- Backhoe Loader:
- 416F (S/N: KSF1-UP; LWT1-UP)
- 420F (S/N: LTG1-UP; SKR1-UP)
- 430F (S/N: RDF1-UP; LDY1-UP)
- 420F (S/N: LTG1-UP; SKR1-UP)
- Work Tool:
- QUICK COUPLER (S/N: ARJ1-UP)
Introduction
This Special Instruction contains the procedure for installing Quick Coupler Lines Gp on certain Backhoe Loaders. The machine must be equipped with a 417-6878 Quick Coupler Gp .
Safety
 |
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. |
 |
|
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. |
|
|
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. |
|
| NOTICE |
|---|
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. |
Required Parts
| 418-9078 Quick Coupler Lines Gp -01 | |||
|---|---|---|---|
| Item | Qty | Part Number |
Description |
| 1 | 1 | 479-7634 | Bracket |
| 2 | 2 | 268-1643 | Connector As |
| 3 | 1 | 320-7721 | Hose As |
| 4 | 1 | 422-4949 | Bracket |
| 5 | 1 | 422-4950 | Hose As |
| 6 | 1 | 422-4951 | Hose As |
| 7 | 1 | 439-1588 | Coupling |
| 8 | 1 | 439-1589 | Coupling As |
| 9 | 1 | 447-9735 | Cap As |
| 10 | 1 | 447-9736 | Cap As |
| 11 | 1 | 452-1495 | Clamp |
| 12 | 1 | 148-8375 | Elbow As |
| 13 | 2 | 6V-7743 | Locknut |
| 14 | 1 | 6V-9169 | Nut |
| 15 | 2 | 6V-9170 | Bulkhead Nut |
| 16 | 8 | 8T-4121 | Hard Washer |
| 17 | 4 | 8T-4133 | Nut |
| 18 | 4 | 8T-4195 | Bolt |
| 19 | 4 | 8T-4205 | Hard Washer |
| 20 | 2 | 8T-4971 | Bolt |
 | |
| Illustration 1 | g03815295 |
418-9078 Quick Coupler Lines Gp | |
Procedure to Install Quick Coupler Lines Gp
 | |
| Illustration 2 | g03815299 |
(1) 479-7634 Bracket (2) 268-1643 Connector As (3) 320-7721 Hose As (4) 422-4949 Bracket (5) 422-4950 Hose As (6) 422-4951 Hose As (7) 439-1588 Coupling (8) 439-1589 Coupling As (9) 447-9735 Cap As (10) 447-9736 Cap As (11) 452-1495 Clamp (12) 148-8375 Elbow As (13) 6V-7743 Locknut (14) 6V-9169 Nut (15) 6V-9170 Bulkhead Nut (16) 8T-4121 Hard Washer (17) 8T-4133 Nut (18) 8T-4195 Bolt (19) 8T-4205 Hard Washer (20) 8T-4971 Bolt | |
- Install components of Lines Gp-Implement to Quick Coupler Gp as shown.
- Tighten all connections to standard torque.