Caterpillar 330D Excavator Electrical System Schematic

Feature

INTERACTIVE SCHEMATIC Bookmarks X Options This document is best viewed at a screen resolution of 1024 X 768. Features Cover Page Information Component Table To set your screen resolution do the following: RIGHT CLICK on the DESKTOP . Select PROPERTIES . CLICK the SETTINGS TAB . MOVE THE SLIDER under SCREEN RESOLUTION until it shows 1024 X 768 . CLICK OK to apply the resolution. Tap Table Fluid Power Symbols Electrical Symbols Schematic Machine Views Front Frame Rear Frame Tap Views The Bookmarks panel will allow you to quickly navigate to points of interest. EC-C3 EC-C2 E-C60 E-C61 Click on any text that is BLUE and underlined.

These are hyperlinks that can be used to navi- gate the schematic and machine views. EC-C1 When only one callout is showing on a machine view this button will make all of the callouts visible. This button is located in the top right corner of every machine view page. VIEW ALL CALLOUTS HOTKEYS (Keyboard Shortcuts) F UNCTION KEYS Zoom In “CTRL” / “+” Zoom Out “CTRL” / “-” Fit to Page “CTRL” / “0” (zero) Hand Tool “SPACEBAR” (hold down) Find “CTRL” / “F”

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Component Location

RENR9599-05 April 2010 Electrical System 336D MHPU 330D and 336D Excavator 330D: GBC1-UP GGE1-UP THJ1-UP LRM1-UP ERN1-UP HAS1-UP RAS1-UP T2Y1-UP 336D: JBF1-UP KDJ1-UP MYP1-UP DTS1-UP WET1-UP 336D MHPU: M3M1-UP M3N1-UP Volume 1 of 3: Engine and Chassis Volume 3 of 3: Cab Area Volume 2 of 3: Platform and Console Area © 2010 Caterpillar, All Rights Reserved Printed in U.S.A.

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Volume 1 of 3 - Engine and Chassis

Volume 1 of 3 - ENGINE AND CHASSIS COMPONENT LOCATION Machine locations are repeated for components located close together. E = Located around hydraulic oil tank.

G =Located under operator's platform H =Located inside of pump compartment Component Schematic Location Machine Location Component Schematic Location Machine Location Alarm - Travel B-11 7 Sensor - Injection Actuation Pressure A-16 42 Alternator H-16 23 Sensor - Intake Manifold Air Temperature B-16 31 Assembly - Block H-3 2 Sensor - Pressure OLWD D-6 12 Battery - Front H-6 4 Sensor - Primary Engine Speed Timing B-16 27 Battery - Front (Attch) H-6 4 Sensor - Pump 1 Pressure B-14 H Battery - Rear H-6 4 Sensor - Pump 2 Pressure B-14 H Battery - Rear (Attch) H-6 4 Sensor - Secondary Engine Speed Timing B-16 28 Breaker - Alternator I-2 2 Sensor - Squeeze Pressure C-8 12 Breaker - Heater H-2 2 Sensor - Turbo Outlet Pressue B-16 30 Breaker - Main H-2 2 Sensor - Water Seperator Level K-12 3 Control - Engine H-18 25 Solenoid -1 Way / 2 Way Change C-8 12 Control - Gateway K-16 1 Solenoid - Ether K-11 13 Control - Machine G-2 1 Solenoid - Fine Swing C-6 12 Diode - Start Relay I-3 2 Solenoid - Flow Limit A-14 H Ground - ECM Mount I-16 1 Solenoid - Heavy Lift F-6 5 Ground - Frame 1 G-11 14 Solenoid - Hydraulic Lock G-6 5 Ground - Frame 2 F-15 15 Solenoid - IAPCV A-16 41 Ground - Frame 3 G-17 21 Solenoid - Injector Cylinder #1 E-15 35 Ground - Frame 4 A-8 9 Solenoid - Injector Cylinder #2 E-14 36 Ground - Frame 5 1 H-3 2 Solenoid - Injector Cylinder #3 E-14 37 Ground - Frame 5 2 K-18 1 Solenoid - Injector Cylinder #4 E-14 38 Ground - Frame 6 H-6 4 Solenoid - Injector Cylinder #5 E-14 39 Heater - Air (Glow Plug) A-16 49 Solenoid - Injector Cylinder #6 E-13 40 Horn - Forward Warning LH (Low) B-6 12 Solenoid - Power Shift Pressure A-14 H Horn - Forward Warning LH (High) B-6 12 Solenoid - Quick Coupler High E-6 12 Indicator - Air Cleaner K-11 13 Solenoid - Quick Coupler Low E-6 12 Indicator - Hydraulic Oil Filter A-11 E Solenoid - Radiator Fan Speed Cont.

