Operating instructions BRB
9 Clamping wedge and mandrel assembly BRB 4
orbitalum tools
gmbh
(08.10)
MT_BRB_BA_04_790086762_00.doc
55
9.5.2
Fitting the mandrel:
BRB 4 "NC" with mandrel Ø 19.05 and Ø 34.50
1. The tool mounting plate (1) for mandrel dia. 34.5 must already be fitted;
the tool mounting plate for mandrel dia. 19.05 can only be fitted at the end.
2. Push mandrel (2) into housing (3). Watch out for the groove position!
3. Use feed ratchet (4) to move mandrel (2) in the direction of the arrow until
least 60 mm of the thread (5) is visible.
4. Rotate the clamping nut (6) onto the mandrel thread (2) as far as the stop.
5. Push clamping wedge attachment (7) into mandrel (2) and screw it in with
the mounting aid (8) (Code 790 085 490) until the mounting aid is flush up
against the mandrel.
Warning, left-hand thread!
The clamping wedge attachment (7) must now be exactly 12 mm
(0.472 inch) from the end of the mandrel. If the mandrel dia. is 19.05 mm,
this dimension is 3 mm (0.118 inch).
6. The 3 grooves (9) on the clamping wedge attachment (7) must coincide
with the 3 openings (10) on the mandrel.
7. Fit the required clamping wedges (see chap. 8.3.1, p. 33 and chap. 9.3.3,
p. 50).
Important
9
8
4
10
3
7
1
6
5
2
