1. D'ANDREA TOOLS:
USE AND MAINTENANCE

2. Material only for internal use:
absolutely NO copies in the market.
Photos, drawings, tech. info, logos etc.
under D’Andrea property.
UM/A/07

3. MAKE SURE THE RADIAL PIN DOES
MHD'
MODULHARD'ANDREA
USE AND MAINTENANCE MHD’ SYSTEM
For perfect MHD’ assembly and
accuracy, clean the cylindrical-conical
parts in order to guarantee rigidity and
concentricity. This device will also
prevent damage to contact surfaces.
Before assembling the chosen element,
MAKE SURE THE RADIAL PIN DOES
NOT PROJECT FROM THE
CYLINDRICAL PART!
If elements are to be clamped for a
long period of time, we recommends
to lubrificate the cylindrical-conical
faces. It is also necessary to
lubrificate the expanding pin with
anti-scuff grease (i.e. copper slip). 1

4. MHD' MODULHARD'ANDREA WARNING!
GENERAL INFORMATION FOR USE FINE BORING HEADS
Don’t touch
all red screw!
WARNING!
The arrow indicates SLIDE MOVEMENT DIRECTION
Rotate the Vernier scale counter-clockwise for
positive slide adjustment (+).
Remove backlash each time the Vernier dial’s
rotation is reversed.
The insert holders position is normally set on a
tool presetting bench. The graduate scale on
insert holders simplifies and quickens the
identification of the desired working diameter.
Adjustment screws simply the insert holders
setting. 2

5. TRM TESTAROSSA LINE HOW TO ADJUST TRM HEADS
To avoid mistakes, the insert symbol is marked on slide for correct positioning.
Before micrometric adjustment loosen the slide locking screw.
Perform micrometric adjustment and tighten the slide lock screw.
Use the supplied screw driver hexagonal wrench without over-tightening.
The internal kinematics is preset. For this reason red colored screws should
never be touched in order not compromise the correct operation of TRM or BF.
Keep the slide runners clean, lubrificating weekly with ISO UNI G220 oil.
Models TRM are equipped with a lubrificator on the slide. 3

6. TRM TESTAROSSA LINE HOW TO BALANCE TRM WITH BLC RING
For all high speed machining up to RPM G6,3 where the unbalance must
be reduced to a minimum, D’Andrea offers two TRM balanceable heads
(TRM 32 HSB – TRM 50 HSB, see next pages) and BLC adaptor balancing
rings for existing standard tools.
Remove the plastic
guard ring. Insert the
BLC ring and lock the
screws.
Fine adjust TRM head
according standard
procedure.
Balance the tool with
balancing machine. 4

7. TRM TESTAROSSA LINE HOW TO BALANCE TRM-HSB HEADS
WITHOUT BALANCING MACHINE
Adjust TRM-HSB head
according standard
procedure.
Positioning the two counterweights
into the graduated groove according
the position for W1 and W2 (see next
Pages) and lock the screws. 1) 2)
The attached tables (see next pages) indicate where the two
weights must be positioned according to:
TRM-HS type
Tool and arbor
Diameter to be machined
The residual unbalance is less than 10 gr. X mm. 5

8. TRM-HSB TESTAROSSA LINE HOW TO BALANCE TRM32-HSB HEADS
WITHOUT BALANCING MACHINE 6

9. TRM-HSB TESTAROSSA LINE HOW TO BALANCE TRM50-HSB HEADS
WITHOUT BALANCING MACHINE 7

10. TRM
TESTAROSSA LINE
FINE ADJUSTMENT
0,002
0,1 8

11. TRC TESTAROSSA LINE HOW TO ADJUST TRC and TRC-HS HEADS
Before micrometric adjustment loosen the slide locking screw.
Perform micrometric adjustment and tighten the slide lock screw.
Use the supplied screw driver hexagonal wrench without over-tightening.
The internal kinematics is preset. For this reason red colored screws should
never be touched in order not compromise the correct operation of the head.
Keep the slide runners clean, lubrificating weekly with ISO UNI G220 oil.
Models TRC are equipped with a lubrificator on the slide.
Referring standard TRC, solution -HS is pre-balanced: you can use ~+20%
higher parameters on nominal diameter. 9

