Arke K35001 Installation Guide download pdf (Page 4)

KOMPACT

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In order to proceed with the assembly, unpack all stair components and lay them out on a sufciently large surface.

Check all components for quantity, comparing with the list in TAB.1 (A = Code, B = Quantity).

In the packing box you will nd a DVD showing the assembly. We suggest watching it before proceeding with the

assembly.

For customers in the USA there is a customer assistance number 1-888 STAIRKT, which you can telephone in case

of problems.

Assembly

Measure carefully the oor-to-oor height (H) (g. 2).1.

Calculate the height of the Rise: 2.

a) deduct 20,5 cm (8 1/8”) (height of the rst rise) from the oor-to-oor height (H);

b) divide the result by the number of rises - 1 (divide by the number of treads, as the last rise is given by the

distance between the last tread and the landing oor).

Example (g. 2): with a oor-to-oor height of 263 cm (8’ 7 1/2”) and a staircase with 13 rises (i.e. with 12

treads): (263 – 20.5 / 13 – 1) (8’ 71/2” – 8 1/8” / 13 – 1) = 20.21 cm (8”).

Measure carefully the ceiling opening (C) (g. 2).3.

Calculate the measure of the Going (P): 4.

with the version of the staircase L=74 (2' 5

1/8”) (railing included) as in g. 2A the calculation is the following:

a) Deduct from the measure (C) of the ceiling opening the following steady measures:

1) 29 cm (11

3/8”) = depth of the last tread; 2) 69 cm (2’ 3 1/8”) = angle treads; 3) 1 cm (3/8”) = distance from

the wall.

b) Divide the result by the number of the remaining treads.

Example: with a ceiling opening measure of 231 (7' 7") cm and a staircase as in g. 2A, the calculation is the

following:

231 – 29 – 69 – 1 / 6 (7’ 7” – 113/8” – 2’ 31/8” – 3/8”/ 6) = 22 cm (8 5/8”) ( = measure of the going).

With the version of the staircase L=89 (2’ 11”) (railing included) as in g. 2B the calculation is the following:

a) Deduct from the measure (C) of the ceiling opening the following steady measures:

1) 33 cm (2’) = depth of the last tread; 2) 84 cm (2’9

1/2”) = angle treads; 3) 1 cm (3/8”) = distance from the

wall.

b) Divide the result by the number of the remaining treads.

Example: with a ceiling opening measure of 262 cm (8’7

1/8”) and a staircase as in g. 2B, the calculation is

the following:

262 – 33 – 84 – 1 / 6 (8’7

1/8” – 2’ – 2’9 1/8” – 3/8”/ 6 ) = 24 cm (9 1/2”) ( = measure of the going).

To determine easily the drilling point on the ceiling, you can t with the crew C53, the tread L25 onto the support 5.

N20 without tightening it denitively. In this manner it will be easy to sign the drilling points in line with the holes

in the plate of the nal support. Drill with bit Ø 18 mm (

22/32”) (g. 4) (g. 5). Tighten the nal support N20 on

the ceiling with the articles C48 checking the horizontal line of the stair.

Prepare the tie-rods C22 inserting the at washers C20 with the knurled surface towards the support ange and 6.

the nuts B99. Fit the elements N24 to the supports N21, N22 (g. 3). Insert, without tightening, the screws

B07, B06 and B23. Insert the tubes C21 into the internal part of the elements N24; the tie-rods C22; the at

washers C20 with the knurled surface towards the support ange and the nuts B99. Set the measure of the

going (P): for the straight treads the measure (P) is like calculated before (see point 4). For the angle treads the

going has a measure (P) of:

20 cm (7 7/8”) (g. 2A) for the version with the tread width (railing included) L=74 (2' 5 1/8”) .

24 cm (9 1/2”) (g. 2B) for the version with the tread width (railing included) L=89 (2’ 11”).

Fasten denitively the crews B07, B06 and B23. Proceed with the assembly of all the supports N21. Screw the

tube with the threaded tie-rod N25 to the support 2nd rise N22 until the end.

Insert the articles C13 and B02 into the elements F23. Fit the elements F23 with the articles C57 on level with 7.

the fore edge of the treads L25 upside down (on the side with the holes). Drill with bit Ø 4.5 mm (11/64”) to a

depth of 30 mm (11/8”) (g. 1) (g. 7).

Fit the tread L25 to the support N20 with the screws C53. Check the horizontal line of the tread and tighten 8.

denitively the articles C48. Put on the article D34 to cover the bracket with the help of the elements B12 and

C62, drilling with bit Ø 8 mm (5/16”) (g. 4) (g. 5).

Fit an intermediate support N21 into the nal support N20. Fasten it below by means of a self-blocking clamp 9.

before tightening. Assemble the tread by using the screws C53. (As you proceed with the assembly of supports

and treads, it is necessary to prop-up the supports with a mechanical steel prop, so that the ceiling will not have

to bear too much weight). It is necessary to put a piece of wood under every 4 to 5 supports and it is strictly

forbidden, for safety reasons, to get on the stair before having xed it to the oor (point 13) and strengthen

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Arke K35001 Installation Guide Page 4

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