Download CAT Excavator 320 Electrical Hydraulic Schematic Manual PDF ( English )

The Caterpillar 320 Hydraulic Excavator stands as a world-renowned, high-performance earthmoving platform engineered to deliver exceptional digging force, precise hydraulic control, advanced technology integration, and superior fuel efficiency for demanding general construction, utility trenching, and road building applications. When complex electrical faults, hydraulic pressure drops, main pump regulator failures, or wiring harness damage occur across these sophisticated machine systems, having exact factory documentation combining both electrical and hydraulic schematics is essential for rapid diagnosis and repair. The CAT Excavator 320 Electrical Hydraulic Schematic Manual PDF is an authoritative digital reference created for professional heavy equipment mechanics, hydraulic technicians, and field service specialists. Providing crystal-clear wiring diagrams and fluid power schematics, this manual ensures you can isolate and resolve electrical and hydraulic failures with absolute confidence. www.themanualsgroup.com

MODEL COVERED :
CAT 320 Excavator

CONTENTS INCLUDED :
M0094182-02: 320 And 320 GC Excavator Electrical System , Cab 515-8071-06, Product Link 567-9460-01, Chassis And Cat Grade Control 556-9823-00, 455-6942-00 (For Serial Numbers XBJ1-20000 KTN10001-20000 HEX10001-20000 YCP1-20000)
M0094182-03: 320 And 320 GC Excavator Electrical System (Interactive) (Function Isolation), Cab WIRING-515-8071-06, Product LINK-567-9460-01, Chassis And Cat Grade CONTROL-556-9823-00, Engine WIRING-455-6942-00 (For Serial Numbers KTN10001-20000 HEX10001-20000 YCP1-20000 XBJ1-20000)
M0094703-02: 320 And 323 Excavator Electrical System (Interactive), Cab Wiring 515-8071-06, Product Link 567-9460-01, Chassis And Cat Grade Control 556-9824-00, Engine 417-1240-02 (For Serial Numbers KTY1-20000 DWF10001-20000 ZBN10001-20000 YBP10001-20000 BR610001-20000 YBL10001-20000 BR910001-20000)
M0095369-04: 320, 320 GC, 323, And 323 GC Excavator Hydraulic System (Interactive)(Function Isolation), Standard And Attachments – 490-3960-05 (For Serial Numbers FJM1-UP ZBN1-UP BR4215-UP YBP1-UP DYT1-UP XAR1-UP BR61-UP YBL1-UP BR91-UP KTY1-UP HDT1-UP RAZ996-UP HEX2106-UP XBJ1-UP KTN449-UP RGJ1-UP YTF1-UP NDL1-UP KFE1-UP LTN1-UP DWF133-UP KPE1-UP MYK1-UP JGY1-UP LKS1-UP DKJ1-UP YCP1-UP ZBT1-UP KHJ1-UP)
M0095369-05: 320, 320 GC, 323, And 323 GC Excavator Hydraulic System (Interactive)(Function Isolation) Standard And Attachments – 490-3960-05, (For Serial Numbers FJM1-20000 YTF1-10000 RGJ1-UP KHJ1-10000 KTN449-UP XBJ231-UP HEX2106-UP YCP1-UP RAZ996-UP HDT1-UP BR91-40000 KTY1-40000 YBL1-40000 BR61-40000 XAR1-20000 DYT1-20000 YBP1-UP ZBN1-40000 BR4215-40000 ZBT1-UP DKJ2165-40000 LKS1-20000 JGY1-20000 MYK1-20000 KFE1-20000 NDL1-20000 LTN1-20000 DWF133-40000 KPE1-20000)
M0100813-01: 320, 320 GC And 323 Excavator Hydraulic System (One-Way / One Pump) (Interactive), Schematic Part Number 552-5682-00 (For Serial Numbers KTY1-UP DKJ1-UP DYT1-UP BR41-UP ZBN1-UP YBL1-UP)
