mafell DDF 40 Duo Dowel Jointer Instruction Manual

October 30, 2023
mafell

mafell DDF 40 Duo Dowel Jointer Instruction Manual
mafell DDF 40 Duo Dowel Jointer

Signs and symbols

This symbol appears at places where you will find instructions for your own safety.
Non-compliance with these instructions may result in very serious injuries.

This symbol indicates a potentially hazardous situation.
If this situation is not avoided, the product or objects in its vicinity may get damaged.

This symbol indicates tips for the user and other useful information.

Product information

in respect of machines with item number 918601, 918602, 918620, 918621, 918622, 918623, 918625, 918626

Manufacturer´s data
MAFELL AG, Beffendorfer Straße 4, D-78727 Oberndorf / Neckar, Phone +49 (0)7423/812-0, Fax +49 (0)7423/812-218

Machine identification
All details required for machine identification are available on the attached rating plate

symbols
Protection class I
Machine must be grounded for operation.

CE symbol to document compliance with the basic safety and health requirements according to Appendix I of the Machinery Directive.

For EU countries only
Do not dispose of electric tools together with household waste material!

In accordance with the European directive 2002/96/EC on waste electrical and electronic equipment and transposition into national law, obsolete electrical tools must be collected separately and recycled in an environmentally- compatible manner.

symbols
To reduce the risk of injury, please read the operating instructions

Technical data

Universal motor, radio and TV interference suppressed 230 V~, 50 Hz
Power input (nominal load) 900 W
Current at nominal load 3.9 A
Drill bit distance 32 mm (1.26 in.)
Drilling depth 0 – 40 mm (0 – 1.57 in.)
Swivel range 0 – 90°
Tool diameter maximum 12.2 mm (4.80 in.)
Tool diameter minimum 3 mm (0.12 in.)
Tool mounting hole 8 mm (0.31 in.)
Tool idling speed 8000 rpm
Outside diameter hose connector 29 mm (1.14 in.)
Weight without mains cable 2,8 kg (6.17 lbs)
Dimensions (W x L x H) 145 x 300 x 164 mm (5.71 x11.81 x 6.46 in.)

Emissions

The values stated are emission levels. Although there is a correlation between emission and imission level, it cannot be reliably derived from this whether additional precautions are necessary. Factors influencing the current immission level existing at the workplace comprise the duration of exposure, the room characteristic, other sources of noise, etc. such as e.g. the number of machines and other adjacent machining operations. In addition, the permissible immission level may differ from country to country. This information is nevertheless suitable for providing the machine user with an improved assessment of the hazard and risk.

Noise emission specifications

Noise emission values determined according to EN 60745:

Sound pressure level LPA = 82 dB (A)
Uncertainty KPA = 3 dB (A)
Sound power level LWA = 93 dB (A)
Uncertainty KWA = 3 dB (A)

The noise measurement was recorded using the tool included in the standard equipment.

Vibration specifications

The typical hand-arm vibration according to EN 62841 is 3 m/s2

Scope of supply

  • Item-No. 918601, 918625: 1 position indicator PAZ
  • 2 carbide-tipped dowel drill bits ø 8 mm (0.31 in.): 1 Allen key with handle
  • 1 package wooden dowels ø 8×30 mm (approx. 200 pcs.): 1 bottle of glue
  • 1 additional support plate ZA : 2 anti-slip mats
  • 1 additional stop set ZAG : 1 carrying case
  • 1 hose connector: 1 operating manual folder “Safety instructions

DDF 40 MaxiMAX

  • Item number 918602, 918620, 918621, 918622, 918623, 918626
  • 2 carbide-tipped dowel drill bits ø 6 mm (0.24 in.)
  • 2 carbide-tipped dowel drill bits ø 8 mm (0.31 in.)
  • Further scope of delivery DDF 40 MaxiMAX:
  • 1 package wooden dowels ø 6×30 mm (approx. 350 pcs.)
  • 1 package wooden dowels ø 8×30 mm (approx. 200 pcs.)
  • 1 additional support plate ZA
  • 1 additional stop set ZAG
  • 1 hose connector
  • 1 lateral stop set SA 320
  • 1 trim stop LA
  • 1 position indicator PAZ
  • 1 Allen key with handle
  • 1 bottle of glue
  • 1 dowel nozzle ø 8 mm (0.31 in.)
  • 2 anti-slip mats
  • 1 carrying case
  • 1 operating manual
  • 1 folder “Safety instructions”

Safety devices

Danger
These devices are required for the machine’s safe operation and may not be removed or rendered inoperative.