B-14 H Lamp - Boom LH B-6 33 Solenoid - Relief 1 C-8 12 Lamp - Boom RH B-6 34 Solenoid - Relief 1 Check C-8 12 Lamp - Chassis A-6 6 Solenoid - Relief 2 C-8 12 Motor - AC Condenser Fan J-11 50 Solenoid - Relief 2 Check C-8 12 Motor - Starter G-17 22 Solenoid - Reversing Fan Change G-8 H Motor - Washer G-3 2 Solenoid - Stem 1 Extend A-12, B-12 H Motor - Washer Lower G-3 2 Solenoid - Stem 1 Retract A-12, B-12 H Motor - Priming Fuel Pump L-12 3 Solenoid - Stem 2 Extend A-12 H Receptacle - Jump Start H-6 4 Solenoid - Stem 2 Retract A-12 H Relay - Air Heater A-16 16 Solenoid - Stem 3 Extend A-14 H Relay - Start H-3 2 Solenoid - Stem 3 Retract A-14 H Resistor - Can 1 C-3 2 Solenoid - Swing Brake G-6 5 Resistor - Can 2 C-3 2 Solenoid - Travel Speed G-6 5 Sender - Hydraulic Temperature A-11 E Solenoid - Travel Straight G-6 5 Sensor - Ambient Temperature K-12 3 Switch - Coolant Level K-12 3 Sensor - Atmospheric Pressure A-16 32 Switch - Disconnect H-3 2 Sensor - Engine Coolant Temperature B-16 29 Switch - Engine Oil Level G-17 18 Sensor - Engine Oil Pressure A-16 26 Switch - Fuel Pressure L-12 3 Sensor - Engine Speed Pickup G-17 20 Switch - Hydraulic Oil Level B-11 11 Sensor - Fuel Level B-10 10 Switch - Priming Pump L-12 3 Sensor - Fuel Pressure K-12 3 Switch - Refueling A-4 5 Sensor - Fuel Temperature L-12 3

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Volume 2 of 3 - Platform and Console Area

COMPONENT LOCATION Volume 2 of 3 - PLATFORM AND CONSOLE AREA Machine locations are repeated for components located close together. A = Located inside of cab, operator's platform B = Located inside of right console. G = Located under operator's platform C = Located inside of left console.

D = Located inside cab at rear J = Located in operator's seat Component Schematic Location Machine Location Component Schematic Location Machine Location Converter- 12v-7a 1 (atch) D-4 G Switch- Horn E-3 C Converter- 12v-7a 2 (atch) D-4 G Switch- Idle- One Touch Low C-3 B Diode- Accessory C-7 G Switch- Joystick- Left Hand 3 (atch) F-3 C Diode- Hyd Lock C-7 G Switch- Joystick- Right Hand 3 (atch) C-3 B Ground- Frame 7 F-12 G Switch- Key B-2 B Ground- Platform E-9 G Switch- Neutral Start Limit F-3 C Heater - Seat (atch) C-4 J Switch- Pressure- Aux Pump (atch) E-1 G Indicator- Unit B-2 B Switch- Pressure- High (atch) D-1 G Joystick- Left Hand (atch) E-3 C Switch- Pressure- Medium (atch) E-1 G Joystick- Right Hand (atch) C-3 B Switch- Pressure- Travel Left D-1 G Key Reader- Mss (atch) C-3 B Switch- Pressure- Travel Right D-1 G Switch- Aux Pedal (atch) E-1 A Switch- Pressure-travel Straight (atch) D-1 G Switch- Backup Epr Valve A-4 B Switch- Secondary Shutdown A-11 G Switch- Backup Governor B-4 B Switch- Throttle Position B-2 G Switch- Exciter Coil (atch) C-2 B

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