DOC-20230111-WA0038.

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REMOVE AND INSTALL TRAVEL DEVICEUNDERCARRIAGE / Travel DeviceCAUTION: Escaping fluid under pressurecan penetrate the skin, causing serious injury.Avoid this hazard by relieving pressurebefore disconnecting hydraulic lines.Hydraulic oil may be hot after operation andmay spurt, possibly causing severe burns. Besure to wait for oil to cool before starting anyrepair work.The hydraulic oil tank cap may fly off due toremaining pressure if removed quickly.Slowly loosen the cap to release anyremaining pressure completely.Preparation1. Park the machine on a solid level surface. Lowerthe bucket onto the ground.2. Stop the engine. Push the air release valve on thetop of the hydraulic oil tank to release anyremaining pressure.M1CC-07-0023. Remove the hydraulic oil tank cap. Connect avacuum pump and operate it continuously tomaintain negative pressure in the hydraulic oiltank. Run the vacuum pump continuously, whileworking on the hydraulic system.W3-2-1
UNDERCARRIAGE / Travel DeviceRemoval1. Remove bolt (4) and washer (3) from the trackframe to remove cover (2).: 22 mm2. Disconnect all hoses from the travel device. Capthe disconnected hoses. Attach tags to them forassembly.: 19 mm, 22 mm, 27 mm1CAUTION: Travel device weight: 140 kg(309 lb)3. Remove the travel device mounting bolts (1).Remove the travel device by crane.: 24 mm432W152-03-02-003W3-2-2
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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 Device(Blank)
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UPPERSTRUCTURE / Pump DeviceNo Part
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REMOVE AND INSTALLE CONTROLVALVE 1U
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UPPERSTRUCTURE / Control ValveInsta
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UPPERSTRUCTURE / Control ValveDISAS
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UPPERSTRUCTURE / Control Valve95838
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Disassemble Control Valve 1• Be s
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5. Remove plug (26), O-ring (27), s
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UPPERSTRUCTURE / Control Valve13. L
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ASSEMBLE CONTROL VALVE 1UPPERSTRUCT
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UPPERSTRUCTURE / Control ValveSecti
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UPPERSTRUCTURE / Control ValveAssem
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UPPRERSTRUCTURE / Control Valve11.
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UPPERSTRUCTURE / Control Valve17. I
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UPPERSTRUCTURE / Control ValveRemov
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UPPERSTRUCTURE / Control ValveDisas
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UPPERSTRUCTURE / Control Valve1 - S
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UPPERSTRUCTURE / Control ValveAssem
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REMOVE AND INSTALLE SWING DEVICEUPP
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UPPERSTRUCTURE / Swing Device(Blank
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UPPERSTRUCTURE / Swing DeviceDisass
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UPPERSTRUCTURE / Swing DeviceCAUTIO
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UPPERSTRUCTURE / Swing DeviceCAUTIO
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UPPERSTRUCTURE / Swing DeviceAssemb
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UPPERSTRUCTURE / Swing Device9. Adj
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UPPERSTRUCTURE / Swing Device10. Re
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UPPERSTRUCTURE / Swing DeviceIMPORT
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UPPERSTRUCTURE / Swing Device12. Re
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UPPERSTRUCTURE / Swing DeviceAssemb
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UPPERSTRUCTURE / Swing Device18. Ap
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REMOVE AND INSTALL RIGHT PILOTVALVE
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UPPERSTRUCTURE / Pilot ValveIMPORTA
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REMOVE AND INSTALL LEFT PILOTVALVEU
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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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Assemble Right and Left Pilot Valve
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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
Page 206 and 207: Disassemble Blade Pilot Valve• Be
Page 208 and 209: UPPERSTRUCTURE / Pilot ValveAssembl
Page 210 and 211: UPPERSTRUCTURE / Pilot Shut-Off Val
Page 212 and 213: InstallationUPPERSTRUCTURE / Pilot
Page 214 and 215: UPPERSTRUCTURE / Pilot Shut-Off Val
Page 216 and 217: Assemble Pilot Shut-Off ValveUPPERS
Page 218 and 219: REMOVE AND INSTALL SHOCKLESSVALVEUP
Page 220 and 221: DISASSEMBLE AND ASSEMBLE SHOCK-LESS
Page 222 and 223: UPPERSTRUCTURE / Shockless Valvekey
Page 224 and 225: REMOVE AND INSTALL SOLENOID VALVEUN
Page 226 and 227: UPPERSTRUCTURE / Solenoid Valve(Bla
Page 228 and 229: Disassemble Proportional Solenoid V
Page 230 and 231: Assemble Proportional Solenoid Valv
Page 232 and 233: UPPERSTRUCTURE / Solenoid ValveDisa
Page 234 and 235: MEMO...............................
Page 236 and 237: SECTION 3UNDERCARRIAGECONTENTNSGrou
Page 238 and 239: REMOVE AND INSTALL SWING BEARINGUND
Page 240 and 241: UNDERCARRIAGE / Swing Bearing(Blank
Page 242 and 243: UNDERCARRIAGE / Swing BearingDisass
Page 244 and 245: UNDERCARRIAGE / Swing BearingAssemb
Page 248 and 249: UNDERCARRIAGE / Travel DeviceInstal
Page 250 and 251: UNDERCARRIAGE / Travel DeviceDisass
Page 252 and 253: IMPORTANT: For handling of floating
Page 254 and 255: UNDERCARRIAGE / Travel DeviceAssemb
Page 256 and 257: UNDERCARRIAGE / Travel Device11. In
Page 258 and 259: UNDERCARRIAGE / Travel DeviceDisass
Page 260 and 261: 12. Remove retaining rings (23) and
Page 262 and 263: UNDERCARRIAGE / Travel DeviceAssemb
Page 264 and 265: IMPORTANT: When needle bearing (7)
Page 266 and 267: Disassemble Brake Valve• Be sure
Page 268 and 269: Assemble Brake Valve• Be sure to
Page 270 and 271: REMOVE AND INSTALL CENTER JOINTUNDE
Page 272 and 273: UNDERCARRIAGE / Center JointInstall
Page 274 and 275: UNDERCARRIAGE / Center JointDisasse
Page 276 and 277: UNDERCARRIAGE / Center JointAssembl
Page 278 and 279: MAINTENANCE STANDARDUNDERCARRIAGE /
Page 280 and 281: REMOVE AND INSTALL TRACKADJUSTERBef
Page 282 and 283: Disassemble Track Adjuster• Be su
Page 284 and 285: UNDERCARRIAGE / Track AdjusterCAUTI
Page 288 and 289: UNDERCARRIAGE / Track AdjusterAssem
Page 292 and 293: REMOVE AND INSTALL FRONT IDLERBefor
Page 294 and 295: 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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