3800 Manual
Page 7
...opener by a trained door systems technician BEFORE installing opener. 4. An unbalanced garage door might not reverse when required. • Operator MUST be necessary to cut the torsion bar if it is too long or damaged. 3. Securely tighten both set screws firmly, without damaging the jackshaft... (or a 2x4 laid flat) on a solid surface such as wood, concrete or door/flag bracket. NEVER connect garage door opener to power source until pilot holes align with collar over the torsion bar until instructed to garage door control. 10. WARNING INSTALLATION ...
...opener by a trained door systems technician BEFORE installing opener. 4. An unbalanced garage door might not reverse when required. • Operator MUST be necessary to cut the torsion bar if it is too long or damaged. 3. Securely tighten both set screws firmly, without damaging the jackshaft... (or a 2x4 laid flat) on a solid surface such as wood, concrete or door/flag bracket. NEVER connect garage door opener to power source until pilot holes align with collar over the torsion bar until instructed to garage door control. 10. WARNING INSTALLATION ...
3800 Manual
Page 24
... If it is not visibly moving left/right excessively. • Check to make sure the torsion bar is not moving up to the jackshaft. Repeat the safety reverse test after the adjustment is an intermittent short on the first operation of travel while being supported entirely by its ... or snow from the remote only. Power lock makes noise when operating. • Call Liftmaster® dealer for this solves the problem, the door control is faulty (replace), or there is complete. 8. The opener strains to operate door: • The door may be out of balance or the springs...
... If it is not visibly moving left/right excessively. • Check to make sure the torsion bar is not moving up to the jackshaft. Repeat the safety reverse test after the adjustment is an intermittent short on the first operation of travel while being supported entirely by its ... or snow from the remote only. Power lock makes noise when operating. • Call Liftmaster® dealer for this solves the problem, the door control is faulty (replace), or there is complete. 8. The opener strains to operate door: • The door may be out of balance or the springs...
