2004/10/18 Caterpillar

Off-Highway Truck:

769D (S/N: BBB1-UP)

773E (S/N: BDA1-UP)

775E (S/N: BEC1-UP)

Quarry Truck:

771D (S/N: BCA1-UP)

Service Magazine, SEPD0753, 04 October 2004, "A New Panel Improves Accessibility Of Fuses And Relays". Effectivity for the 773E Off-Highway Truck and the 775E Off-Highway Truck has been added to this article. In addition, the quality of the graphics has been improved. Replace the article with the following information.

Description of Change: A new fuse panel is now used. With the previous configuration, the fuses and relays were not located in the same panel. With the new panel, all fuses, circuit breakers and rear cab mounted relays are accessed from a single location. The new panel is accessed from behind the operator's seat.

Adaptable To: The new fuse panel is effective with the following machines:

• 769D (S/N: BBB463-UP)

• 771D (S/N: BCA311-UP)

• 773E (S/N: BDA724-UP)

• 775E (S/N: BEC464-UP)

The new fuse panel is not adaptable to any of the previous machines.

The illustrations below show the changes to the fuse panel.

Illustration 1	g01115327
View of previous fuse panel

Illustration 2	g01115328
View of new fuse panel (with cover)

Illustration 3	g01115330
View of new fuse panel (without cover)

Illustration 4	g01113932
Location of components (new configuration)

Illustration 5	g01108873
Label for fuse compartment (new configuration)

Illustration 6	g01108874
Label for cover (new configuration)

Illustration 7	g01108875
Connector pins for relay (new configuration)

Illustration 8	g01108896
Schematic for new fuse box (battery connection)

Illustration 9	g01108898
Schematic for new fuse box (ignition switch connection)

Table 1

Caterpillar Part Numbers for New Fuse Panel Block
Part Number	Description
242-1547	Fuse Block As
113-8490	Fuse (10-AMPERE)
113-8491	Fuse (15-AMPERE)
248-2841	Relay As

Table 2

Mating Connectors for Harness
Part Number	Wire (Number and Color)
242-6113	E-YL
242-6115	F-RD
242-6117	G-OR
242-6119	H-BR
173-3139	A-BK
173-3141	B-GY
179-1311	C-GN
179-1312	D-BU

Table 3

Miscellaneous Components
Part Number	Description
101-8105	Connection Socket (16-AWG TO 18-AWG)
173-8914	Connector Socket (12-AWG TO 14-AWG)
7R-2751	Connector Plug
7R-2750	Connector Seal
128-4123	Seal
173-8933	Connector Lock