Hitachi Hydraulic Excavator UH121 UH121LC Operation Manual(EM171-1-6) – PDF DOWNLOAD

Description

Hitachi Hydraulic Excavator UH121 UH121LC Operation Manual(EM171-1-6) – PDF DOWNLOAD

FILE DETAILS:

Hitachi Hydraulic Excavator UH121 UH121LC Operation Manual(EM171-1-6) – PDF DOWNLOAD

Language : English
Pages :88
Downloadable : Yes
File Type : PDF
Size:8.35 MB

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION

Hitachi Hydraulic Excavator UH121 UH121LC Operation Manual(EM171-1-6) – PDF DOWNLOAD

FOREWORD

• This Instruction Manual contains information on the operation, lubrication and maintenance of the Hitachi Hydraulic Excavator Model UH121.
• It also contains a description of the major units and their functions in relation to other components of the machine. The care you give your Hitachi UH121 Hydraulic Excavator will greately determine the longevity of this machine. How well the unit continues to give satisfactory performance depends upon the manner in which it is operated.
• It is requested that this manual be read through so that the machine is always in top mechanical and hydraulic condition. For the operation, lubrication and maintenance of the engine, references are to be made to the Isuzu El20 Diesel Engine Operator’s Manual.

TABLE OF CONTENTS:

Hitachi Hydraulic Excavator UH121 UH121LC Operation Manual(EM171-1-6) – PDF DOWNLOAD

1 SPECIFICATIONS
CONTENTS
2 CONSTRUCTION 5
2 1 General 5
22 Hydraulic System
23 Air System
2 4 Electrical System 11
3 OPERATION 12
31 Precautions in Handling a New Machine 12
32 Operating Excavator 12
33 Starting the Engine 16
34 Stopping the Engine 18
35 Warming-up the Hydraulic System 18
36 Operation in Winter or Cold Time 19
3 7 Propelling 20
38 Operating Instruction 22
38l Caution for operation 22
382 Digging ditches (Backhoe operation) 25
383 Shovel operation 25
39 Reversing the Bucket 26
3 10 Towing the Machine 2 7
311 Getting On and Off the Machine 27
4 MAINTENANCE AND ADJUSTMENT 2 9
41 Periodic Inspection and Maintenance 29
41l Daily inspection (Before-operation service) 29
412 Monthly inspection 30
413 Yearly inspection 32
414 Replacement of lubricants and filter
elements 34
42 Lubrication Points and Locations of Filters 35
43 Recommended Fuel Oil and Lubricants 37
44 Inspections before Operating Excavator 39
45 Precautions after Operation 40
46 Inspection and Maintenance 40
46l Engine oil 41
462 Engine oil filter 41
463 Centrifugal oil filter
Fuel filter
Air cleaner
Radiator
Transmission
Center joint
Air filter
Hydraulic oil
Replacing hydraulic oil filter
(Full-flow filter)
4612 Fuel tank
4613 Air tank
4614 Adjusting track link
Electrical system
Lubrication of front-attachment
Bucket teeth
Reinstalling
Retigh tening
point replacement
bucket pin seal
bolts and nuts
4620 Caution in disassembling and repairs
Maintenance Service under Unusual Conditions
48 Precautions in Long Outage 66
TRANSPORTATION
51 Transportation
52 Dimensions for transport
TROUBLESHOOTING GUIDE
61 Engine
62 Engine Accessories
63 Control levers
Hydraulic
Propelling
Swinging
System

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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