GSI PNEG-1785 User Manual

PNEG-1785

NCHT “X” Series Ladders

Assembly Instructions

PNEG-1785

Date: 09-27-13

2 PNEG-1785 NCHT “X” Series Ladders

Table of Contents

Contents

Chapter 1 Introduction ..........................................................................................................................................4

Chapter 2 Safety .....................................................................................................................................................5

Safety Guidelines .................................................................................................................................. 5

General Safety Statement ..................................................................................................................... 6

Safety Instructions ..................... ... .... .......................................... ... ... ..................................................... 7

Safety Sign-Off Sheet ........................................................................................................................... 9

Proper Storage Grain Bin/Silo Materials Prior to Construction ........................... .... ... ... ... ... .... ... ......... 10

Chapter 3 Decals ..................................................................................................................................................11

Chapter 4 Assembly Instructions ......................... .................................................... ..........................................14

Left Hand Ladder Assembly ................................ ... ... .... ... ... ... .... ... ... ................................................... 14

Right Hand Ladder Assembly ............................................................................................................. 27

Ladder Safety Cage Sections ............................................................................................................. 35

Ladder Safety Bell Cage Sections ...................................................................................................... 36

Ladder and Safety Cage Layout ......................................................................................................... 38

Access Door Platform ......................................................................................................................... 40

Ladder to Platform Mounting Details ............................. ................................................ ...................... 52

Ladder Splice Detail ............................................................................................................................ 54

Substructure Platform ............................................ ... .... ... ... ... .... ......................................................... 55

Ladder Splice Detail ............................................................................................................................ 65

Chapter 5 Warranty ..............................................................................................................................................67

PNEG-1785 NCHT “X” Series Ladders 3

1. Introduction

READ THIS MANUAL carefully to learn how to properly use and install equipment. Failure to do so could
result in personal injury or equipment damage.

INSPECT the shipment immediately upon arrival. The customer is responsible for ensuring that all
quantities are correct. The customer should report and note any damage or shortage on the bill of lading
to justify their claim to the transport company.

THIS MANUAL SHOULD BE CONSIDERED a permanent part of your equipment and should be easily
accessible when needed.

This warranty provides you the assurance that the company will back its products when defects appear
within the warranty period. In some circumstances, the company also provides field improvements, often
without charge to the customer, even if the product is out of warranty. Should the equipment be abused,
or modified to change its performance beyond the factory specifications, the warranty will become void
and field improvements may be denied.

4 PNEG-1785 NCHT “X” Series Ladders

2. Safety

DANGER

WARNING

CAUTION

NOTICE

This is the safety alert symbol. It is used to alert you
to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.

WARNING indicates a hazardous situation which, if not

avoided, could result in death or serious injury.

CAUTION, used with the safety alert symbol, indicates a
hazardous situation which, if not avoided, could result in
minor or moderate injury.

NOTICE is used to address practices not related to
personal injury.

DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.

Safety Guidelines

This manual contains information that is important for you, the owner/operator, to know and understand.
This information relates to protecting personal safety and preventing equipment problems. It is the
responsibility of the owner/operator to inform anyone operating or working in the area of this equipment
of these safety guidelines. To help you recognize this information, we use the symbols that are defined
below. Please read the manual and pay attention to these sections. Failure to read this manual and its
safety instructions is a misuse of the equipment and may lead to serious injury or death.

PNEG-1785 NCHT “X” Series Ladders 5

2. Safety

This product has sharp edges, which may cause serious injury. To avoid injury, handle
sharp edges with caution and always use proper protective clothing and equipment.

General Safety Statement

Our foremost concern is your safety and the safety of others associated with this equipment. Th is manual
is to help you understand safe operating procedures and some problems which may be encountered by
the operator and other personnel.

As owner and/or operator, you are responsible to know what requirements, hazards, and precau tions exist
and inform all personnel associated with the equipment or in the area. Safety precautions may be required
from the personnel. Avoid any alterations to the equipment, which may produce a very dangerous
situation, where SERIOUS INJURY or DEATH may occur.

You should consider the location of the bin site relative to power line locations or electrical transmission
equipment. Contact your local power company to review your installation plan or for information
concerning required equipment clearance. Clearance of portable equipment that may be taken to the bin
site should also be reviewed and considered. Any electrical control equipment in contact with the bin
should be properly grounded and installed in accordance with National Electric Code provisions and other
local or national codes.

This product is intended for the use of grain storage only. Any other use is a misuse of the product.

Sidewall bundles or sheets must be stored in a safe manner. The safest method of storing sidewall
bundles is laying horizontally with the arch of the sheet upward, like a dome. Sidewall sheets stored on
edge must be secured so that they cannot fall over and cause injury. Use care when handling and moving
sidewall bundles.

Personnel operating or working around equipment should read this manual. This manual must be
delivered with equipment to its owner. Failure to read this manual and its safety instructions is a misuse
of the equipment.

6 PNEG-1785 NCHT “X” Series Ladders

2. Safety

Follow Safety Instructions

Carefully read all safety messages in this manual and
safety signs on your machine. Keep signs in good
condition. Replace missing or damaged safety signs. Be
sure new equipment components and repair parts include
the current safety signs. Replacement safety signs are
available from the manufacturer.

Learn how to operate the machine and how to use controls
properly. Do not let anyone operate without instruction.

Keep your machinery in proper working condition.
Unauthorized modifications to the machine may impair
the function and/or safety and affect machine life.

If you do not understand any part of this manual or need
assistance, contact your dealer.

Read and Understand Manual

Practice Safe Maintenance

Understand service procedures before doing work. Keep area
clean and dry.

Never lubricate, service, or adjust machine while it is in operation.
Keep hands, feet, and clothing away from rotating parts.

Keep all parts in good condition and properly installed. Fix
damage immediately . Replace worn or broken p arts. Remove any
built-up grease, oil, and debris.

Maintain Equipment
and Work Area

Safety Instructions

Our foremost concern is your safety and the safety of others associated with this equipment. We want to
keep you as a customer. This manual is to help you understand safe operating procedures and some
problems that may be encountered by the operator and other personnel.

As owner and/or operator, it is your responsibility to know what requirements, hazards, and precautions
exist, and to inform all personnel associated with the equipment or in the area. Safety precautions may be
required from the personnel. Avoid any alterations to the equipment. Such alterations may produce a very
dangerous situation where SERIOUS INJURY or DEATH may occur.

This equipment shall be installed in accordance with the current installation codes and applicable
regulations, which should be carefully followed in all cases. Authorities having jurisdiction should be
consulted before installations are made.

PNEG-1785 NCHT “X” Series Ladders 7

2. Safety

Prepare for Emergencies

Be prepared if fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctors, ambulance service,

hospital, and fire department near your telephone

Keep Emergency Equipment
Quickly Accessible

Wear Protective Clothing

Wear close-fitting clothing and safety equipment appropriate
to the job.

Remove all jewelry.

Tie long hair up and back.

Wear safety glasses at all times to protect eyes from debris.

Wear gloves to protect your hands from sharp edges on plastic
or steel parts.

Wear steel-toed boots to help protect your feet from falling
debris. Tuck in any loose or dangling shoestrings.

A respirator may be needed to prevent breathing potentially
toxic fumes and dust.

Wear a hard hat to help protect your head.

Wear appropriate fall protection equipment when working at
elevations greater than six feet (6').

Eye Protection

Gloves

Steel-Toed Boots

Respirator

Hard Hat

Fall Protection

8 PNEG-1785 NCHT “X” Series Ladders

2. Safety

Safety Sign-Off Sheet

As a requirement of O.S.H.A., it is necessary for the employer to train the employee in the safe operating
and safety procedures for this equipment. This sign-off sheet is provided for your convenience and
personal record keeping. All unqualified persons are to stay out of the work area at all times. It is strongly
recommended that another qualified person who knows the shut down procedure be in the area in the
event of an emergency.

