Cat 303C 303CR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
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Cat 303C 303CR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
SERIAL NUMBERS:
AZS02501-Up [Machine]
Description
Caterpillar 303C 303CR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Cat 303C 303CR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
SERIAL NUMBERS:
AZS02501-Up [Machine]
1. MACHINE IDENTIFICATION :
Caterpillar machines are identified by Product Identification Numbers (PIN). Some components included in a machine may be identified by Serial Numbers (S/N). Typical components that will be serialized include engines, transmissions, bulldozers, and rippers. The machine and engine are further identified by arrangement numbers and in some cases modification numbers.
- These numbers are shown on the product identification plate(s) and on the master plate in the operatorβs compartment. Caterpillar dealers need all of these numbers to determine accurate parts identification. Effective First Quarter 2001 the Caterpillar Product Identification Number (PIN) changed from 8 to 17 characters.
- In an effort to provide uniform equipment identification, Caterpillar and other construction equipment manufacturers are moving to comply with the latest version of the product identification numbering standard. Non-road machine PINs are defined by ISO 10261. The new PIN format will apply to all Caterpillar machines and generator sets.
The PIN plates and frame marking will display the 17 character PIN. The new format will look like the following:
Where:
1. Caterpillarβs World Manufacturing Code (characters
1-3)
2. Machine Descriptor (characters 4-8)
3. Check Character (character 9)
4. Machine Indicator Section (MIS) or Product Sequence
Number (characters 10-17). These were previously
referred to as the Serial Number.
Machines and generator sets produced before First Quarter 2001 will maintain their 8 character PIN format. Components such as engines, transmissions, axles, etc. and work tools will continue to use an 8 character Serial Number (S/N).
- Quality Caterpillar replacement parts are available from Caterpillar dealers throughout the world. Their parts inventories are up to date and include all parts normally required to protect your investment in Caterpillar machines.
- Dealers may offer repair kits or remanufactured parts to allow selection of the most effective repair alternative for a particular situation. When ordering parts, your order should specify the quantity, part number, part name, and the serial number/product identification number of the machine for which the parts are needed.
- Product information in this manual is presented as “information elements” that represent all of the components for the specific model. Engine Arrangement and Seat Group are examples of information elements.
