Hitachi Hydraulic Excavator UH121 Service Manual(KM-020-00) – PDF DOWNLOAD

Description

Hitachi Hydraulic Excavator UH121 Service Manual(KM-020-00) – PDF DOWNLOAD

FILE DETAILS:

Hitachi Hydraulic Excavator UH121 Service Manual(KM-020-00) – PDF DOWNLOAD

Language : English
Pages :594
Downloadable : Yes
File Type : PDF
Size:77.1 MB

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION

Hitachi Hydraulic Excavator UH121 Service Manual(KM-020-00) – PDF DOWNLOAD

FOREWORD

• This service manual explains the correct maintenance and repair procedures to ensure optimal performance and maximum service life for Hitachi construction machinery.
• Tne serviceman is requested to read the manual thoroughly and consult it whenever he is not sure of correct servicing. Use the manual not only as a reference guide to maintenance but also a textbook to train new serviceiren who are lillfamiliar with Hitachi construction machinery.
• The manual is divided into four sections such as SPECIFICATIONS, OPERATIONAL PRINCIPLE, DISASSEMBLY and ASSEMBLY and MAINTENANCE STANDARD. A thorough knowledge of the these will help to:

1.  Diagnose the cause of the failure.
2. Determine reuse or replacement of parts.
3. 3. Install the units and assemble the parts correctly. We hope that this manual will aid in quick, easy and lower cost servicing of the machines.

TABLE OF CONTENTS:

Hitachi Hydraulic Excavator UH121 Service Manual(KM-020-00) – PDF DOWNLOAD

UH121…………………………………………… 1
FOREWORD………………………………………… 3
CARE OF THE HANDLING……………………………… 6
SPECIFICATIONS…………………………………… 8
OPERATIONAL PRINCIPLE…………………………….. 20
GENERAL(Machine Serial No.~ 1129)………………. 22
GENERAL(Machine Serial No. 1129~)………………. 71
ASSIST VALVE………………………………….109
BRAKE VALVE…………………………………..115
CYLINDER……………………………………..121
FULL-FLOW FILTER………………………………125

HM MOTOR……………………………………131
HPV125 AXIAL PISTON PUMP……………………….137
IP GEAR PUMP………………………………….145
MVP CONTROL VALVE……………………………..151
KVC PLUNGER PUMP………………………………165
PREFERENCE VALVE………………………………171
REGULATOR…………………………………….177
RM75A REGULATOR……………………………….189
SLOW RETURN VALVE……………………………..201
SX MOTOR……………………………………..205
SWING REDUCTION DEVICE…………………………213
DISASSEMBLY and ASSEMBLY…………………………..217
BRAKE VALVE…………………………………..219
CYLINDER……………………………………..233
HM MOTOR……………………………………..259
HPV125 AXIAL PISTON PUMP (Serial No.~ 1129)………295
IP GEAR PUMP………………………………….335
MPV CONTROL VALVE……………………………..341
KVC PLUNGER PUMP (Serial No. 001~ 1128)………….371
TRAVEL DVICE………………………………….399
REGULATOR (Serial No. 001~ 1128)………………..429
RM75A REGULATOR (Serial No. 1129~)………………439
SX MOTOR……………………………………..457
SWING REDUCTION DEVICE…………………………485
HOW TO DISASSEMBLY/ ASSEMBLE-HYDRAULIC EQUIPMENT….493
CONVERSION TABLE………………………………507
MAINTENANCE STANDARD………………………………515
UH121 MAINTENANCE STANDARD……………………..517
CYLINDER……………………………………..567
HM MOTOR……………………………………..571
SX MOTOR……………………………………..589

Need help? Contact: [email protected]

PLEASE NOTE:

• This is the SAME exact manual used by your dealers to fix your vehicle.
• The same can be yours in the next 2-3 mins as you will be directed to the download page immediately after paying for the manual.
• Any queries / doubts regarding your purchase, please feel free to contact [email protected]

S.M