INSTALLATION
MOTO
MAN
4-15
MH–Series Positioner Manual with MotoMount
Type II Leveling Procedures
The Type II tailstock must be leveled in two directions, axially and cross-axially.
Since it only takes three points to define a plane, use only three of the four leveling
bolts to level the system. It is important to consistently use the same three leveling
bolts through out each process. The fourth leveling bolt will be used as an anchor
only.
Before proceeding, make sure that the tailstock is in the proper place. Make sure a
leveling bolt, lock-nut, and leveling shim is installed in each column base hole.
Figure 4-17 Leveling the Tailstock – Type II
To level the tailstock assembly axially, proceed as follows:
1. Place a level on top of the tailstock column in the axial direction.
2. Use the leveling bolts A, B, and C to adjust the axial level. Adjust bolts A + B
equally.
To level the tailstock assembly cross-axially, proceed as follows:
1. Place a level on top of the tailstock in the cross-axial direction.
2. Use the same three leveling bolts used above and adjust them until the level
is balanced, adjusting B + C equally.
3. Repeat the axial and cross-axial leveling steps until level readings are
achieved both directions.
4. Drive the fourth leveling bolt down to the leveling shim.
5. Check level axially and cross-axially again. When level, tighten the
anchoring system (customer supplied) to the specified torque.
6. Tighten the four lock-nuts to the column base.
Allowable Misalignment
The flexibility of MotoMount HD allows for a misalignment between the tailstock
and the tooling fixture without affecting performance (see Figure 4-18). A
misalignment of .5 degrees is allowed. If the tailstock is out of alignment more
than .5 degrees, adjust the tailstock using the tailstock leveling bolts.
B
C
AXIAL
CROSS-AXIAL
A
LEVELING SHIM
ANCHOR (CUSTOMER
SUPPLIED)
LEVELING BOLT
LOCK-NUT
HEADSTOCK
RISER
COLUMN BASE