Stanley Black & Decker GTR20 Controls, Startup, USING THE 12 VOLT DC OUTLET, Operation, Auto-On

Flow Selector tool Circuit 2 Switch

Flow Selector tool Circuit 1 Switch

OPERATION

CONTROLS

This unit is equipped with an advanced proportional en- gine control system. It provides a means of controlling engine speed by adjusting the fuel control lever with an actuator. The Power Unit provides two 5 gpm/19 lpm up to 2000 psi/140 bar circuits or one 10 gpm/37.8 lpm up to 2000 psi/140 bar circuit.

Throttle Control Switch

Ignition Switch

Figure 3. Panel Control Valve

Two 5 gpm hydraulic tools can be connected to the tool circuit or one 10 gpm tool. The circuit is activated by turning one or both flow selector switches to 5 or both switches to 10 gpm. If both are at 10 gpm, 10 gpm can be had by connecting to either coupler set.

THROTTLE CONTROL

The throttle control permits the operator to select one of 2 operating modes after the engine has warmed up. When starting the engine, make sure the flow selector switch is in the OFF position. The throttle control switch can be set in either the AUTO-IDLE-ON or AUTO-IDLE- OFF positions.

AUTO-ON

When the throttle control switch is in the "AUTO-ON" position, the oil flow is regulated automatically when the trigger on the tool activated. When the tool is not being used the engine will return to idle automatically, after a 10 second delay.

This setting will produce one or two 5 gpm/19 lpm cir- cuits or one 10 gpm/37.8 lpm circuit depending on which postion the operator has selected with the flow selector switch.

AUTO-OFF

When the throttle control switch is in the "AUTO-OFF" position, the engine speed is held to maintain 5 gpm/19 lpm or 10 gpm/37.8 lpm depending on which position

12 ► GTR20 User Manual

the operator has selected with the flow selector switch. When a tool is not being used the engine will not return to idle until either the flow selector switch is turned to the off position or the throttle control switch is turned to auto-on.

Note: It may be necessary to reset the Controller.

At times it may be neccessary to reset the controller. This could happen if a fault occurs in the controller. For example, excessive engine speed. If a fault does occur the power unit will return to an idle and the operator will have no control of the unit. To reset the controller, simply turn off the power unit and restart it.

USING THE 12 VOLT DC OUTLET

A 12 VDC outlet is on specific models. The DC outlet is ON at all times.

IMPORTANT

The accessories (if left on) that are plugged

into this outlet could drain the battery.

STARTUP

Before starting the engine make sure the flow selector switches are in the OFF position.

Note: The power unit will not start if the flow selec- tor switches are not in the "OFF" position.

Pull choke knob out and move the Throttle Control Switch to the auto-idle-off or the auto-idle-on position, whichever mode of operation the operator prefers. En- sure the flow selector switch is in the OFF position.

Turn the Ignition Switch to the START position. After the engine starts, release the switch.

Gradually push in the choke knob as the engine begins to idle smoothly.

Allow the engine to warm up.

Connect hoses and the tool as desrcribed on pages 7 and 8.