Position The Opener - Craftsman 139.53225SRT Owner's Manual

Installation Step 4
Position the Opener
Folow instructions wMch apply to your door
type as l_ustrated.
A 2×4 [aid fiat is convenient for setting an ideal
door4o-T-ra/distance°
Raise the opener onto a stepladder,
You will ne_ help at this point it the ladder _a
+Open the door a/the way and place a 2×4 _aid flat
on the top section beneath the T-ra/
If the top panel hits the trolley when you raise
the door, puff down on the troltey release arm lo
disconnect the inner and outer sections. The
trolley can remain disconnected until S_ep 12 is
With the door fu/y open and paratel to the floor,
measure the distance from the floor to the top of
the door
Using a stepladder as a sup_)£, raise the opener
to the same distance as the d_r from the floor (it
will be at a stght angle as shown).
The top of the door should be level with the top of
the opener Do not position the opener more than
2'_above this point
16