MTS 318 Load Unit User Manual
Page 84
318 Load Unit
84
Routine Maintenance Overview Checklist
Maintenance
B. Turn on high hydraulic pressure.
C. If there is a specimen in the load unit, remove it.
D. Move the crosshead to a comfortable working height.
The crosshead can slowly drift down the columns if the locks are turned off
and the hydraulic pressure is turned off.
The crosshead can damage any test fixtures, grips, and specimen in its
path.
Unlock the crosshead only to reposition it. Always lock the crosshead after you
have repositioned it, and never leave the crosshead unlocked.
3. Remove the covers on the ends of the crosshead. The crosshead covers must
be removed to adjust the hydraulic locks. Four 1/4-20 screws (two top, two
bottom) on each cover need 5/21 hex (not included). Hand-tighten when
reinstalling the covers.
CAUTION
318.10
136 N·m (100 lbf·ft)
318.25
271 N·m (200 lbf·ft)
318.50
271 N·m (200 lbf·ft)
1
3
2
4
1
3
2
4
1
2
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