Date Employee Name Supervisor Name

PNEG-1785 NCHT “X” Series Ladders 9

2. Safety

Proper Storage Grain Bin/Silo Materials Prior to Construction

Wet storage stain (rust) will develop when closely packed bundles of galvanized material, such as sidewall
and roof sheets, have moisture present. Inspect roof and sidewall bundles on arrival for any moisture. If
moisture is present, it must not be allowed to remain between the she ets. Separate the sheets or panels
immediately and wipe them down. Spray with a light oil or diesel fuel.

If possible, sidewall bundles, roof sheets and other closely packed galvanized materials should be stored
in a dry, climate controlled building. If outdoor storage is unavoidable, the materials should be stored so
that they are raised above the ground and vegetation. Any stacking an d spacing mat erials sho uld not be
corrosive or wet. Be sure to protect materials from the weather, but permit air movement around the
bundles if possible.

Storing roof bundles and sidewall sheets at a slight incline can also help minimize the presence of
moisture. Storing the bundles with the center of the dome up (like an arch) is one option for minimizing
moisture during storage. Sidewall bundles can also be stored on edge but must be secured so that they
do not fall over and cause injury.

If “white rust” or “wet storage stain” occurs, contact the manufacturer imme diately about ways to minimize
the adverse effect upon the galvanized coating.

10 PNEG-1785 NCHT “X” Series Ladders

3. Decals

Excessive vacuum (or pressure) may
damage roof. Use positive aeration
system. Make sure all roof vents are
open and unobstructed. Start roof
fans when supply fans are started.
Do not operate when conditions exist
that may cause roof vent icing.

DC-969

CAUTION

GSI Group, Inc. 217-226-4421

The manufacturer does not warrant any roof damage caused by excessive vacuum or internal
pressure from fans or other air moving systems. Adequate ventilation and/or “makeup air” devices
should be provided for all powered air handling systems. The manufacturer does n ot recommend
the use of downward flow systems (suction). Severe roof damage can result fro m any blockage of
air passages. Running fans during high humidity/cold weather conditions can cause air exhaust
or intake ports to freeze.

PNEG-1785 NCHT “X” Series Ladders 11

3. Decals

Rotating flighting will

kill or dismember.

Flowing material will

trap and suffocate.

Crusted material will

collapse and suffocate.

DANGER

Keep clear of all augers.

DO NOT ENTER this bin!

If you must enter the bin:

1. Shut off and lock out all power.

2. Use a safety harness and safety line.

3. Station another person outside the bin.

4. Avoid the center of the bin.

5. Wear proper breathing equipment or respirator.

Failure to heed these

warnings will result in

serious injury or death.

DC-GBC-1A

GSI GROUP, INC. 217-226-4421

ATTENTION: The decal shown below should be present on the outside of the door cover of the 2 ring,
24" porthole door cover and the roof manway cover. If a decal has been damaged or is missing in any of
these locations, contact the manufacturer for a free replacement decal.

GSI Decals

1004 E. Illinois St.
Assumption, IL. 62510
Phone: [phone]

12 PNEG-1785 NCHT “X” Series Ladders

3. Decals

WARNING

GSI GROUP, INC. 217-226-4421

1. Use CENTER FLOOR OUTLET ONLY until NO grain
remains above this outlet.

2. Side floor outlets to be used ONLY when above
condition is satisfied.

3. Lock all side floor outlets to avoid accidental
premature use.

4. See manufacturers instructions for proper use of
factory supplied sidedraw (wall) discharge systems.

UNLOADING INSTRUCTIONS:

Failure to heed these warnings

could result in serious injury, death,

structural damage or collapse of tank.

DC-GBC-2A

ATTENTION: The decal shown below should be present on the outside of the door cover of the 2 ring,
24" porthole door cover and the roof manway cover. If a decal has been damaged or is missing in any of
these locations, contact the manufacturer for a free replacement decal.

GSI Decals

1004 E. Illinois St.
Assumption, IL. 62510
Phone: [phone]

PNEG-1785 NCHT “X” Series Ladders 13

4. Assembly Instructions

Left Hand Ladder Assembly

1. Assemble platform brackets (STX-0082 and STX-0009) (C and A) to stiffeners. The outer two (2)
brackets (STX-0082 and STX-0009) (C and A) should sit inside of the stiffeners. The middle bracket
(LDR-5362) (B) should attach directly to the sidewall using 3/8" x 1-1/2" bin bolt (S-5060) (D) and
flange nut (S-9373) (E). Holes will need to be drilled in the sidewall sheet for this bracket. Different
stiffener hole patterns may occur between two (2) different bins. The top hole of the outer brackets
should start approximately 4" below the horizontal seam. (See Figure 4A.)

NOTE: All parts in the Figure 4A are the same between the 15'-21' and 24'-36' eave platforms.

The platform bracket of the side which the ladder is to come off of should line up with a
roof rib and a roof rafter if the tank roof includes roof rafters.

Figure 4A

Ref # Part # Description

A STX-0009 Platform Bracket
B LDR-5362 Platform Bracket
C STX-0082 Platform Bracket
D S-5060 3/8" x 1-1/2" Bin Bolt
E S-9373 3/8" Flange Nut
F S-455 3/8" x 1" Bin Bolt

14 PNEG-1785 NCHT “X” Series Ladders

2. Assemble substructure parts to platform brackets. (See Figure 4B.)

NOTE: Part # listed below for both 15'-21' and 24'-36' eave platforms.

4. Assembly Instructions

Figure 4B

Part #

Ref #

15'-21' 24'-36'

A LDR-5376 LDR-5356 Eave Platform Floor Support
B LDR-5370 LDR-5350 Eave Platform Short Angle
C LDR-5377 LDR-5355 Eave Platform Floor Support
D LDR-5353 LDR-5353 Eave Platform Floor Support
E LDR-5369 LDR-5349 Eave Platform Long Angle
F LDR-5349 LDR-5349 Eave Platform Long Angle
G LDR-5375 LDR-5354 Ea ve Platform Floor Support
H STX-0011 STX-0011 Platform End Short Angle

Description

PNEG-1785 NCHT “X” Series Ladders 15

4. Assembly Instructions

3. Assemble platform pans to substructure components using 5/16" x 3/4" truss head bolt (S-4303) (D)

and flange nut (S-3611) (E). (See Figure 4C.)

NOTE: Components for both 15'-21' and 24'-36' eave platforms are shown in Figure 4C.

Figure 4C

Part #

Ref #

15'-21' 24'-36'

A LDR-5367 LDR-5363 Eave Platform Pan Left
B LDR-5368 LDR-5364 Eave Platform Pan Right
C STX-0142 STX-0142 Eave Platform Toe Board
D S-4303 S-4303 5/16" x 3/4" Truss Head Bolt
E S-3611 S-3611 5/16" Flange Nut

Description

16 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

4. Attach middle platform bracket (LDR-5362) (A) to platform pans using 5/16" x 3/4" bin bolt (S-275)
(B) and flange nut (S-3611) (C). The same 5/16" hardware is used at every location where the
two (2) pans on the bottom side of the platform. (See Figure 4D.)

Figure 4D

Ref # Part # Description

A LDR-5362 Platform Bracket
B S-275 5/16" x 3/4" Bin B olt
C S-3611 5/16" Flange Nut

NOTE: Use same hardware at locations where the platform bracket does not bolt to the pans.

