- Excavator
- 320D2 (S/N: PBB1-UP)
- 323D2 (S/N: FLC1-UP; KCE1-UP; XBK1-UP)
- Hydraulic Kit
- HYDRAULIC KIT (S/N: HKD1-UP)
Introduction
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.
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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Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin. |
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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 Cat dealer.
Required Parts
| 376-6329 Front Lines Gp Revision -03 | |||
|---|---|---|---|
| Item | Qty | Part No. | Description |
| (1) | 6 | Marker Band (Red) | |
| (2) | 8 | Marker Band (Yellow) | |
| (3) | 6 | Marker Band (White) | |
| (4) | 2 | Marker Band (Green) | |
| (5) | 1 | Hose As | |
| (6) | 1 | Hose As | |
| (7) | 1 | Hose As | |
| (8) | 1 | Check Valve As | |
| (9) | 1 | O-Ring Face Seal Fitting | |
| (10) | 1 | Shuttle Valve Gp | |
| (11) | 1 | Connector | |
| (12) | 2 | Elbow | |
| (13) | 1 | Control Valve Gp | |
| (14) | 1 | Solenoid Valve Gp | |
| (15) | 1 | Guard | |
| (16) | 1 | Hose As | |
| (17) | 1 | Connector As | |
| (18) | 1 | Hose As | |
| (19) | 1 | Hose As | |
| (20) | 1 | Tube As | |
| (21) | 1 | Hose As | |
| (22) | 1 | Hose As | |
| (23) | 1 | Support As | |
| (24) | 1 | Hose As | |
| (25) | 2 | Hose As | |
| (26) | 1 | Support As | |
| (27) | 4 | Bolt | |
| (28) | 1 | Connector As | |
| (29) | 1 | Connector As | |
| (30) | 3 | Connector As | |
| (31) | 1 | Elbow As | |
| (32) | 1 | Elbow As | |
| (33) | 1 | Elbow As | |
| (34) | 1 | Elbow As | |
| (35) | 1 | Elbow As | |
| (36) | 7 | Elbow As | |
| (37) | 2 | Reducer As | |
| (38) | 1 | Tee As | |
| (39) | 1 | Tee As | |
| (40) | 2 | Elbow As | |
| (41) | 1 | Plug As | |
| (42) | 1 | Tee As | |
| (43) | 3 | Quick Disconnect Coupler As | |
| (44) | 1 | Elbow Fitting | |
| (45) | 1 | Connector As | |
| (46) | 1 | Connector As | |
| (47) | 1 | Tee As | |
| (48) | 1 | O-Ring Seal | |
| (49) | 1 | O-Ring Seal | |
| (50) | 1 | Clip | |
| (51) | 3 | Dust Cap | |
| (52) | 15 | Cable Strap | |
| (53) | 5 | Hard Washer | |
| (54) | 3 | Bolt | |
| (55) | 2 | Bolt | |
| (56) | 2 | Bolt | |
| (57) | 5 | Hard Washer | |
| (58) | 3 | Bolt | |
| (59) | 2 | Nut | |
| Standard Removal | |||
| (-) | 3 | Bolt As | |
| (-) | 1 | Connector As | |
| (-) | 1 | Hose As | |
| (-) | 1 | Quick Disconnect Coupler As | |
| (-) | 1 | Dust Cap | |
| (-) | 1 | Pipe As | |
| (-) | 4 | Bolt | |
| (-) | 1 | O-Ring Seal | |
| (-) | 1 | Tee As | |
| (-) | 1 | Elbow As | |
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| Illustration 2 | g06045650 |
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Installation Procedure
- Assemble valve group (A).
Show/hide table
Illustration 4 g06045806 (1) 4I-9521 Marker Band (Red)
(2)4I-9522 Marker Band (Yellow)
(3)4I-9526 Marker Band (White)
(4)4I-9527 Marker Band (Green)
(6)087-5761 Hose As
(7)104-8950 Hose As
(8)123-4750 Check Valve As
(11)203-3470 Connector
(15)266-0982 Guard
(16)266-1133 Hose As
(22)289-5335 Hose As
(24)313-8623 Hose As
(25)377-3336 Hose As
(26)415-8976 Support As
(30)148-8336 Connector As
(35)148-8368 Elbow As
(40)150-3036 Elbow As
(42)164-5546 Tee As
(43)164-5567 Quick Disconnect Coupler As
(48)3J-1907 O-Ring Seal
(50)5K-8451 Clip
(51)6V-0852 Dust Cap
(52)7K-1181 Cable Strap
(53)8T-4121 Hard Washer
(54)8T-4136 Bolt
(56)8T-4192 Bolt
(57)8T-4223 Hard Washer - Install valve group (A).
- Connect hoses and fittings as shown.
Show/hide table
Illustration 5 g06045830 (1) 4I-9521 Marker Band (Red)
(2)4I-9522 Marker Band (Yellow)
(3)4I-9526 Marker Band (White)
(6)087-5761 Hose As
(7)104-8950 Hose As - Connect hoses and fittings as shown.
Show/hide table
Illustration 6 g06045818 (2) 4I-9522 Marker Band (Yellow)
(18)275-1538 Hose As
(20)285-2423 Tube As
(24)313-8623 Hose As
(27)101-7402 Bolt
(30)148-8336 Connector As
(33)148-8363 Elbow As
(49)4J-0527 O-Ring Seal - Install drain tube (20).
Show/hide table
Illustration 7 g06045744 (9) 124-1035 O-Ring Face Seal Fitting
(10)164-6980 Shuttle Valve Gp
(18)275-1538 Hose As
(30)148-8336 Connector As
(36)146-8378 Housing - Connect hoses and fittings as shown.
Show/hide table
Illustration 8 g06045732 (1) 4I-9521 Marker Band (Red)
(2)4I-9522 Marker Band (Yellow)
(25)377-3336 Hose As
(37)148-8419 Reducer As
(52)7K-1181 Cable Strap
(59)9X-6582 Nut - Route hoses (25) to the boom.
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| Illustration 3 | g06045724 |
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(12) (13) (14) (23) (28) (29) (31) (35) (36) (38) (39) (40) (43) (44) (45) (46) (47) (51) (53) (54) (55) (57) (58) | |
