PDF Parts Manual Cat 345B & 345BL Track Type Excavators - 2 MB
The official parts manual for the Caterpillar 345B and 345BL Track Type Excavators with the 3176C engine.
This manual contains detailed exploded diagrams and a complete list of part numbers for every component.
It is an indispensable resource for ordering correct parts and performing accurate repairs.
Minimize downtime and ensure the longevity of your machine with this essential guide.
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--- Page 3 ---
INDEX
Name Page Name Page
HOUSING GP - FRONT .......................................................... 35 LINES GP - TRAVEL MOTOR...............................................330
LINES GP - TURBOCHARGER OIL........................................58
I LINES GP - WATER .................................................................73
LINK AS - TRACK ..................................................................256
IDLER GP - FRONT............................................................... 235 LINKAGE AR - BUCKET ........................................................520
INDICATOR AS ..................................................................... 290 LINKAGE GP - BUCKET........................................................541
INSTALLATION AR - ENGINE ................................................. 12 LITERATURE GP ...................................................................498
LUBRICATION AR - AUTOMATIC..........................................515
K
M
KNOB AS .............................................................................. 391
MANIFOLD GP - EXHAUST.....................................................87
L MANIFOLD GP - INLET ...........................................................86
MIRROR GP - REAR VIEW ...................................................476
LAMP GP - FLOOD .......................................................... 183.02 MONITOR GP - OPERATOR .................................................454
185 MOTOR & MTG GP - SWING..............................................370
LEVER AS ............................................................................. 481 MOTOR & MTG GP - TRAVEL.............................................379
LIFTER GP - VALVE ................................................................ 32 MOTOR AS - WINDOW WIPER............................................463
LIFTING GP - ENGINE............................................................ 34 469.03
LIGHTING GP - BOOM ......................................................... 180 MOTOR GP - FAN DRIVE.....................................................437
LIGHTING GP - CAB ............................................................. 182 MOTOR GP - SWING ............................................................372
LIGHTING GP - CHASSIS................................................ 183.01 MOTOR GP - TRAVEL ...........................................................380
184 MOUNTING GP - AIR CLEANER............................................79
LINES GP - AIR ....................................................................... 81 MOUNTING GP - ENGINE ......................................................46
LINES GP - AIR CONDITIONER .......................................... 512 MOUNTING GP - ENGINE OIL FILTER .................................61
LINES GP - AUXILIARY HYDRAULIC................................... 318 MOUNTING GP - FAN DRIVE ................................................50
325.01 MOUNTING GP - GREASE GUN .........................................208
LINES GP - BOOM................................................................ 314 MOUNTING GP - REFRIGERANT COMPR ............................49
LINES GP - BOOM CYLINDER ............................................ 309 MOUNTING GP - VALVE .......................................................395
LINES GP - BUCKET CYLINDER......................................... 312 MOUNTING GP - VALVE MECHANISM .................................47
LINES GP - DRAIN .................................................................. 91 MUFFLER GP ..........................................................................89
LINES GP - FAN DRIVE PUMP PILOT ............................... 365
LINES GP - FRONT............................................................... 356
P
LINES GP - FUEL.................................................................... 98
LINES GP - FUEL INJECTION ............................................... 96 PAN GP - OIL...........................................................................42
LINES GP - GREASE ............................................................ 528 PANEL GP - CIRCUIT BREAKER .........................................124
LINES GP - HYDRAULIC OIL COOLER .............................. 340 PISTON & ROD GP ...............................................................25
LINES GP - OIL DRAIN ..................................................... 53.02 PLATE & FILM GP ...............................................................574
LINES GP - PILOT................................................................. 344 PLATFORM GP - OPERATOR ...............................................477
LINES GP - PUMP................................................................. 336 PLUG GP ...............................................................................408
LINES GP - RETURN & FILTER .......................................... 362 PLUG GP - CYLINDER BLOCK ..............................................43
LINES GP - STICK ................................................................ 320 PLUG GP - FRONT HOUSING ...............................................45
LINES GP - STICK CYLINDER............................................. 311 PLUG GP - WATER LINES .....................................................77
LINES GP - SWING MOTOR................................................ 364 PROTECTOR GP...................................................................571
--- Page 4 ---
ENGINE ARRANGEMENT
Consists of :
Page
BASIC ENGINE
PULLEY GPREF COMPRESSOR & ALT .................................