- The information elements are organized alphabetically by part name and secondarily by part number within each major section of the manual.
TABLE OF CONTENTS:
Cat 303C 303CR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
AIR CLEANER GROUP 46
AIR CONDITIONER GROUP 469,471
AIR CONDITIONER LINES GROUP 478ο½483
AIR DUCT GROUP 472ο½473
AIR LINES GROUP 45
ASSIST HANDLE GROUP 401
AUXILIARY CONTROL ARRANGEMENT 198
AUXILIARY HYDRAULIC LINES GROUP 324ο½326
B
BALL VALVE ASSEMBLY 336
BATTERY AND WIRING GROUP 74ο½81
BEARING AND GEAR GROUP 182
BLADE AND MOUNTING GROUP 389ο½391
BLADE ARRANGEMENT 355ο½357
BLADE CONTROL GROUP 233ο½235
BLOCK ASSEMBLY 215ο½231
BOOM ARRANGEMENT 350
BOOM CYLINDER GUARD GROUP 363
BOOM GROUP 361
BOTTOM GUARD GROUP 164
BUCKET ARRANGEMENT 375
BUCKET GROUP 382ο½385
BUCKET LINES GROUP 333ο½334
BUCKET LINKAGE ARRANGEMENT 354
BUCKET LINKAGE GROUP 372ο½374
C
C-FRAME GROUP 393
CAB ARRANGEMENT 398ο½399
CAB GROUP 408ο½413
CAB LIGHTING GROUP 131
CAMSHAFT GROUP 25
CANOPY ARRANGEMENT 396ο½397
CANOPY GROUP 402ο½407
CARRIER ROLLER GROUP 187
CHARGING ALTERNATOR GROUP 128
CHASSIS ARRANGEMENT 155
CIRCUIT BREAKER PANEL GROUP 120ο½123
COMMON ARRANGEMENT 1
CONDENSER AND MOUNTING GROUP 463
CONNECTOR GROUP 142
CONSOLE GROUP 441ο½443
CONSOLE WIRING GROUP 82ο½99
CONTROL ARRANGEMENT 197,200,451
COUNTERWEIGHT ARRANGEMENT 172
COUNTERWEIGHT COVER GROUP 175ο½176
COUNTERWEIGHT GROUP 173ο½174
COVER ASSEMBLY 163
COVER GROUP 161ο½162,420ο½421
CRANKSHAFT ASSEMBLY 23
NAME PAGE
CRANKSHAFT GROUP 22
CRANKSHAFT PULLEY GROUP 24
CYLINDER BLOCK ASSEMBLY 20
CYLINDER BLOCK GROUP 19
CYLINDER GROUP 338ο½346
CYLINDER GUARD GROUP 362,365
CYLINDER HEAD ASSEMBLY 28
CYLINDER HEAD GROUP 27
CYLINDER LINES GROUP 327ο½331
CYLINDER STOP GROUP 375
D
DRAIN GROUP 336
E
ELECTRIC HORN GROUP 458
ELECTRIC STARTING MOTOR GROUP 73
ELECTRONIC CONTROL GROUP 501
ELECTRONICS GROUP 501
ENGINE ARRANGEMENT 16ο½17
ENGINE MOUNTING GROUP 32ο½33
ENGINE OIL COOLER GROUP 44
ENGINE OIL DRAIN GROUP 36
ENGINE OIL FILLER GROUP 35
ENGINE OIL FILTER AND MOUNTING GROUP 35
ENGINE OIL PUMP GROUP 34
EXHAUST EXTENSION GROUP 52
EXHAUST MANIFOLD GROUP 50
EXTENSION GROUP 53
F
FAN GUARD GROUP 39ο½40
FASTENER GROUP 376
FENDER COVER GROUP 165
FENDER GROUP 166
FILM GROUP 502ο½536
FINAL DRIVE GROUP 146ο½147
FIREWALL GROUP 170
FLOOD LAMP GROUP 135
FLYWHEEL GROUP 31
FOOTREST GROUP 452
FRAME ASSEMBLY 444
FRONT GEAR GROUP 31
FRONT GUARD GROUP 453ο½457
FRONT HOUSING GROUP 30
FRONT IDLER GROUP 183ο½185
FRONT LINES GROUP 267ο½283
FRONT WIRING GROUP 109ο½111
FUEL FILTER GROUP 71
FUEL FILTER LINES GROUP 68ο½69
FUEL INJECTION LINES GROUP 67
FUEL INJECTION PUMP GROUP 66
INDEX
NAME PAGE
FUEL TANK AND MOUNTING GROUP 72
G
GLOW PLUG GROUP 129
GOVERNOR CONTROL ARRANGEMENT 55ο½57
GOVERNOR CONTROL GROUP 58ο½65
GRAPPLE GROUP 386ο½388
