MTS Series 215 Rotary Actuator - Manual (Page 35)

Component Alignment on an MTS Base Plate
Series 215 Rotary Actuator Product Manual Installation 35
Note In each of the following procedures the base plate or T-slot table must be
flat to within 0.015 mm/m (0.002 in./ft).
Component Alignment on an MTS Base Plate
Rotary actuator testing systems equipped with an MTS base plate and reaction
bracket combination are pre-aligned. The following procedure describes the
alignment process used when you wish to increase or decrease the distance
between the actuator and the torque cell.
Note If the actuator has been moved or the torque cell has been separated
from the reaction bracket, the “Component Centerline Alignment
Procedure” must be completed before attempting this procedure.
1. To move the reaction bracket and torque cell assembly, loosen the lateral
clamping bolts located on the left side of the reaction bracket.
2. Loosen the vertical clamping bolts on the reaction bracket.
3. Slide the reaction bracket and torque cell assembly to the desired position.
4. Tighten the lateral clamping bolts on the left side of the reaction bracket to
assure alignment.
5. To secure the reaction bracket and torque cell assembly, lubricate and
tighten each of the lateral clamping bolts to 3.9 N·m (35 lbf·in.).
6. Lubricate and tighten each of the vertical clamping bolts to 84.7 N·m (750
lbf·in.). Alignment is complete.
Component Centerline Alignment
If the test system does not utilize an MTS base plate or T-slot table, or the torque
cell has been separated from the reaction bracket, or the actuator has been moved,
then this procedure must be performed in order to ensure proper alignment of the
components of the test system. In each of the steps, it is assumed that the bolts
used to install the actuator and reaction bracket to the base plate or T-slot table
are hand tight unless otherwise specified.
The purpose of this procedure is to ensure that the actuator and torque cell share
the same centerline. The procedure is composed of three groups of steps covering
the following operations:
• Adjusting actuator and torque cell centerline height,
• Adjusting actuator and torque cell concentricity, and
• Adjusting for actuator and torque cell centerline angularity.
Adjusting Actuator and Torque Cell Centerline Height
This procedure describes the steps necessary to adjust the centerline height of the
torque cell with respect to the actuator. The procedure requires a dial indicator,
magnetic V-block, extension rod, and clamps.
1. Attach a dial indicator to the actuator rotor shaft using a magnetic V-block
as the base.