SEAL GPCRANKSHAFT ............................................................
SUPPORT GPENGINE...............................................................
LIFTING GPENGINE ..................................................................
LUBRICATION SYSTEM
COVER GPOIL FILTER BASE ..................................................
FILLER GPENGINE OIL ............................................................
FILTER GPENGINE OIL ............................................................
GAUGE GPOIL LEVEL (DIPSTICK) ..........................................
LINES GPTURBOCHARGER OIL .............................................
COOLING SYSTEM
COOLER GPENGINE OIL .........................................................
FASTENER GPOIL COOLER ....................................................
LINES GPWATER.......................................................................
LINES GPWATER.......................................................................
LINES GPWATER.......................................................................
PLUG GPWATER LINES ...........................................................
H75069E 07
1482005 ENGINE ARCOMPLETE (2/3)
S/N 6MW 00213Up, 8RW 00273Up
Part of 1477107Page11
XEBP7720 15.02
--- Page 5 ---
BASIC ENGINE
NOTE No. PART No. QTY PART NAME
COVER
6 BOLT (L=30mm)
2 WASHER
: BOLT (L=20mm)
% GASKET
SEALORING (ID=177.17mm)
% SEAL GP
H58193E 01
1161091 SEAL GPCRANKSHAFT
Part of 1482005Page14
XEBP7720 23
--- Page 6 ---
BASIC ENGINE
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
ARM
ARM AS
& ޓBALL
ޓBEARING
ARM
% SCREW
6 NUT
9 BUTTON
. SEALORING (ID=10.77mm)
SHAFT AS
5 ޓPLUG
ޓPIN
SUPPORT AS
8 ޓDOWEL
; SCREW
; NUT
H58190E 01
1159397 ROCKER ARM GP
Part of 1172749Page31
XEBP7720 33
--- Page 7 ---
BASIC ENGINE
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
5 PLUG
8 SEALORING (ID=11.89mm)
H58185E 01
1152984 PLUG GPCYLINDER BLOCK
Part of 1482005Page13
XEBP7720 43
--- Page 8 ---
LUBRICATION SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
4 FILTER AS
BASE AS
CONNECTOR
% VALVE
, SEALORING (ID=8.92mm)
ELBOW
2 SEALORING (ID=29.74mm)
ELBOW
HOSE AS
COVER
ADAPTER
8 SEALORING (ID=100.97mm)
; BASE GP
BOLT (L=30mm)
8 WASHER
% SEALORING (ID=43.82mm)
8 SEALORING (ID=53.34mm)
% CAP
Y㧙SEE SEPARATE ILLUSTRATION
H58224E 01
1446648 FILTER GPENGINE OIL
S/N 6MW 100212, 8RW 100272
Part of 1482005Page14
1220725Page58.02
XEBP7720 53
--- Page 9 ---
LUBRICATION SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
: STUD 5 PLUG
/ WASHER . SEALORING (ID=16.36mm)
BASE AS 8 SEALORING (ID=34.59mm)
$ ޓPLUG
2 ޓPLUG
9 ޓSTUD
2 ޓSTUD
8 BOLT (L=25mm)
% COVER
% SPRING AS
0 ޓSPRING
VALVE
8 BOLT (L=70mm)
% SEAT
% RETAINER
% SPACER
# SPRING
2 PLUNGER
% SPRING AS
/ ޓSPRING
H69195E 00
1661329 BASE GPOIL FILTER
S/N 6MW 00213Up, 8RW 00273Up
Part of 1446648Page53.01
