Summary of Contents for Pentruder MDU3
- Page 1 Operator’s manual Pentruder ® MDU3 Core Drill and Pentruder ® Universal Drill Stand...
-
Page 2: Safety Icons In This Manual
With correct handling it offers outstanding performance, safety, and reliability. The Pentruder MDU3 represent a very modern and safe type of concrete core drill. It is developed and manufactured by Tractive AB in Sweden in a process where safety awareness, performance and reliability are the most important design parameters. -
Page 3: Validity
Page 3 Validity This operator’s manual is only valid for the Pentruder MDU3 core drill as described in Chapter 1 Description of the machine. Tractive AB always strives to improve the products. Therefore, we reserve the right to make technical changes without previous notice. -
Page 4: Table Of Contents
Version: 1.0 Date: 2025-03-07 Support & Service document Original instructions Copyright © 2025 Tractive AB. Pentruder and Pentpak are registered trademarks belonging to Tractive AB. Contents Safety icons in this manual ......................1 Introduction ..........................2 Validity ............................3 Description .......................... 5 Complete machine ........................ -
Page 5: Description
3. A BTS base plate 4. A TS Track 5. Minimum one track stop 6. QC Adapter + C-spanner as described in this Operator’s manual. Please note that a Pentruder MDU3 Core Drill is not complete without the modules listed in this paragraph. -
Page 6: Symbols
Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 6 Symbols and signs Refer to the Operator’s manual. This product is in accordance with applicable EC-directives. Warning sign The trash bin symbol is an environmental marking and indicates that this machine contains electrical/electronical equipment which should be recycled. -
Page 7: Safety Instructions
3-60: 100-900 rpm / 120 Nm 3-100: 5-450 rpm / 240 Nm d. Year of Manufacture e. Serial number of Pentruder MDU3 / - AF Symbols, see 1.2.1 a. Sign on Track Track stops should be mounted. See chapter 3.1.9 for instructions. -
Page 8: Intended Use Of The Machine
Good working practice should always be used along with common sense. Tractive cannot foresee every possible situation and this manual is not a substitute for professional skills and experience. The Pentruder MDU3 Core Drill may only be used for drilling of •... -
Page 9: General Safety Instructions
The personnel should be trained by personnel authorized by Tractive. A Pentruder machine used in the correct way is a safe and efficient tool. If the • machine is used improperly this can expose the operator and other persons staying in the same area to extreme danger or even risk of fatal injuries. -
Page 10: Safety Precautions At Site
Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 10 Safety precautions at site BEFORE CUTTING WARNING! Before cutting is commenced, make sure that; • There are no power lines, gas or piping which can be damaged by the machine. - Page 11 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 11 WARNING! RISK AREA • The risk area must be roped off and the operator must make sure that no unauthorized persons are within the risk area (the area around the machine.) Clear the working area and make sure no unauthorized persons are within the •...
-
Page 12: Preparations And Mounting
C-spanner for the QC-coupling for the drill bit. Included in delivery • • Level: Can be good to have. A level is also built in to the MDU3. • Measuring tape: Positioning of base plate in relation to cored hole. - Page 13 Never hit the column or track into position with a hammer or the like. • 3.1.4 Adjusting the drill angle The MDU3 has a built-in level indicator which is shown on the display to help with aligning the drilling angle. See 4.1.1.
- Page 14 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 14 a. Loosen the upper bolt on the back support. b. Loosen the lower bolt on the back support. c. Loosen the bolt on the upper brace and tilt the track d.
- Page 15 CER2, and pre-tighten the knob per hand to prevent it from 19 mm wrench, 25 Nm. falling off the CER2. Note! Make sure to tighten the knob properly so that the MDU3 doesn't losen from vibrations during drilling. Warning! Make sure the drill motor is disconnected from the electrical supply before it is fitted on the drill rig.
- Page 16 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 16 Manual feed with CER2-AF b. Use a Knuckle bar 400 mm 1/2" with a 19 mm hex a. To feed the machine manually along the track, the brake lever should socket or a hand crank (HK-2) for feeding.
- Page 17 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 17 3.1.8 Track stop The track stop must be used as a stop upwards and depending on the setup also downwards. • If tracks with only one gear rack are used, make sure all of them are positioned correctly to engage with the travel gear on the core drill.