The machine is equipped with the following safety devices:

  • Switch interlock during tool change
  • Protection against contact with the drill bits
  • Large bearing surfaces of the base plate and tilting stop
  • Handles and handle recesses

Use according to intended purpose

The duo-dowel system is exclusively designed for drilling wooden materials using the drill bits approved by us with a diameter between 3 mm and 12.2 mm (0.13 and 4.80 in.).

It is used to make connections between individual parts in the workbench area. The device is not approved for drilling holes in existing walls.

Grounded machines must be connected to a properly mounted socket outlet which is grounded in accordance with all regulations and laws. Never remove the ground contact or modify the plug in any other way. Have the socket outlet checked by a qualified electrician if you have any doubts about the proper grounding of the socket outlet.

Danger
Do not interrupt the grounding by using an adapter plug.

Make sure that the connecting cable does not touch any rotating parts.

Any other use than described above is not permissible. The manufacturer cannot be held liable for any damage arising from such other use.

In order to use the machine as intended, comply with the operating, maintenance, and repair instructions specified by Mafell.

Residual risks

Danger
Even if used in accordance with its intended purpose and despite conforming with the safety instructions, residual risks caused by the intended use will always remain.

  • Touching the drill bits inside and outside the base plate.
  • Touching the drill bits on the workpiece rear when drilling.
  • Breakage of the drill bits and risk of the drill bits or parts of them being hurled away.
  • Ejection of chips.
  • Touching live parts with the housing open and the mains plug not removed.
  • Hearing can be impaired when working for long periods without ear protectors.
  • Emission of harmful wood dusts during longer operation without extraction.

Safety instructions

Danger
Always observe the following safety instructions and the safetyregulations applicable in the respective country of use!

General instructions:

  • Children and adolescents must not operate this machine. This rule does not apply to young persons receiving training and being supervised by an expert.
  • Never work without the protection devices prescribed for the respective operating sequence and do not make any changes to the machine that could impair safety.
  • When operating the machine outdoors, use of an earth-leakage circuit-breaker is recommended.
  • Damaged cables or plugs must be immediately replaced.
  • Avoid sharp bends in the cable. Especially when transporting and storing the machine, do not wind the cable around the machine.

Do not use:

  • Damaged drill bits and drill bits that have changed their form.
  • Blunt drill bits as they impose an excessive load on the motor.
  • Drill bits that are not suitable for the drill’s idling speed.

Machine-specific safety instructions:

  • After drilling, the motor unit must automatically move back to its home position. The drill bits are then completely in the protective cover. If this does not happen, the machine must be switched off immediately and repaired before further use.

Instructions on the use of personal protective equipment:

  • Always wear ear protectors during work.
  • Always wear protective goggles during work.
  • Always where a dust mark during work.

Instructions on operation:

  •  Do not reach with your hands into the drilling area and do not touch the drill bits. Position your second hand in the handle recesses provided for this purpose at 7 or 24 (Fig. 1 or 4).

  • Do not reach under the workpiece.

  • Never support the workpiece in your hand or over your leg. Secure the workpiece against a sturdy support.
    Only hold the device by its isolated handle surfaces when carrying out work during which the cutting tool could hit hidden power cables or its own connection cable.

  • Before starting to drill, tighten the depth and angle adjustments.

  • xamine the workpiece for foreign objects. Never attempt to drill into nails or other metal objects.

Instructions on service and maintenance:

  • Regularly cleaning the machine, especially the adjusting devices and guides, constitutes an important safety factor.
  • Only original MAFELL spare parts and accessories may be used. Otherwise, the manufacturer will not accept any warranty claims and cannot be held liable.