XEBP7720 59
--- Page 10 ---
COOLING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
2 WASHER
6 BOLT (L=25mm)
6 BOLT (L=35mm)
: WASHER
SUPPORT AS
SUPPORT AS
SUPPORT AS
6 BOLT (L=30mm)
ADAPTER
; DRIVE GP
6 WASHER
6 BOLT (L=50mm)
6 WASHER
6 BOLT (L=35mm)
2 CLAMP
6 BOLT (L=20mm)
TANK AS
ޓCAP AS
ޓCAP
; BAND
' ; HOSE̖(73cm)
- STRAP
' 2 HOSE̖(90cm)
8 ELBOW
STRAP
LOCKWASHER
$ BUSHING
6 BOLT (L=20mm)
6 WASHER
2 WASHER
6 BOLT (L=25mm)
SUPPORT AS
E㧙ORDER BY THE CENTIMETER
Y㧙SEE SEPARATE ILLUSTRATION
H59491E 15
1241674 RADIATOR & FAN GP (2/2)
S/N 6MW 100168, 8RW 100237
1373750Page41
XEBP7720 67
--- Page 11 ---
COOLING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
' WASHER
8 BOLT (L=50mm)
TUBE
. SEALORING (ID=31.12mm)
FLANGE
' GASKET
H58216E 01
1165460 LINES GPWATER
Part of 1482005Page14
XEBP7720 73
--- Page 12 ---
AIR INLET AND EXHAUST SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
BODY AS
ELEMENT AS
ELEMENT AS
INDICATOR AS
VALVE (VACUATOR)
COVER AS
ޓFILM
ޓLATCH
H84587E 03
1398790 AIR CLEANER GP
S/N 6MW 00169Up, 8RW 00239Up
Part of 1398839Page79
XEBP7720 80.01
--- Page 13 ---
AIR INLET AND EXHAUST SYSTEM
NOTE No. PART No. QTY PART NAME
ELBOW
6 PLUG
% SEALORING (ID=82.22mm)
CLAMP
H58140E 00
1260081 LINES GPAIR
Part of 1482005Page15
XEBP7720 85
--- Page 14 ---
FUEL SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
PUMP GP
6 BOLT (L=25mm)
& GASKET
4 CONNECTOR
, SEALORING (ID=11.89mm)
TUBE AS
5 CLIP
8 BOLT (L=20mm)
8 WASHER
WASHER
H58236E 07
1165428 PUMP & MTG GPFUEL TRANSFER
Part of 1482005Page15
XEBP7720 95
--- Page 15 ---
FUEL SYSTEM
NOTE No. PART No. QTY PART NAME
, SEALORING (ID=11.89mm)
: CONNECTOR
H58238E 03
1170184 FITTING GPFUEL RETURN
Part of 1482005Page15
XEBP7720 103
--- Page 16 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
CLIP
6 BOLT (L=20mm)
; GROMMET
5 STRAP
6 NUT
6 WASHER
+ ROD
% NUT
6 WASHER
6 BOLT (L=16mm)
BRACKET AS
6 BOLT (L=25mm)
CLIP
STRAP
CLIP
; CABLE AS
6 BATTERY
9 HOLDDOWN
; CABLE AS
; CABLE AS
+ GROMMET
) CLAMP
) SPACER
) WASHER
6 BOLT (L=50mm)
+ GROMMET
: WASHER
6 BOLT (L=12mm)
BRACKET AS
STRAP AS
BRACKET AS
; HARNESS AS
Y㧙SEE SEPARATE ILLUSTRATION
H68130E 01
1495072 BATTERY & WIRING GP (2/3)
S/N 6MW 0016100168, 8RW 0023300237
1495073Page118.01,1160080,1254727Page121,1288884Page122
XEBP7720 109.04
--- Page 17 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
CLIP
6 BOLT (L=20mm)
5 STRAP
6 WASHER
BRACKET AS
6 BOLT (L=16mm)
6 BOLT (L=40mm)
CLIP
BRACKET AS
6 BOLT (L=25mm)
CLIP
STRAP
) STRAP AS
; GROMMET
CLIP
STRAP AS
SPACER
BRACKET AS
; HARNESS AS
; PANEL GP
Y㧙SEE SEPARATE ILLUSTRATION
H67995E 05
1495072 BATTERY & WIRING GP (1/3)
S/N 6MW 00178Up, 8RW 00250Up
1673537Page115.06,1495075Page125.09
XEBP7720 109.14
--- Page 18 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
5 STRAP RECEPTACLE KIT
: TERMINAL AS PLUG KIT
