450E Backhoe Loader Machine Electronic Control System Location of Electrical Components Caterpillar

Illustration 1	g01240244
Steering Console controls (1) Parking Brake Indicator (2) High Beam and Right Turn Indicators (3) Hazard Switch (4) Turn Indicator/Lights/Wiper Control Lever (5) Transmission Control Lever

The steering console includes the features that are described below.

The indicators for left turn and parking brake (1) are located at the left side of the steering console. The indicators for high beam and right turn (2) are located on the right side of the steering console. The hazard switch (3) is also located on the steering console. On the right side of the steering column is the turn signal/lights/wiper control lever (4). The transmission control lever (5) is on the left of the steering column.

Illustration 2	g01445429
(6) Differential Lock Switch (7) Left Brake Pedal (8) Right Brake Pedal (9) Steering Column Tilt Lever (10) Accelerator Pedal (11) Storage Compartment

The differential lock switch (6), the left brake pedal (7), the right brake pedal (8), steering column tilt lever (9) and the accelerator pedal (10) are located below the steering column. A large storage compartment (11) is located below the front dash.

Illustration 3	g01445439
(12) Transmission Neutral Switch (13) All Wheel Drive Switch (14) Service Hour Meter (15) Blank

Illustration 4	g01445454
(16) Autoshift Switch (17) Ride Control Switch (18) Roading Lights Switch (if equipped - shown as blank) (19) Horn Switch (if equipped - shown as blank) (20) Blank

Illustration 5	g03284817
(21) Switch Panel (22) Gauge Cluster (23) 10-Position Rotary Throttle (24) Left Stabilizer Control Lever (25) Right Stabilizer Control Lever (26) Boom Lock Lever

Illustration 6	g03284980
(27) Key Start Switch (28) Engine Coolant Temperature Gauge (29) Tachometer Gauge (30) Monitor Display (31) Fuel Level Gauge (32) Front Flood Lights Switch (33) Monitor Display Navigation Switches (34) Rear Flood Lights Switch (35) Rear Wash/Wipe Switch (36) Hoe Continuous Flow Switch (37) Implement Lockout Switch (38) HVAC Selector Switch (39) Temperature Dial (40) Fan Speed Switch (41) Auto Engine Speed Control (AESC) Switch

The right console contains the key start switch (27) located to the left of the gauge cluster. The gauge cluster includes the engine coolant temperature (28), tachometer (29) and fuel level gauges (31). The monitor display (30) is in the center of the gauge cluster. The following switches are located below the gauge cluster:

• Front Flood Lights Switch (32)

• Monitor Display Navigation Switches (33)

• Rear Flood Lights Switch (34)

• Rear Wash/Wipe Switch (35)

• Hoe Continuous Flow Switch (36)

• Implement Lockout Switch (37)

• HVAC Selector Switch (38)

• Temperature Dial (39)

• Fan Speed Switch (40)

• Auto Engine Speed Control (AESC) Switch (41)

Illustration 7	g01445507
(46) Parking Brake Lever (47) Parking Brake Release (48) MP Bucket Control (if equipped) (49) Loader Joystick (50) Transmission Neutralizer Switch

The joystick for the loader (49) uses a mechanically controlled loader valve. Located on the front of the joystick is the transmission neutralizer switch (50). The parking brake release lever (47) is located at the front of the parking brake lever.

Illustration 8	g01445519
Backhoe Controls (Pilot Controlled Valve configuration) (51) Backhoe Joysticks (52) Boom Lock Lever (53) Pilot Control Pod Lever

The backhoe joysticks (51) with a pilot controlled backhoe valve are shown. The left pilot joystick is equipped with thumb switches to control the auxiliary functions (if equipped) and a horn switch. The right joystick is equipped with a thumb switch to control the Extendable-Stick (if equipped) or a hammer (if installed). The boom lock lever (52) locks the boom in place for machine travel. The pilot control pod lever (53) allows adjustment of the pilot lever pods.

Illustration 9	g01445520
Backhoe Controls (Mechanical Controlled Valve configuration) (54) Backhoe Levers

The 450E machine with a Mechanical Control backhoe will have a four-lever control configuration. A two-lever mechanically controlled configuration of the backhoe joysticks (54) is shown.

Illustration 10	g01445525
Left Console (55) Joystick Pattern Switch (56) Storage Compartment

The default pattern for the joystick is the "excavator" pattern. The alternate pattern for the joystick is the "backhoe" pattern. The pattern for the joystick is selected using the joystick pattern switch (55) which is located to the right of the operator seat. A storage compartment (56) is also located next to the pattern switch for the joystick.

Illustration 11	g01445526
(55) Joystick Pattern Switch (57) Joystick Pattern Decal

The switch for the joystick pattern (55) controls two solenoids that allow the backhoe controls to change from an "excavator" to a "backhoe" control pattern. Press the top of the switch in order to select the "excavator" pattern. Press the bottom of the switch in order to select the "backhoe" pattern.

Note: A decal (57) illustrates the joystick pattern options.

Illustration 12	g01445536
(58) 12 V Power Port (Right Side) (59) Cat ET Connector (60) Fuse Panel

Located inside the right door is the Cat Electronic Technician (ET) connector (59) and the fuse panel (60). The cover to the fuse panel has been removed in Illustration 12.

Illustration 13	g01445540
(61) 12-Volt Power Port (Left Side)

Located inside the door on each side of the machine are two 12-volt power ports (58) (61).

Illustration 14	g01445558
(59) ET Connector (60) Fuse Panel (62) Fuse Panel Cover (63) Decal

The fuse panel (60) is shown with the cover (62) removed. The fuse panel includes a decal (63) that lists the machine fuses and relays.

Note: There are six fuses (not visible) for the three power relay modules. The fuses are located next to the fuse panel. Part of the console must be removed to access the power relay module fuses.