Setting / Adjustment

Mains connection

Prior to commissioning make sure that the mains voltage complies with the operating voltage stated on the machine’s rating plate.

Chip extraction

Connect the machine to a suitable external dust extractor during all work generating a considerable amount of dust. The air velocity must be at least 20 m/s (65.6 ft / sec.).

The outside diameter of hose connector 16 (Fig. 3) is 27 mm (1.06 in.)

Selection of tools

Please use the dowel drill bits listed in chapter 8 Optional accessories.

These carbide-tipped drill bits were developed specially for the DDF 40 and are suitable for all types of wood.

Tool change

Danger
Pull the power plug during all service work.

The basic requirement for correct drilling are well ground drill bits.

Proceed as follows for the tool change:

  • Set the turning knob 11 (Fig. 2) to the tool change symbol. The ON switch 1 (Fig. 1) is now blocked!
  • Push the motor unit forward until it engages.
  • Turn around the machine (Fig. 3).
  • Now turn the tool holding fixture 18 (Fig. 3) visible in the slotted hole using the Allen key so that the screws 19 are visible in the openings of the base plate.
  • Unfasten the screws with the Allen key.
  • Pull off the drill bits 20 to the front.
  • Push the new drill bits into the tool holding fixture up to the limit stop.
  • Check the drill bits’ seat. Retighten the screws 19.
  • Set the turning knob to drilling depth “1” or “2”. Attention, the machine automatically returns to its home position!

Parduct Overawe
Parduct Overawe
Parduct Overawe

**** After the tool change, you have to check the zero setting for the drill depth and readjust it where necessary.

  • Set the depth stop “1” 14 ( Fig. 2) to the scale depth 0.
  • Set the turning knob 11 to drilling depth “1”.
  • Push the motor unit 17 forward and check whether the drill tip or cutting edge (depending on your requirements!) is level with the contact surface 21 (Fig. 3).
  • If necessary, turn the screw 13 at stop 12 (Fig. 2) with the enclosed Allen key until the zero position is adjusted. When delivered, this is set to the drill blade!

Tilt adjustment

The tilting stop 7 (Fig. 1) can be continuously adjusted in the range from 0° to 90°. Three latching positions facilitate a fast setting of the angles 22.5°, 45° and 67.5°.

  • Unfasten the wing nut 4 (Fig. 1)
  • Tilt the tilting stop to the desired angle.
  • Retighten the wing nut.

Drill depth adjustment

The drilling depth can be adjusted between 0 – 40 mm in 1 mm steps.

  • First press button “2” 15 (Fig. 2) and push the depth stop “2” to the large depth measurement (2 to 40 mm).
  • Then press button “1” 14 (Fig. 2) and push the depth stop “1” to the small depth measurement (0 to 38 mm).
  • Set the turning knob 11 (Fig. 2) to drilling depth “1” or “2” as required.

Height adjustment of tilting stop

**** The distance can be continuously adjusted between 6.5 and 60 mm to the drill axis.

  • Unfasten the wing nut 2 (Fig. 1)
  • Set the tilting stop 7 (Fig. 1) to the desired scale value using the setting wheel 5 (Fig. 1).
  • Retighten the wing nut.

With the rotating revolver limit stop 3 you can select five firmly preset distances:

6.5 mm, 8 mm, 9.5 mm, 11 mm, 12.5 mm, as well as a freely adjustable distance.

For this purpose, turn the threaded pin in the revolver limit stop with an Allen key AF 2.5.

Operation

Initial operation
Personnel entrusted to work with the machine must be made aware of the operating instructions, calling particular attention to the chapter “Safety instructions”.

Switching on and off

  • Switching on : Push the ON switch 1 (Fig. 1) downwards until it engages.
  • Switching off : Press ON switch 1. The ON switch jumps into off position.

**** The ON switch is blocked in the tool change position! Check the setting of the turning knob 11 (Fig. 2)!

Drilling

  • Clamp the workpiece or prevent it from moving.

  • Switch on the machine (see chapter 5.2).

