57
<
CAUTION
Burn injury hazard
Escaping oil is possibly hot
•
Remove control piston (
5
) with plug-in nozzles (
2/4
) (D
1
/D
2
)
and pressure spring.
<
IMPORTANT NOTE
Risk of mix-ups
When reinstalling the plug-in nozzles, take care to
ensure they are not mixed up! For plug-in nozzle
selection, see Chapter 4.7 .
Dismantling of plug-in nozzle D
1
•
Remove plug-in nozzle D
1
(
2
) (with packing ring) from the
control piston.
Dismantling/installation of plug-in nozzle D
2
•
Loosen and remove the retaining ring (
3
) from the control
piston (
5
).
•
Remove plug-in nozzle D
2
(
4
) (with packing ring) from the
control piston.
NOTE
A roughly ø 6 mm rod (never use a pointed object like, for
instance, a scriber) can be used to help press it out.
•
Press new plug-in nozzle D
2
(
4
) firmly into the control piston
(
5
) all the way to the stop with the packing ring and the nozzle
outlet pointing upward (nozzle type legible).
•
Insert the retaining spring (
3
) into the control piston (
5
).
Installation of plug-in nozzle D
1
•
Press new plug-in nozzle D
1
(
2
) firmly into the control piston
(
5
) all the way to the stop with the packing ring and the nozzle
outlet pointing upward (nozzle type legible).
•
Insert pressure spring (
6
) into the borehole.
•
Insert control piston with new plug-in nozzle(s) in the
borehole over the pressure spring without skewing.
•
Check to make sure the control piston (
5
) moves easily by
pressing it against the pressure spring (
6
). Skewing leads to
malfunctions.
•
Place stop screw (
1
) with new packing ring on the thread of
the flow limiter housing (
7
) and tighten with hexagon socket
screw key – torque 15 ± 1 Nm.
•
Open the oil feed to the flow limiter (
7
).
Fig. 39
Changing the plug-in nozzle SMBM-V
Table 43
Legend to Figure
39
Item Designation
<Content>
1 Stop screw with packing ring
2
Plug-in nozzle D
1
with packing ring (startup 1:4)
2a Packing ring Plug-in nozzle D
1
3 Retaining ring 10x1
4 Plug-in nozzle D
2
with packing ring (operation 1:1)
4a Packing ring Plug-in nozzle D
2
5
Control piston
6 Pressure
spring
7 Flow limiter housing
NOTE
In the case of a change in the nozzle size, the nozzle
specifications on the type plate must be changed
accordingly.
