Draper CDH120V, CDH140V manual Changing Speeds, Trigger, Torque Control, Holding the Drill

OPERATION AND USE

CHANGING SPEEDS

To change the speed of the chuck, push the two-speed gearbox selection switch ✫✌, (fig. 6 and 7) forwards for low speed, or backwards for high speed.

IMPORTANT: ONLY CHANGE SPEED WHEN THE MACHINE IS STOPPED.

TRIGGER

When the trigger is depressed the chuck will rotate (provided the direction switch is set in the forward or reverse position). This trigger switch is electronic which enables the user to vary the speed continuously in both gears. The speed varies according to how far the trigger switch is depressed, the further it is depressed the faster the chuck will rotate and the lighter it is depressed, the slower it will rotate.

TORQUE CONTROL

By turning the collar ✬✌, (fig.8) it is possible to adjust the amount of torque.

In the “twist drill” setting , (fig.8), the drill has full torque. In the “hammer” setting

the hammer action is engaged.

Settings 1-10 can be used in either gear and provide a facility for setting the torque to the required level. For example this means that repetitive driving of screws of the same size will be driven into the material to the same torque, thus giving the same fixing strength, or in the case of countersunk screws, these will all be driven to the same depth in the material.

The torque control helps to prevent the heads of small diameter screws being twisted off when correctly set.

HOLDING THE DRILL

The drill casing is designed to be held comfortably in two ways.

1.By the handle (fig.9).

2.Or, by the in-line support grip (fig.10).

Fig.6.✫✌

Fig.7.

✫✌

Fig.8. ✬✌

Fig.9.

Fig.10.

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