PNEG-1785 NCHT “X” Series Ladders 17

4. Assembly Instructions

5. Assemble all handrail posts to the platform assembly using 5/16" x 3/4" bin bolt (S-275) (F) and
flange nut (S-3611) (G). (See Figure 4E.)

Figure 4E

Part #

Ref #

15'-21' 24'-36'

A LDR-5371 LDR-5347 Eave Platform Corner Post
B LDR-5372 LDR-5348 Eave Platform Corner Post
C STX-0146 STX-0146 Eave Platform Inside Center Post
D STX-0015 STX-0015 Platform Corner Post
E LDR-5357 LDR-5351 Eave Platform Center Post
F S-275 S-275 5/16" x 3/4" Bin Bolt
G S-3611 S-3611 5/16" Flange Nut

Description

18 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

6. Attach all post supports to platform handrail posts and inner portion of platform end short angle using
5/16" x 3/4" bin bolt (S-275) and flange nut (S-3611). (See Figure 4F.)

NOTE: Supports mount to the inner portion of the platform substructure.

Figure 4F

Part #

Ref #

15'-21' 24'-36'

A LDR-5379 LDR-5361 Eave Platform Post Support
B LDR-5378 LDR-5358 Eave Platform Post Support (Hidden)
C LDR-5381 LDR-5360 Eave Platform Post Support
D LDR-5382 LDR-5359 Eave Platform Post Support
E S-275 S-275 5/16" x 3/4" Bin Bolt
F S-3611 S-3611 5/16" Flange Nut

Description

PNEG-1785 NCHT “X” Series Ladders 19

4. Assembly Instructions

7. Figure 4G shows the assembly of the platform handrails. These must be attached using
5/16" hardware.

a. Attach large and small intermediate handrails to platform posts using 5/16" x 3/4" bin bolt

(S-275) (C) and flange nut (S-3611) (D).

b. Attach long and short upper handrails to platform posts using 5/16" x 2" bolt (S-7877) (H) and

flange nut (S-3611) (D).

c. Attach short intermediate handrail to platform posts using 5/16" x 3/4" bin bolt (S-275) (C) and

flange nut (S-3611) (D).

d. Attach inside top handrail to platform posts using 5/16" x 2" bolt (S-7877) (H) and flange

nut (S-3611) (D).

Figure 4G

Ref #

A LDR-5366 LDR-5366 Short Intermediate Handrail
B STX-0147 STX-0147 Inside Top Handrail
C S-275 S-275 5/16" x 3/4" Bin Bolt
D S-3611 S-3611 5/16" Flange Nut
E LDR-4088 LDR-4088 Small Intermediate Handrail (Field Cut to Length)
F LDR-4087 LDR-4087 Large Intermediate Handrail (Field Cut to Length)
G STX-0038 STX-0038 Platform Handrail Short
H S-7877 S-7877 5/16" x 2" Flange Bolt

I LDR-5352 LDR-5352 Platform Handrail Long

J LDR-5374 LDR-5352 Platform Handrail Long

K Place self-drilling screw on bottom side at overlap.

15'-21' 24'-36'

Part #

Description

20 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

8. Figure 4H shows the assembly of the safety gate bracket (LDR-5185) (B) to the platform post and
the assembly of the safety gate (LDR-5218) (A) to the safety gate assembly. Use all four (4) holes
in each hinge to mount the safety gate.

Figure 4H

Ref # Part # Description

A LDR-5218 Safety Gate
B LDR-5185 Safety Gate Bracket

PNEG-1785 NCHT “X” Series Ladders 21

4. Assembly Instructions

9. Figure 4I shows the attachment of ladder standoff bracket to the platform bracket using 5/16" x 3/4"
bin bolt (S-275) (B) and flange nut (S-3611) (C) and the orientation of the two (2) standoff brackets.
Adjust length based upon the wall angle placement.

Part #

Ref #

15'-21' 24'-36'

A LDR-5357 LDR-5357 Ladder Standoff Bracket
B S-275 S-275 5/16" x 3/4" Bin Bolt
C S-3611 S-3611 5/16" Flange Nut

Figure 4I

Description

10. Figure 4J shows the attachment of the platform wall bracket to the standoff brackets using
5/16" x 3/4" bin bolt (S-275) (B) and flange nut (S-3611) (C).

Figure 4J

Ref #

A LDR-5174 LDR-5174 Platform Wall Bracket
B S-275 S-275 5/16" x 3/4" Bin Bolt
C S-3611 S-3611 5/16" Flange Nut

Part #

Description

15'-21' 24'-36'

22 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

11. Attach wall angle to the sidewall sheet using the hole 9-3/8" from the stiffener hole pattern with
3/8" hardware. Assemble the wall bracket to the wall angle using 3/8" x 1" bolt (S-7927) (A) and
nut (S-9373) (B) and tighten. Adjust connection of wall bracket to standoff bracket if needed. Also
adjust length of the standoff bracket if needed. (See Figure 4K.)

Figure 4K

Ref # Part # Description

A S-7927 3/8" x 1" Flange Bolt
B S-9373 3/8" Flange Nut
C LDR-5168 Ladder Sidewall Angle
D LDR-5169 Ladder Sidewall Bracket

PNEG-1785 NCHT “X” Series Ladders 23

4. Assembly Instructions

12. Assemble ladder standoff brackets to wall bracket using 5/16" x 3/4" bin bolt (S-275) (C) and
flange nut (S-3611) (D). (See Figure 4L.)

Figure 4L

Ref # Part # Description

A LDR-5177 Ladder Standoff Bracket - Right
B LDR-5178 Ladder Standoff Bracket - Left
C S-275 5/16" x 3/4" Bin Bolt
D S-3611 5/16" Flange Nut

24 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

13. Assemble narrow safety cage bracket, cage hoops and cage splice brackets to the ladder flares and
platform posts. This must all be assembled at the same time using 5/16" hardware. (See Figure 4M.)

a. Assemble safety cage hoop splices to the platform posts using 5/16" x 3/4" bin bolt (S-275) (E)

and flange nut (S-3611) (F) to handrails.

b. Assemble narrow safety cage brackets to formed ladder flare using 5/16" x 1-1/4" bolt (S-277)

(G) and flange nut (S-3611) (F). Attach safety cage hoops.

c. Assemble safety cage standard hoops, narrow safety cage brackets and formed ladder flare to

the safety cage hoop splices using 5/16" x 1-1/4" bolt (S-277) (G) and flange nut (S-3611) (F).

Figure 4M

Ref # Part # Description

A LDR-5167 Safety Cage Hoop Splice
B LDR-5164 Safety Cage Hoop Standard
C LDR-5163 Safety Cage Narrow Bracket
D LDR-5161 Formed Ladder Flare
E S-275 5/16" x 3/4" Bin Bolt
F S-3611 5/16" Flange Nut
G S-277 5/16" x 1-1/4" Flange Bolt

PNEG-1785 NCHT “X” Series Ladders 25

4. Assembly Instructions

14. Attach 4' ladder (4FOOTRF) (C) to ladder flares using 5/16" x 3/4" bin bolt (S-275) (A) and flange nut
(S-3611) (B). (See Figure 4N.)

Figure 4N

Ref # Part # Description

A S-275 5/16" x 3/4" Bin Bolt
B S-3611 Flange Nut
C 4FOOTRF 4' Ladder Section
D Second hole must be field drilled.