M0104613-01: 320, 320 GC, 323, 323 GC Excavator Hydraulic Schematic (Preliminary)
M0107795-01: 320 Excavator Electrical System (Function Isolation) (Interactive), Cab 515-8071-07, Product Link 579-0495-00, Chassis And CGC 575-7232-00, Engine 455-6942-00 (For Serial Numbers HEX20001-UP YCP20001-UP)
M0107795-02: 320 Excavator Electrical System Cab WIRING-515-8071-07, Chassis And CGC-575-7232-00, Product LINK-579-0495-00, Engine WIRING-455-6942-00, (For Serial Numbers YCP20001-UP HEX20001-UP)
M0107795-03: 320 Excavator Electrical System (Interactive)(Function Isolation), Cab Wiring-515-8071-07, Chassis and CGC-575-7232-00, Product Link-579-0495-00, Engine Wiring-455-6942-00, (For Serial Numbers YCP20001-UP HEX20001-UP)
M0107799-02: 320, 323, And 323 GC Excavator Electrical System (Interactive) (Function Isolation) , Cab 515-8071-07, Product Link 579-0495-00, Chassis And Cat Grade Control 575-7233-00, Engine 417-1240-02 (For Serial Numbers FJM1-10000 DYT1-10000 BR920001-30000 KTY20001-30000 YBL20001-30000 BR620001-30000 YBP20001-30000 ZBN20001-30000 DWF20001-30000)
M0107872-01: 320 And 320 GC Excavator Electrical System (Interactive)(Function Isolation), Cab 515-8071-07, Product Link 579-0495-00, Chassis 542-1361-01, Engine 558-1659-00 (For Serial Numbers LKS1-10000 KFE1-10000 MYK1-10000 JGY1-10000)
M0107872-02: 320 And 320 GC Excavator Electrical System(Interactive)(Function Isolation) Cab WIRING-515-8071-07, Product LINK-579-0495-00, CHASSIS-542-1361-01, ENGINE-558-1659-00, (For Serial Numbers JGY1-10000 MYK1-10000 KFE1-10000 LKS1-10000)
M0119201-01: 320 And 320 GC Excavator Electrical System (Interactive) (Function Isolation), 515-8071-07 Cab, 593-6840-00 Chassis, 558-1659-00 Engine, 594-2422-01 Prod. Link (For Serial Numbers LKS10001-UP JGY10001-UP MYK10001-UP KFE10001-UP)
M0119201-02: 320 And 320 GC Excavator Electrical System (Interactive) (Function Isolation), 515-8071-07 Cab, 593-6840-00 Chassis, 558-1659-00 Engine, 594-2422-01 Prod. Link (For Serial Numbers KFE10001-20000 MYK10001-20000 JGY10001-20000 LKS10001-20000)
M0119223-01: 320, 323, And 323 GC Excavator Electrical System (Interactive)(Function Isolation), Cab WIRING-515-8071-07, Product LINK-594-2422-01, Chassis And Cat Grade Control – 593-6838-00, ENGINE-417-1240-02 (For Serial Numbers XAR10001-20000 BR930001-40000 KTY30001-40000 YBL30001-40000 BR630001-40000 DYT10001-20000 YBP30001-UP NMC1-10000 ZBN30001-40000 DWF30001-40000 FJM10001-20000)
M0121465-00: 320 Excavator Electrical System (Interactive)(Function Isolation), Cab WIRING-515-8071,PRODUCT LINK-594-2422-01,CHASSIS-598-3423-00(FOR Serial Numbers ELW1-UP)
M0121465-02: 320 Excavator Electrical System (Interactive)(Function Isolation), Cab WIRING-515-8071,PRODUCT LINK-594-2422-01,CHASSIS-598-3423-00(FOR Serial Numbers ELW1-20000)
M0121467-00: 320 Excavator Hydraulic System (Interactive)(Function ISOLATION),STD-490-3960-04,FINE SWING-490-3961-01 (For Serial Numbers ELW1-UP)
