- Excavator:
- 390F (S/N: HJD1-UP; TYE1-UP; MGF1-UP; HSM1-UP; GAY1-UP)
Introduction
This Special Instruction covers the installation procedure for 381-2239 Front Lines Gp on the models and applications listed above.
Safety Section
| 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. |
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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 or a similar warning tag to the start switch or to the controls before you service the equipment. These warning tags (Special Instruction, SEHS7332) are available from your Caterpillar dealer.
Required Parts
| Parts List for 381-2239 Front Lines Gp -02 | |||
|---|---|---|---|
| Item | Qty | Part No. | Description |
| (1) | 4 | 4I-9521 | Marker Band (Red) |
| (2) | 6 | 4I-9522 | Marker Band (Yellow) |
| (3) | 2 | 4I-9525 | Marker Band (Orange) |
| (4) | 1 | 123-4750 | Check Valve As |
| (5) | 1 | 337-1327 | Boss |
| (6) | 1 | 339-4353 | Control Valve Gp |
| (7) | 1 | 383-9405 | Support As |
| (8) | 2 | 383-9413 | Hose As |
| (9) | 1 | 383-9414 | Hose As |
| (10) | 1 | 439-9070 | Hose As |
| (11) | 1 | 439-9078 | Support As |
| (12) | 1 | 141-6348 | Bolt |
| (13) | 3 | 148-8336 | Connector As |
| (14) | 1 | 148-8378 | Elbow As |
| (15) | 1 | 150-3036 | Elbow As |
| (16) | 1 | 164-5546 | Tee As |
| (17) | 3 | 164-5567 | Quick Disconnect Coupler As |
| (18) | 2 | 164-6874 | Elbow Fitting |
| (19) | 5 | 5P-7464 | Clip |
| (20) | 5 | 5P-7465 | Clip |
| (21) | 3 | 6V-0852 | Dust Cap |
| (22) | 5 | 6V-1249 | Grommet |
| (23) | 5 | 7K-1181 | Cable Strap |
| (24) | 3 | 8T-3647 | Bolt |
| (25) | 9 | 8T-4121 | Hard Washer |
| (26) | 6 | 8T-4136 | Bolt |
| (27) | 1 | 8T-4195 | Bolt |
| (28) | 1 | 8T-4196 | Bolt |
| (29) | 3 | 8T-4224 | Hard Washer |
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| Illustration 2 | g03789090 |
381-2239 Front Lines Gp | |
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| Illustration 3 | g03789094 |
381-2239 Front Lines Gp Frame View | |
Installation Instructions
- Assemble the components of valve group (A) .
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| Illustration 4 | g03789287 |
Valve group (A) (6) 339-4353 Control Valve Gp (13) 148-8336 Connector As (14) 148-8378 Elbow As (15) 150-3036 Elbow As (17) 164-5567 Quick Disconnect Coupler As (18) 164-6874 Elbow Fitting (21) 6V-0852 Dust Cap (24) 8T-3647 Bolt (29) 8T-4224 Hard Washer | |
- Attach valve group (A) to the frame.
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| Illustration 5 | g03789097 |
(1) 4I-9521 Marker Band (Red) (2) 4I-9522 Marker Band (Yellow) (3) 4I-9525 Marker Band (Orange) (8) 383-9413 Hose As (9) 383-9414 Hose As (10) 439-9070 Hose As | |
- Attach red hose (8) to port "A" on valve group (A) and route to boom.
- Attach yellow hose (8) to port "B" on valve group (A) and route to boom.
- Attach yellow hose (9) to port "T" on valve group (A) and route to hydraulic drain tube.
- Attach orange hose (10) to port "P" on valve group (A) and route to main pump.
- Route yellow hose (9) under main control valve.
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| Illustration 6 | g03789098 |
(2) 4I-9522 Marker Band (Yellow) (3) 4I-9525 Marker Band (Orange) (7) 383-9405 Support As (9) 383-9414 Hose As (10) 439-9070 Hose As (19) 5P-7464 Clip (20) 5P-7465 Clip (22) 6V-1249 Grommet (23) 7K-1181 Cable Strap (25) 8T-4121 Hard Washer (27) 8T-4195 Bolt | |
- Attach orange hose (10) to block with support (7) .
- Attach yellow hose (9) to the hydraulic drain tube.
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| Illustration 7 | g03789099 |
(2) 4I-9522 Marker Band (Yellow) (3) 4I-9525 Marker Band (Orange) (9) 383-9414 Hose As (10) 439-9070 Hose As (12) 141-6348 Bolt (13) 148-8336 Connector As (19) 5P-7464 Clip (20) 5P-7465 Clip (22) 6V-1249 Grommet (25) 8T-4121 Hard Washer | |
- Attach orange hose (10) to hydraulic drain tube with boss and clips as shown.
- Attach orange hose (10) as shown.
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| Illustration 8 | g03789306 |
(3) 4I-9525 Marker Band (Orange) (10) 439-9070 Hose As (19) 5P-7464 Clip (20) 5P-7465 Clip (22) 6V-1249 Grommet (25) 8T-4121 Hard Washer (26) 8T-4136 Bolt | |
- Attach orange hose (10) to hydraulic pump as shown.
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| Illustration 9 | g03789396 |
(3) 4I-9525 Marker Band (Orange) (4) 123-4750 Check Valve As (10) 439-9070 Hose As (16) 164-5546 Tee As (17) 164-5567 Quick Disconnect Coupler As (21) 6V-0852 Dust Cap | |
- Secure all hardware.
- Inspect the front lines group for hydraulic leaks once the rest of the hydraulic kit installation is complete.