26 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

Right Hand Ladder Assembly

1. Figure 4O shows the assembly of the platform handrails. These must be attached using
5/16" hardware.

a. Attach large and small intermediate handrails to platform posts using 5/16" x 3/4" bin bolt

(S-275) (H) and flange nut (S-3611) (I).

b. Attach long and short upper handrails to platform posts using 5/16" x 2" bolt (S-7877) (J) and

flange nut (S-3611) (I).

c. Attach short intermediate handrail to platform posts using 5/16" x 3/4" bin bolt (S-275) (H) and

flange nut (S-3611) (I).

d. Attach inside top handrail to platform posts using 5/16" x 2" bolt (S-7877) (J) and flange

nut (S-3611) (I).

Figure 4O

Ref #

A STX-0038 STX-0038 Platform Handrail Short
B LDR-5375 LDR-5352 Platform Handrail Long
C STX-0147 STX-0147 Inside Top Handrail
D LDR-5366 LDR-5366 Short Intermediate Handrail
E LDR-5352 LDR-5352 Platform Handrail Long
F LDR-4088 LDR-4088 Small Intermediate Handrail (Field Cut to Length)
G LDR-4087 LDR-4087 Large Intermediate Handrai l (Field Cut to Length)
H S-275 S-275 5/16" x 3/4" Bin Bolt

I S-3611 S-3611 5/16" Flange Nut

J S-7877 S-7877 5/16" x 2" Flange Bolt

K Place self-drilling screw on bottom at overlap.

PNEG-1785 NCHT “X” Series Ladders 27

15'-21' 24'-36'

Part #

Description

4. Assembly Instructions

2. Figure 4P shows the attachment of ladder standoff bracket to the platform bracket 5/16" x 3/4" bin
bolt (S-275) (B) and flange nut (S-3611) (C) and the orientation of the two (2) standoff brackets.
Adjust length based upon the wall angle placement.

NOTE: Ladder standoff for both left and right hand ladders are sent with platform. Only use

LDR-5385 for the right hand ladder orientation.

Figure 4P

Part #

Ref #

15'-21' 24'-36'

A LDR-5385 LDR-5385 Ladder Standoff Bracket
B S-275 S-275 5/16" x 3/4" Bin Bolt
C S-3611 S-3611 5/16" Flange Nut

28 PNEG-1785 NCHT “X” Series Ladders

Description

4. Assembly Instructions

3. Figure 4Q shows the attachment of the platform wall bracket to the standoff brackets using
5/16" x 3/4" bin bolt (S-275) (B) and flange nut (S-3611) (C).

NOTE: Wall bracket (LDR-5173) (A) is for right hand ladder use only.

Figure 4Q

Part #

Ref #

15'-21' 24'-36'

A LDR-5173 LDR-5173 Platform Wall Bracket
B S-275 S-275 5/16" x 3/4" Bin Bolt

C S-3611 S-3611 5/16" Flange Nut

Description

PNEG-1785 NCHT “X” Series Ladders 29

4. Assembly Instructions

4. Attach wall angle to the sidewall sheet using the hole 9-3/8" for the platform with 3/8" hardware.
Assemble the wall bracket to the wall angle using 3/8" x 1" bolt (S-7927) (A) and nut (S-9373) (B)
and tighten. Adjust connection of wall bracket to standoff bracket if needed. Also adjust length of
standoff bracket if needed. (See Figure 4R.)

Figure 4R

Ref # Part # Description

A S-7927 3/8" x 1" Flange Bolt
B S-9373 3/8" Flange Nut
C LDR-5168 Ladder Sidewall Angle
D LDR-5173 Platform Wall Bracket

30 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

5. Assemble ladder standoff brackets to wall bracket using 5/16" x 3/4" bin bolt (S-275) (C) and
flange nut (S-3611) (D). (See Figure 4S.)

Figure 4S

Ref # Part # Description

A LDR-5177 Ladder Standoff Bracket - Right
B LDR-5178 Ladder Standoff Bracket - Left
C S-275 5/16" x 3/4" Bin Bolt
D S-3611 5/16" Flange Nut

PNEG-1785 NCHT “X” Series Ladders 31

4. Assembly Instructions

6. Assemble narrow safety cage bracket, cage hoops and cage splice brackets to the ladder flares and
platform posts. This must all be assembled at the same time using 5/16" hardware. (See Figure 4T.)

a. Assemble safety cage hoop splices to the platform posts using 5/16" x 3/4" bin bolt (S-275) (E)

and flange nut (S-3611) (F) to handrails.

b. Assemble narrow safety cage brackets to formed ladder flare using 5/16" x 1-1/4" bolt (S-277)

(G) and flange nut (S-3611) (F). Attach safety cage hoops.

c. Assemble safety cage standard hoops, narrow safety cage brackets and formed ladder flare to

the safety cage hoop splices using 5/16" x 1-1/4" bolt (S-277) (G) and flange nut (S-3611) (F).

Figure 4T

Ref # Part # Description

A LDR-5167 Safety Cage Hoop Splice
B LDR-5164 Safety Cage Hoop Standard
C LDR-5163 Safety Cage Narrow Bracket
D LDR-5161 Formed Ladder Flare
E S-275 5/16" x 3/4" Bin Bolt
F S-3611 5/16" Flange Nut
G S-277 5/16" x 1-1/4" Flange Bolt

32 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

7. Attach 4' ladder (4FOOTRF) (C) to ladder flares using 5/16" x 3/4" bin bolt (S-275) (A) and flange nut
(S-3611) (B). (See Figure 4U.)

Figure 4U

Ref # Part # Description

A S-275 5/16" x 3/4" Bin Bolt
B S-3611 5/16" Flange Nut
C 4FOOTRF 4' Ladder Section
D Second hole must be field drilled.

PNEG-1785 NCHT “X” Series Ladders 33

4. Assembly Instructions

8. Figure 4V shows attachment of platform brace to the platform bracket and to the sidewall sheet.
Attach platform brace to platform bracket using 5/16" x 3/4" bin bolt (S-275) (B) and flange nut

(S-3611) (C). Attach second wall brace to the first using 5/16" x 3/4" bin bolt (S-275) (B) and flange
nut (S-3611) (C). Attach second wall brace to sidewall sheet using 5/16" x 3/4" bin bolt (S-275) (B)
and flange nut (S-3611) (C).

Figure 4V

Ref # Part # Description

A LDR-5206 Platform Wall Brace
B S-275 5/16" x 3/4" Bin Bolt
C S-3611 5/16" Flange Nut

34 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

Ladder Safety Cage Sections

1. Attach safety cage bar (LDR-5199) (C) to safety cage hoop (B) using 5/16" x 3/4" bin bolt (S-275) (D)
and flange nut (S-3611) (E).

2. Attach LDR-5163 to LDR-5164 using 5/16" x 3/4" bin bolt (S-275) (D) and flange nut (S-3611) (E).

(See Figure 4W and Figure 4X.)

Figure 4W 3' Ladder Safety Cage Section

Ref # Part # Description

A LDR-5162 Safety Cage Hoop Bracket
B LDR-5164 Safe ty Cage Hoop
C LDR-5199 3' Safety Cage Bar
D S-275 5/16" x 3/4" Bin Bolt
E S-3611 5/16" Flange Nut
F LDR-5166 4' Safety Cage Bar

Figure 4X 4' Ladder Safety Cage Section

PNEG-1785 NCHT “X” Series Ladders 35

4. Assembly Instructions

Ladder Safety Bell Cage Sections

1. Attach safety cage bar to safety cage hoop using 5/16" x 3/4" bin bolt (S-275) (F) and flange nut
(S-3611) (G).

2. Attach safety cage hoop bracket to safety cage hoop using 5/16" x 3/4" bin bolt (S-275) (F) and
flange nut (S-3611) (G). (See Figure 4Y, Figure 4Z and Figure 4AA.)

