Dexter Laundry 500HD2.5 Original Instructions Manual page 78

FORWARD / REVERSE ADJUSTMENT
1. For forward (clockwise) rotation, push the forward /reverse switch to the left position.
2. For reverse (counterclockwise) rotation, push the forward/reverse switch to the right position. Although an
interlock prevents reversing the tool while the motor is running, allow it to come to a full stop before reversing.
WARNING: If the forward / reverse switch is in the central position, the tool can not be switched on.
VARIABLE SPEED TRIGGER SWITCH
WARNING: Always check that the power supply is the same as that indicated on the nameplate of the tool.
This tool has a variable speed switch which can reach higher speed with increased trigger pressure. Speed
is controlled by the pressure to the switch trigger. The variable speed feature is particularly useful when starting
drilling. It also enables you to select the best speed for a particular application.
To limit the maximum speed of the tool, rotate the dial on the front of the trigger until the desired setting is achieved.
Turn the dial to the "2" direction to increase the speed and to the "1" direction to decrease the speed.
NOTE: It is recommended to use the variable speed feature for a short time only. Do not continuously operate the tool
at different speeds. It may damage the switch.
START DRILLING
Start the tool by squeezing the variable speed trigger switch. Release the trigger to stop the tool.
HOLE DRILLING
When attempting to drill a large diameter hole, it is sometimes best to start with a smaller drill bit then work up to
the required size. This prevents overloading the drill.
WARNING: Many accidents occur because of unforeseeable situations. Please pay attention that drilling-
out a small hole may cause the drill bit to jam in the hole, especially when drilling metal.
Remember to use a "wood-pecker" action on deep holes to allow the swarf to be ejected from the hole.
- If the drill bit snags, switch off immediately to prevent permanent damage to the drill.
- Try running the drill in reverse to remove the bit.
- Keep the drill in line with the hole. Ideally, the drill bit should enter at right angles to the work. If the angle is
changed during drilling, this could cause the bit to snap off, blocking the hole and perhaps causing injury.
- Reduce pressure as the drill is about to break through the item being drilled.
- Don't force the drill, let it work at its own pace.
- Keep the drill bit sharp.
DRILLING WOOD
For maximum performance when drilling larger holes, use auger bits or spade bits for wood drilling.
- Set the tool to the drill mode.
- Begin drilling at a very low speed to prevent the bit from slipping off the starting point. Increase the speed as it
bites into the wood.
- When drilling through holes, place a block of wood behind the work piece to prevent ragged or splintered edges
on the back of the hole.
DRILLING METAL
For maximum performance, use HSS drill bits for metal drilling.
- Set the tool to the drill mode.
- Mark off the center of the hole using a center punch.
- Use a suitable lubricant for the material you are working on.
- Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
- Always clamp sheet metal. Support thin metal with a block of wood to avoid distorting it.
78 - EN