2002/09/16 An Updated Air Starting Control Group Improves Durability of the Lines {5500, 5501} Caterpillar

An Updated Air Starting Control Group Improves Durability of the Lines {5500, 5501}

2002/09/16 [SEPD0647]

2002/09/16 New Pins for the Bulldozer Blade are Now Greased {6061, 6065, 6066}

2002/09/16 A New Temperature Switch is Used for the Axle Oil Cooler System {5073}

ELECTRICAL AND STARTING SYSTEM

CONTROL GP-AIR STARTING

2002/09/16 An Updated Air Starting Control Group Improves Durability of the Lines {5500, 5501}

Off-Highway Truck/Tractor:
776D (S/N: AFS1-UP)
777D (S/N: AGC1-UP)

Description of Change: The Air Starting Control Gp has been updated. The new type has fewer fittings. Many of the rigid connections have been replaced. The rigid connections were prone to failure due to vibration. The new type improves the durability of the lines.

Adaptable To: The updated 5T-4732 Air Starting Control Gp is effective with (S/N: AGC1051-UP; AFS83-UP). The new type is adaptable to all previous models. The 5T-4732 Air Starting Control Gp is serviced only by components. Refer to the following information in order to adapt older machines to the newer type.

Parts for Removal

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Illustration 1	g00918211

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Table 1
Ref No	Qty	Part Number	Description
1	2	1L-1722	Pipe Connector
2	1	1L-2782	Pipe Tee
3	1	1S-1015	Clip
4	1	3D-8911	Pipe Connector
5	1	4D-5914	Hose As
6	1	5B-7661	Fitting
7	2	5B-7666	Elbow
8	1	5T-4728	Hose As
9	1	5T-7972	Hose As
10	1	6B-3685	Elbow
11	1	6F-7732	Terminal Bushing
12	1	6L-5955	Elbow
13	1	7B-0497	Pipe Nipple

Parts for Installation

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Illustration 2	g00918213

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Table 2
Ref No	Qty	Part Number	Description
1	2	1L-0766	Elbow
2	1	2H-3940	Elbow
3	1	3S-8664	Clip
4	1	4S-6668	Clip
5	1	5P-2370	Clip
6	1	8T-4896	Hard Washer
7	1	8X-6293	Elbow
8	1	222-8562	Hose As
9	1	222-8563	Hose As
10	1	223-2437	Hose As