Figure 4Y 2' Ladder Safety Bell Cage

Figure 4Z 3' Ladder Safety Bell Cage

Figure 4AA 4' Ladder Safety Bell Cage

Ref # Part # Description

A LDR-5170 Safety Cage Hoop
B LDR-5162 Safety Cage Bracket
C LDR-5171 2' Safety Cage Bar
D LDR-5199 3' Safety Cage Bar
E LDR-5166 4' Safety Cage Bar

F S-275 5/16" x 3/4" Bin Bolt

G S-3611 5/16" Flange Nut

36 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

1. The last ladder section at each intermediate platform and at the bottom may need to be cut off for
proper fit. (See Figure 4AB.)

2. Anchor the last ladder section to the intermediate platform with the ladder base using 5/16" x 3/4"
bin bolt (S-275) (C) and flange nut (S-3611) (D). You must drill the platform floor to attach the ladder
base to the platform. (See Figure 4AB.)

Figure 4AB

Ref # Part # Description

A 4FOOTRF 4' Roll Forme d Ladder

B LDR-5181 Ladder Base
C S-275 5/16" x 3/4" Bin Bolt
D S-3611 5/16" Flange Nut

PNEG-1785 NCHT “X” Series Ladders 37

4. Assembly Instructions

Ladder and Safety Cage Layout

Tank Ladder and Eave Platform

Item

4 Rings

5 Rings

6 Rings

7 Rings

8 Rings

9 Rings

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

11 Rings

10 Rings

12 Rings

13 Rings

14 Rings

15 Rings

16 Rings

17 Rings

18 Rings

19 Rings

20 Rings

21 Rings

22 Rings

Safety Cage 4' Section 2 2 2 3 3 3 4 4 4 5 5
Safety Cage 3' Section 00000000000
Bell Safety Cage - 2' 0 1 0 0 0 0 1 0 0 0 0
Bell Safety Cage - 3' 00011100011
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

Substructure Platform 45°

Item 15' 18' 21' 24' 27' 30' 36'

4' Ladder Section 3 4 4 5 5 5 6
Safety Cage 4' Section 1222334
Bell Safety Cage - 2' 0 1 0 0 1 0 0
Bell Safety Cage - 3' 0010001
Bell Safety Cage - 4' 1 0 0 1 0 1 0
Substructure Platform Package 1111111

Dimension C 148 168 182 200 218 234 274

Manway Platform 45°

Item 15' 18' 21' 24' 27' 30' 36'

4' Ladder Section 3 3 4 4 4 5 6
Safety Cage 4' Section 1122233
Bell Safety Cage - 2' 1 0 1 0 0 1 0
Bell Safety Cage - 3' 0001000
Bell Safety Cage - 4' 0 1 0 0 1 0 1
Substructure Platform Package 1111111

Dimension C 116 136 150 168 186 202 242

38 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

1. Assemble LDR-5340 to LDR-5341 and LDR-5343 using 1/2" x 2" bolt (S-7811) (G), 1/2" flat washer
(S-2120) (F), lock washer (S-236) (E) and nut (S-3729) (D). Finger tighten nut so that each
LDR-5341 can slide onto the column. Number of shims (LDR-5343) (C) depends on the column size.
Use enough shims make LDR-5341 as flat as possible. See Table for approximation for number of
shims. (See Figure 4AC.)

Figure 4AC

Ref # Part # Description

A LDR-5340 Top Plate Ladder Mount NCHT Substructure
B LDR-5341 Bottom Plate NCHT Ladder Mount
C LDR-5343 Shims
D S-3729 1/2" Flange Nut
E S-236 1/2" Lock Washer

F S-2120 1/2" Flat Washer
G S-7811 1/2" x 2" Flange Bolt
H Inner sets of vertical holes used for 15', 18', 21' and 27'.

I Outer sets of vertical holes used for 30' and 36'.

Approximate # of Shims (LDR-5343) for Standard Tank

Diameter Approximate # of Shims (LDR-5343)

15' 1
18' 2
21' 2
24' 3
27' 3
30' 3
36' 3

PNEG-1785 NCHT “X” Series Ladders 39

4. Assembly Instructions

Access Door Platform

1.

Figure 4AD

head bolt (S-4303) (F) and flange nut (S-3611) (G) at all the co nnection points. (Bin wall, compression
weldment, support columns and stiffeners hidden for clarity.)

shows the assembly of the platform supports and platform floor using 5/16" x 3/4" truss

Figure 4AD

Ref # Part # Description

A LDR-5172 Platform Pan
B LDR-5176 Support Brace
C LDR-5173 Platform Wall Bracket - Right
D LDR-5175 Platform Front Angle
E LDR-5174 Platform Wall Bracket - Left
F S-4303 5/16" x 3/4" Truss Head Bolt

G S-3611 5/16" Flange Nut

40 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

2. Figure 4AE shows the assembly of the platform post, handrail post, toe plate, upper and intermediate
handrail and platform corner posts. Toe kick and post must be assembled at the same time.

Attach intermediate handrails (small and large) to platform posts using 5/16" x 3/4" bin bolt (S-275)
(H) and flange nut (S-3611) (I).

Attach upper handrails (short and long) to platform post using 5/16" x 2" b olt (S-7877) (J) and flange
nut (S-3611) (I).

Attach handrail posts and platform posts to platform using 5/16" x 3/4" truss head bolt (S-4303) (K)
and flange nut (S-3611) (I).

Figure 4AE

Ref # Part # Description

A LDR-5183 Platform Post
B LDR-5184 Platform Post
C LDR-5339 Short Handrail
D LDR-5182 Long Handrail
E LDR-5179 Platform Post

F LDR-4088 Small Intermediate Handrail (Field Cut to Fit)
G LDR-4087 Large Intermediate Handrail (Field Cut to Fit)
H S-275 5/16" x 3/4" Bin Bolt

I S-3611 5/16" Flange Nut

J S-7877 5/16" x 2" Flange Bolt
K S-4303 5/16" x 3/4" Truss Head Bolt

L Place self-drilling screw on bottom at overlap.

PNEG-1785 NCHT “X” Series Ladders 41

4. Assembly Instructions

3. Figure 4AF shows assembly of wall angle to wall bracket and assembly of platform brace to
corner posts.

Attach wall angle (LDR-5168) (A) to wall bracket (LDR-5174) using 3/8" x 1" bolt (S-7927) (B) and
flange nut (S-9373) (C).

Attach platform brace to corner post using 5/16" x 3/4" bin bolt (S-275) (E) and flange nut
(S-3611) (F).

Attach 24" safety cage bar to platform posts and platform front angle using 5/16" x 3/4" bin bolt
(S-275) (E) and flange nut (S-3611) (F).

Figure 4AF

Ref # Part # Description

A LDR-5168 Wall Angl e
B S-7927 3/8" x 1" Flange Bolt
C S-9373 3/8" Flange Nut
D LDR-5338 Platform Brace - Right
E S-275 5/16" x 3/4" Bin Bolt
F S-3611 5/16 " Flange Nut

G LDR-5171 24" Safety Cage Bar

H LDR-5337 Platform Brace - Left

42 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

4. Figure 4AG shows attachment of intermediate platform door bracket to platform post. Also shown
attachment of safety gate to intermediate platform door bracket.

Attach safety gate to intermediate platform door bracket using 5/16" x 3/4" bin bolt (S-275) (C) and
flange nut (S-3611) (D). Attach using all four (4) holes in each hinge plate.

Attach intermediate platform door bracket to platform post using 5/16" x 3/4" bin bolt (S-275) (C) and
flange nut (S-3611) (D).

