Cat 303C 303SR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
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Cat 303C 303SR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
SERIAL NUMBERS:
MSP00001-Up[Machine]
Description
Cat 303C 303SR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Cat 303C 303SR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
SERIAL NUMBERS:
MSP00001-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 operator’s 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. Caterpillar’s 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 303SR Mini Hydraulic Excavator (S3Q2 Engine) Parts Manual – PDF DOWNLOAD
A
NAME PAGE
ADAPTER GROUP 26
AIR CLEANER GROUP 38
AIR CONDITIONER LINES GROUP 526～531
AIR DUCT GROUP 536
AIR LINES GROUP 37
ASSIST HANDLE GROUP 467
AUXILIARY HYDRAULIC LINES GROUP 362～363
B
BATTERY AND WIRING GROUP 60～79
BEARING AND GEAR GROUP 291
BLADE AND MOUNTING GROUP 451
BLADE CONTROL GROUP 422～423
BLOCK ASSEMBLY 389～400
BOOM ARRANGEMENT 431
BOOM GROUP 436～439
BOOM LINES GROUP 370～373
BOTTOM GUARD GROUP 261～262
BUCKET GROUP 453～457
BUCKET LINES GROUP 374～375
BUCKET LINKAGE ARRANGEMENT 433
BUCKET LINKAGE GROUP 445～447
C
CAB AND MOUNTING GROUP 470～471
CAB ARRANGEMENT 465～466
CAB DOOR GROUP 484～485
CAB GROUP 472～483
CAMSHAFT GROUP 19
CANOPY ARRANGEMENT 464
CANOPY GROUP 468～469
CARRIER ROLLER GROUP 293
CHARGING ALTERNATOR GROUP 227
CHASSIS ARRANGEMENT 241
CONDENSER AND MOUNTING GROUP 537
CONDITIONER AND MOUNTING GROUP 523
CONNECTOR GROUP 224～225
CONSOLE GROUP 515～519
CONSOLE WIRING GROUP 80～111
CONTROL ARRANGEMENT 177,304
CONTROL KIT 230
COUNTERWEIGHT ARRANGEMENT 281
COUNTERWEIGHT GROUP 282～283
COVER ASSEMBLY 255～256,258～260
COVER GROUP 253～254,257～258,284
CRANKSHAFT ASSEMBLY 17
CRANKSHAFT GROUP 16
CRANKSHAFT PULLEY GROUP 18
CYLINDER BLOCK ASSEMBLY 12
CYLINDER BLOCK GROUP 11
CYLINDER GROUP 424～430
NAME PAGE
CYLINDER GUARD GROUP 440～441
CYLINDER HEAD ASSEMBLY 14
CYLINDER HEAD GROUP 13
CYLINDER LINES GROUP 376～377
E
ELECTRIC HORN GROUP 520
ELECTRIC STARTING MOTOR GROUP 226
ELECTRONIC CONTROL GROUP 229
ELECTRONICS GROUP 229
ENGINE ARRANGEMENT 8～9
ENGINE MOUNTING GROUP 285～286
ENGINE OIL FILLER GROUP 25
ENGINE OIL FILTER AND MOUNTING GROUP 25
ENGINE OIL PUMP GROUP 24
EXHAUST EXTENSION GROUP 42
EXHAUST MANIFOLD GROUP 40
EXTENSION GROUP 39
F
FAN GUARD GROUP 34
FENDER COVER GROUP 263～265
FENDER GROUP 266～267
FILM GROUP 540～566
FINAL DRIVE GROUP 234～235
FIREWALL GROUP 280
FLOOD LAMP GROUP 222
FLYWHEEL GROUP 23
FRONT GEAR GROUP 23
FRONT HOUSING GROUP 22
FRONT IDLER GROUP 287～289
FRONT LINES GROUP 318～319
FRONT WIRING GROUP 112～113
FUEL FILTER GROUP 58
FUEL FILTER LINES GROUP 56～57
FUEL INJECTION LINES GROUP 55
FUEL INJECTION PUMP GROUP 54
FUEL TANK AND MOUNTING GROUP 59
G
GEAR PUMP ASSEMBLY 313
GEAR PUMP GROUP 313
GENERAL ARRANGEMENT 1
GLOW PLUG GROUP 224