M0128391-00: 320 Excavator Hydraulic System (Forestry Application) 607-4014-00
M0128391-01: 320 And 320 GC Excavator Hydraulic System – Forestry Application (Interactive)(Function Isolation), 607-4014-00 (For Serial Numbers NMC1-UP RSF1-UP)
M0129415-00: 320 And 320 GC Excavator Electrical System (Interactive)(Function Isolation), Cab WIRING-515-8071-08, CHASSIS-608-1620-00, ENGINE-558-1659-00, Product LINK-594-2422-01, (For Serial Numbers JGY20001-UP MYK20001-UP KFE20001-UP LKS20001-UP)
M0129415-01: 320 And 320 GC Excavator Electrical System(Interactive)(Function Isolation), Cab WIRING-515-8071-08,CHASSIS-608-1620-01,ENGINE-558-1659-00 And Product LINK-594-2422-01(FOR Serial Numbers JGY20001-30000 MYK20001-30000 KFE20001-30000 LKS20001-30000)
M0129459-00: 320, 323 And 323 GC Excavator Electrical System Cab WIRING-515-8071-08, Chassis And Cat Grade CONTROL-608-1618-00, ENGINE-417-1240-02, Product LINK-594-2422-01, (For Serial Numbers NMC10001-UP BR940001-UP KTY40001-UP YBL40001-UP BR640001-UP XAR20001-UP DYT20001-UP ZBN40001-UP DWF40001-UP FJM10001-UP)
M0129459-01: 320, 323 And 323 GC Excavator Electrical System Cab WIRING-515-8071-08, Chassis And Cat Grade CONTROL-608-1618-00, ENGINE-417-1240-02, Product LINK-594-2422-01, (For Serial Numbers FJM10001-UP DWF40001-UP ZBN40001-50000 DYT20001-30000 XAR20001-30000 BR640001-50000 YBL40001-UP KTY40001-UP BR940001-UP NMC10001-20000)
M0129459-02: 320, 323, And 323 GC Excavator Electrical System, Cab WIRING-515-8071-08, Chassis And Cat Grade CONTROL-608-1618-01, ENGINE-417-1240-02, Product LINK-594-2422-01, Product Link (CHINA)-605-3640-00 (For Serial Numbers FJM20001-30000 DWF40001-50000 ZBN40001-50000 DYT20001-30000 XAR20001-30000 BR640001-50000 YBL40001-50000 KTY40001-50000 BR940001-50000 NMC10001-20000)
M0132641-01: 320, 320 GC, 323, And 323 GC Excavator Hydraulic System (Interactive)(Function Isolation) Standard And ATTACHMENT-609-0139-00 , (For Serial Numbers JNX1-UP BR440001-UP ZBN40001-UP DYT20001-UP XAR20001-UP BR640001-UP YBL40001-UP KTY40001-UP BR940001-UP KHJ10001-UP YTF10001-UP WME1-UP FJM20001-UP GKW1-UP FMS1-UP EBZ1-UP KPE20001-UP DWF40001-UP LTN20001-UP NDL20001-UP KFE20001-UP MYK20001-UP JGY20001-UP LKS20001-UP DKJ40001-UP)
M0132641-02: 320, 320 GC, 323, And 323 GC Excavator Hydraulic System (Interactive)(Function Isolation) Standard And ATTACHMENT-609-0139-00 , (For Serial Numbers JNX1-UP BR440001-UP ZBN40001-UP DYT20001-UP XAR20001-UP BR640001-UP YBL40001-UP KTY40001-UP BR940001-UP KHJ10001-UP YTF10001-UP WME1-UP FJM20001-UP GKW1-UP FMS1-UP EBZ1-UP KPE20001-UP DWF40001-UP LTN20001-UP NDL20001-UP KFE20001-UP MYK20001-UP JGY20001-UP LKS20001-UP DKJ40001-UP RAZ30001-UP)
M0134889-00: 320 And 323 GC Excavator Electrical System ,cab WIRING-515-8071-08,PRODUCT LINK-605-3640-00,CHASSIS-604-0887-01,ENGINE-568-4399-00 (For Serial Numbers WME1-UP FMS1-UP)
M0134889-01: 320 And 323 GC Excavator Electrical System, Cab Wiring – 515-8071-08, Product Link (CHINA)-605-3640-00, Chassis – 604-0887-01, Engine – 568-4399-00 (For Serial Numbers FMS1-10000 WME1-UP)
