85 / 151Issued: 16.06.2010 Version: MA KL 1500-3 T S 141215 V1 en
11. Repair
8. Adjust the rollers (>>> 10.2 "Adjusting the rollers" page 71).
To do so, turn in a counterclockwise direction the eccentric on the square
of all six eccentric rollers (E) using a torque wrench. This positions the roll-
ers on the track. Tighten the hexagon nut with a torque wrench. Apply
counterforce using an open-end wrench on the square of the roller.
For tightening torques, see the following table.
9. Install the drive assembly as described in Section (>>> 11.1.2 "Installing
the drive assembly" page 74).
10. Carry out mastering of the linear unit.
11.4 Exchanging the upper/lower rollers without using the auxiliary device
Description The carriage is guided by six centric and six eccentric rollers on two tracks.
The centric rollers are indicated by a “Z” and eccentric ones are indicated by
an “E”. The centric side rollers are always located on the fixed bearing side.
The fixed bearing side is the side on which the drive engages with the rack.
Roller Eccentric Hexagon nut
Ø72 22 Nm 150 Nm
Ø110 55 Nm 380 Nm
Fig. 11-11: Upper rollers, lower rollers
1 Center of rotation of centric roller (Z)
2Track
3 Center of rotation of eccentric roller (E), engaged
4 Center of rotation of eccentric roller (E), disengaged
5 Center of rotation of eccentric
Further information about mastering is contained in the operating and pro-
gramming instructions for the KUKA System Software.
The type of wheel bearing is indicated on the end face of the square of each
roller.
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