MTS Series 647 Hydraulic Wedge Grips - Manual (Page 42)

Approx.
full turn
(360º)
Shim
Number
Thickness
Qty
Approx.
1/16 turn
(22.5º)
Shim
Number
Thickness
Qty
Approx.
1/8 turn
(45º)
Shim
Number
Thickness
Qty
Approx.
1/4 turn
(90º)
Shim
Number
Thickness
Qty
Approx.
1/2 turn
(180º)
Shim
Number
Thickness
Qty
Ref.
travel of
full th'd Actuator
(OD) Thread
Size Rev Part
Number
(Kit
number)
443665-27 443665-27 443665-27 443665-26 443665-26 .079" 318 act
(3.62) M36 x 2
mm A 521050-08
.005 .005 .005 .02 .02
1 1 2 1 2
443665-29 443665-29 443665-15 443665-28 443665-28 .083" 318 act
(4.62) 2"-12 A 521050-09
.005 .005 .01 .02 .02
2 1 1 1 2
443665-29 443665-29 443665-15 443665-28 443665-28 .079" 318 act
(4.62) M52 x 2
mm A 521050-10
.005 .005 .01 .02 .02
1 1 1 1 2
Install Axial Grip
The following procedure assumes that the actuator is mounted in the base of the load unit and the force
transducer is mounted to the crosshead. If you have a load unit with the actuator mounted to the crosshead,
make the appropriate changes to the following procedure.
1.
Warning:
Grip installation is dangerous because it occurs within the crush zone of the force train while
full hydraulic pressure is applied and actuator movement is required during the installation.
Unexpected actuator movement can cause personal injury and damage to the equipment.
Take every precaution to avoid unexpected actuator movement while installing the grips.
Set up the load unit.
a) Turn on the system hydraulic pressure.
b) Adjust the actuator and crosshead position as necessary to allow adequate room to install the grips.
c) Turn the hydraulic pressure off.
Ensure that system hydraulic pressure has been reduced to zero before proceeding. To do this, turn
off the hydraulic power unit and exercise the actuator until it stops moving.
d) Lubricate all of the surfaces that will contact each other (screw threads, spacers, and so forth)
42 Series 647 Hydraulic Wedge Grips Reference Manual
Installation