Caterpillar Cat 320D2L Excavator (Prefix XCC) Service Repair Manual (XCC00001 and up).pdf

Service Repair Manual
Models
320D2L Excavator

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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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...

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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2. Remove O-ring seal (4).
3. Use Tooling (A) in order to remove retaining ring (5).
4. Remove lip seal (6).
5. Remove plate (7) and seal (8).
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6. Remove balls (9) and gears (10).
7. Remove plate (11).
8. Remove seal (12).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Wed Feb 12 16:16:25 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
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
A 1P-1857 Retaining Ring Pliers 1
1. Install seal (12).
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2. Install plate (11).
3. Install balls (9) and gears (10).
4. Install seal (8) and plate (7).
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5. Install lip seal (6).
6. Use Tooling (A) in order to install retaining ring (5).
7. Install O-ring seal (4).
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".
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Wed Feb 12 16:17:28 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
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
1. Install O-ring seal (5). Install gear pump (3). Install bolts (2). Connect hose assemblies (1)
and (4).
Wed Feb 12 16:18:30 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
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
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".
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2. Disconnect hose assemblies (4). Disconnect harness assembly (3). Remove bolts (1) and
reposition valve assembly (2).
3. Remove remaining bolts (1).
4. Remove bolts (5) and cover assembly (6).
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5. Remove bolts (9) and bracket assembly (10). Remove cover assembly (12).
6. Disconnect hose assemblies (13). Disconnect harness assembly (14).
7. Disconnect harness assemblies (15) and (20). Disconnect hose assemblies (16), (17), (18),
and (19).
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8. Disconnect hose assembly (21). Disconnect hose assemblies (22).
9. Remove bolts (23). Remove all mounting hardware from harness assembly (24) and
reposition.
10. Disconnect hose assemblies (25).
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11. Remove bolts (26). Disconnect tube assembly (27).
12. Remove bolts (28) and reposition filter assembly (29). Remove bolts (30) and reposition
filter assembly (31).
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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14. Remove bolt (34) and gear (35).
15. Remove bolts (36) and auxiliary pump (37).
16. Remove Coupling (39) and O-ring seal (40). Remove bolts (38) and adapter (41).
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17. Remove bolts (42) and pilot pump (43).
18. Remove O-ring seal (44).
Wed Feb 12 16:19:33 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
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
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.
1. Remove bolts (2) , pump control (1) , and fitting (3) .
Right Pump Only
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2. Remove bolts (4) . Remove proportional reducing valve (5) from pump control (1) .
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.
4. Remove nut (10) from the pump control.
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5. Measure the length of screw (13) for installation purposes. Remove screw (13) . Remove
bolts (11) . Remove cover (12) from the pump control.
6. Remove stopper (14) from the pump control.
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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.
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.
10. Remove dowel pin (19) from the pin.
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11. Remove bolts (20) . Remove cover assembly (21) from the pump control.
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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Caterpillar Cat 320D2L Excavator (Prefix XCC) Service Repair Manual (XCC00001 and up).pdf

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