  • If necessary, place the machine onto the support surface of base plate 6 or tilting stop 7 (Fig. 1).

  • Position the machine against the outside edge of the workpiece using one of the methods described below.

  • Position your second hand in the handle recesses provided for this purpose at 7 or 24 (Fig. 1 or 4).
    Operation

  • Slide the motor unit over the handle hump 9 (Fig. 1) or the handle bulge 10 at the end of the motor up to the stop.

  • The motor unit automatically returns to its home position. Switch off the machine.

Drilling with stop pin (Fig. 16)

Drilling with stop

The base plate 6 (Fig. 1) is equipped with two springloaded stop pins 8. They are used to place the drill holes at a fixed distance of 15.5 mm to the outer edge of the workpiece. The machine stop can be positioned at the left or right.

Drilling with positioning on side faces (Fig. 17)

Drilling with positioning

The base plate 6 (Fig. 1) is equipped with two contact surfaces 6a (Fig. 1). They are used to place the drill holes at a fixed distance of 49 mm to the contact surface. The machine stop can be positioned at the left or right.

Drilling according to tracing via base plate

The base plate 6 (Fig. 1) has reference markings on the top, front and bottom side for the machine centre, drill bit centre and inner sides of the stop pins or the additional stops “N”. The outer reference markings on the front and top side only correspond to the leading edge of the additional stop “M” (see chapter 5.9). The reference markings on the left and right side faces 6a (Fig. 1) each correspond to the centre of the drill.
Drilling according

Drilling according to tracing via tilting stop

The tilting stop 7 (Fig. 1) has three reference markings. The middle reference marking corresponds to the machine centre. The reference markings on the left and right each correspond to the centre of the drill.

Vertical drilling with fixed distance 9.5 mm

Attach the additional support ZA 22 to the underside of the base plate using the knurled screws 23 as shown in Fig. 5 (the handle support 24 points downwards!). The additional support ZA, which protrudes 10 mm above the drilling plane, can now be used as a stop edge with 9.5 mm edge distance. The tilting stop 7 which is set to 0° ensures a secure support.

Drilling with additional stop set ZAG (Fig. 18- 25)

Drilling with additional
Drilling with additional
Drilling with additional
Drilling with additional
Drilling with additional
Drilling with additional

The additional stops 25 (Fig. 6) from stop set ZAG can be inserted into contact surface 21 (Fig. 6), the underside of base plate 6 (Fig. 6) and the contact surface of tilting stop 7 (Fig. 6) with different edge distances.
Drilling according

**** For different edge distances, see sketch images on page 6.

Drilling with position indicator PAZ according to tracing (drilling of longitudinal parts, e.g. drilling of frames)

**** The distance can be infinitely adjusted between 19 and 60 mm to the drill axis.

  • Unfasten the wing nut 2 (Fig. 1)

  • Use the setting wheel 5 (Fig. 1) to move the tilting stop 7 (Fig. 1) to the very top.

  • Fit the position indicator PAZ 26 ( Fig. 7 ) onto the columns of the height guide.
    Drilling according

  • Slide the position indicator in the direction of tilting stop 7 until it engages at the tilting stop.

  • Set the tilting stop 7 (Fig. 1) to the desired scale value using the setting wheel 5 ( Fig. 1 ).

  • Retighten the wing nut 2.

  • The distance between the position indicator PAZ and the centre of the drill hole corresponds to the set distance of the contact surface of the tilting stop 7 (Fig. 8 ).
    Drilling according

  • Use the additional stop “N” on the tilting stop for right-angled alignment to the longitudinal edge of the workpiece.

Drilling with lateral stop set SA 320

Lateral stop for large edge distances and repositioning (flush body machining).

**** The edge distance can be adjusted between 105 and 320 mm in 5 mm increments to the drill centre.

The side stop 27 (Fig. 9 + 10) can be inserted alternately in 2 positions on the base plate 6 (Fig. 1). Position 1: Mount the side stop 27 as shown in Fig. 9. The spring-loaded stop pin 30 in tab 28 is in the same direction as the stop pins in the base plate.
Drilling according
Drilling according

Position 2 : Mount the side stop 27 as shown in Fig. 10. The spring- loaded stop pin 30 in tab 28 protrudes downwards beyond the contact surface of the base plate.