Figure 4AG

Ref # Part # Description

A LDR-5218 Safety Gate Assembly

B LDR-5185 Intermediate Platform Doo r Bracket
C S-275 5/16" x 3/4" Bin Bolt
D S-3611 5/16" Flange Nut

PNEG-1785 NCHT “X” Series Ladders 43

4. Assembly Instructions

5. Figure 4AH shows assembly of narrow safety cage bracket, cage hoops, cage splice brackets and
ladder flares to platform post.

NOTE: Make sure the ladder flares are vertical and parallel to the platform posts by adjusting the

splice brackets. The ladder should be square to the platform.

6. Figure 4AH shows attachment of intermediate platform ladder bracket to wall bracket.

NOTE: Do not mix up left and right intermediate platform ladder bracket.

Attach intermediate platform ladder bracket to wall bracket using 5/16" x 3/4" bin bolt (S-275) (G) and
flange nut (S-3611) (H).

Figure 4AH

Ref # Part # Description

A LDR-5164 Safety Cage Hoop

B LDR-5167 Safety Cage Hoop Splice
C LDR-5163 Safety Cage Narrow Bracket
D LDR-5161 Formed Ladder Flare

E LDR-5178 Intermediate Platform Ladder Bracket - Left

F LDR-5177 Intermediate Platform Ladder Bracket - Right
G S-275 5/16" x 3/4" Bin Bolt
H S-3611 5/16" Flange Nut

44 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

7. Figure 4AI shows the placement of the access door platform in relation to stiffeners.
Wall angle for mounting access door platform should be attached to the sidewall at holes 9-3/8"

to the right of the stiffener.
Do not attempt to mount the wall angle inside of the stiffener.

Figure 4AI

PNEG-1785 NCHT “X” Series Ladders 45

4. Assembly Instructions

8. Place top of clamp assembly at reference dimension 27-15/16" below the horizontal seam. Attach
access door platform to bin wall using the first hole 9-3/8" to the right of the stiffener. Adjust clamp
assembly to meet platform brace. (See Figure 4AJ.)

Attach platform support bar (LDR-5338) (B) to clamp assembly using 3/8" x 2-1/2" bolt (S-6762)
and flange nut (S-456). Use washer (S-7409) on bolt head and nut side of mounting structure.
DO NOT place nut onto bolt under C-channel (LDR-5342) (C) is mounted to the backside of the
clamp assembly.

Attach platform support bar (LDR-5337) (A) to C-channel (LDR-5342) (C) using 3/8" x 1" bolt (S-7927)
and flange nut (S-456). Use washer (S-7409) on bolt head side of C-channel (LDR-5342) (C).

Figure 4AJ

Ref # Part # Description

A LDR-5337 Platform Support Bar

B LDR-5338 Platform Support Bar
C LDR-5342 C-Channel
DClamp Assembly

E 27-15/16" Reference Dimension

F 32" Typical
G Compression Weldment

46 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

9. Mount C-channel (LDR-5342) (A) on both ends to clamp assembly using middle bolt hole of clamp
assembly. The C-channel (LDR-5342) (A) is mounted to the inside of the columns using t he midd le
hole on the clamp assembly. (See Figure 4AK.)

Figure 4AK

Ref # Part # Description

A LDR-5342 C-Channel

PNEG-1785 NCHT “X” Series Ladders 47

4. Assembly Instructions

10. Place clamp assembly down the column every 32" center to center. Be sure to mount C-channel
before putting nut onto the middle bolt of the clamp assembly. Do not put clamps less than 32"
apart at the base of the column. 36" Column shown as example. (See Figure 4AL.)

Place first clamp assembly (center of middle hole) at 30-15/16" below horizontal seam for starting
point. Adjust to attach platform brace as needed.

Place clamp assembly down column with 32" spacing from center of middle hole to center of
middle hole.

* Reference dimension.

Figure 4AL

Ref # Part # Description

A LDR-5342 C-Channel
B Clamp Assembly

48 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

11. Attach each end of the wall angle (LDR-5168) (B) to C-channel (LDR-5342) (A) using 5/16" x 3/4"
bin bolt (S-275) (C) and flange nut (S-3611) (D). Use washer on bolt head side of C-channel
(LDR-5342) (A). (See Figure 4AM.)

NOTE: Do not use same hole as platform brace.

Figure 4AM

Ref # Part # Description

A LDR-5342 C-Channel

B LDR-5168 Ladder Sidewall Angle
C S-275 5/16" x 3/4" Bin Bolt
D S-3611 5/16" Flange Nut

PNEG-1785 NCHT “X” Series Ladders 49

4. Assembly Instructions

12. Figure 4AN shows assembly of wall bracket, wall bracket brace and ladder standoffs to wall angle.
Attach two (2) wall brackets (LDR-5169) (B) to first three (3) holes of wall angle (LDR-5168) (C) using

3/8" x 1" bolt (S-7927) (K) and flange nut (S-9373) (L).
Attach ladder wall bracket brace using 5/16" x 3/4" bin bolt (S-275) (H) and flange nut (S-3611) (I).
Attach ladder standoff to wedge using 5/16" x 1" carriage bolt (S-3550) (J) and flange nut (S-3611) (I).

Figure 4AN

Ref # Part # Description

A 4FOOTRF 4' Roll Formed Lad der
B LDR-5169 Ladder Sidewall Bracket
C LDR-5168 Ladder Sidewall Angle
D LDR-5197 Ladder Bracket Wall Brace
E LDR-4314 Ladder Standoff
F LDR-4198 Ladder Standoff Wedge

G LDR-4317 Ladder Section Splice Plate

H S-275 5/16" x 3/4" Bin Bolt

I S-3611 5/16" Flange Nut

J S-3550 5/16" x 1" Carriage Bolt

K S-7927 3/8" x 1" Flange Bolt

L S-9373 3/8" Flange Nut

50 PNEG-1785 NCHT “X” Series Ladders

Right Hand Side Ladder Assembly

4. Assembly Instructions

Figure 4AO

Ref # Part # Description

A 4FOOTRF 4' Roll Formed Ladder
B LDR-5168 Ladder Sidewall Angle
C LDR-5197 Ladder Bracket Wall Brace
D LDR-5169 Ladder Sidewall Bracket
E LDR-4314 Ladder Standoff
F LDR-4198 Ladder Standoff Wedge

G LDR-4317 Ladder Section Splice Plate

PNEG-1785 NCHT “X” Series Ladders 51

4. Assembly Instructions

Ladder to Platform Mounting Details

1. Use special bracket LDR-5344 (B) on the last C-channel. Brackets must be assembled in the
orientation shown in Figure 4AP.

Attach LDR-5344 (B) to LDR-5168 (A) using the bottom two (2) holes of LDR-5168. Attach 3/8" x 1"
bolt (S-7927) (D) and flange nut (S-9373) (E).

Attach wall brace assembly (LDR-5197) to C-channel (LDR-5342) using 5/6" x 3/4" bin bolt
(S-275) (F) and flange nut (S-3611) (G).

Assemble together two (2) wall braces (LDR-5197) using 5/16" x 3/4" bin bolt (S-275) (F) and
flange nut (S-3611) (G). Only connect in two (2) holes.

Attach wall brace (LDR-5197) to ladder bracket (LDR-5344) (B) using 5/16" x 3/4" bin bolt
(S-275) (F) and flange nut (S-3611) (G).

Attach ladder standoff (LDR-5143) to ladder bracket (LDR-5169) (C) using 5/16" x 3/4" bin bolt
(S-275) (F) and flange nut (S-3611) (G).

NOTE: Bracket must be placed in same orientation as the figure.

