Assembly Sequence According To Din En 1004 - Layher Zifa Aufbau- Und Verwendungsanleitung

7. ASSEMBLY SEQUENCE
according to DIN EN 1004
Observe the general instructions for assembly and use on pages 4 – 5.
The snap-on claws of all parts must be snapped into the ladder frames
from above. Level the tower after the safety assembly.
The castors must be locked during assembly, modification or dis-
mantling and while there is anybody on the tower.
Hammer home the wedges in the system until the blow
bounces off. Screw couplers must always be well tightened
(50 Nm).
At the top tower level, a double guardrail
be fitted instead of two single guardrails.
Assembly
Tower model 620
16
17 or a tower beam 18 can
1. Pull the basic tower 9 open and firmly snap in the joints in the
folding part.
2. Snap the deck 23 or access deck
basic tower. To do so, only the 1st, 2nd or 3rd rung from below may
be used.
3. Insert castors 1 into the ladder frames of the basic tower
bolts and nuts to prevent them falling out.
Assembly
Tower model 621
1. Pull the basic tower 9 open and firmly snap in the joints in the
folding part.
2. Snap the access deck 24 into the top cross-rung of the basic tower.
3. Insert castors 1 into the ladder frames of the basic tower
bolts and nuts to prevent them falling out.
4. Fit two 1.00 m ladder frames
them with two guardrails. Secure the ladder frame joints with spring
clips 15.
24 into the cross-rungs of the
9 and use
9 and use
10 onto the basic tower 9 and brace