320C and 322C Excavators Attachment Hydraulic System – System Identification

Table 1
Tool Control System Identification Chart for 320C to 330C    
Tool Control System     Number of Control Valves     Slide Control on Joystick     Auxiliary Pump     Pedal/Switch Type     One or Two Pump Flow     Inst. Panel Switch for 1Way/2Way or 1Pump/2Pump     Possible Oil Flow Direction     Medium Pressure Circuit    
1     1             Hydraulic Foot Pedal (1)     1     No     One Way        
2     2             Hydraulic Foot Pedal (2)     1 or 2     Yes     One or Two-Way        
3     2             Electric Foot Switch (1)     2     No     One Way        
3′     2             Hydraulic Foot Pedal (1)     2     No     One Way        
5     1             Hydraulic Foot Pedal (1)     1     No     Two-Way        
11     3             Hydraulic Foot Pedal (2)     1 or 2     Yes     One or Two-Way     Yes    
12 (1)                                    
14     3     Yes     Yes         1 or 2     No     One or Two-Way     Yes    
15     1             Joystick Switch     1     No     Two-Way        
16     1             Hydraulic Foot Pedal (1)     1     No     One Way        
17     3     Yes     Yes     Hydraulic Foot Pedal (1)     1 or 2     No     One or Two-Way     Yes    
( 1 ) This Tool Control System is not described in this manual. The Tool Control System is included here for completeness only. The Tool Control System will display on the monitor and Cat® ET.



Illustration 1 g00894051

Main Control Valve

(1) Attachment Control Valve

(2) Auxiliary Control Valve

(3) Auxiliary Control Valve (Medium Pressure)

System 1, System 5, System 15 and System 16 use only attachment control valve (1) .

System 2, System 3 and System 3 Prime use only attachment control valve (1) and auxiliary control valve (2) .

System 11, System 14 and System 17 use attachment control valve (1), auxiliary control valve (2), and the auxiliary control valve (medium pressure) (3) .

320C, 322C and 325C excavators can have a tool control system on the machine. Refer to the table in order to determine the tool control system. The tool control system is set by the factory and stored in the ECM.

Refer to the Systems Operation for a description of each system.

The tool control system should only be changed on the monitor if certain components on the machine are changed first.

Each tool control system has five “TOOL#s”. Some tool control systems have parameters that can be set for each “TOOL#”. In order to customize the “TOOL#” for a particular work tool, change the parameter values for the work tool. The default parameters of the work tool that can be changed are explained for each tool control system.

The correct “TOOL#” must be selected during the operation of the work tool. Parameters for the “TOOL#” must be properly programmed. Refer to the specifications of the manufacturer in order to set the parameters of the “TOOL#”.