Cleco 7PTHD Series, Инструкция по эксплуатации

Страница: 17 / 38

81c_Wartung en bedingt.fm, 18.08.2008
P1880E/EN 2008-08 17
Maintenance
6
1. Remove the threaded pin 15 and ball 14 .
2. Remove the O-ring 12 and sleeve 13 .
3. Align the output drive and claw as shown in the illustration, see 6.2 Activating the reserve
oil, page 15 .
4. Rotate the equalizing piston 11 clockwise as far as it will go until X = 0 (starting point).
5. Unscrew the equalizing piston 11 counterclockwise by 2.5 turns (reserve oil).
6. Connect the pulse unit 8 to the quick disconnect coupling 5 using the adapter.
7. Close the shut-off valve 7 .
8. Set the working pressure to approx. 73 psi (500 kPa).
9. Slowly open the shut-off valve 7 all the way until the
gauge shows a negative pressure of –13 psi (–0.9 bar,–90 kPa).
10. Wait approx. 2 minutes until the number of vacuum bubbles has reduced significantly.
11. Close the shut-off valve
7 slowly. The gauge shows atmospheric pressure again. Missing oil
is pushed into the pulse unit 8 .
12. Repeat steps 8 through 11 if necessary until the number of bubbles approaches zero.
13. Uncouple pulse unit
8 , unscrew the adapter and add a couple of drops of oil using the injec-
tor B
1)
.
14. Mount the ball 14 and screw the threaded pin 15 into place (1 +0.022 ft lbf, or 1 +0.3 Nm).
15. Turn the equalizing piston 11 another 1.0 turns counterclockwise, or slightly more if neces-
sary, until the sleeve 13 can be inserted (oil compensation volume).
16. Install the sleeve 13 and O-ring 12 .
NOTE
Small air bubbles that become visible due to the high pressure during filling do not mean that the
pulse unit is leaking.
The filling process is not impaired.