12. 25,65 mm MICROMETRIC VERNIER SCALE Mr. CALIPER
DO YOU REMEMBER
A VERY FAMOUS OLD
MEASUREMENT
INSTRUMENT?
25,65 mm
Mr. CALIPER
Well: TRC and TRD Vernier scale, using the same system as caliper:
THE LINES COLLIMATION 25,Y... -> 25,YZ.. -> 25,YZK. -> 25,YZKJ 10

13. TRC TESTAROSSA LINE FINE ADJUSTMENT AND VERNIER SCALE 0,1 mm
1 Turn: 0,5 mm
0,01
0,008
0,006
0,004
0,002 11

14. TRD TESTAROSSA LINE HOW TO ADJUST TRD HEADS
0,2 mm
Roughing
Finishing
Roughing Ø
Finishing Ø
1) Before adjustment loosen
the slide locking screw.
2) Tighten the roughing cartrige lock screws (2).
3) With presetting machine, adjust roughing
cartrige trough the lateral screw. 12

15. TRD TESTAROSSA LINE HOW TO ADJUST TRD HEADS 4) Tighten the finishing
cartrige lock screws (2).
5) With presetting machine,
adjust finishing cartrige
trough the lateral screw.
6) Then, you can making micrometric
adjustment and move a complete
slide for fine tollerance.
7) As last operation, tighten the
slide lock screw 13

16. TRD TESTAROSSA LINE FINE ADJUSTMENT AND VERNIER SCALE 0,5 0,1 0,01
0,002
0,004
0,006
0,008
0,1
0,5 14

17. MONOFORCE HOW TO CLOSE MONOFORCE CHUCK RING 1) 2)
1) Tighten by hand, please don’t use hammer!
2) For finishing operations and higher run-out, after chuck ring contact with the face of chuck body, return chuck ring just a little (around 1°-2°) 15

18. MONOFORCE HOW TO ASSEMBLY THE DIFFERENT COMPONENTS
Toolholder
Tool
GH ring
VCR
Bushes
Key
HOW TO ASSEMBLY THE DIFFERENT COMPONENTS
FOR MONOFORCE COOLANT TROUGH… 16

19. MONOFORCE 1) 2) 3) Remove or close the internal exagonal screw.
Put inside the VCR and fix with exagonal key. 3)
Put inside the GH plastic ring and insert the bush
into the toolhoder (WARNING the teeth!). 17

20. MONOFORCE Ready! 4) 5) 6) Insert GH metal ring into the tool.
Insert and push the system. Close the toolholder and… 6)
… close GH metal ring with exagonal key.
(WARNING: NO high force!).
Ready!
The system is READY! 18

21. D'ANDREA INSERT GRADE 19

22. SUGGESTED CUTTING CONDITIONS FOR BORING OPERATIONS WITH TESTAROSSA AND
MICROMETRIC BORING BARS
The following table indicates the recommended cutting parameters as follow:
Insert quality and cutting speed according to the material to be machined; feed
Rate based on the insert radius. The maximum permissible length recommended
For the boring head is L/d=6,3. Higher values must be valutated case by case.
Generally cutting depth is between 0,1-0,3 mm per side. 20

23. INDEX Page 1 Use and maintenance MHD’ System
Page 2 General informations for use boring heads
Page 3 How to adjust TRM heads
Page 4 How to balance TRM with BLC ring
Page 5 How to balance TRM-HSB without balancing machine
Page 6 Positioning wheights for TRM32-HSB
Page 7 Positioning wheights for TRM50-HSB
Page 8 TRM micrometric scale
Page How to adjust TRC and TRC-HS heads
Page How to adjust TRD heads
Page 15 How to close MONOFORCE chuck ring
Page How to assembly components MONOFORCE coolant
Page 19 D’Andrea insert grade
Page 20 Suggested cutting conditions micrometric boring bars

24. D’Andrea S.p.A.
Via Garbagnate, 71
20020 Lainate (Milano)
Phone:
Fax –