Correct Installation of Roll Bar Adapter
The roll bar adapter (65-RBA20M-1.3) connects an LVM60 or LVM100 motor to a 1.315″ OD (1-⅝” nominal) roll bar pipe used on most systems.
Incorrect installation is the primary cause of cracked or broken adapters and vents that only open partially.
Correct Method
- Slide the solid end of the adapter completely inside the roll bar pipe.
- Align the motor shaft of the LVM motor with the cross-hole in the adapter.
- Insert one long through-bolt (included with adapter) all the way through:
pipe wall → adapter → motor shaft → adapter → opposite pipe wall. - Tighten the nut securely.
The through-bolt keeps the adapter fully supported so the force pushes straight across the metal (its strongest direction) instead of trying to bend it
Image: Correct Installation
Incorrect Method
- Bolting the adapter to the motor shaft first, then trying to hold the pipe on with Tek screws or short bolts.
- Leaving any part of the adapter sticking out of the pipe (cantilevered).
This puts the adapter in bending — it will crack exactly like the photo below, usually within the first few weeks.
Image: Incorrect Installation – Adapter Broken
