- Excavator
- 320 (S/N: BR61-UP; DKJ1-UP; KTN1-UP; ZBN1-UP; HEX1-UP)
- 323 (S/N: BR91-UP; YBL1-UP; RAZ1-UP)
- 323F (S/N: PLB1-UP; XCF1-UP; YEJ1-UP)
- 325D (S/N: AZP1-UP)
- 326F (S/N: SGK1-UP; TMR1-UP)
- 323 (S/N: BR91-UP; YBL1-UP; RAZ1-UP)
- Work Tool
- HYDRAULIC KIT (S/N: HKD1-UP)
Introduction
This special instruction covers the installation procedure for 281-8236 Auxiliary Hydraulic Lines Gp on the models and applications listed above.
Safety Section
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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 Cat dealer for replacement manuals. Proper care is your responsibility. |
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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. |
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| Illustration 1 | g00104545 |
Prevent the machine from movement. Park the machine on a level surface.
Attach a "Do Not Operate" warning tag to the start switch before you service or repair the equipment . These warning tags (Special Instruction, SEHS7332) are available from your Caterpillar dealer.
Required Parts
| 281-8236 Auxiliary Hydraulic Lines Gp Revision -02 | |||
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| Item | Qty | Part No | Description |
| (1) | 2 | Manifold | |
| (2) | 4 | Clip | |
| (3) | 2 | Plate | |
| (4) | 1 | Support As | |
| (5) | 1 | Support As | |
| (6) | 2 | Hose As | |
| (7) | 2 | Adapter As | |
| (8) | 2 | Tube As | |
| (9) | 4 | O-Ring Seal | |
| (10) | 4 | Hard Washer | |
| (11) | 4 | Bolt | |
| (12) | 8 | Bolt | |
| (13) | 4 | Bolt | |
| (14) | 8 | Hard Washer | |
| (15) | 2 | Plate | |
| (16) | 4 | Bolt | |
| (17) | 8 | Bolt | |
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| Illustration 2 | g02921537 |
Installation Procedure
| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
| NOTICE |
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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. |
Note: Put identification marks on all hoses, on all hose assemblies, on all harness assemblies, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. Plugging hoses and tubes helps to prevent fluid loss, and helps to keep contaminants from entering the system.
- Install the lines group. Refer to Illustration 2.
- Tighten all of the fittings.
Show/hide table
Illustration 3 g00687600 Show/hide tablePersonal injury or death can result from escaping fluid under pressure.
Escaping fluid under pressure, even a very small pin-hole size leak, can penetrate body tissue, causing serious injury, and possible death.
Always use a board or cardboard when checking for a leak.
Do not check for pin hole leaks in pump or motor hoses during a steer stall condition.
If fluid is injected into your skin, it must be treated by a doctor familiar with this type of injury immediately.
- Inspect the fittings for hydraulic leaks.
