Flange Surface Sealing Element Repair; Sealing Elements For Ls Control Blocks - Bosch Rexroth SB23 Manual

Sealing element
disassembly/assembly

5.4 Flange surface sealing element repair

5.4.1 Sealing elements for LS control blocks

Fig. 8: Flange with three tie rods (Standard)
Table 3: Sealing elements for LS control blocks
Item Quantity Designation
2 O-ring
2 Support ring
1 O-ring
3 Spacer
2 O-ring
2 O-ring
2 O-ring
1. Remove adhesive spacers that might be available from the flange surface.
2. Remove the O-rings and support rings from the ports P, Y, R, Rx and X.
3. Insert new O-rings and support rings into the ports P, Y, R, Rx and X in the flange
surface, see Table 4.
Table 4: Sealing element disassembly/assembly for LS control blocks
Port Disassembly
Pump P
LS Y
Drain oil R
Pilot oil
Feed oil X
Drain oil Rx
Fig. 9: Flange with five tie rods
Use
P Y
,
P Y
,
R
, ,
Rx X
, , (Ø 8.4 mm)
Rx X
, , (Ø 11.4 mm)
Rx X
, , (Ø 13.6 mm)
RE 66133-10-R/05.2013, SB23, SB33, EHR23, EHR33, Bosch Rexroth AG
Assembly description
Dimensions
18 x 2.5
20 x 2.5
0.04
, ,
6 x 1.5
8 x 2
10 x 2
Assembly
11/16