Insert the casters into the ladder leg bushings, pressing the caster into the bushing by hand until it is fully seated. Repeat this process for the second End Frame Access Ladder.
2. Turn the End Frame Access Ladder over so that it rests on its casters.
Holding an End Frame Access Ladder with one hand, engage the “U” channel on one truss to the ladder leg. Note: the locking pin on the truss should be disengaged and free to be pushed back and forth. Depress the thumb plate of the truss lock and align the pin to a predetermined hole in the ladder leg. Release the thumb plate to engage the spring-loaded Positive Engagement Lock
3. Hold the second End Frame Access Ladder with one hand.
Repeat Step 2 to attach the other end of the truss to the second End Frame Access Ladder.
4. Attach the second truss to the partially assembled scaffold.
Make sure both trusses are at the same height and parallel to the floor. Do not screw the knurled thumb plate onto the threaded nipple of the Positive Engagement Lock yet. The spring-loaded pin, when properly positioned in the ladder leg holes, will hold the truss in place.
5. Complete the assembly by laying the platform in place, resting it securely within the platform ledges of each truss channel.
No metal platform banding should be visible above the vertical lip of the truss channel. Make sure the platform ledges on the truss channel are thoroughly cleaned and free of debris that would prevent the platform from seating properly into the trusses.
6. Adjust Platform Height
To adjust the platform height move to one end of the scaffold and grasp both Positive Engagement Locks on the trusses. Depress both thumb plates, pushing the pins out of the holes in the ladder legs. The trusses are now free to move either up or down on the ladder frame to the desired platform height.
Make sure pins are engaged.
Following height adjustment, release the thumb plates and allow the spring-loaded pins to engage the nearest ladder leg hole.
7. Tighten the screws.
Screw the knurled thumbplate onto the threaded nipple of the Positive Engagement Lock to positively prevent the pin from backing out of the hole. Repeat Steps 6 - 7 at the opposite end of the scaffold making sure the trusses are at the same height and parallel to the floor. Check again to see that the platform is properly secured within the truss channels.