Operator’s manual for the Pentruder MD1 Modular Drill System with MDU9 Modular Drive Unit - Original instructions
Page 40
Warning!
•
The operator must understand that the feed is very powerful too. It is
driven by a really slow worm gear transmission, and very little effort
is needed on the feed handle to give an enormous feed force on the
drill bit. With only one M12 anchor, the anchor can actually be pulled
out of the concrete.
5.2.10
Stopping the drill motor / spindle rotation
a. To stop the drill motor, press the Motor ON/OFF button (M) once.
Note!
If the Motor ON/OFF button is pressed again, when the motor is slowing down but still
rotates, nothing happens. The Motor ON/OFF button has no influence on the motor operation
until the motor has stopped completely.
The red Stop button can also be used to stop the motor operation. If the red Stop button has been
pushed in, both LED’s will flash red and there will at the same time be a beeping sound. Pull out
the red STOP button and start the drill motor with the motor On/Off button.
5.2.11
Reverse gear
The reverse gear is practical to use to thread
on and off the drill bit.
a. To select Reverse Gear, first select “R” on the M-
dial. If already running, the spindle will be stopped.
b. When the spindle has stopped, push the motor
ON/OFF button and the spindle slowly starts in
reverse direction, with limited torque. Sometimes it
happens that the reverse will not start when the start
button is pressed. Then the drill spindle/drill bit must
be turned slightly and then the push button is pressed
again. If necessary repeat this procedure until reverse
starts.
Both LED:s will be light blue.