9 Replacing components
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HSD S.p.A. © - h0108k01a.fm120718
9.1 Replacing the shaft kit
Spare shaft kits are available for installation in the event of worn bearings.
The shaft kits include a shaft, bearings, rotor, screw dowel and coupling system.
To find the sprindle kit designed for your own model, let the HSD sales office know the serial
number of the spindle; this number is usually printed on the front flange or the front of the casing
(see paragraph
3.4 “General overview and main parts”).
For versions with a rotary fluid distributor and/or synchronous motor, the user
cannot replace the shaft kit; refer to appendix
D “Customer service”.
Example of a shaft kit for the short-nose ES779
Example of a shaft kit for the ES789
When replacing the shaft kit, follow the indications given below.
During the procedure, the following O-rings are used:
• OR 2081
• OR 2025
• ORM 0080-15
• ORM 0050-15
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