Case 120 Crawler Excavator Parts Catalog Manual S406209M2 – PDF DOWNLOAD

Description

Case 120 Crawler Excavator Parts Catalog Manual S406209M2 – PDF DOWNLOAD

DESCRIPTION:

Case 120 Crawler Excavator Parts Catalog Manual S406209M2 – PDF DOWNLOAD

PARTS CATALOG INTRODUCTION
DESCRIPTION:

This parts catalog No. S 406209M2 issued April 1977 is for all DROTT 120 CRAWLER models. ThUJ catalogrepIaces the previous
issue No. S 406209Ml which is obsolete and should be discarded.

TABLE OF CONTENTS AND NUMERICAL

The catalog is arranged for easy identification of genuine DH01’T Service Parts. An alphabetical table of contents is provided at the
front or’ this catalog to locate the major grnups or Ilssemulit!l!. A numerical index at the rear of the catalog gives the part number and the
pages on which they are described.
ILLUSTRATIONS
All parts afe illustrated in “Exploded Views” which sh9W the individl.lal parts in their normal relationship to each other. Reference
numbers lire used in the illustrations. These numbers correspond to those in the “Reference Number” column and are foUowed by the
part number. description and quantity required.
IUustrations andlor parts listing may be shown with notes or designations which refer to specified models. or units with specified serial
numbers. Where an illustration andlor parts listing is shown without notes or designations. this indicates the parlslisted cover aU serial
numbered units and all model units.
• An asterisk in front of the reference numb”r indicates an added listing,
-An asterisk in front of part number, qUAntity or description indicates a change in listing.
NSS in part number column indicates this part is not serviced separately.
UAR in REQ’D column indicates this part is used as required.

TABLE OF CONTENTS:

