If locking system problems occur, make adjustments as explained below.
Check to see that the operator moves freely with the window in the open position. If binding occurs, the problem will be with the lock handle or corner drives: one (or both) may need to be greased or replaced. Another possibility is that the screws in the lock bar are not centered and the bar is rubbing against the ferrules.
If the locking system moves freely, close and lock the window. A binding or hard-to-lock condition indicates a tight keeper or misaligned lock bar. Removing each keeper and working the lock handle up and down may help locate the keeper/lock bar pin combination that is binding. To remedy the problem, the keeper can be relocated by moving it slightly inward (away from the sash toward the lock bar pin), and slightly upward or downward, depending on the lock bar pin location.
If visual inspection indicates a lock bar that does not run parallel with the frame, the bar slots can be opened slightly, or the ferrule can be moved outward to place the pin closer to the keeper.
A rubbing or grinding sound will be the lock bar rubbing against a ferrule. Look for this condition on the lock bar to pinpoint the lock bar pin/keeper location. Also inspect the center link between the corner drives: the bent portion of the link can be rubbing or binding on the operator if there is not enough clearance between the two components.
Posted in: Series 2050 Garden Window