The system is made up of a machine controller and flow control proportional reducing valves, and performs flow control against parallel circuits and reduction horsepower control of main pump when ATT pump is in use.
The machine ECM can hold programs for ten different tool settings. Control parameters for a maximum of four different spools are included in one type of tool setting. The control parameters contain not only the oil flow, but also the engine speed and the output limit value for the main pumps. One or two pump change over for hydraulic hammer and one or two-way flow change over are performed automatically by control parameters.
The tool control system is set by the factory and stored in the ECM. The default parameters of the work tool that can be changed are explained for each tool control system.
The machine configuration is determined by the valve control circuit on the machine. The tool parameter setting is dependent upon the machine configuration setting. The tool control system should only be changed on the monitor if certain components on the machine are changed first.
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#".
The component configurations for each of the tool control systems are described in Table 1.
| Identification for the Tool Control System | |||||
| Tool Control System | Engineering Nomenclature | Machine Application(1) | Control Device | Tool Relief Valve | Comparable D-Series Tool Control System |
| Combined Function - Hydraulic Control | Tool 10 | "Common - Hydraulic" | Hydraulic Pedal | Electric | System 2 |
| Combined Function - Hydraulic Control (Medium Pressure) | Tool 10 w/ Medium Pressure | "Multi-Proc - Hydraulic" | Hydraulic Pedal | Electric | System 11 |
| One-Way / One or Two Pump - Hydraulic Control | Tool 11 | "Hammer - Hydraulic" | Hydraulic Pedal | Mechanical | System 1
System 3 Prime |
| Combined Function - Electric Control | Tool 20 | "Multi-Proc - Electrical" | Electric Control(2) | Electric | System 13
System 14 System 23 System 24 |
| Combined Function - Electric Control (Direct Return)(3) | Tool 20 w/ Direct Return | "Multi-Proc - Electrical" | Electric Control(2) | Electric | System 17
System 18 |
| One-Way / One or Two Pump - Electric Control | Tool 21 | "Hammer - Electrical" | Electric Control(2) | Mechanical | System 3
System 22 |
| One-Way / One or Two Pump - Electric Control (Direct Return)(3) | Tool 21 w/ Direct Return | "Hammer - Electrical" | Electric Control(2) | Mechanical | System 16 |
| Two-Way / One Pump | Tool 25 | "Thumb" | Electric Control(4) | - | System 5 |
| Medium Pressure(5) | Medium Pressure | "Auxiliary Pump - Electrical" | Electric Control | Mechanical | Medium Pressure |
| (1) | Monitor Setup Option > "Service" > "Configurations" > "Aux Hyd Attachment" > "Machine Application" |
| (2) | Joystick with Thumb Wheel, Electric Foot Pedal, Foot Switch |
| (3) | Direct Return available on 336E only |
| (4) | Joystick with Thumb Wheel, Electric Foot Pedal |
| (5) | For use with Tool 20 only |
The tool systems can be identified based on the number and type of components on the machine.
Combined Function - Electric Control
A machine configured with a Combined Function with Electric Control will have the following components:
- Two variable relief valves located in the swing motor compartment above the boom foot.
- Four proportional reducing valves to control the attachment control valves located in the main pump compartment.
- Electric controls in the cab
Refer to Illustrations 1, 2, and 3 for component descriptions.
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| Illustration 1 | g03618777 |
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Two Variable Reliefs located above the boom foot | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, these valves are mounted on the boom.
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| Illustration 2 | g03620996 |
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Four Proportional Reducing Valves located in the pump compartment | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, these valves are located behind the main control valve.
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| Illustration 3 | g02722460 |
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Electric Controls in the cab (A) Joysticks with Thumb wheel (B) Electric Foot Pedal (C) Foot Switch | |
One-Way / One or Two Pumps - Electric Control
A machine configured with a One-Way flow from One or Two Pumps with Electric Control will have the following components:
- One mechanical relief valve located in the swing motor compartment above the boom foot.
