Instron 1000KPX-J3D, Руководство по эксплуатации

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Chapter 3: Operation
44 M47-17035-EN
iv. 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.
v. 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.
vi. Unclamp the crosshead - open the locks control valve by rotating it counterclockwise.
Caution
Do not leave the crosshead unclamped for longer than 30 minutes.
vii. Open the
LOWER
valve until the crosshead lift cylinders are fully retracted and then close
the
LOWER
valve.
viii. Open the
RAISE
valve to raise the crosshead approximately 12 mm (0.5 in) from the fully
retracted position and then close the
RAISE
valve.
ix. Clamp the crosshead - be sure to fully close the locks control valve.
Figure 10. 2000KPX frames with a J3-style crosshead.
Lift cylinder extensions in high
range position
Lift cylinder extensions in low
range position
1. Lift cylinder extension
2. Crosshead lift cylinder 3. Crosshead
4. Adjustment pin
3
4
1
2
3
1
4
2
When you open the locks control valve:
• The crosshead will move up slightly. This is normal operation and is not a cause for concern.
• The HPS builds to maximum pressure. The noise level of the HPS increases. The noise level will
decrease once it has built enough pressure for the lift cylinders.