Installation Procedure for the 465-3300 Lines Gp - Coupler on Certain Backhoe Loaders{5057} Caterpillar

Installation Procedure for the 465-3300 Lines Gp - Coupler on Certain Backhoe Loaders{5057}

Usage:

7WW

Backhoe Loader:: 450F (S/N: HJR1-UP)
Work Tool:: QUICK COUPLER (S/N: ARJ1-UP; 7WW1-UP)

Introduction

This special instruction covers the installation procedure for 465-3300 Lines Gp - Coupler .

The coupler lines group consists of a switch in the cab, and a control valve, and pressure lines which supply hydraulic pressure to the quick coupler. The switch has two positions that are used for coupling and uncoupling the work tool. Pressure for the operation of the quick coupler is supplied by the brake system accumulator.

Safety Section

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates.

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Personal injury can result from hydraulic oil pressure and hot oil.
Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

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Personal injury or death can result from improperly checking for a leak.
Always use a board or cardboard when checking for a leak. Escaping air or fluid under pressure, even a pin-hole size leak, can penetrate body tissue causing serious injury, and possible death.

If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.

Welding Requirements

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Personal injury or death can result from fumes, gases and ultraviolet rays from the weld arc.
Welding can cause fumes, burn skin and produce ultraviolet rays.
Keep your head out of the fumes. Use ventilation, exhaust at the arc, or both, to keep fumes and gases from your breathing area. Wear eye, ear and body protection before working.
Protect yourself and others; read and understand this warning. Fumes and gases can be dangerous to your health. Ultraviolet rays from the weld arc can injure eyes and burn skin. Electric shock can cause death.
Read and understand the manufacturer's instructions and your employer's safety practices. Do not touch live electrical parts.
See "American National Standard Z49.1, Safety in Welding and Cutting" published by the American Welding Society.
American Welding Society
2501 N.W. 7th Street
Miami, Florida 33125

See "OSHA Safety and Health Standards, 29 CFR 1910", available from U.S. Department of Labor.
U.S. Department of Labor
Washington, D.C. 20210

Welding quality is critical to the success of the installation procedures. Welds must be smooth and continuous. Do not undercut the welds. No overlap is allowed. Grind the ends of the welds to a smooth radius.

All electrodes must be dried completely. The electrodes can be dried by heating the electrodes to 300°C (572°F). The electrodes must be dried for at least 30 minutes.

Do not weld in windy conditions. Do not weld when temperatures are below 16°C (60°F).

Penetration characteristics may vary greatly depending on the following conditions:

Electrode diameter
Shielding gas
Welding current
Plate thickness

The following items also affect the welds:

Geometry of welded joints
Surface conditions
Composition of the base metal and of the electrode

A root pass should be applied before each weld is finished.

Maintain a 3 mm (0.12 inch) minimum root opening on all cross welds and circle welds.

All welds to the stick must be welded in the direction from the rear of the stick toward the front of the stick.

For more welding information, consult the Caterpillar Service Welding Guide, SEBD0512.

Required Parts

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Table 1
465-3300 Lines Gp - Coupler Revision -00
Item	Qty	Part No	Description
(1)	1	148-8444	Swivel Tee As
(2)	1	150-5968	Tee As
(3)	12	7K-1181	Cable Strap
(4)	10	086-9286	Clamp
(5)	2	151-4841	Block
(6)	1	368-4335	Hose As
(7)	1	372-3339	Hose As
(8)	1	418-9060	Plate
(9)	1	418-9065	Plate
(10)	1	418-9152	Coupler Valve and Mounting Gp
(11)	1	423-4311 ⁽¹⁾	Quick Coupler Wiring Gp
(12)	1	443-0062	Hose As
(13)	1	449-1415	Hose As
(14)	1	463-8334	Bracket As
(15)	1	467-8205	Hose As
(16)	1	104-4980	Elbow As
(17)	1	148-8325	Connector As
(18)	2	148-8368	Elbow As
(19)	1	148-8378	Elbow As
(20)	1	148-8407	Plug As
(21)	1	148-8423	Tee As
(22)	2	296-5749	Elbow As
(23)	2	2P-1279	Locknut
(24)	5	3V-0046	Plate
(25)	4	7V-2882	Plate As
(26)	5	8C-6561	Bolt
(27)	2	8T-4121	Hard Washer
(28)	2	8T-4178	Bolt
(29)	1	8T-4195	Bolt

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Refer to Installation Instruction GEHS1030

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Illustration 1	g03746345
465-3300 Lines Gp - Coupler