Figure 4AP

Ref # Part # Description

A LDR-5168 Ladder Side wall Angle
B LDR-5344 Ladder Bracket
C LDR-5169 Ladder Bracket
D S-7927 3/8" x 1" Flange Bolt
E S-9373 3/8" Flange Nut
F S-275 5/16" x 3/4" Bin Bolt

G S-3611 5/16" Flange Nut

52 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

2. Attach ladder section to LDR-5161 using 5/16" x 1" bolt (S-277) (A) and flange nut (S-3611) (B).
Field drill second hole in ladder section.

Attach ladder section to ladder standoff bracket using 5/16" x 3/4" bin bolt (S-275) (C) and flange nut
(S-3611) (B).

NOTE: Sidewall, stiffeners, columns and bracing compression weldments hidden for clarity of image.

(See Figure 4AQ.)

Figure 4AQ

Ref # Part # Description

A S-277 5/16" x 1" Flange Bolt
B S-3611 5/16" Flange Nut
C S-275 5/16" x 3/4" Bin Bolt

PNEG-1785 NCHT “X” Series Ladders 53

4. Assembly Instructions

Ladder Splice Detail

Figure 4AR

Ref # Part # Description

A 4FOOTRF 4' Roll Formed Ladder
B LDR-4317 Ladder Section Splice Plate

54 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

Substructure Platform

1. Attach the wall angle to the sidewall sheet using 3/8" hardware. Assemble the left and right
intermediate platform brackets to the wall angles using 3/8" x 1" bolt (S-7927) (K) and nut
(S-9373) (L). (See Figure 4AS.)

NOTE: Leave all hardware loose until completely assembled.

Assemble the platform to the front and back angles and platform brackets using the 5/16" x 3/4" truss
head bolt (S-4303) (O) and flange nut (S-3611) (N). Using 5/16" hardware, assemble the posts.

Attach all handrail posts to platform using 5/16" x 3/4" bin bolt (S-275) (M) and flange nut (S-3611) (N).

Figure 4AS

Ref # Part # Description Ref # Part # Description

A LDR-5183 Intermediate Platform Back Post - Left I LDR-5174 Intermediate Platform Bracket - Left
B LDR-5184 Intermediate Platform Back Post - Right J LDR-5168 Ladder Sidewall Angle
C LDR-5172 Ladder Intermediate Platform K S-7927 3/8" x 1" Flange Bolt
D LDR-5179 Intermediate Platform Front Post L S-9373 3/8" Fla nge Nut
E LDR-5180 Intermediate Platform Front Toe Board M S-275 5/16" x 3/4" Bin Bolt
F STX-0138 “X” Series Eave Platform Middle Angle N S-3611 5/16" Flange Nut
G LDR-5175 Intermediate Platform Front Angle O S-4303 5/16" x 3/4" Truss Head Bolt
H LDR-5173 Intermediate Platform Bracket - Right

PNEG-1785 NCHT “X” Series Ladders 55

4. Assembly Instructions

2. Assemble the platform wall brace to the intermediate platform front posts and wall angles using
5/16" x 3/4" bin bolt (S-275) (H) and flange nut (S-3611) (F). (See Figure 4AT.)

Attach intermediate (large and small) handrail to handrail post using 5/16" x 3/4" bin bolt (S-275) (H)
and flange nut (S-3611) (F).

Attach upper handrails to platform post using 5/16" x 2" bolt (S-7877) (E) and flange nut (S-3611) (F).
Attach the platform gate bracket to the gate before attaching it to the platform back post with

5/16" x 3/4" bin bolt (S-275) (H) and flange nut (S-3611) (F).
Attach safety gate assembly to intermediate platform door bracket using 5/16" x 3/4" bin bolt (S-275)

(H) and flange nut (S-3611) (F).

Figure 4AT

Ref # Part # Description Ref # Part # Description

A LDR-5179 Intermediate Platform Front Post H S-275 5/16" x 3/4" Bin Bolt
B LDR-5182 Intermediate Platform Top Handrail I LDR-5185 Intermediate Platform Door Bracket
C LDR-4088 Small Intermediate Handrail J LDR-5183 Intermediate Platform Back Post - Left
D LDR-4087 Large Intermediate Handrail
E S-7877 5/16" x 2" Flange Bolt L LDR-5168 Ladder Sidewall Angle
F S-3611 5/16" Flange Nut
G LDR-5218 Ladder Safety Gate N LDR-5173 Intermediate Platform Bracket - Right

56 PNEG-1785 NCHT “X” Series Ladders

K LDR-5174 Intermediate Platform Bracket - Left

M LDR-5206 Eave Platform Wall Brace

4. Assembly Instructions

3. Assemble the safety cage bars (knee brace) to the posts and front and back angles using
5/16" hardware. (See Figure 4AU.)

NOTE: Make sure the intermediate platform is level before tightening hardware.

Figure 4AU

Ref # Part # Description

A LDR-5171 24" Safety Cage Bar
B LDR-5183 Intermediate Platform Back Post - Left
C LDR-5184 Intermed iate Platform Back Post - Right
D LDR-5179 Intermediate Platform Front Post
E LDR-5175 Intermediate Platform Front Angle

PNEG-1785 NCHT “X” Series Ladders 57

4. Assembly Instructions

4. Assemble the ladder and ladder brackets to the intermediate platform bracket using 5/16" x 3/4"
bin bolt (S-275) (E) and flange nut (S-3611) (F).

NOTE: The top ladder rung must be level with the platform floor. (See Figure 4AV.)

Figure 4AV

Ref # Part # Description

A 4FOOTRF 4' Roll Formed Ladder
B LDR-5178 Intermediate Platform Ladder Bracket - Left
C LDR-5177 Intermediate Platform Ladder Bracket - Right
D LDR-5174 Platform Wall Bracket - Left
E S-275 5/16" x 3/4" Bin Bolt
F S-3611 5/16" Flange Nut

58 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

5. Attach the ladder flare to the ladder using 5/16" x 3/4" bin bolt (S-275) (E) and flange nut (S-3611)
(F). You must drill the bottom hole through the ladder and use 5/16" hardware. (See Figure 4AW.)

Attach the narrow safety cage bracket, cage hoops and cage splice brackets to the ladder flares and
platform posts. This must all be assembled at the same time using 5/16" hardware.

NOTE: Make sure the ladder flares are v ertical and parallel to the platform posts by adjusting

the splice brackets. The ladder should be square to the platform.

Attach safety cage hoop splice to handrail post using 5/16" x 3/4" bin bolt (S-275) (E) and flange nut
(S-3611) (F).

Attach safety cage hoop splice to safety cage hoop using 5/16" x 3/4" bin bolt (S-275) (E) and flange
nut (S-3611) (F).

Attach safety cage narrow bracket to formed ladder flare using 5/16" x 1-1/4" bolt (S-277) (G) and
flange nut (S-3611) (F).

Figure 4AW

Ref # Part # Description Ref # Part # Description

A LDR-5167 Safety Cage Hoop Splice G S-277 5/16" x 1-1/4" Flange Bolt
B LDR-5164 Safety Cage Hoop Standard
C LDR-5163 Safety Cage Narrow Bracket I LDR-5178 Interme diate Platform Ladder bracket - Left
D LDR-5161 Formed Ladder Flare
E S-275 5/16" x 3/4" Bin Bolt K LDR-5174 Platform Wall Bracket - Left
F S-3611 5/16" Flange Nut

PNEG-1785 NCHT “X” Series Ladders 59

H 4FOOTRF 4' Roll Formed Ladder

J LDR-5177 Intermediate Platform Ladder bracket - Right

4. Assembly Instructions

6. Figure 4AX shows the placement of the access door platform in relation to stiffeners.
Wall angle for mounting the substructure platform should be attached to the sidewall at holes 9-3/8"

to the left of the stiffener holes.
Do not attempt to mount the wall angle inside of the stiffener.

