4. Assembly Instructions
PNEG-1785
NCHT “X” Series Ladders
33
Ladder and Safety Cage Layout
Tank Ladder and Eave Platform
Substructure Platform 45°
Manway Platform 45°
Item
4 Rin
g
s
5 Rin
g
s
6 Rin
g
s
7 Rin
g
s
8 Rin
g
s
9 Rin
g
s
10 Rin
g
s
1
1
R
ings
12 Rin
g
s
13 Rin
g
s
14 Rin
g
s
15 Rin
g
s
16 Rin
g
s
17 Rin
g
s
18 Rin
g
s
19 Rin
g
s
20 Rin
g
s
21 Rin
g
s
22 Rin
g
s
A
Platform Located Above Ring:
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4' Ladder Section
3
3
4
5
5
6
7
7
4
5
5
5
6
7
7
7
7
7
8
Safety Cage 4' Section
0
1
2
2
3
4
4
5
2
3
3
3
4
4
4
4
5
5
6
Bell Safety Cage - 2'
0
0
1
0
0
1
0
0
1
0
0
0
1
0
0
0
0
0
1
Bell Safety Cage - 3'
0
1
0
0
1
0
0
1
0
1
1
1
0
0
0
0
1
1
0
Bell Safety Cage - 4'
0
0
0
1
0
0
1
0
0
0
0
0
0
1
1
1
0
0
0
Eave Platform Package
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Dimension A
135 167 199 231 263 295 327 359 167 231 231 231 263 295 295 295 327 327 359
B
Platform Located Below Ring:
5
7
7
7
8
9
9
9
10
10
11
4' Ladder Section
4
4
4
5
5
5
6
6
6
7
7
Safety Cage 4' Section
2
2
2
3
3
3
4
4
4
5
5
Safety Cage 3' Section
0
0
0
0
0
0
0
0
0
0
0
Bell Safety Cage - 2'
0
1
0
0
0
0
1
0
0
0
0
Bell Safety Cage - 3'
0
0
0
1
1
1
0
0
0
1
1
Bell Safety Cage - 4'
1
0
1
0
0
0
0
1
1
0
0
Intermediate Platform Package
1
1
1
1
1
1
1
1
1
1
1
Dimension B
192 160 192 224 224 224 256 288 288 320 320
Item
15'
18'
21'
24'
27'
30'
36'
4' Ladder Section
3
4
4
5
5
5
6
Safety Cage 4' Section
1
2
2
2
3
3
4
Bell Safety Cage - 2'
0
1
0
0
1
0
0
Bell Safety Cage - 3'
0
0
1
0
0
0
1
Bell Safety Cage - 4'
1
0
0
1
0
1
0
Substructure Platform Package
1
1
1
1
1
1
1
Dimension C
148
168
182
200
218
234
274
Item
15'
18'
21'
24'
27'
30'
36'
4' Ladder Section
3
3
4
4
4
5
6
Safety Cage 4' Section
1
1
2
2
2
3
3
Bell Safety Cage - 2'
1
0
1
0
0
1
0
Bell Safety Cage - 3'
0
0
0
1
0
0
0
Bell Safety Cage - 4'
0
1
0
0
1
0
1
Substructure Platform Package
1
1
1
1
1
1
1
Dimension C
116
136
150
168
186
202
242
Summary of Contents for NCHT X Series
Page 1: ...PNEG 1785 NCHT X Series Ladders Assembly Instructions PNEG 1785 Date 01 27 11 ...
Page 2: ...2 PNEG 1785 NCHT X Series Ladders ...
Page 49: ...4 Assembly Instructions PNEG 1785 NCHT X Series Ladders 49 Ladder Splice Detail Figure 4AS ...
Page 60: ...4 Assembly Instructions 60 PNEG 1785 NCHT X Series Ladders Ladder Splice Detail Figure 4BD ...