GREASE LINES GROUP 177
GUARD ARRANGEMENT 360
H
HAMMER ARRANGEMENT 358
HEATER AND MOUNTING GROUP 470
HEATER GROUP 469
HEATER LINES GROUP 474ο½477
HOOD AND GUARD GROUP 156ο½159
HOOD GROUP 160
HYDRAULIC ARRANGEMENT 196
HYDRAULIC HAMMER GROUP 394ο½395
HYDRAULIC MOTOR GROUP 151
HYDRAULIC TANK AND FILTER GROUP 206ο½207
HYDRAULIC TANK AND MOUNTING GROUP 196
I
INLET MANIFOLD GROUP 51
INSTALLATION ARRANGEMENT 18
J
JUMPER LINES GROUP 335
K
KNOB ASSEMBLY 245
L
LEVER GROUP 445
LIGHTING GROUP 130ο½134,136ο½139
LINES GUARD GROUP 364
LINK GROUP 419
LITERATURE GROUP 537
M
MANIFOLD VALVE GROUP 318
MECHANICAL SHUTOFF GROUP 70
MONITOR AND MOUNTING GROUP 434ο½439
MOTOR AND MOUNTING GROUP 145,149
MUFFLER GROUP 54
O
OFFSET CONTROL GROUP 242
OIL PAN GROUP 24
OPERATOR ARRANGEMENT 399
OPERATOR CONSOLE GROUP 440
NAME PAGE
OPERATOR PLATFORM GROUP 422ο½429
P
PILOT LINES GROUP 286ο½297,299ο½317
PILOT OPERATED HYDRAULIC CONTROL GROUP 239,243ο½244
PILOT VALVE GROUP 236ο½238,240ο½241,250ο½253,319
PISTON PUMP GROUP 202ο½205
PLATE ASSEMBLY 171
PLATFORM ASSEMBLY 430ο½433
POWER TAKE OFF CONTROL GROUP 231ο½232
POWER TRAIN ARRANGEMENT 144
PUMP AND MOUNTING GROUP 201
PUMP LINES GROUP 284ο½285
Q
QUICK COUPLER GROUP 377ο½381
R
RADIATOR GROUP 41ο½43
REAR VIEW MIRROR GROUP 446
REDUCTION GEAR GROUP 148,154
REFRIGERANT COMPRESSOR GROUP 468
RELIEF VALVE GROUP 153
RETURN LINES GROUP 322ο½323
ROD AND PISTON GROUP 21
RUBBER PAD GROUP 194
S
SEAT BELT GROUP 458
SEAT GROUP 459
SEAT SUPPORT GROUP 461ο½462
SENSOR AND MOUNTING GROUP 141
SHUTOFF VALVE ARRANGEMENT 199
SLIDE DOOR GROUP 414ο½415
SOLENOID VALVE GROUP 320
SPECIAL ARRANGEMENT 2ο½15,484
SPROCKET GROUP 150
STARTING MOTOR FASTENER GROUP 73
STICK ARRANGEMENT 350
STICK GROUP 366ο½371
STICK LINES GROUP 332
STRAIGHT BLADE GROUP 392
SUCTION FAN GROUP 38
SWING CYLINDER LINES GROUP 266
SWING DRIVE GROUP 150
SWING FRAME GROUP 169
SWING MOTOR LINES GROUP 258ο½265
SWIVEL GROUP 337
T
TOOL GROUP 537ο½538
TRACK AND CARRIER ROLLER ARRANGEMENT 186
INDEX
NAME PAGE
TRACK ARRANGEMENT 191
TRACK ASSEMBLY 193
TRACK GROUP 188,192ο½193
TRACK GUIDE GUARD GROUP 195
TRACK LINK ASSEMBLY 194
TRACK MOTOR LINES GROUP 254ο½257
TRACK ROLLER GROUP 187
TRAVEL ALARM GROUP 347ο½348
TRAVEL AND CONTROL GROUP 248
U
UNDERCARRIAGE ARRANGEMENT 178
UNDERCARRIAGE FRAME ASSEMBLY 180ο½181
UNDERCARRIAGE FRAME GROUP 179
UPPER FRAME ASSEMBLY 168
UPPER FRAME GROUP 167
V
VALVE AND MOUNTING GROUP 208ο½211
VALVE CONTROL GROUP 246ο½247
VALVE GROUP 152,212ο½214,321
VALVE MECHANISM COVER GROUP 26
VALVE MECHANISM GROUP 29
W
WASHER BOTTLE WIRING GROUP 466ο½467
WATER PUMP ASSEMBLY 38
WATER PUMP GROUP 37
WINDOW GUARD GROUP 400
WINDSHIELD GROUP 416
WINDSHIELD WASHER GROUP 464ο½465
WIRING GROUP 112ο½116,486ο½499
CAT 303C 303CR MINI HYDRAULIC EXCAVATOR (S3Q2 ENGINE) PARTS MANUAL – PDF DOWNLOAD:
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