- Excavator:
- 308C CR (S/N: KCX1-UP)
- Work Tool:
- Hydraulic Kit (S/N: HKD1-UP)
Introduction
This special instruction covers the installation procedure to convert existing pin grabber system to 363-4479 Hydraulic Kit (Center Lock) for 308C CR Excavators.
If the machine has existing coupler lines installed, this kit will convert the machine to use a Center-Lock coupler.
Do not perform any of the procedure until you have read the information in this publication.
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 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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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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Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin. |
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Attach a "Do Not Operate" warning tag to the start switch or to the controls before you service or repair equipment. These warning tags are available from your Cat dealer.
Installation Procedure for 363-4479 Hydraulic Kit (Center Lock)
| Parts list for 363-4479 Hydraulic Kit (Center Lock) | |||
| Item | Qty | Part Number | Part Name |
| (1) | 10 | 7K-1181 | Cable Strap |
| (2) | 1 | 352-3584 | Hose As |
| (3) | 1 | 148-8444 | Swivel Tee As |
| (4) | 1 | 152-3411 | Elbow |
| (5) | 1 | 323-6157 | Permanent Coupling As |
| (6) | 1 | 4J-5477 | O-Ring Seal |
| (7) | 2 | 6V-8397 | O-Ring Seal |
| (8) | 1 | 6V-9507 | Plug |
- Remove existing hose (A) from port (P) and tee (B) .
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| Illustration 1 | g02491196 |
(A) Existing hose to port (P) (B) Tee (P) Port (P) of the control valve | |
Note: Apply a vacuum line to the hydraulic tank to prevent oil leaks during the installation.
| NOTICE |
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During the conversion to Center-Lock Hydraulics, remove the screens of the coupler control valve on the machines with the Pin Grabber Plus hydraulic kits. Coupler control valves contained screens on machines built prior to November 2010. Refer to Special Instructions, REHS5661, "Procedure to Rework the Quick Coupler Control Valve on Certain Excavators". |
- Cap fitting on tee (B) with plug (8) and O-ring seal (6) .
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| Illustration 2 | g02491496 |
(B) Tee (6) 4J-5477 O-Ring Seal (8) 6V-9507 Plug | |
- Disconnect existing hose (C) from the boom line for the bucket cylinder extend circuit.
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| Illustration 3 | g02491816 |
(C) Existing hose (3) 148-8444 Swivel Tee As (4) 152-3411 Elbow (7) 6V-8397 O-Ring Seal | |
- Install tee (3) on the boom line.
- Install O-Ring seal (7) in elbow (4). Install elbow (4) on tee (3) .
- Reconnect existing hose (C) to the boom line
- Route hose assembly (2) from control valve (P) to elbow (4) to get the length. Cut the hose to length and install permanent coupling (5) on the hose.
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| Illustration 4 | g02503676 |
(2) 352-3584 Hose As (4) 152-3411 Elbow (5) 323-6157 Permanent Coupling As (7) 6V-8397 O-Ring Seal | |
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| Illustration 5 | g02492118 |
(P) Port (P) on control valve (2) 352-3584 Hose As | |
- Route hose (2) through existing support (D). Use cable straps (1) to secure to the hose as necessary.
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| Illustration 6 | g02512757 |
existing support (D) | |
- Install O-ring seal (7) in tee (4). Connect hose (2) to tee (4) and port (P) of the control valve.
- Tighten all hose connections and fittings.
Configure the Machine
The machine must be configured before the quick coupler can be used. The Quick Coupler option under Attachment Parts Installation in the Configuration Mode must be updated. Refer to the following document that is available on the Service Information System (SIS).
ReferenceSystems Operation, RENR8068, "Configuration Mode - Attachment Parts Installation"
Check The System
- Purge the air from the hydraulic lines of the coupler. Refer to Operation and Maintenance Manual, "Hydraulic System - Air Purge" for more information.
- After the electrical system is connected and after the hydraulic system is connected, check the coupler for proper operation. Refer to the Operation and Maintenance Manual, "Operation" for more information.