M0134889-02: 320 And 323 GC Excavator Electrical System (Interactive) (Function Isolation), CAB-515-8071-08, Product Link (CHINA)-605-3640-00, Chassis And Cat Grade CONTROL-604-0887-01, ENGINE-568-4399-00 (For Serial Numbers FMS1-10000 WME1-10000)
M0156001-00: 320 Excavator Electrical System, Cab Wiring – 515-8071-08, Product Link (China) – 605-3640-00, Chassis And CGC – 621-7298-00, Engine – 568-4399-00 (For Serial Numbers FMS10001-UP)
M0156001-01: 320 And 323 GC Excavator Electrical System (Interactive) (Function Isolation), CAB-515-8071-08, Product Link (CHINA)-605-3640-00, Chassis And Cat Grade CONTROL-621-7298-00, ENGINE-568-4399-00 (For Serial Numbers FMS10001-20000 WME10001-20000)
M0156033-00: 320 Excavator Electrical System(Interactive)(Function Isolation),cab WIRING-515-8071-08,CHASSIS WIRING-612-8465-01,PRODUCT LINK-594-2422-01 (For Serial Numbers ELW20001-30000)
M0156351-00: 320 Excavator Electrical System, Cab Wiring 515-8071-08, Chassis Wiring 622-1350-00, Product Link 594-2422-01 (For Serial Numbers ELW30001-UP)
M0156351-01: 320 Excavator Electrical System(Interactive)(Function Isolation), Cab WIRING-515-8071-08, Chassis And CGC-622-1350-00, Product LINK-594-2422-01, (For Serial Numbers ELW30001-40000)
M0157063-00: 320 Excavator Electrical System , CAB-515-8071-08, Chassis 621-7295-00 , Engine 417-1240-02 , Product Link 594-2422-01,PRODUCT Link(China) 605-3640-00 (For Serial Numbers ZBN50001-UP DYT30001-UP XAR30001-UP BR650001-UP NMC20001-UP)
M0157063-01: 320, 323, And 323 GC Excavator Electrical System, Cab WIRING-515-8071-08, Chassis And Cat Grade CONTROL-621-7295-00, ENGINE-417-1240-02, Product LINK-594-2422-01, Product Link (CHINA)-605-3640-00 (For Serial Numbers ZBN50001-60000 DYT30001-40000 XAR30001-40000 BR650001-60000 NMC20001-30000 BR950001-60000 YBL50001-60000 KTY50001-60000 DWF50001-60000 FJM30001-40000)
M0157399-00: 320 And 320 GC Excavator Electrical System (Interactive) (Function Isolation) Cab WIRING-515-8071-08, CHASSIS-621-7296-00, ENGINE-558-1659-00, Product LINK-594-2422-01 (For Serial Numbers JGY30001-UP MYK30001-UP KFE30001-UP LKS30001-UP)
M0157399-01: 320 And 320 GC Excavator Electrical System(Interactive)(Function Isolation),cab WIRING-515-8071-08,CHASSIS-621-7296-00,ENGINE-558-1659-00 And Product LINK-594-2422-01 (For Serial Numbers KFE30001-40000 MYK30001-40000 JGY30001-40000 LKS30001-40000)
M0165635-00: 320 And 323 Excavator People Detection Kit Electrical System (Interactive)(Function Isolation) 608-0201-02, (For Serial Numbers ZBN1-UP XAR1-UP DYT1-UP NMC1-UP KFE1-UP MYK1-UP FMS1-UP ELW1-UP BR91-UP YBL1-UP KTY1-UP NDL1-UP LTN1-UP DWF1-UP KPE1-UP GKW1-UP BR61-UP)
M0165635-01: 320, 323, 325, 326, 330 and 335 Excavator People Detection kit Electrical System(Interactive)(Function Isolation) 608-0201-02