-
Page 18: Connections
Water supply The MDU3 is water cooled and needs a minimum of 4 liters / 1 USG of cool water per minute at full power output. The water pressure should be at least 1 bar / 14 psi and maximum 6 bar / 87 psi. -
Page 19: User Interface
There are drop gear kits available to change model. Contact your authorized Pentruder distributor for more information. For each MDU3 model, there are totally 15 positions, 1 reverse, 1 neutral and 13 forward speeds. The spindle speed can be adjusted up and down during drilling. For optimal performance, try different spindle speeds until the core bit cuts well and the drilling goes fast and smooth. - Page 20 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 20 Peripheral speeds with MDU3-30 in meter per second MDU3-30 1000 1200 1400 1600 1800 Ø mm M/sec M/sec 12.6 14.1 M/sec 10.5 12.6 14.7 16.8 18.8 M/sec 10.5...
- Page 21 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 21 Peripheral speeds with MDU3-30 in SFPM MDU3-30 1000 1200 1400 1600 1800 Ø inch 2" SFPM 4" 1 047 1 257 1 466 1 676 1 885 SFPM 6"...
-
Page 22: Drilling
It is recommended to restrict power (torque x rpm) when drilling with a small diameter drill bit or a drill bit which is not well adapted to the object being cut. The MDU3 can put up to 8 kW power on the drill bit. There is a big risk of Note! overloading a small diameter drill bit which will inevitably damage the segments. -
Page 23: Operating The Mdu3
Connect the water supply and make sure there is a sufficient water pressure/flow available. Connect the MDU3 to the power source. The display will show the Pentruder logotype and then go over to show the MDU3 model, serial number, etc. - Page 24 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 24 4.1.2 Autofeed settings (if applicable) To access the menus and settings, turn the PWR dial to the symbol for menu and press the PWR dial. To navigate through the menus, turn the PWR dial and press to select.
- Page 25 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 25 Depth setting mode Zero point Position the core drill at the desired start height and set Zero point Move the cursor to + “Increase depth setting” and press/hold the PWR dial to desired depth.
- Page 26 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 26 Display 4 – Motor temperature high 4.1.2 Thermometer symbol starts blinking when machine temperature has reached a certain level. Power will be automatically reduced to prevent further temperature increase.
- Page 27 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 27 4.1.3 Starting and stopping the main motor/spindle Set desired spindle speed with the RPM-dial. See 3.4 b. Press the RPM dial to start the main motor, the spindle starts rotating.
- Page 28 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 28 drill bit! 4.1.7 Drilling at an angle When drilling at an angle it is important to only use a low feed pressure until the whole drill bit diameter is in the drilled material.
-
Page 29: Storage Of The Machine
Store the drill motor in a dry environment and in temperatures above freezing. If the temperature is below freezing, the water must be drained from the MDU3 drill motor. This is easily done by opening the water valve and pointing the water hose upwards. Position the drill motor as seen in the picture below. -
Page 30: Trouble Shooting And Pentruder App For Smartphone
Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 30 Trouble shooting and Pentruder app for smartphone Trouble shooting Issue Possible cause Error Solution code/ Symbol Too high feed pressure in relation Increase PWR setting, if possible. - Page 31 Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 31 Problem Possible cause Error Solution code/ Symbol If the 19 mm hex for manual feed rotates while trying to autofeed: Check the position of the brake Move the brake lever all the way to the lever.
-
Page 32: Error Codes
To be done. Please contact your authorized Pentruder service workshop for support. Pentruder app There is a Pentruder app available for download from Appstore (android and iPhone). The Pentruder app is not required to operate the MDU3 but it offers useful features:... -
Page 33: Maintenance
The maintenance in chapter 6.1 Every day / week maintenance should be performed by the operator or a service technician. The machine should be serviced by a Pentruder authorized technician every 200 running hours. Every day / week maintenance 6.1.1 Clean the machine, grease and lubricate, and check all functions The machine should be carefully cleaned using a water hose with a brush. - Page 34 6.1.5 Brake mechanism in CER2-AF carriage Make sure it is preventing the machine from falling freely along the track in manual position. The brake mechanism will wear over time and needs readjustment. Contact your authorized Pentruder service workshop. 6.1.6 Cables and connector Check that the machine cable and connector are undamaged and in faultless condition.
-
Page 35: Technical Data
Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 35 Technical data Pentruder MDU3 Core Drill 400V Input power: 10 kW Output power @ 16 Amp: 8 kW / 11 hp Drill bit range Ø: MDU3-30 / MDU2-30AF 50-300 mm / 2”-12”... -
Page 36: Declaration Of Conformity
Operator’s Manual Pentruder ® MDU3 Core Drill and Pentruder Universal Drill Rig Page 36 Declaration of conformity The Manufacturer: Tractive AB Gjutargatan 54 78170 Borlänge Sweden Person authorized to compile the technical file: Martin Persson Gjutargatan 54 78170 Borlänge Sweden...
Need help?
Do you have a question about the MDU3 and is the answer not in the manual?
Questions and answers