Service Repair Manual
Models
320D2L Excavator
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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XCC Configuration: 320D2 L Excavator XCC00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly 320D2 Excavator Machine Systems Media Number -UENR3252-09
Publication Date -01/07/2015
Date Updated -30/07/2018
i02406892
Gear Pump (Pilot) - Disassemble SMCS - 5073-015-PS S/N - DFM1-UP S/N - DNP1-UP S/N - EAL1-UP S/N - EKT1-UP S/N - ESG1-UP S/N - FKK1-UP S/N - GBA1-UP S/N - HDM1-UP S/N - JFM1-UP S/N - KHR1-UP S/N - LMA1-UP S/N - NBT1-UP S/N - RDZ1-UP S/N - SDZ291-UP S/N - STN1-UP S/N - TGJ1-UP
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S/N - TMF1-UP S/N - WDJ1-UP S/N - XAN1-UP S/N - XBB1-UP S/N - XCC1-UP S/N - YEA1-UP S/N - ZBD1-UP S/N - ZCS1-UP
Disassembly Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
1P-1857
Retaining Ring Pliers
1
Start By: a. Remove the gear pump. Refer to Disassembly and Assembly, "Gear Pump (Pilot) Remove".
Illustration 1
g01202274
1. Remove bolts (1) and housing (2) from flange (3).
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Illustration 2
g01202276
2. Remove O-ring seal (4).
Illustration 3
g01202275
3. Use Tooling (A) in order to remove retaining ring (5). 4. Remove lip seal (6).
Illustration 4
g01202277
5. Remove plate (7) and seal (8).
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Illustration 5
g01202278
6. Remove balls (9) and gears (10).
Illustration 6
g01202279
7. Remove plate (11).
Illustration 7
g01202280
8. Remove seal (12). Copyright 1993 - 2020 Caterpillar Inc.
Wed Feb 12 16:16:25 UTC+0800 2020
All Rights Reserved.
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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XCC Configuration: 320D2 L Excavator XCC00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly 320D2 Excavator Machine Systems Media Number -UENR3252-09
Publication Date -01/07/2015
Date Updated -30/07/2018
i02406893
Gear Pump (Pilot) - Assemble SMCS - 5073-012-PS S/N - DFM1-UP S/N - DNP1-UP S/N - EAL1-UP S/N - EKT1-UP S/N - ESG1-UP S/N - FKK1-UP S/N - GBA1-UP S/N - HDM1-UP S/N - JFM1-UP S/N - KHR1-UP S/N - LMA1-UP S/N - NBT1-UP S/N - RDZ1-UP S/N - SDZ291-UP S/N - STN1-UP S/N - TGJ1-UP
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S/N - TMF1-UP S/N - WDJ1-UP S/N - XAN1-UP S/N - XBB1-UP S/N - XCC1-UP S/N - YEA1-UP S/N - ZBD1-UP S/N - ZCS1-UP
Assembly Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
1P-1857
Retaining Ring Pliers
1
Illustration 1
g01202280
1. Install seal (12).
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Illustration 2
g01202279
2. Install plate (11).
Illustration 3
g01202278
3. Install balls (9) and gears (10).
Illustration 4
g01202277
4. Install seal (8) and plate (7).
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Illustration 5
g01202275
5. Install lip seal (6). 6. Use Tooling (A) in order to install retaining ring (5).
Illustration 6
g01202276
7. Install O-ring seal (4).
Illustration 7
g01202274
8. Install flange (3) onto housing (2). 9. Install bolts (1).
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End By: a. Install the gear pump. Refer to Disassembly and Assembly, "Gear Pump (Pilot) - Install". Copyright 1993 - 2020 Caterpillar Inc.
Wed Feb 12 16:17:28 UTC+0800 2020
All Rights Reserved. Private Network For SIS Licensees.