M0165729-00: 320 Excavator Electrical System, CAB-515-8071-09, Chassis WIRING-636-0940-00, ENGINE-417-1240-02, Product LINK-636-2543-00, Product Link (CHINA)-636-2545-00 (For Serial Numbers NMC30001-UP FJM40001-UP BR660001-UP XAR40001-UP ZBN60001-UP DYT40001-UP BR960001-UP YBL60001-UP KTY60001-UP DWF60001-UP)
M0165729-01: 320, 323, and 323 GC Excavator Electrical System, Cab-515-8071-09, Chassis Wiring-636-0940-00, Engine-417-1240-02, Product Link-636-2543-00, Product Link (China)-636-2545-00 (For Serial Numbers BR960001-70000 YBL60001-70000 KTY60001-70000 DWF60001-70000 FJM40001-50000 ZBN60001-70000 DYT40001-50000 XAR40001-50000 BR660001-70000 NMC30001-40000)
M0166185-00: 320 Excavator Electrical System CAB-515-8071-09, Chassis And CGC-636-0965-00, Product LINK-636-2543-00, (For Serial Numbers ELW40001-UP)
M0166457-00: 320 And 320 GC Excavator Electrical System ,CAB-515-8071-09,CHASSIS-636-0945-00,ENGINE-558-1659-00 And Product LINK-636-2543-00 (For Serial Numbers JGY40001-UP MYK40001-UP KFE40001-UP LKS40001-UP)
M0166457-01: 320 and 320 GC Excavator Electrical System(Interactive)(Function Isolation) Cab-515-8071-09, Chassis-636-0945-00, Engine-558-1659-00, Product Link-636-2543-00, (For Serial Numbers JGY40001-50000 MYK40001-50000 KFE40001-50000 LKS40001-50000)
M0166459-00: 320 And 323 GC Excavator Electrical System, CAB-515-8071-09, Chassis And Cat Grade CONTROL-636-0960-00, ENGINE-568-4399-00 (For Serial Numbers FMS20001-UP WME20001-UP)
M0166459-01: 320 and 323 GC Excavator Electrical System Cab-515-8071-09, Chassis and CAT Grade Control-636-0960-00, Engine-568-4399-00, Product Link-636-2545-00, (For Serial Numbers FMS20001-30000 WME20001-30000 )
M0175279-00: 320 and 320 GC Excavator Electrical System Cab-515-8071-10, Chassis-650-1763-00, Engine-558-1659-00, Product Link-636-2543-00, (For Serial Numbers JGY50001-UP MYK50001-UP KFE50001-UP LKS50001-UP)
M0175338-00: 320, 323, and 323 GC Excavator Electrical System, Cab-515-8071-10, Chassis Wiring-650-1757-00, Engine-417-1240-02, Product Link-636-2543-00, Product Link (China)-636-2545-00, Cab-GC Comfort-609-2366-02, Cab-GC Comfort (DAB)-644-4109-01 (For Serial Numbers NMC40001-UP BR970001-UP YBL70001-UP KTY70001-UP DWF70001-UP FJM50001-UP ZBN70001-UP DYT50001-UP XAR50001-UP BR670001-UP)
M0176389-00: 320 and 323 GC Excavator Electrical System Cab-515-8071-10, Chassis and CAT Grade Control-650-1761-00, Engine-Engine-00, Product Link-636-2545-00, (For Serial Numbers FMS30001-UP WME30001-UP)
RENR3725-00: Caterpillar 320 Bu Excavator Electrical System
SENR5457-01: 320 And 320L Excavator Hydraulic System
SENR5479-04: 325 L Excavator 320, 325, And 330 Feller Buncher 320, 325, And 330 Log Loader Electrical System (Interactive)(Function ISOLATION),100-8173-01-FELLER BUNCHER,100-7952-01-LOG Loader (For Serial Numbers 8FK1-UP 7LM1-UP 8NK1-UP 9KK1-UP)
SENR6015-02: 320, 320L Excavator Electrical System 7Y-3905-02 (For Serial Numbers 2DL1-213, 8LK1-1275, 1KL1-441, 9KK1-1358). All Other Serial Numbers 1-UP)
SENR6016-01: 320 Excavators Hydraulic System – Attachment Boom Lowering Control Valve
