Instron 1000KPX-J3D, Operating Instructions Manual

Page: 45 / 70

45
Mount fixtures
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x. Adjust the crosshead support collars on the columns so that they are in contact with the
bottom of the crosshead (use hex-bit socket and ratchet wrench). Secure the crosshead
support collars to the columns. Tighten the cap screws to the torque specified in
Table 11
on page 34 (use hex-bit socket and torque wrench).
xi. Be sure the locks control valve is closed. Open the
LOWER
valve for five seconds and then
close it.
xii. Remove the height adjustment pins.
xiii. Open the
RAISE
valve and extend the lift cylinder extensions until the height adjustment
pins can be inserted in the low range position. Insert the height adjustment pins and close
the
RAISE
valve.
xiv. Go to step 3 to continue crosshead adjustment.
2. Start the system; see page 32. Start the HPS.
3. Be sure that the hydraulic cylinder is fully retracted.
4. Verify that both lift control valves are closed and that both height adjustment pins are in place.
5. Be sure the locks control valve is closed. Open the
RAISE
valve for five seconds and then close it.
This fills the lift cylinders with oil.
6. Loosen the crosshead support collars so that they can slide along the columns (use hex-bit socket
and ratchet wrench). Allow them to rest either on the top of the guide plate or on the lift cylinder
support brackets.
7. Unclamp the crosshead - open the locks control valve by rotating it counterclockwise.
8. Open either the
RAISE
or
LOWER
valve until the crosshead is in the desired position and then close
the valve.
9. Clamp the crosshead - be sure to fully close the locks control valve.
10. Adjust the crosshead support collars on the columns so that they are in contact with the bottom of
the crosshead (use hex-bit socket and ratchet wrench). Secure the crosshead support collars to the
columns. Tighten the cap screws to the torque specified in
Table 11 on page 34 (use hex-bit socket
and torque wrench).
11. Normal operation can resume.
Do not attempt to use the Jog controls to operate the hydraulic cylinder until approximately 1 minute has
passed. This allows the HPS to build enough pressure to clamp the crosshead lock cylinders. The noise
level of the HPS is a good indication of when this occurs; the noise level will decrease once it has built
enough pressure and the crosshead lock cylinders are clamped.