Key facts
- Brand
- O.S. Engines
- Model
- FS-40S
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-08
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O.S. FS-26S & FS-40S Four Cycle Engine Owner's Instruction Manual
This document is the owner's instruction manual for the O.S. FS Series overhead-valve four-stroke-cycle engines, specifically models FS-26S and FS-40S. It serves as a guide for users to safely operate, install, and maintain these model aircraft engines.
The manual provides detailed instructions on safety precautions, engine introduction, installation procedures including choke rod and exhaust pipe adjustment, fuel selection, starting techniques, running-in procedures, carburetor adjustments, valve adjusting, and care and maintenance. It also includes exploded views of the engine and carburetor with parts lists.
All O.S. Engines FS-40S documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What safety precautions should be taken regarding the propeller?
Never touch or allow objects to contact the rotating propeller, and do not crouch over the engine when running. A weakened propeller may disintegrate at speeds exceeding 600 feet per second.
From: O.S. FS-30S & FS-40S Four Cycle Engine Owner's Instruction Manual
What is the maximum safe speed for a propeller tip on these engines?
Propeller tip speeds may exceed 600 feet per second, which can cause serious injury if the propeller fails.
From: O.S. FS-30S & FS-40S Four Cycle Engine Owner's Instruction Manual
What safety precautions should be taken regarding the propeller?
Never touch or allow any object to come into contact with the rotating propeller, and do not crouch over the engine when it is running.
From: O.S. FS-26S & FS-40S Four Cycle Engine Owner's Instruction Manual
Can this engine be used for purposes other than model aircraft?
No, the engine was designed specifically for model aircraft and should not be attempted to be used for any other purpose.
From: O.S. FS-26S & FS-40S Four Cycle Engine Owner's Instruction Manual