2004/11/01 Improved Mounting of the Power Distribution Box {7426} Caterpillar

Improved Mounting of the Power Distribution Box {7426}

2004/11/01 [SEBD9339]

2004/11/01 Improved Turbocharger Groups {1052}

2004/11/01 Circuit Breakers - Steps to Consider When Resetting {1420}

ELECTRICAL AND STARTING SYSTEM

BOX GP

2004/11/01 Improved Mounting of the Power Distribution Box {7426}

Engine:
3508B (S/N: S2B1-UP; S2D1-UP; S2E1-UP)
3512B (S/N: S2H1-UP; S2J1-UP; S2L1-UP; S2M1-UP)
3516B (S/N: S2P1-UP; S2R1-UP; S2S1-UP; S2W1-UP; S2X1-UP; S2Y1-UP)

Description of Change: The mounting of the power distribution box has been improved. Flexible mounts have been added to the mounting group. This will provide isolation of vibration and increased service life of the power distribution box .

Adaptable To: The newly designed 231-7874 Box Mounting Gp is adaptable to all of the above engines. New 231-7874 Box Mounting Gp that are ordered will include the flexible mounts.

Table 1 lists the parts that are required in order to adapt to the new design.

The improved design of the mounting for the power distribution box is effective with the following engines that are listed in Table 2.

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Table 1
Required Parts
Quantity	Part
4	4P-0870 Flexible Mounts
4	1C-2251 Bolts

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Illustration 1	g01121586
(1) Flexible mount (2) Bolt

(2) Bolt

Torque ... 25 N·m (18 lb ft)

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Table 2
Effective Serial Number
S/N:S2B117-UP
S/N:S2D109-UP
S/N:S2E160-UP
S/N:S2F103-UP
S/N:S2H116-UP
S/N:S2J125-UP
S/N:S2K108-UP
S/N:S2L179-UP
S/N:S2M110-UP
S/N:S2N106-UP
S/N:S2P101-UP
S/N:S2R109-UP
S/N:S2S126-UP
S/N:S2W102-UP
S/N:S2X166-UP
S/N:S2Y104-UP