Figure 4AX

60 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

7. Place clamp assembly down the column every 32" center to center. Be sure to mount C-channel
before putting nut onto the middle bolt of the clamp assembly. Do not put clamps less than 32" apart
at the base of the column. 36" Column shown as example. (See Figure 4AY.)

NOTE: * Reference dimension. For starting clamp assembly for substructure ladder mounting.
NOTE: Place clamp assembly down column with 32" spacing from center of middle hole to center of

middle hole.

Figure 4AY

Ref # Part # Description

A LDR-5342 C-Channel
B Clamp Assembly

PNEG-1785 NCHT “X” Series Ladders 61

4. Assembly Instructions

8. Attach wall angle on both ends to C-channel using 5/16" x 3/4" bin bolt (S-275) (C) and flange nut
(S-3611) (D). Use washer on bolt head side of channel. (See Figure 4AZ.)

Figure 4AZ

Ref # Part # Descriptio n

A LDR-5342 C-Channel

B LDR-5168 Ladder Sidewall Angle
C S-275 5/16" x 3/4" Bin Bolt
D S-3611 5/16" Flange Nut

62 PNEG-1785 NCHT “X” Series Ladders

4. Assembly Instructions

9. Figure 4BA shows assembly of wall bracket, wall bracket brace and ladder standoff to wall angle.
Attach two (2) wall brackets (LDR-5169) (B) to first three (3) holes of wall angle (LDR-5168) (C) using

3/8" x 1" bolt (S-7927) (K) and flange nut (S-9373) (L).
Attach ladder wall bracket brace using 5/16" x 3/4" bin bolt (S-275) (H) and flange nut (S-3611) (I).
Attach ladder standoff to wedge using 5/16" x 1" carriage bolt (S-3550) (J) and flange nut (S-3611) (I).

Figure 4BA

Ref # Part # Description

A 4FOOTRF 4' Roll Formed Ladder
B LDR-5169 Ladder Sidewall Bracket
C LDR-5168 Ladder Sidewall Angle
D LDR-5197 Ladder Bracket Wall Brace
E LDR-4314 Ladder Standoff
F LDR-4198 Ladder Standoff W edge

G LDR-4317 Ladder Section Splice Plate

H S-275 5/16" x 3/4" Bin Bolt

I S-3611 5/16" Flange Nut

J S-3550 5/16" x 1" Carriage Bolt

K S-7927 3/8" x 1" Flange Bolt

L S-9373 3/8" Flange Nut

PNEG-1785 NCHT “X” Series Ladders 63

4. Assembly Instructions

10. Use special bracket (LDR-5344) (B) on the last C-channel bracket must be assembled in the
orientation shown in Figure 4BB.

Figure 4BB

Ref # Part # Description

A LDR-5169 Standard C-Channel Bracket
B LDR-5344 Special C-Channel Bracket. Orientate as shown.

64 PNEG-1785 NCHT “X” Series Ladders

Ladder Splice Detail

4. Assembly Instructions

Figure 4BC

Ref # Part # Description

A 4FOOTRF 4' Roll Formed Ladder
B LDR-4317 Ladder Section Splice Plate

PNEG-1785 NCHT “X” Series Ladders 65

NOTES

66 PNEG-1785 NCHT “X” Series Ladders

5. Warranty

9101239_1_CR_rev7.DOC (revised July 2009)

GSI Group, LLC Limited Warranty

The GSI Group, LLC (“GSI”) warrants products which it manufactures to be free of defects in materials and workmanship
under normal usage and conditions for a period of 12 months after sale to the original end-user or if a foreign sale,
14 months from arrival at port of discharge, whichever is earlier. The end-user’s sole remedy (and GSI’s only obligation)
is to repair or replace, at GSI’s option and expense, products that in GSI’s judgment, contain a material defect in materials
or workmanship. Expenses incurred by or on behalf of the end-user without prior written authorization from the GSI
Warranty Group shall be the sole responsibility of the end-user.

Warranty Extensions:

The Limited Warranty period is extended for the following products:

Product Warranty Period

Performer Series Direct Drive Fan Motor 3 Years

AP Fans and Flooring

Cumberland
Feeding/Watering
Systems

Grain Systems Grain Bin Structural Design 5 Years
Grain Systems

Farm Fans
Zimmerman

All Fiberglass Housings Lifetime
All Fiberglass Propellers Lifetime
Feeder System Pan Assemblies 5 Years **
Feed Tubes (1-3/4" and 2.00") 10 Years *
Centerless Augers 10 Years *
Watering Nipples 10 Years *

Portable and Tower Dryers 2 Years
Portable and Tower Dryer Frames and

Internal Infrastructure †

5 Years

* Warranty prorated from list price:
0 to 3 years - no cost to end-user
3 to 5 years - end-user pays 25%
5 to 7 years - end-user pays 50%
7 to 10 years - end-user pays 75%
** Warranty prorated from list price:
0 to 3 years - no cost to end-user
3 to 5 years - end-user pays 50%

† Motors, burner components

and moving parts not included.
Portable dryer screens included.
Tower dryer screens not included.

GSI further warrants that the portable and tower dryer frame and basket, excluding all auger and auger drive components,
shall be free from defects in materials for a period of time beginning on the twelfth (12
and continuing until the sixtieth (60

th

) month from the date of purchase (extended warranty period). During the extended

th

) month from the date of purchase

warranty period, GSI will replace the frame or basket components that prove to be defective under normal conditions of
use without charge, excluding the labor, transportation, and/or shipping costs incurred in the performance of this
extended warranty.

Conditions and Limitations:

THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE LIMITED WARRANTY DESCRIPTION SET FORTH
ABOVE. SPECIFICALLY, GSI MAKES NO FURTHER WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE OR USE IN CONNECTION WITH: (I) PRODUCT MANUFACTURED OR SOLD BY GSI OR (II) ANY ADVICE,
INSTRUCTION, RECOMMENDATION OR SUGGESTION PROVIDED BY AN AGENT, REPRESENTA TIVE OR
EMPLOYEE OF GSI REGARDING OR RELATED TO THE CONFIGURATION, INSTALLATION, LAYOUT, SUITABILITY
FOR A PARTICULAR PURPOSE, OR DESIGN OF SUCH PRODUCTS.

GSI shall not be liable for any direct, indirect, incidental or consequential damages, including, without limitation, loss of
anticipated profits or benefits. The sole and exclusive remedy is set forth in the Limited Warranty, which shall not exceed
the amount paid for the product purchased. This warranty is not transferable and applies only to the original end-user. GSI
shall have no obligation or responsibility for any representations or warranties made by or on behalf of any dealer, agent
or distributor.

GSI assumes no responsibility for claims resulting from construction defects or unauthorized modifications to products
which it manufactured. Modifications to products not specifically delineated in the manual accompanying the equipment at
initial sale will void the Limited Warranty.

This Limited Warranty shall not extend to products or parts which have been damaged by negligent use, misuse, alteration,
accident or which have been improperly/inadequately maintained. This Limited Warranty extends solely to products
manufactured by GSI.

Prior to installation, the end-user has the responsibility to comply with federal, state and local codes which apply to the
location and installation of products manufactured or sold by GSI.

PNEG-1785 NCHT “X” Series Ladders 67

This equipment shall be installed in accordance with

the current installation codes and applicable

regulations, which should be carefully followed in all

cases. Authorities having jurisdiction should be

consulted before installations are made.

GSI Group

1004 E. Illinois St.

Assumption, IL 62510-0020

Phone: [phone]

Fax: [phone]

www.gsiag.com

Copyright © 2013 by GSI Group
Printed in the USA

GSI is a worldwide brand of AGCO Corporation.

CN-308630