Installation Procedure for 260-7984 Pilot Lines Gp (PILOT OIL PRESSURE){5057, 5059, 6307} Caterpillar

Installation Procedure for 260-7984 Pilot Lines Gp (PILOT OIL PRESSURE){5057, 5059, 6307}

Usage:

320D BZP

Excavator:: 320D (S/N: BZP1-UP; DFT1-UP; MCH1-UP; FAL1-UP; PHX1-UP)
Work Tool:: GLC85 (S/N: JSF1-UP)

Introduction

The Special Instruction, REHS3881 is for the installation of the 260-7984 Pilot Lines Gp (C) (PILOT OIL PRESSURE). If you need more information about the installation of the pilot lines on your machine, consult your Caterpillar dealer.

Safety Section

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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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Do not operate or work on this machine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manuals. Failure to follow the instructions or heed the warnings could result in injury or death. Contact your Caterpillar dealer for replacement manuals. Proper care is your responsibility.

Required Parts

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Table 1
Parts List for 260-7984 Pilot Lines Gp (C) (PILOT OIL PRESSURE)
Item	Qty	Pt. No.	Part Name
(1)	2	4I-9526	Marker Band
(2)	2	4I-9527	Marker Band
(3)	1	5I-4076	Hose As
(4)	4	7K-1181	Cable Strap
(5)	1	4I-5795	Hose As
(6)	1	124-1008	Guard
(7)	1	168-9759	Block
(8)	1	266-1108	Support As
(9)	1	289-5578	Support As
(10)	3	148-8336	Connector As
(11)	1	148-8338	Connector As
(12)	8	148-8407	Plug As
(13)	2	148-8411	Plug
(14)	2	148-8433	Tee As
(15)	2	6V-9829	Cap As
(16)	2	8T-4121	Hard Washer
(17)	2	8T-4184	Bolt
(18)	4	8T-4192	Bolt
(19)	2	8T-4198	Bolt
(20)	6	8T-4223	Hard Washer

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Illustration 1	g01622018

Installation Section

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Illustration 2	g01622047
Port Identification for Pilot Valve

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Illustration 3	g01622094

Assemble fittings onto block (7) .
1. Install connectors (10) into ports "DB6" and "PB6" of block (7).
1. Install plugs (13) into block (7) .
1. Install plugs (12) in the remaining open ports in block (7) .

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Illustration 5	g01622213

Mount block (7) onto bracket (9). Use bolts (19) and washers (16) .

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Illustration 6	g01666117

Remove guard plates (A), (B), and (C) .

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Illustration 7	g01622234

Mount bracket (9) with block (7) to the inside wall of the pump compartment. Secure the bracket by using bolts (17) and washers (20) .

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Illustration 8	g01622403

Install connector (10) into port "DR6" in the pilot manifold.

Install tee (14) and cap (15) onto connector (10). Orient the tee as shown in Illustration 8.

Attach the angled end of hose (5) to tee (14) that is installed at port "DR6" in the pilot manifold.

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Illustration 9	g01622434

Route the opposite end of hose (5) to block (7) in the pump compartment. Fasten hose (5) to fitting (10) on port "DB6".

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Illustration 10	g01622455

Install connector (11) into port "PSA2" in the pilot manifold.

Install tee (14) and cap (15) to connector (11). Orient the tee as shown in Illustration 10.

Attach hose (3) to tee (14) that is installed in port "PSA2" in the pilot manifold.

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Illustration 11	g01622587

Route the opposite end of hose (3) to block (7) in the pump compartment. Fasten hose (3) to connector (10) on port "PB6".

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Illustration 12	g01622593

Wrap hose (5) and hose (3) with guard (6). Secure the guard with two straps (4) .
Note: In order to prevent hose (5) and hose (3) from interfering with other components of the machine, secure the hoses together with straps (4) .