Danfoss PVE 7 Series Руководство по эксплуатации - Страница 14

Просмотреть онлайн или скачать pdf Руководство по эксплуатации для Контроллер Danfoss PVE 7 Series. Danfoss PVE 7 Series 16 страниц. Electrohydraulic actuators

Печатать страницу
Service Manual
PVE Series 7

Exchanging PVE

Before replacing or dismounting a PVE

Dismounting of PVE

14 |
©
Danfoss | August 2017
These guidelines are only meant to point out issues that could be related to the application, the PVG and
its actuator. Danfoss can and will not give directives how work has to be planed and supervised.
1. Ensure that the actuator has to be dismounted. Follow the trouble shooting procedure to make sure
that the failure is not elsewhere in the application. See Service Manual for PVG32 and PVG100.
2. Clean surroundings on PVG for dirt and rust/oxidations; and do not use cleaning agents or methods
that require higher IP than the actuator supports.
3. Have a clean area to put new PVE/PVHC before mounting.
4. Have a clean area to put old PVE/PVHC before eventually returning for investigation.
5. Have the right tools at hand.
6. Ensure that spare part is the correct actuator .
7. Unpack replacing actuator:
a) If actuator has LVDT avoid mishandling and bending of it
b) Ensure all O-rings are in place
c) Ensure new bolts are present
d) Ensure presence of eventually electrical connector sealing
e) Eventually clean off excessive oil with a soft tissue. PVE must still be coated with a thin oil film
f) Keep actuator protected from a pollution during the whole process. Keep in a bag.
Mounting of PVE variants
PVEO/M/A Series 7
5 [0.2]
8 ± 0.5 N·m
[70 ± 4.4 lbf·in]
1. Remove connector(s) from PVE:
a) Pull connector, not cable.
b) Verify if cable and connectors can be reused or must be replaced e.g. isolation, lock.
2. Loosen and unscrew bolts counter clockwise. Be aware of leaking oil.
3. Remove PVE/PVHC carefully:
a) Don't introduce pollution to PVB nor actuator. Marked areas are especial sensible to pollution
"cover".
b) Ensure O-rings are removed with actuator.
c) Place removed actuator safe best in a bag.
4. Eventually clean PVB carefully with a soft tissue to have clean interface for replacing actuator.
PVEH/S Series 7
5 [0.2]
8 ± 0.5 N·m
[70 ± 4.4 lbf·in]
AX00000348en-US | 0101
P109120