GEARex
®
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40310 EN
29 of 36
15
Please observe protection
note ISO 16016.
Drawn:
2019-09-19 Pz/Wb
Replacing:
KTR-N dated 2017-01-02
Verified:
2019-09-19 Pz
Replaced by:
Replacement of O-rings (component 8):
The O-rings (component 8) can be replaced with no need to shift the power packs to be connected, provided that
the shaft shoulder is not bigger than the outside diameter D of the hubs (component 1).
•
Drain the grease as per chapter 7.2.
•
Unscrew and remove the screwing (components 3 and 4) of the sleeves (component 2).
•
Shift the sleeves (component 2) from the spline and the hub (component 1) until the O-ring (component 8) can
be removed.
•
Cut a new O-ring (component 8) radially in one position or cut the O-ring to peripheral length.
•
Fit the O-ring (component 8) around the shaft and afterwards glue the separation line, e. g. with Loctite 401.
•
Insert the O-ring (component 8) into the keyway of the sleeve (component 2).
•
Assemble the sleeves as per chapter 4 and 5 and start with the operation.
If O-rings (component 8) only are to be used, the power packs to be combined have to be
shifted and the coupling has to be disassembled as per chapter 7.8.
!
Protect O-rings (component 8) and flat gaskets (component 5) on the driving and driven side
against damages and heat.
!
Please observe the manufacturer’s instructions regarding the use of adhesives.
!
To inspect the circumferential backlash the power pack which is switched off needs to be
secured against accidental switch-on.
Driving side
•
Turn the hub opposite the direction of drive.
!
Here the sleeve must not be axially displaced from its position of wear.
•
Mark sleeve (component 2) and hub (component 1) (see illustration 33).
•
Turn the hub (component 1) in the direction of drive and measure the circumferential backlash
S
max
.
•
When reaching the circumferential backlash
S
max
the coupling must be replaced.
7
Maintenance and service
7.3 Replacement of sealing elements
7.4 Standard values for circumferential backlash
