MTS Landmark Floor Standing - Manual (Page 63)

Position the Crosshead Hydraulically
1. Important:
This step pressurizes the lift actuators. The crosshead might have shifted position while hydraulic
pressure was turned off.
Briefly turn the crosshead positioning control to the lift crosshead position to apply a slight upward pressure
to the crosshead. Then return the lift control to the stop position.
2. Use the crosshead lock/unlock control to unlock the crosshead.
Wait 5 seconds for the pressure in the crosshead locks to drop to zero.
3. Use the crosshead positioning control to move the crosshead to a point where you can install the specimen
(or specimen fixture) into the upper grip or fixture without obstruction.
Return the control to its center position before proceeding.
4. Use the crosshead lock/unlock control to clamp the crosshead in its current position.
Wait 5 seconds for the locks to fully clamp the columns.
Position the Crosshead Manually
This procedure describes how to position a crosshead for a load unit with no hydraulic crosshead lifts or locks.
Warning:
The crosshead is very heavy.
A dropping crosshead can crush hands, damage grips, and smash specimens.
Observe the following precautions to reduce the possibility of unexpected crosshead movement:
Ensure that the crosshead is locked.
The overhead crane and lifting chains must be able to support the weight of the crosshead.
Center the crane directly over the load unit. Remove any slack in the lifting chains before unlocking
the crosshead.
Remove any slack in the lifting chains before unlocking the crosshead.
Completely loosen all crosshead locking bolts before attempting to move the crosshead.
Keep the columns clean and dry. The crosshead cannot be securely clamped to greasy or damp
columns.
MTS Landmark™ Floor Standing Load Units Product Information 63
Operation