Operators Manual - Pentruder Modular Drilling system
13
Gear change
1. Turn the lever on the hydraulic motor to the OFF position (see fig. 8) to stop the drill
unit. If the operator does not have supervision over the power pack, the power pack
should be switched off and the two 5/8” hydraulic hoses disconnected from the
hydraulic motor.
2. Push and turn the gearshift knob (see fig. 8) to desired gear position. To make the gear
engagement dogs mesh, turn the drill bit at the same time as the index knob is turned.
3. If you have disconnected the hydraulic hose, connect these again and start the power
pack. Turn the ON/OFF lever on the hydraulic motor to ON to start the drill unit.
Warning!
Make sure the gear change knob is in the correct position before drilling is commenced.
The gear position number should be aligned with the spot adjacent to the knob on the gearbox
casing. Should drilling be started with the gear in the wrong position, the gearbox may be
damaged.