Case 120 Crawler Excavator Parts Catalog Manual S406209M2 – PDF DOWNLOAD

GENJ<:RAL 1 ‘fHRlJ 6
No1nenclature 5
Parts Catalog lntrodm·tion H
Ta bit of Contt’lltfl 1,2 :3 4
CRAWLER UNIJERCARRIAGE AND ATTACHING PAHTS (l,t ss Hydraulics} 7 THRU 28
Crawler Unden:arriage:
Carb()dy with Bearing and Attaching ParLs 7,8
Track Frame and Attadting Parts 9 10
Drive Mown, · (See Pnge 230)
Drive Motor Hydraulics· (Sec Pa1;es 161 thru 168)
Front l dler Wheel and Track Adj ust<ir 13, 14
Track Adjuster Cylinder 1 :·u o
Track Brakes (See J lage 12!) I hrn 118)
Track Brnkes Hydraulics· (Se(J l’aMt>S ttm thru I 7,1)
Track Chain Guides (See l tems 12 thru l fl and 21 thru 23 on page 9)
Track Drive Motor Shields and Uuards · (See Ht ms 2 t hru 10 on page 7)
Track Drive Transmissions 23 thru 2H
Track Rollers 17 thru 22
Track Shoos, Pins and Links 11 12
ENGINE AND A’fTACHING PARTS 29 THRU 52
Air Cleaner 39,40
Air Cleaner and Attaching Parts 37,38
Engine and Attaching Parts 29 thru 32
Fan Guard and Attaching Parts 43 44
Fuel Tank and LiMS 47 48
Muffler and Attaching Parts : 33 34
Pump Drive Transmission 49,50
Pump Drive Transmission Clutch 51,52
Radiator Oil Cooler Hoses and Attaching Parts 41 42
Spark Arrestor 35,36
Throttle and Shut-Off Cont rol Cah!Ps 4[>,46
li PPERSTRUCTUR E WlTH: BOOM, ATTACHMENTS und UPPER CONT HO LS
(Lessl{vdraulics) 53 THRU 128
Cab:
Cab and Attaching Parts 61 thru 6-1, 71 thru 7 4
Cab Door and AU aching Parts 67 68 7 fJ, 76
Cab Insulation 69 70 81,82
Upper and Lower \N indshield and Attad1ing Parts 6!\66 77 7 8-
Vandal Guard 79 80
Windshield Wiper and Attaching Parts 8~tt–l
Center Swivel and Attaching Parts iOH 11 0
Counterweight and Attaching Parts 97 9t1
CountHweight Hemoval Valve I inkagt’tmd Attn<“hing Part s ~19 100
Dippen,Liek and Pim; 10:i l!L!
! ,, , tH d \ l ,, :1 ‘\i, :
I’,\ HT l\l iMHEH S 406:W\l\!’2
2 MODEL 12 0 CRAWLER
TABLE OF CONTENTS(CON’T )
UPPJ<::RSTRUCTURE WITH: BOOM, ATTACHMENTS and UPPER CONTROL ‘, {Less Hydraulics) (CON’T )
Functional Controls:
Modulator Valve and Attaching Parts· (Hand Control in Cab):
Left Hand Valve – (controls Hoist and Left Track Funct ions) · (See pa1{e 193,195)
Right Hand Valve· (controls Crowd and Right Track Functions)· (See page 193,195)
Modulator Valve and Attaching Parts – (Foot Pedal Control in Cab;:
Left Foot Pedal· (Controls Swing Function) 111 thru 114
Right Foot Pedal· {Controls Tool Function) 111 thru 114
Main Boom and Pins 101,102
Operator Access Walkway and Attaching Parts 95,Vf:i
SwingBrake 119,120
Swing Brake Control 121,122
Swing Reducer 115 thru 118
Tool Attachments – (With Links and Pins) 105 thru 108
Backhoe Buckets 105 thru 108
Backhoe Bucket Side Cutter· (See Item 23 on page 105)
Track Drive Brakes 125 thru 1 28
Track Drive Brake Hydraulics – (See Pages 169 thru 176)
Track Drive Brake Valve~ (See Page 260)
Track Drive Brake Valve and Control Linkage 123,124
Track Drive Motors· (See Page 229 thru 232)
· Track Drive Motor Hydraulics· {See Pages 161 thru 168)
Turntable and Attaching Parts 53,54,59,60
Turntable Bearing Lubrication Line 55,56
Turntable Shrouding:
Front Shrouding and Attaching Parts , 91,92
Left Side Shrouding and Attaching Parts 89,90
Rear Shrouding and Attaching Parts : 87,88
Right Side Shrouding and Attaching Parts 85,86
‘fop Shrouding and Attaching Parts 93,94
Turntable Guard Plates· (Mount On Underside of Turntable} 57,58
HYDRAULIC CIRCUITS, FITTINGS AND HARDWARE 129 THRU 208
Lower Hydraulics:
Left Track Drive Motor Hydraulics , 161,162
Right Track Drive Motor Hydraulics 163 16-t
1 ‘rack Drive Brake Hydraulics 169 thru 176
Track Drive Motor Drain Lines 165 H36
Track Drive Motor Pilot Control Lines 167,168
Upper Hydraulics:
Anti-Drift 147 148
Auxiliary Pump Hydraulics · (See Item 5 on Page 191)
Clutch Cylinder Hydraulics , 185,186
Counterweight Removal Hydraulics 177 thru 184
Crowd Cylinder Hydraulics 145 146
Drain Hydraulics· (Clutch, Hand and Foot Modulator Control Valvesl , , 205 thru ~011
Drain Hydraulics· (Hydraulic Oil Reservoir- see Items 36 thru 40on Page 131)
MODEL 12 0 CRAWLER
TABLE OF CONTENTS (CON’T )
HYDRAULIC CIRCUITS, FITTINGS AND HARDWARE (CON’T )
Upper Hydraulics: (Con’t )
, 3
Fast Hoist Hydraulics 151 thru 154
Hoist Cylinder Hydraulics 143,144
Main control Valves Power Sensing Hydraulics 141,142
Main Hydraulic Pumps to Main Control Valve Hydraulics 139,140
Oil Cooler Hydraulics 135 thru 138
Pilot Control Lines:
Modulator Hand and Foot Control Valves to Main Control Valves 193 thru 204
Reservoir to Pump to Valves 187 thru 192
Reservoir to Main Hydraulic Pumps and Return from Valve 131 thru 134
Supercharge Circuit 129,130
Swing Brake Hydraulics 159,160
Swing Motor Drain Lines 157,158
Swing Motor Hydraulics ; 155,156
tool Cylinder Hydraulics 149,150
HYDRAULIC COMPONENTS AND MOUNTING HARDWARE 209 THRU 274
Cylinders:
Clutch 219,220
Counterweight 215 thru 218
Crowd 211,212
Hoist _ 209,210
Tool 213,214
Hydraulic Oil Filters 223 thru 228
Hydraulic Oil Reservoir 221,222
Motors:
Swing · 233,234
Track Drive 229 thru 232
Pumps:
Auxiliary (See Item 5 on Page 191)
Main H’ ydraulic 235,236
Tandem Hydraulic 237,238
Swivels:
5-Port Hydraulic 239,240
Hydraulic Service (Used With Track Drive Motor Pilot Hydraulics) 241,242
Valves:
Anti Drift Control· (Used With Crowd and Hoist Circuits) 267,268
Anti-Drift Solenoid· (Used With Crowd and Hoist Circuits) 265,266
Counterweight Removal Control 243 thru 246
Counterweight Removal Control Reliefand Check 247,248
Main Control· (FRONT and REAR) 271,272
Main Control· (Fast Hoist 273,274
Main Control Valve Cap Arrangement and Mounting Hardware 269,270
Modulator Control
Hand Control {Used with Hoist, Crowd, Track Left and Track Right Functions} 249,250
Foot Pedal Control (Used with Swing and Tool Functions) 251 thru 254
Power Sensing Relief : 255,256
Priuwd in U S A Issued Ap1il 1977
4 MODEL 12 0 CRAWLER
TABLE OF CONTENTS (CON’T )
HYDRAULIC COMPONENTS AND MOUNTING HARDWARE (CON’T )
Valves: (Con’t )
Shut-Off (Used for Hydraulic Oil Reservoir Drain Line) · 263,264
Solenoid Control (Used with Clutch In-Out, Track Drive Lock and Range and Fast Hoist) 257,258
Swing Brake Control · 259,260
Swing Crossover Relief 261,262
Track Brake Control 259,260
ELECTRICAL 275 THRU 294
Auxiliary Pump Electrical· (See Item 29 on Page 285 or Item 28 on Page 289)
Instrument Panel and Attaching Parts 275,276
Instrument Panel with Electrical Gauges 277,278
Instrument Panel with Jumper Wires 279,280
Mounting Brackets and Attaching Parts 293,294
Wiring Harnesses:
Engine 285 thru 292
Instrument Panel , 281 ,282
Turntable , ‘ 283,284
MISCELLANEOUS 295 T H:RU 316
Air Conditioner:
Assembly and Attaching Parts · (Compressor, Condenser, Evaporator and Pump) 311 ~H 2
Compressor 315,31E
Compressor Mounting Brackets : 309,310
Electrical Schematic 313,314
Cold Weather Starting Kit 301,302
Graphic Products 295 thru 300
Heater , 307,308
Heater and Attaching Parts 303,304
Heater, Hoses and Clamps 305,306
Side Cutter for Backhoe Buckets · (See Item 23 on Page 105)
NUMERICAL INDEX 317 THRU 333

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CASE 120 CRAWLER EXCAVATOR PARTS CATALOG MANUAL S406209M2 – PDF DOWNLOAD:

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