- Two proportional reducing valves to control the attachment control valves located in the main pump compartment.
- Electric controls in the cab
Refer to Illustrations 4, 5, and 6 for component descriptions.
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| Illustration 4 | g03618842 |
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Mechanical Tool Relief located above the boom foot | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, this valve is mounted on the boom.
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| Illustration 5 | g03621416 |
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Two Proportional Reducing Valves located in the pump compartment | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, these valves are located behind the main control valve.
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| Illustration 6 | g02722460 |
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Electric Controls in the cab (A) Joysticks with Thumb wheel (B) Electric Foot Pedal (C) Foot Switch | |
A machine configured with a Two-Way flow from One Pump will have the following components:
- No dedicated tool relief valve. Only line reliefs on the main control valve.
- Four proportional reducing valves to control the attachment control valves located in the main pump compartment.
- Electric controls in the cab
Refer to Illustrations 7 and 8 for component descriptions.
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| Illustration 7 | g03620996 |
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Four Proportional Reducing Valves located in the pump compartment | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, these valves are located behind the main control valve.
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| Illustration 8 | g02722460 |
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Electric Controls in the cab (A) Joysticks with Thumb wheel (B) Electric Foot Pedal (C) Foot Switch | |
Medium Pressure Hydraulic System
A machine configured with a Medium Pressure system is only found on machines with Combined Function with Electric Control and will have the following components:
- Medium Pressure control valve located in the swing motor compartment.
- Two proportional reducing valves located below the medium pressure control valve.
- Electric control in the cab.
Refer to Illustration 9 and 10 for component descriptions.
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| Illustration 9 | g03618978 |
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Medium pressure valve with proportional reducing valves for control located in the swing motor compartment (cab side) | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, this valve is mounted on the boom.
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| Illustration 10 | g02722564 |
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Left Joystick with Thumb wheel | |
Combined Function - Hydraulic Control
A machine configured with a Combined Function with Hydraulic Control will have the following components:
- Two variable relief valves located in the swing motor compartment above the boom foot.
- Four proportional reducing valves to control the attachment control valves located in the main pump compartment.
- Hydraulic controls in the cab
Refer to Illustrations 11, 12, and 13 for component descriptions.
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| Illustration 11 | g03618777 |
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Two Variable Reliefs located above the boom foot | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, these valves are mounted on the boom.
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| Illustration 12 | g03620996 |
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Four Proportional Reducing Valves located in the pump compartment | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, these valves are located behind the main control valve.
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| Illustration 13 | g02722595 |
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Hydraulic foot pedals located in the cab | |
Combined Function - Hydraulic Control with Medium Pressure
A machine configured with a Medium Pressure system for Combined Function will have the following components:
- Medium Pressure control valve located in the swing motor compartment.
- Hydraulic control in the cab.
Refer to Illustration 14 and 15 for component descriptions.
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| Illustration 14 | g03620644 |
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Medium pressure valve located in the swing motor compartment (cab side) | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, this valve is mounted on the boom.
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| Illustration 15 | g02722600 |
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Hydraulic foot pedal located in the cab | |
One-Way / One or Two Pumps - Hydraulic Control
A machine configured with a One-Way flow from One or Two Pumps with Electric Control will have the following components:
- One mechanical relief valve located in the swing motor compartment above the boom foot.
- Two proportional reducing valves to control the attachment control valves located in the main pump compartment.
- Hydraulic controls in the cab
Refer to Illustrations 16, 17, and 18 for component descriptions.
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| Illustration 16 | g03618842 |
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Mechanical Tool Relief located above the boom foot | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, this valve is mounted on the boom.
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| Illustration 17 | g03621416 |
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Two Proportional Reducing Valves located in the pump compartment | |
Note: For Reduced Radius (RR) and Compact Radius (CR) machines, these valves are located behind the main control valve.
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| Illustration 18 | g02722605 |
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Hydraulic foot pedal located in the cab | |