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Caterpillar Excavators 320D/320D L/323D Factory Service & Shop Manual


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Complete workshop & service manual with electrical wiring diagrams for Caterpillar Excavators 320D, 320D L, 323D. It’s the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Caterpillar Excavators Caterpillar Excavators 320D, 320D L, 323D service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

MANUAL LIST:
KENR6098 – Schematic (320D Excavator Hydraulic System – Attachment)
KENR6099 – Schematic (320D and 323D Excavator Hydraulic System – Attachment)
KENR6113 – Schematic (320D Excavator Hydraulic System – Attachment)
KENR6115 – Schematic (320D Excavator Hydraulic System – Attachment)
KENR6118 – Schematic (320D Excavator Electrical System)
KENR6119 – Schematic (320D and 323D Excavator Hydraulic System – Attachment)
KENR6120 – Schematic (323D Excavator Hydraulic System – Attachment)
KENR6121 – Schematic (323D Excavator Hydraulic System – Attachment)
KENR6122 – Schematic (320D, 321D, 323D, 324D, 325D, 329D, 330D, 336D, 336D2, 336D MHPU Excavator Hydraulic System – Attachment)
KENR6123 – Schematic (323D Excavator Hydraulic System – Attachment)
KENR8645 – Schematic (320D, 322D, 323D, 324D, 325D, 329D, 330D, 336D2 & 340D2 Excavator Electrical System)
RENR7149 – Schematic (320D & 323D Excavator Hydraulic System – Attachment)
RENR7156 – Schematic (320D and 323D Excavator Hydraulic System)
RENR7157 – Schematic (320D and 323D Excavator Hydraulic System – Attachment)
RENR7244 – Schematic (323D Excavator Hydraulic System – Attachment)
RENR7293 – Specifications (320D and 323D Excavators Machine System Specifications)
RENR7294 – Systems Operation (320D and 323D Excavators Hydraulic System)
RENR7295 – Testing and Adjusting (320D and 323D Excavators Hydraulic System)
RENR7296 – Schematic (320D and 320D L Excavator Hydraulic System)
RENR7404 – Schematic (320D and 323D Excavator Hydraulic System – Attachment)
RENR7439 – Schematic (320D and 323D Excavator Hydraulic System – Attachment)
RENR7500 – Disassembly & Assembly (323D Excavator Machine Systems)
RENR8614 – Disassembly and Assembly (320D Excavator Machine Systems)
RENR8650 – Disassembly and Assembly (320D Excavator C6.4 Engine Supplement)
RENR9104 – Schematic (320D Excavator Hydraulic System – Attachment)
RENR9107 – Schematic (320D Excavator Hydraulic System – Attachment)
RENR9209 – Disassembly and Assembly (323D Excavator 3066 Engine Supplement)
RENR9896 – Schematic (323D Excavator Hydraulic System)
RENR9897 – Schematic (323D Excavator Electrical System)
RENR9972 – Schematic (323D Excavator Hydraulic System – Attachment)
RENR9998 – Schematic (323D Excavator Hydraulic System – Attachment)
SEBP4874 – Parts Manual (320D & 320D L Excavators)
SENR5664 – Disassembly & Assembly (Air Conditioning & Heating R134a for All Caterpillar Machines)
SENR5664 – Specifications (Air Conditioning & Heating R134a for All Caterpillar Machines)
SENR5664 – Systems Operation (Air Conditioning & Heating R134a for All Caterpillar Machines)
SENR5664 – Testing & Adjusting (Air Conditioning & Heating R134a for All Caterpillar Machines)
SENR5664 – Troubleshooting (Air Conditioning & Heating R134a for All Caterpillar Machines)
SENR6572 – Disassembly & Assembly (Zexel Fuel System)
UENR2514 – Schematic (320D Excavator Hydraulic System – Attachment)
UENR3685 – Schematic (320D Excavator Electrical System)
UENR5820 – Schematic (320D Excavator Electrical System)
KENR6122 – Schematic (320D, 321D, 323D, 324D, 325D, 330D Excavator Hydraulic System – Attachment).pdf
SENR6572 – Systems Operations (Zexel Fuel System).pdf
SENR6572 – Testing & Adjusting (Zexel Fuel System).pdf

EXCERPT:
Auxiliary Pilot Valve (Straight Travel) – Disassemble
Disassembly Procedure
Start By:
a. Remove the auxiliary pilot control valve. Refer to Disassembly and Assembly, “Auxiliary Pilot Valve (Straight Travel) – Remove”.
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will prevent dirt from entering the internal mechanism.
Note: During the disassembly of the auxiliary pilot control valve, put identification marks on each component for assembly purposes.
1. Remove bellows (1) from the pilot valve.

Fuel Pump Housing
SMCS – 1253-015; 1253-016
Disassemble Fuel Injection Pump Housing
Start By:
a. separate governor from fuel injection pump housing
NOTE: Clean the outside of the fuel injection pump before disassembly and drain the pump camshaft chamber.
1. Remove three nuts (1) and washers.
2. Remove fuel priming and transfer pump (2). For details on disassembly and assembly of the fuel priming and transfer pump see the topic “Disassemble and Assemble Fuel Priming and Transfer Pump” in this module.
3. Check O-ring seal (3) on fuel priming and transfer pump (2). Replace if necessary.
4. Remove two bolts (4) and washers.
5. Remove cover (5). Remove the gasket on the back of cover (5).
6. Install Tool (D) to rotate the camshaft until the tappets are in the top center position.
7. Insert Tool (N), (tappet holders) into the small holes (6) on the tappet body to separate the tappet from the camshaft.
8. Rotate the fuel injection pump housing on its side and remove six screws plugs (7).
9. Remove two center bearing screws (8) with a screwdriver.
10. Rotate the camshaft until the key groove is facing up, remove Tool (D), use Tools (L and K) to remove Tool (D).
11. Remove four bearing cover bolts (9).
12. Tap the camshaft lightly from the governor end with a soft hammer to loosen bearing cover (10).
Remove bearing cover (10).


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