Installation Procedure for the <NOBR>495-1258</NOBR> Chassis Wiring Gp On Certain Hydraulic Excavators {1408} Caterpillar

Introduction

Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.

Safety Section

Illustration 1	g00104545

Prevent the machine from movement. Park the machine on a level surface.

Attach a "Do Not Operate" warning tag or a similar warning tag to the start switch or to the controls before you service the equipment . These warning tags (Special Instruction, SEHS7332) are available from your AVSpare dealer.

Required Parts

Illustration 2	g06039818
495-1258 Chassis Wiring Gp

Installation Procedure

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Illustration 3	g06039824
(AL-C1) Connect to Harness (6 pole): "M968 BU", "779 WH", "E472 GN", "A464 GY", "E404 BU" (AL-C4) Connect to Bucket In Pressure Switch: "A464 GY", "235 BK" (1) 3S-2093 Cable Strap (2) 7K-1181 Cable Strap (4) 495-1259 Harness As

1. Connect (AL-C1) to the Battery and Wiring Gp harness.

2. Connect (AL-C4) to the Bucket In Pressure Switch.
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   Illustration 4	g06039830
   (AL-C5) Connect to Bucket Cylinder Head Pressure Sensor: "E472 GN", "235 BK", "E404 BU"

3. Connect (AL-C5) to the Bucket Cylinder Head Pressure Sensor.
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   Illustration 5	g06039833
   (AL-C2) Connect to Quick Coupler Unlock Solenoid: "779 WH", "235 BK" (AL-C3) Connect to Quick Coupler Hold to Run Solenoid: "M968 BU", "235 BK" (1) 3S-2093 Cable Strap (3) 476-6609 Bracket As (6) 8T-4121 Hard Washer (7) 8T-4136 Bolt

4. Connect (AL-C2) to the Quick Coupler Unlock Solenoid.

5. Connect (AL-C3) to the Quick Hold to Run Solenoid.