After inserting the side stop, check that the locking lever 31 ( Fig. 9 ) is fully engaged.

By pressing the push-button 29 ( Fig. 9 ) the tab 28 can be adjusted to the desired edge or repositioning distance.

Lateral stop for edge distance with infinitely variable fine adjustment (offset body machining)

**** Only useful if tab 32 is set to a minimum distance of 105 mm!

  • Actuate push-button 29 ( Fig. 9 ) and remove tab
    28 completely from the stop rail.
    Slide the tab 32 ( Fig. 11 ) with mounted roller edge guide 34 onto the stop rail and set the smallest distance 105 mm.

  • Mounting the roller edge guide 34: Observe the symbols on the roller edge guide in this regard. Position the roller edge guide and push it backwards up to the stop. Close lever 37 ( Fig. 11 ).
    Mounting the roller

  • Loosen the knurled nut 36 with a few turns.

  • Set the knurled screw 35 to the desired distance. Adjustment travel +/- 5 mm referred to the stop pin 8 ( Fig. 11 ). 0.1 mm travel per scale line.

  • Retighten the wing nut 36.

Lateral stop for producing rows of holes

**** Only a setting to 320 mm makes sense! (10x drilling distance 32 mm) In this way, you avoid excessive tolerance deviations during continuous repositioning!

  • Use tab 32 ( Fig. 12 ) without the roller edge guide 34 ( Fig. 11 ).

  • Dismantling the roller edge guide 34: Observe the symbols on the roller edge guide in this regard. Open lever 37 (Fig. 11). Push roller edge guide forward and remove.

  • Mount the additional stop “K” 38 ( Fig. 12) from the set ZAG on the tab 32.
    Mount the additional

  • Actuate push-button 33 ( Fig. 12 ) and set the tab to 320 mm.

  • Attach the additional stop “K” 38 in an existing drill hole and place the other drill holes in the row of holes.

  • Then remove the side stop from the machine. Mount the additional stop “K” 38 directly on the base plate. Drill the missing holes between the previously inserted drill holes.

Drilling with trim stop LA (Fig. 24 + 25)

Danger
Only 1 drill bit with max. ø 8.2 mm may be used! Remove unused threaded pin from the machine!

**** The drilling distance to the stop pin is 7.5 mm! When adjusting the drilling depth, make sure that it is reduced by 15 mm by means of the trim stop LA!

For drilling narrow strips (approx. 14 – 48 mm) and small drilling distances, use the trim stop LA 39 ( Fig. 13 ).
Drilling with trim

  • Mount only 1 piece drill bit with max. ø 8.2 mm. ( see chapter 4.4 )
  • Press the locking levers 42 ( Fig. 13) together at the trim stop and insert the trim stop 39 (Fig. 13) on the front side of the base plate. The trim stop can only be fitted in the correct position to the mounted drill bit!
  • Use the additional stop “P” ( Fig. 25 ) for rightangled alignment when applying it to the stop pin 40 (Fig. 13), or to the additional stop “O” ( Fig. 24 ) from the set ZAG on the stop pin 41.
    Drilling with trim
    Drilling with trim

Insert these into the corresponding mountings of the tilting stop.

Drilling with dowel drilling template

For working with the dowel drilling template 43 ( Fig.14 + 15 ) see operating instructions of the dowel  drilling template. Order no. see chapter 8 Special accessories.

For horizontal drilling, position the toothing of the tilting stop 7 against the dowel drilling template as shown in Fig. 14.

For vertical drilling, tighten the additional support ZA 22 ( Fig. 4 ) to the underside of the base plate with the knurled screws 23. Then apply the toothing of the additional support to the dowel drilling template as shown in Fig. 15.

Service and maintenance

Danger
Pull the power plug during all service work.

MAFELL machines are designed to be low in maintenance.

