User guide

ServoTube 25/38 Module User Guide
Chapter 3
Maintenance
Page 28
SB25 and XB38
Removal
Remove the bellows as previously described.The module will appear as it is shown in Figure 3.15.•
Place spacers around or under the thrust rod to prevent it coming into contact with the bearing rail or other •
ferrous material. Foam pipe insulation or wooden blocks are ideal for this.
Note. On the SB25 modules, M8 bolts secure the thrust rod to the thrust rod supports. The XB38 module
uses M10 bolts.
Important. There is a serial number label on one end of the thrust rod. Record the end that
has the serial number and its orientation. It is important when replacing the thrust rod this
parameter is maintained. The serial number should be horizontal and read left to right as
shown right.
Remove the two bolts that secure the thrust rod to the two thrust rod supports, see Figure 3.15.•
Carefully slide the thrust rod out through the forcer and across the thrust rod supports until it is clear of the •
module assembly.
Store the thrust rod in a safe place away from ferrous material.•
Replacement
Check the orientation of the thrust rod with regard to the end with the serial number label.•
Carefully slide the thrust rod in through the rst thrust rod support. Place spacers around or under the thrust •
rod as soon as it passes through the thrust rod end support.
Continue to slide the thrust rod through the forcer and into the opposite thrust rod support.•
Check the orientation of the thrust rod serial number label.•
Ret and tighten the two bolts that secure the thrust rod to the thrust rod supports. •
Note. The SB25 module uses M8 xings and the XB38 uses M10 xings. Tighten to a torque of 50 Nm for
both versions.
Ret the bellows as described on page 25.•
Remove fixing
Remove fixing
Thrust rod
Thrust rod support
Thrust rod support
Forcer
Withdraw
thrust rod
Figure 3.15