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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XCC Configuration: 320D2 L Excavator XCC00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly 320D2 Excavator Machine Systems Media Number -UENR3252-09
Publication Date -01/07/2015
Date Updated -30/07/2018
i02428154
Gear Pump (Pilot) - Install SMCS - 5073-012-PS S/N - DFM1-UP S/N - DNP1-UP S/N - EAL1-UP S/N - EKT1-UP S/N - ESG1-UP S/N - FKK1-UP S/N - GBA1-UP S/N - HDM1-UP S/N - JFM1-UP S/N - KHR1-UP S/N - LMA1-UP S/N - NBT1-UP S/N - RDZ1-UP S/N - SDZ291-UP S/N - STN1-UP S/N - TGJ1-UP
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S/N - TMF1-UP S/N - WDJ1-UP S/N - XAN1-UP S/N - XBB1-UP S/N - XCC1-UP S/N - YEA1-UP S/N - ZBD1-UP S/N - ZCS1-UP
Installation Procedure
Illustration 1
g01213458
1. Install O-ring seal (5). Install gear pump (3). Install bolts (2). Connect hose assemblies (1) and (4). Copyright 1993 - 2020 Caterpillar Inc.
Wed Feb 12 16:18:30 UTC+0800 2020
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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XCC Configuration: 320D2 L Excavator XCC00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly 320D2 Excavator Machine Systems Media Number -UENR3252-09
Publication Date -01/07/2015
Date Updated -30/07/2018
i02427682
Main Hydraulic Pump - Remove SMCS - 5070-011 S/N - DFM1-UP S/N - DNP1-UP S/N - EAL1-UP S/N - EKT1-UP S/N - ESG1-UP S/N - FKK1-UP S/N - GBA1-UP S/N - HDM1-UP S/N - JFM1-UP S/N - KHR1-UP S/N - LMA1-UP S/N - NBT1-UP S/N - RDZ1-UP S/N - SDZ291-UP S/N - STN1-UP S/N - TGJ1-UP
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S/N - TMF1-UP S/N - WDJ1-UP S/N - XAN1-UP S/N - XBB1-UP S/N - XCC1-UP S/N - YEA1-UP S/N - ZBD1-UP S/N - ZCS1-UP
Removal Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
138-7575
Link Bracket
1
B
1U-9200
Lever Puller Hoist
1
C
138-7573
Link Brackets
2
Start By: a. Remove the muffler. Refer to Disassembly and Assembly, "Muffler - Remove". b. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release". 1. Drain the hydraulic tank. Refer to Operations and Maintenance Manual, "Hydraulic System Oil - Change".
Illustration 1
g01213554
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2. Disconnect hose assemblies (4). Disconnect harness assembly (3). Remove bolts (1) and reposition valve assembly (2).
Illustration 2
g01213993
3. Remove remaining bolts (1).
Illustration 3
g01214323
4. Remove bolts (5) and cover assembly (6).
Illustration 4
g01214398
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Illustration 5
g01214401
5. Remove bolts (9) and bracket assembly (10). Remove cover assembly (12).
Illustration 6
g01214551
6. Disconnect hose assemblies (13). Disconnect harness assembly (14).
Illustration 7
g01214600
7. Disconnect harness assemblies (15) and (20). Disconnect hose assemblies (16), (17), (18), and (19).
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Illustration 8
g01214772
8. Disconnect hose assembly (21). Disconnect hose assemblies (22).
Illustration 9
g01215271
9. Remove bolts (23). Remove all mounting hardware from harness assembly (24) and reposition.
Illustration 10
g01215377
10. Disconnect hose assemblies (25).
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Illustration 11
g01215389
11. Remove bolts (26). Disconnect tube assembly (27).
Illustration 12
g01215450
12. Remove bolts (28) and reposition filter assembly (29). Remove bolts (30) and reposition filter assembly (31).
Illustration 13
g01215556
13. Attach Tooling (A), (B), and (C) and a suitable lifting device to main hydraulic pump (32). The weight of main hydraulic pump (32) is approximately 250 kg (550 lb). Remove bolts (33) and main hydraulic pump (32).