SENR6092-00: 320 And 320L Excavators Hydraulic System – Attachment – Two Speed Hammer (7I-1162)
SENR6095-00: 320 And 320 L Excavators Hydraulic System – Attachment – Two Pump Flow 7I-1165
SENR6096-00: 320 Excavator Hydraulic System – Attachment – Boom Lowering Check Valve (7I-1166)
SENR6097-01: 320 Excavator Hydraulic System – Attachment – Fine Swing 7I-1167
SENR6238-02: 320 And 320 L Excavators Electrical System (Interactive)(Function ISOLATION),7Y-3905-05 (For Serial Numbers 4JM1-UP 1KL442-UP 9KK1359-UP 2DL214-UP 8LK1276-UP)
SENR6242-00: Caterpillar 320, 320N, 320L And 320S Excavators Electrical System
UENR6218-00: 320 And 323 Excavator Electrical System (Pilot) (For Serial Numbers YBL201-204, ZBN231-237)
UENR6611-04: 320, 320 GC, And 323 Excavator Hydraulic System (Interactive)(Function Isolation), Standard And Attachments – 490-3960-03 (For Serial Numbers KTN1-448 DWF1-132 DKJ1-2164 BR41-214 ZBT1-UP ZBN1-UP YBP1-UP BR61-UP YBL1-UP BR91-UP RAZ1-995 HEX1-2105 XBJ1-230)
UENR8062-04: 320 And 320 GC Excavator Electrical System (Interactive)(Function Isolation), Cab Wiring 515-8071-05, Chassis 515-8073-04, Engine 455-6942-00, CGC-518-2675-03 (For Serial Number KTN1-10000 HEX1-10000)
UENR8062-05: 320 And 320 GC Excavator Electrical System (Interactive)(Function Isolation), Cab Wiring 515-8071-05, Chassis 515-8073-04, Engine 455-6942-00, CGC-518-2675-03 (For Serial Number KTN1-10000 HEX1-10000)
UENR8062-06: 320 And 320 GC Excavator Electrical System (Interactive)(Function Isolation), Cab Wiring 515-8071-05, Chassis 515-8073-04, Engine 455-6942-00, CGC-518-2675-03 (For Serial Number KTN1-10000 HEX1-10000)
UENR8063-03: 320 And 323 Excavator Electrical System (Interactive), Cab 515-8071-05, Chassis 515-8074-04, Engine 417-1240-02, Cat Grade Control 518-2675-03 (For Serial Numbers BR91-10000 DWF1-10000 ZBN1-10000 YBP1-10000 BR61-10000 YBL1-10000)
UENR8065-01: 320 And 323 Excavator Hydraulic System Attachment (Combined Function – Electric Relief), 490-3963-01
UENR8066-02: 320, 320 GC, 323, And 323 GC Excavator Hydraulic System (Combined Function – Manual Relief (Tool 25)) (Interactive), Schematic Part Number 490-3965-00 (For Serial Numbers FJM1-UP JGY1-UP LKS1-UP DKJ1-UP ZBT1-UP BR41-UP ZBN1-UP YBP1-UP BR61-UP YBL1-UP BR91-UP XBJ1-UP KTN1-UP DYT1-UP)
UENR8067-01: 320, 320GC, And 323 Excavator Hydraulic System Medium Pressure (Interactive), 490-3964-02
UENR8068-00: 320 GC, 320 And 323 Excavator Hydraulic System – Smart Boom (Interactive), 490-3974-02
UENR8069-00: 320 GC, 320 And 323 Excavator Hydraulic System – Attachment, Boom And Stick Lowering Control, 490-3969-02, 490-3970-02
UENR8077-01: 320, 320 GC, And 323 Excavator Hydraulic System – Attachment – Quick Coupler (Interactive), 490-3975 (For Serial Numbers DKJ1-UP BR41-UP ZBN1-UP BR61-UP YBL1-UP BR91-UP YBP1-UP ZBT1-UP DWF1-UP RAZ1-UP HEX1-UP KTN1-UP)
UENR8085-00: 320 And 323 Excavator Hydraulic System Attachment (Variable Adjustable Boom) (Interactive), 490-3973-01

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