Hitachi Hydraulic Excavator UH121 UH121LC Operation Manual(EM171-2-1) – PDF DOWNLOAD

Description

Hitachi Hydraulic Excavator UH121 UH121LC Operation Manual(EM171-2-1) – PDF DOWNLOAD

FILE DETAILS:

Hitachi Hydraulic Excavator UH121 UH121LC Operation Manual(EM171-2-1) – PDF DOWNLOAD

Language : English
Pages :83
Downloadable : Yes
File Type : PDF
Size:8.40 MB

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION

Hitachi Hydraulic Excavator UH121 UH121LC Operation Manual(EM171-2-1) – 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(EM171-2-1) – PDF DOWNLOAD

CNTENTS
SPECIFICATINS G
CNSTRUCTIN l!I
2 a 1 General Ii) G e Ill
2 2 Hydraulic System Q ” a e 6
23 Air System
24 Electrical
system
3 PERATIN 12
31 Precautins in Handling a New Machine 12
32 perating Excavatr 12
33 Starting the Engine 16
3 0 4 stpping the E!)-g ine 0 D Q a a
35 Warming-up the Hydraulic System 18
36 peratin in Winter r Cld Time 19
3 GI 7 Prpelling a
3 8 perating In_structin 22
381 Cautin fr peratin 22
382 Digging ditches (Backhe peratin) 25
383 Shvel peratin 25
384 Cautins fr perating in water r mud 25
39 Reversing the Bucket 26
310 Twing the Machine
311 Getting n and ff the Machine
4 MAINTENANCE AND ADJUSTMENT 29
41 Peridic Inspectin and Maintenance 29
411 Daily inspectin (Befre-peratin service) 29
4 1 2 Mnthly inspectin 30
413 Yearly inspectin 32
414 Replacement f lubricants and filter
elements 3 4
42 Lubricatin Pints and Lcatins f Filters 35
43 Recmmended Fuel il and Lubricants 37
44 Inspectins befre perating Excavatr ~ 39
45 Precautins after peratin 40
46 Inspectin and Maintenance 40
461 Engine il 41
462 Engjne il filter 41
Centrifugal
Fuel filter
Air cleaner
Radiatr
il filter
Transmissin
Center jint
469 Air filter
Hydraulic il
Replacing hydraulic il
(Full-flw filter)
Fuel tank
Adjusting track
link G
Electrical system
Lubricatin f frnt-attachment
Bucket teeth
Reinstalling
pint replacement
bucket pin seal
Retightening blts and nuts
4620 Cautin
47 Maintenance
in disassembling and repairs
Service under Unusual Cnditins
Precautins in Lng utage –
TRANSPRTATIN
5 1 Transprtatin
52 Dimensins fr transprt
TRUBLESHTING GUIDE
Engine
Engine Accessries
Cntrl levers
Hydraulic System
Prpelling
Swinging

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