Introduction
This document provides operation information for the Curt® Rota-Flex™ Pin Box.
Additional information about this product can be obtained from lippert.com/support or by downloading
the free LippertNOW app. The app is available on Apple App Store® for iPhone® and iPad® and also on
Google Play™ for Android™ users.
Apple App Store®, iPhone®, and iPad® are registered trademarks of Apple Inc. Google Play™ and Android™
are trademarks of Google Inc.
NOTE: Images used in this document are for reference only when assembling, installing and/or operating
this product. Actual appearance of provided and/or purchased parts and assemblies may differ.
Safety
Read and understand all instructions before installing or operating this product. Adhere to all safety labels.
This manual provides general instructions. Many variables can change the circumstances of the instructions,
i.e., the degree of difficulty, operation and ability of the individual performing the instructions. This
manual cannot begin to plot out instructions for every possibility, but provides the general instructions,
as necessary, for effectively interfacing with the device, product or system. Failure to correctly follow the
provided instructions may result in death, serious personal injury, severe product and/or property damage,
including voiding of the Lippert limited warranty.
The "WARNING" symbol above is a sign that a procedure has a safety risk involved and may cause
death or serious personal injury if not performed safely and within the parameters set forth in
Failure to follow instructions provided in this manual may result in death, serious personal injury
and/or severe product and property damage, including voiding of the component warranty.
The "CAUTION" symbol above is a sign that a safety risk is involved and may cause personal injury
and/or product or property damage if not safely adhered to and within the parameters set forth
Always wear eye protection when performing service, maintenance or installation procedures.
Other safety equipment to consider would be hearing protection, gloves and possibly a full face
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Questions and answers
How to grease bearing assembly
To grease the bearing assembly for the Lippert Components Curt Rota-Flex Pin Box:
1. Check the bearing and grease once per season.
2. If more grease is needed, add it to the bearing assembly.
3. Use only one of the approved greases:
- Mobilgrease HP (Mobil Oil)
- Ronex MP (Exxon/Standard)
- Kendall L-427 (Kendall Refining Co.)
- Val-plex EP Grease (Ashland Oil Co.)
- Premium Wheel Bearing Grease 707L (Pennzoil Prod. Co.)
4. Do not mix lithium, calcium, sodium, or barium complex greases.
5. If switching grease types, completely remove the old grease before applying the new grease.
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