RECEPTACLE KIT ' WEDGE
PLUG KIT RECEPTACLE KIT
RECEPTACLE KIT ' WEDGE
' WEDGE . TERMINAL
' WEDGE
' WEDGE
6 TERMINAL
9 PIN
6 PIN
9 SOCKET
6 SOCKET
6 PLUG
PLUG KIT
RECEPTACLE KIT
' WEDGE
' WEDGE
PLUG KIT
' WEDGE
H84835E 00
1495074 HARNESS AS (1/3)
S/N 6MW 0016100168, 8RW 0023300237
Part of 1495072Page109.02
XEBP7720 115
--- Page 19 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
PLUG KIT PLUG KIT
' WEDGE ' WEDGE
6 SOCKET ) TERMINAL
9 SOCKET
6 PLUG
6 PIN
PLUG KIT
' WEDGE
; TERMINAL
RECEPTACLE KIT
' WEDGE
. TERMINAL
9 PIN
PLUG KIT
5 STRAP
' WEDGE
; TERMINAL
; TERMINAL
RECEPTACLE KIT
' WEDGE
H57743E 00
1431600 HARNESS AS (2/3)
S/N 6MW 100160, 8RW 100232
Part of 1431643Page107
XEBP7720 117
--- Page 20 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
6 TERMINAL
PLUG KIT
' WEDGE
6 SOCKET
9 SOCKET
6 PLUG
6 PIN
RECEPTACLE KIT
' WEDGE
PLUG KIT
' WEDGE
' HOSE̖(90cm)
HOUSING
SEAL
TERMINAL
HOUSING
E㧙ORDER BY THE CENTIMETER
H84852E 00
1673538 HARNESS AS (3/3)
S/N 6MW 00178Up, 8RW 00250Up
Part of 1495072Page109.16
XEBP7720 118.09
--- Page 21 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
BRACKET AS
6 BOLT (L=16mm)
6 WASHER
COVER
% SCREW
WASHER
: BOLT (L=10mm)
: WASHER
RELAY
CLIP
; SWITCH AS (START RELAY)
CLIP
; HARNESS AS
WIRE AS
. ޓTERMINAL
. ޓTERMINAL
CLIP
5 STRAP
' SCREW
WASHER
BRACKET AS
6 SWITCH AS (MAIN RELAY)
( ޓNUT
8 ޓNUT
8 ޓNUT
Y㧙SEE SEPARATE ILLUSTRATION
H84800E 00
1495075 PANEL GPCIRCUIT BREAKER (1/2)
S/N 6MW 0016100168, 8RW 0023300237
Part of 1495072Page109.02
1495076Page126.01,1251302Page128
XEBP7720 125.02
--- Page 22 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
; TIMER AS
6 SCREW
RESISTOR AS
STRIP
WIRE AS
. ޓTERMINAL
CABLE AS
) ޓTERMINAL
CABLE AS
) ޓTERMINAL
2 ޓTERMINAL
6 WASHER
5 BREAKER AS
* ޓLOCKWASHER
8 ޓNUT
6 ޓWASHER
8 SCREW
; 0 SWITCH AS (DISCONNECT)
' PLATE (INSTRUCTION)
: BOLT (L=10mm)
: WASHER
CABLE AS
) ޓTERMINAL
WIRE AS
. ޓTERMINAL
BLOCK
CABLE AS
) ޓTERMINAL
CABLE AS
) ޓTERMINAL
2 ޓTERMINAL
BUS
RELAY
SCREW
Y㧙SEE SEPARATE ILLUSTRATION
H68009E 04
1495075 PANEL GPCIRCUIT BREAKER (2/2)
S/N 6MW 00178Up, 8RW 00250Up
Part of 1495072Page109.14
7N0718Page127,1114870Page129
XEBP7720 125.12
--- Page 23 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME
* LOCKWASHER
* NUT
( LOCKWASHER
( NUT
* KEY
H56260E 13
7N0718 SWITCH ASDISCONNECT
Part of 1431602Page125,1495075Page125.04
XEBP7720 127
--- Page 24 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
ANTENNA AS
ޓROD AS
; ޓSCREW AS
5 STRAP
; SPEAKER AS
; ޓTERMINAL
% SCREW
SCREW
' GUARD̖(9cm 2)
8 SCREW
8 SCREW
BRACKET AS
E㧙ORDER BY THE CENTIMETER
H54584E 04
1114844 WIRING GPRADIO
AM/FM Radio
Part of 1114693,1532506Page470
An Attachment
XEBP7720 133
--- Page 25 ---
ELECTRICAL AND STARTING SYSTEM
NOTE No. PART No. QTY PART NAME NOTE No. PART No. QTY PART NAME
6 PIN
RECEPTACLE KIT
' WEDGE
CONNECTOR