Installation of the 281-8245 Auxiliary Hydraulic Lines Gp on Certain Hydraulic Excavators {5057, 5057} Caterpillar


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Installation of the 281-8245 Auxiliary Hydraulic Lines Gp on Certain Hydraulic Excavators {5057, 5057} [REHS5142]
HYDRAULIC SYSTEM
LINES GP-AUXILIARY
Installation of the 281-8245 Auxiliary Hydraulic Lines Gp on Certain Hydraulic Excavators {5057, 5057}
1.1. Introduction
2.1. Safety Section
3.1. Required Parts
4.1. Installation Procedure
5.1. Installation Procedure of 281-8245 Auxiliary Hydraulic Lines Gp
Excavator:
326F (S/N: SGK1-UP; TMR1-UP)
Work Tool:
HYDRAULIC KIT (S/N: HKD1-UP)

Introduction

This special instruction covers the installation procedure for the 281-8245 Auxiliary Hydraulic Lines Gp.

Do not perform any of the procedures until you have read the information in this publication.

Safety Section

------ WARNING! ------

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 Cat dealer for replacement manuals. Proper care is your responsibility.

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------ WARNING! ------

Personal injury or death can result from sudden work tool movement.

Sudden movement of the work tool can cause injury to persons near the work tool.

To prevent injury or death, make sure that the area around the work tool is clear of personnel and obstructions before operating the work tool.

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------ WARNING! ------

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.

----------------------

------ WARNING! ------

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.

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Required Parts

Note: Refer to individual installation instructions per segment for a detailed list of parts.

Installation Procedure




Illustration 1g00104545

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

Installation Procedure of 281-8245 Auxiliary Hydraulic Lines Gp

Table 1
Parts List for 281-8245 Auxiliary Hydraulic Lines Gp Revision -00    
Item Number     Qty     Part Number
Part Name    
(1)     2     6C-6760 Manifold    
(2)     8     149-1738 Clip    
(3)     2     187-9977 Plate    
(4)     2     187-9978 Support As    
(5)     2     187-9981 Support As    
(6)     2     250-1440 Adapter As    
(7)     2     253-6455 Tube As    
(8)     2     253-6557 Hose As    
(9)     4     6V-8398 O-Ring Seal    
(10)     4     8T-4121 Hard Washer    
(11)     4     8T-4136 Bolt    
(12)     16     8T-4139 Bolt    
(13)     4     8T-4185 Bolt    
(14)     16     8T-4223 Hard Washer    
(15)     4     7X-2543 Bolt    
(16)     8     8T-4183 Bolt    



Illustration 2g02144350



Illustration 3g02144389

(A) 48 mm (1.9 inch)

(B) 350 ± 5 mm (13.8 ± 0.2 inch)

(C) 1750 mm (68.9 inch)

(D) 1250 mm (49.21 inch)

(E) 903.2 mm (35.6 inch)

(F) 161.3 mm (6.4 inch)

Note: Refer to Illustration 3 for locations of the supports, tubes, and ball valves.

  1. Use two 8T-4223 Hard Washers (14) and two 8T-4139 Bolts (12) per support assembly. Mount 2 187-9978 Support As (4) to the operator side of the stick.

  1. Use 2 149-1738 Clips (2), support 253-6455 Tube As (7).

  1. Loosely install the clips with two 8T-4223 Hard Washers (14) and two 8T-4139 Bolts (12). When the tube is correctly positioned, tighten the bolts for the clips to the appropriate torque.

  1. Insert one 6V-8398 O-Ring Seal (9) in both ends of the tube.

  1. Attach one 253-6557 Hose As (8) to the 253-6455 Tube As (7). Tighten to a torque value of 76 ± 4 N·m (56.1 ± 1 lb ft).

  1. Use two 8T-4223 Hard Washers (14) and two 8T-4139 Bolts (12) per support assembly. Mount 2 187-9981 Support As (5) to the opposite side of the stick.

  1. Repeat Step 2 through Step 5.

  1. Use two 8T-4121 Hard Washers (10) and two 8T-4136 Bolts (11). Mount one 187-9977 Plate (3) to both sides of the stick. Refer to Illustration 3 for the location of the plates.

  1. Use one 250-1440 Adapter As (6), attach one 6C-6760 Manifold (1) to the tube assemblies on both sides of the stick. Tighten to a torque value of 76 ± 4 N·m (56.1 ± 1 lb ft).

  1. Attach both manifolds to the plates with two 8T-4185 Bolts (13) .

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