Bedroom slide breaking shear pins
I have a 2005 GB cruise air with 3 slides. Livingroom, kitchen and bedroom. When bringing in the slides I hold down two switches. When the slide is completely in or out it stops automatically and ...
Forum Discussion
This is what I posted to you on a private message. Doug
There are 2 types. A Shear PIN and a Shear BOLT. BOTH have to be hardened steel. The Bolt has to have a non threaded shaft that engages the motor shaft and gear. The Shear PIN, must be steel with the strength to handle the force of the drive. If they use standard Pins, they will shear off. The design is, when the room is fully extended or retracted, the Shear Pin will handle the stress. But, yes, it is best to monitor your operation and STOP the second the room is fully extended or retracted. Does your motor/trans assbly make the Ratchet noise when fully extended or retracted?
Now, I don't understand why some seem to insist that the controller has some type of limit. Some do and some DON'T. The ones that do usually have an adjustment POT on the board with an access hole to adjust it. MOST slide rooms have either a Mechanical STOP or a Rachet clutch in the Motor/Transmission to keep from over torqueing the system and shearing off pins and bolts. Another thing that shears bolts and pins is, if you have ANY slop when installing the bolt or shear pin, that will cause a Shear action to cut the pin/bolt. Can you post a pic of the Motor/drive where the shear pin is located? Doug
There are 2 types. A Shear PIN and a Shear BOLT. BOTH have to be hardened steel. The Bolt has to have a non threaded shaft that engages the motor shaft and gear. The Shear PIN, must be steel with the strength to handle the force of the drive. If they use standard Pins, they will shear off. The design is, when the room is fully extended or retracted, the Shear Pin will handle the stress. But, yes, it is best to monitor your operation and STOP the second the room is fully extended or retracted. Does your motor/trans assbly make the Ratchet noise when fully extended or retracted?
Now, I don't understand why some seem to insist that the controller has some type of limit. Some do and some DON'T. The ones that do usually have an adjustment POT on the board with an access hole to adjust it. MOST slide rooms have either a Mechanical STOP or a Rachet clutch in the Motor/Transmission to keep from over torqueing the system and shearing off pins and bolts. Another thing that shears bolts and pins is, if you have ANY slop when installing the bolt or shear pin, that will cause a Shear action to cut the pin/bolt. Can you post a pic of the Motor/drive where the shear pin is located? Doug
