Document Title

Document / Project ID

Revision

Thread locking adhesives

M000416

C

Author

Approved by

Document Category

Language

Page

Date

Markku Mattila

SP-standard

Eng

1 / 1

30.5.2008

© The information contained in this document is the sole property of Steerprop Ltd. any reproduction or disclosure in part or whole without written permission is prohibited.

Thread locks

1. Screw locking

Loctite 243 general-purpose adhesive is used to lock screws, with the following
exceptions:

a. Stud bolt metal ends, Loctite 270 or 2701.
b. Adjusting screws, Loctite 222.
c. The screws of the outer ring of the slewing ring are leaved without locking

adhesive.

d. The lower assembly’s and slewing assembly’s cap nuts are locked with wire by

welding.

2. Locking plugs and hydraulic couplings

Thread size R ¾” or smaller Loctite 542
Thread size R 1” or larger Loctite 577

3. Mechanical angle indicators

Lock the dial and scale screws with Loctite 542

4. Proximity sensors

Lock the threads with Loctite 542

Flange sealants

Loctite 5923, Permatex Aviation From-A-Gasket No.3 Sealant or Perfect seal is
used as flange sealant.