What the thread found

• The Master Arm can be used with the Klassen vest, and multiple operators have successfully operated this combination for extended periods without issues.
• Potential arm lockup at the ends of boom range may occur due to differences in socket block position and arm angle between back-mount and front-mount configurations.
• Worn rubber bumper stops on the arm should be inspected when combining Master Arm with Klassen vest.
• Spring failure in Master Arms can occur regardless of which vest is used, as it depends on the age and condition of the arm itself.
• Professional overhaul and repair services for the Master Arm are available, with costs varying based on the scope of work needed.

Depends on

• No firm technical conclusions were reached about the compatibility issues mentioned.
• The reported arm lockup problem was not confirmed as a consistent or widespread issue.
• Overhaul costs cited range significantly and depend on the specific repairs and upgrades requested.
• Testimonials are based on individual operator experience and may not represent all users.

Gear in this thread

Master Seriescatalog

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