMEUPPERS
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UPPERSTRUCTURE / Main FrameCAUTION:
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UPPERSTRUCTURE / Main FrameCAUTION:
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REMOVE AND INSTALL PUMP DEVICEUPPER
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UPPERSTRUCTURE / Pump DeviceInstall
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UPPERSTRUCTURE / Pump DeviceW2-4-5W
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UPPERSTRUCTURE / Pump DeviceDisasse
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UPPERSTRUCTURE / Pump Device1 - Cov
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UPPERSTRUCTURE / Pump DeviceAssembl
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UPPERSTRUCTURE / Pump DeviceDisasse
Page 106 and 107: UPPERSTRUCTURE / Pump DeviceDisasse
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 132 and 133: UPPRERSTRUCTURE / Control Valve11.
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 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 180 and 181: REMOVE AND INSTALL TRAVEL PILOTVALV
Page 182 and 183: UPPERSTRUCTURE / Pilot ValveInstall
Page 184 and 185: REMOVE AND INSTALL BLADE PILOTVALVE
Page 186 and 187: UPPERSTRUCTURE / Pilot ValveInstall
Page 188 and 189: Disassemble Right and Left Pilot Va
Page 192 and 193: Assemble Right and Left Pilot Valve
Page 194 and 195: UPPERSTRUCTURE / Pilot Valve8. Appl
Page 196 and 197: UPPERSTRUCTURE / Pilot ValveDisasse
Page 198 and 199: UPPERSTRUCTURE / Pilot Valve10. Rem
Page 200 and 201: Assemble Travel Pilot ValveUPPERSTR
Page 202 and 203: UPPERSTRUCTURE / Pilot Valve7. Plac
Page 204 and 205: 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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