TRS Advanced WB Intel Issue 02.pdf - 第18页

TRS Advanced Maintenance 18 Issue 2, Nov 14 Use the following procedure to remo ve and replace the TRA cylinders. 1. Ensure Ris ing Table and TRP are at their Home positions. 2. Power down the machine and dis connect the…

Issue 2, Nov 14

TRS Advanced Maintenance

Objective 9: Remove and Replace the TRA Cylinders.

When do you need to replace cylinders?

TRS Advanced Maintenance

Issue 2, Nov 14

Use the following procedure to remove and replace the TRA cylinders.

1. Ensure Rising Table and TRP are at their Home positions.

2. Power down the machine and disconnect the air supply

3. When removing the cylinders the TRP arms may lift. Hold the TRP down and secure

with cable ties.

4. Cut all cable ties connecting the pneumatic tubes and sensor wires to the cylinder.

5. Disconnect all pneumatic tubes from the 4 x flow controllers per cylinder

6. Disconnect the 2 x pantograph springs per side by removing L Bracket from the sliding

block. Do Not Use Pliers

7. Remove sensors and straps from Left Hand cylinder. It is not necessary to unplug the

sensors from the electrical interface bracket. If this is done ensure loom / connectors

are clearly labelled.

8. Remove the M8 nuts from the tip of the cylinder rods. Note: these nuts are secured

with ‘Green’ thread lock compound so maybe tight. These nuts will not be required

when fitting the new cylinder as new nuts are provided.

9. Remove the M20 nuts from the fixed end of the cylinder. Note: these nuts are secured

with ‘Blue’ thread lock compound. These nuts will not be required when fitting the new

cylinder as new nuts are provided. Note: Using another spanner on the flat section of

the cylinder can hold the cylinder still whilst these nuts are loosened and removed.

10. Remove the cylinder from the TRS assembly.

11. Fit the new cylinder between the brackets. Fit the M20 nut using ‘Blue’ thread lock

compound. Do not fully tighten the nut at this stage.

Issue 2, Nov 14

TRS Advanced Maintenance

12. Adjust the angle of the cylinder to achieve a 1mm – 2mm gap between the flow

controller on the cylinder and the pantograph spring bracket.

NOTE

Check the gap, once springs are fitted.

13. Tighten the M20 nut maintaining the 1mm – 2mm gap set above.

14. Ensure ‘Green’ thread lock compound is used on both outer and inner M8 nuts.

15. Ensure the TRP arms are fully down and pushed towards the rear of the machine

whilst completing the below. Ideally another person should be used to hold the TRP

arms in position.

16. Place a 0.5mm feeler gauge between the outside M8 nut and the bracket and tighten

the nut, this will draw the cylinder out to its full extent.

17. Once complete, remove the feeler gauge and push the cylinder back in closing the

0.5mm gap between the outer nut and the bracket.

18. Wind the inner nut to tighten against the inside of the bracket.

19. Confirm TRA will run to the solid stop points (Dowel Pin).

20. Refit pneumatic tubes. Double check exhaust valves are fitted in correct orientation

(use arrow on valve body – should be away from cylinder).