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Illustration 14
g01215580
14. Remove bolt (34) and gear (35).
Illustration 15
g01215665
15. Remove bolts (36) and auxiliary pump (37).
Illustration 16
g01215672
16. Remove Coupling (39) and O-ring seal (40). Remove bolts (38) and adapter (41).
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Illustration 17
g01215724
17. Remove bolts (42) and pilot pump (43).
Illustration 18
g01215928
18. Remove O-ring seal (44). Copyright 1993 - 2020 Caterpillar Inc.
Wed Feb 12 16:19:33 UTC+0800 2020
All Rights Reserved. Private Network For SIS Licensees.
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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XCC Configuration: 320D2 L Excavator XCC00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly 320D2 Excavator Machine Systems Media Number -UENR3252-09
Publication Date -01/07/2015
Date Updated -30/07/2018
i05916114
Main Hydraulic Pump - Disassemble SMCS - 5070-015 S/N - DFM1-UP S/N - DNP1-UP S/N - EAL1-UP S/N - EKT1-UP S/N - ESG1-UP S/N - FKK1-UP S/N - GBA1-UP S/N - HDM1-UP S/N - JFM1-UP S/N - KHR1-UP S/N - LMA1-UP S/N - NBT1-UP S/N - RDZ1-UP S/N - SDZ291-UP S/N - STN1-UP S/N - TGJ1-UP
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S/N - TMF1-UP S/N - WDJ1-UP S/N - XAN1-UP S/N - XBB1-UP S/N - XCC1-UP S/N - YEA1-UP S/N - ZBD1-UP S/N - ZCS1-UP
Disassembly Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
5F-7465
Puller Group
1
B
1P-2420
Transmission Repair Stand
1
C
138-7575
Link Bracket
3
D
1P-0510
Driver Group
1
E
1P-1859
Retaining Ring Pliers
1
F
9S-9152
Bearing Puller
1
G
8B-7551
Bearing Puller
1
Start By: A. Remove the main hydraulic pump. Refer to Disassembly and Assembly, "Main Hydraulic Pump - Remove" for the machine that is being serviced.
NOTICE Keep all parts clean from contaminants. Contamination of the hydraulic system with foreign material will reduce the service life of the hydraulic system components. To prevent contaminants from entering the hydraulic system, always plug or cap the lines, fittings, or hoses as they are disconnected. Cover
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any disassembled components and clean them properly before assembly. Clean the hydraulic system properly after any major component exchange or especially after a component failure, to remove any contamination.
Note: Cleanliness is an important factor. Before the disassembly procedure, clean the exterior of the component . Cleaning will prevent dirt from entering the internal mechanism. Note: Only the right pump control is equipped with the proportional reducing valve. The left pump control starts with Step 4.
Illustration 1
g01200312
1. Remove bolts (2) , pump control (1) , and fitting (3) .
Illustration 2
g01202630
Right Pump Only
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2. Remove bolts (4) . Remove proportional reducing valve (5) from pump control (1) .
Illustration 3
g01202631
Right Pump Only
3. Remove O-ring seal (9) , O-ring seal (8) , O-ring seal (7) , and O-ring seal (6) from the proportional reducing valve.
Illustration 4
g00706166
4. Remove nut (10) from the pump control.
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Illustration 5
g00882598
5. Measure the length of screw (13) for installation purposes. Remove screw (13) . Remove bolts (11) . Remove cover (12) from the pump control.
Illustration 6
g00706177
6. Remove stopper (14) from the pump control.
Illustration 7
g00706179
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7. Remove O-ring seal (15) and backup ring (16) from the stopper. 8. Repeat Step 4 through Step 7 for the other side of the pump control.
Illustration 8
g00706239
9. Place the pump control in a soft jawed vise. Support pin assembly (17) . Remove piston (18) from the pump control. Remove pin assembly (17) from the pump control.
Illustration 9
g00706243
10. Remove dowel pin (19) from the pin.
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Illustration 10
g00706249
11. Remove bolts (20) . Remove cover assembly (21) from the pump control.
Illustration 11
g00882599
Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened.
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