GOVERNOR CONTROL ARRANGEMENT 45
GOVERNOR CONTROL GROUP 46～53
GREASE LINES GROUP 303
H
HAMMER ARRANGEMENT 434
HEAD LAMP GROUP 223
HEATER AND MOUNTING GROUP 522
INDEX
NAME PAGE
HEATER LINES GROUP 524～525
HEATER WIRING GROUP 123
HOOD AND GUARD GROUP 242～249
HOOD ASSEMBLY 252
HOOD GROUP 250～251
HYDRAULIC ARRANGEMENT 304
HYDRAULIC HAMMER GROUP 458～459
HYDRAULIC TANK AND FILTER GROUP 310
HYDRAULIC TANK AND MOUNTING GROUP 309
I
INLET MANIFOLD GROUP 41
INSTALLATION ARRANGEMENT 10
J
JUMPER LINES GROUP 378
K
KNOB ASSEMBLY 409～410
L
LIGHTING GROUP 218
LITERATURE GROUP 566
M
MECHANICAL SHUTOFF GROUP 44
MONITOR AND MOUNTING GROUP 507～513
MOTOR AND MOUNTING GROUP 233,236
MOUNTING GROUP 506
MUFFLER GROUP 43
N
NONSEGMENTED SPROCKET GROUP 232
O
OFFSET CONTROL GROUP 419
OIL PAN GROUP 18
OPERATOR ARRANGEMENT 464
OPERATOR CONSOLE GROUP 514
OPERATOR PLATFORM GROUP 486～491
P
PILOT CONTROL GROUP 419
PILOT LINES GROUP 328～361
PILOT OPERATED HYDRAULIC CONTROL GROUP 405,407～408,410～413
PILOT VALVE GROUP 403,406,414～418
PISTON GROUP 317
PLATE ASSEMBLY 281,301,315
PLATFORM ASSEMBLY 492～503
PLATFORM SUPPORT GROUP 504～505
POWER TRAIN ARRANGEMENT 232
PRESSURE REDUCING SOLENOID VALVE GROUP 404
NAME PAGE
PUMP AND MOUNTING GROUP 311
PUMP GROUP 312
PUMP LINES GROUP 320～323
Q
QUICK COUPLER GROUP 460～463
R
RADIATOR GROUP 28～33
REFRIGERANT COMPRESSOR GROUP 538
RELIEF VALVE GROUP 240
RETURN LINES GROUP 364
ROD AND PISTON GROUP 15
ROTARY ASSEMBLY 314
RUBBER PAD GROUP 300
S
SEAT BELT GROUP 521
SEAT GROUP 521
SENSOR AND MOUNTING GROUP 448～450
SHAFT KIT 317
SOLENOID VALVE GROUP 388
SPECIAL ARRANGEMENT 2～7
SPRING GROUP 316
START SWITCH GROUP 228
STARTING MOTOR FASTENER GROUP 226
STICK ARRANGEMENT 432
STICK GROUP 442～444
STICK LINES GROUP 365～369
STOPPER KIT 316
STRAIGHT BLADE ARRANGEMENT 433
STRAIGHT BLADE GROUP 452
SUCTION FAN GROUP 27
SUPPRESSION GROUP 278～279
SWASHPLATE GROUP 314
SWING DRIVE GROUP 237
SWING MOTOR GROUP 238
SWING MOTOR LINES GROUP 326～327
SWITCH GROUP 228
SWITCH PANEL GROUP 231
SWIVEL GROUP 404
T
TOOL ARRANGEMENT 567
TOOL GROUP 568
TRACK AND CARRIER ROLLER ARRANGEMENT 292
TRACK ARRANGEMENT 296～297
TRACK ASSEMBLY 299
TRACK GROUP 294～299
TRACK GUIDE GUARD GROUP 301
TRACK LINK ASSEMBLY 300
TRACK MOTOR LINES GROUP 324～325
INDEX
NAME PAGE
TRACK ROLLER GROUP 293
TRAVEL ALARM ARRANGEMENT 308
TRAVEL AND CONTROL GROUP 420～421
U
UNDERCARRIAGE ARRANGEMENT 287
UNDERCARRIAGE FRAME GROUP 290
UPPER FRAME ASSEMBLY 274～277
UPPER FRAME GROUP 268～273
V
VALVE AND MOUNTING GROUP 379,381,383～387
VALVE GROUP 239,380,382,401～402
VALVE MECHANISM COVER GROUP 21
VALVE MECHANISM GROUP 20
W
WASHER BOTTLE WIRING GROUP 182～184
WATER PUMP ASSEMBLY 36
WATER PUMP GROUP 35
WINDSHIELD WASHER GROUP 532～535
WIRING GROUP 114～122,124～176,178～181
CAT 303C 303SR MINI HYDRAULIC EXCAVATOR (S3Q2 ENGINE) PARTS MANUAL – PDF DOWNLOAD:
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