The ball bearings used are greased for life. When the machine has been in operation for a longer period of time, we recommend to hand the machine in at an authorised MAFELL customer service shop for inspection.

Only use our special grease, order No. 049040 (1 kg tin) for all greasing points.

Storage
If the machine is not used for a longer period of time, it has to be carefully cleaned. Spray bright metal parts with a rust inhibitor.

Troubleshooting

Danger
Determining the causes for existing defects and eliminating these always requires increased attention and caution. Pull the mains plug beforehand!

Some of the most frequent defects and their causes are listed in the following chart. In case of other defects, contact your dealer or the MAFELL customer service.

Defect Cause Elimination
Machine cannot be switched on Turning knob 11 (Fig. 2) is set to “Tool
change”. Set the turning knob to drilling depth “1” or “2”.
No mains voltage Check power supply
Mains fuse defective Replace fuse
Carbon brushes worn Take the machine to a MAFELL customer service shop
Machine stops while drilling is in process Mains failure Check mains back-up

fuses
Burn marks on the drill holes| Feed speed too low| Increase feed speed
| Blunt drill bit| Regrind drill bit or replace
Chip ejection blocked| Wood is too damp|
| Extended drilling without extraction| Connect machine to an external extraction, e.g. portable dustextractor

Optional accessories

  • Dowel drill bit – DB HSS Ø 3 mm (0.118 in.) Order No. 090 083
  • Dowel drill bit – DB HW Ø 5 mm (0.196 in.) Order No. 090 089
  • Dowel drill bit – DB HW Ø 6 mm (0.236 in.) Order No. 090 096
  • Dowel drill bit – DB HW Ø 6.1 mm (0.240 in.) Order No. 090 120
  • Dowel drill bit – DB HW Ø 8 mm (0.314 in.) Order No. 090 097
  • Dowel drill bit – DB HW Ø 8.1 mm (0.318 in.) Order No. 090 122
  • Dowel drill bit – DB HW Ø 8.2 mm (0.322 in.) Order No. 090 123
  • Dowel drill bit – DB HW Ø 10 mm (0.393 in.) Order No. 090 098
  • Dowel drill bit – DB HW Ø 10.1 mm (0.397 in.) Order No. 090 124
  • Dowel drill bit – DB HW Ø 10.2 mm (0,401 in.) Order No. 090 125
  • Dowel drill bit – DB HW Ø 12 mm (0,472 in.) Order No. 090 099
  • Dowel drill bit – DB HW Ø 12.2 mm (0,480 in.) Order No. 090 127
  • Lateral stop set SA 320 Order No. 206 490
  • Trim stop LA Order No. 206 491
  • Dowel drilling template clamping device, 800 mm (31.496 in.) Order No. 203 980
  • Dowel drilling template extension 1600 cpl., length 1600 mm (62.992 in.) Order No. 203 434
  • Screw clamp with stop (for working with dowel drilling template extension) Order No. 093 280
  • Screw clamp (for rail fixing on the workpiece) Order No. 093 281
  • Wood dowel see specialised trade, DIY store etc.

Exploded drawing and spare parts list

The corresponding information in respect of spare parts can be found on our homepage: www.mafell.com

Product Overawe

Product Overawe
Product Overawe

WARNUNG
Lesen Sie alle Sicherheitshinweise und Anweisungen. Versäumnisse bei der Einhaltung der Sicherheitshinweise und Anweisungen

EC Declaration of Conformity
We herewith confirm that the machine DDF 40 complies with the EU directives quoted. The standards listed were used for design and construction.

Empowered person for the configuration of the technical documents: Mafell AG


2006/42/EG

2014/30/EU
2011/65/EU

EN 60745, EN 55014-1, EN 55014-2, EN 61000-3, EN 12100, EN 1037

DDF 40
Art.-Nr.: 918601, 918602, 918620, 918621, 918622, 918625

Mafell AG
D – 78727 Oberndorf, den 02.05.2018

Dipl.-Ing,41atthias Krauss Vorstandsvorsitzender / CEO

i. V. Dr. Helmut Lauckner Leitung Entwicklung and Konstruktion

References

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