Vestil LAD-FM-PSO User manual

TABLE OF CONTENTS Rev. 9/30/2021 LAD-FM-PSO, MANUAL
TABLE OF CONTENTS Copyright 2021 Vestil Manufacturing Co. Page 1 of 21
LAD-FM-PSO Mezzanine Ladders
Receiving Instructions
After delivery, remove the packaging from the product. Inspect the product closely to determine
whether it sustained damage during transport. If damage is discovered, record a complete description
of it on the bill of lading. If the product is undamaged, discard the packaging.
NOTE: The end-user is solely responsible for confirming that product design, use, and maintenance
comply with laws, regulations, codes, and mandatory standards applied where the product is used.
Technical Service & Replacement Parts
For answers to questions not addressed in these instructions and to order replacement parts, labels,
and accessories, call our Technical Service and Parts Department at [phone]. The Department
can also be contacted online at https://www.vestil.com/page-parts-request.php.
Electronic Copies of Instruction Manuals
Additional copies of this instruction manual may be downloaded from https://www.vestil.com/page-
manuals.php.
Table of Contents
Page
Signal Words………………………………………………………………………………….……...………………
2
Safety Instructions……………………………….……………….……..…………….........................................
2 -3
Specifications…………….…………………..…………………………………...……………………….....…….
3
FIG. 1: LAD-FM-60-PSO Exploded View and Bill of Materials………………………………..………………
4
FIG. 2: LAD-FM-72-PSO Exploded View and Bill of Materials………………………………………..………
5
FIG. 3: LAD-FM-84-PSO Exploded View and Bill of Materials…………………………………..……………
6
FIG. 4: LAD-FM-96-PSO Exploded View and Bill of Materials……………………………..…………………
7
FIG. 5: LAD-FM-108-PSO Exploded View and Bill of Materials………………………………………………
8
FIG. 6: LAD-FM-120-PSO Exploded View and Bill of Materials………………………………………………
9
FIG. 7: Cable hoist, mounting bracket, cable grabber, and handheld controller……….……………
10
Assembly & Installation……….……………………………………………………………………...……………
10 - 17
Using the Mezzanine Ladder……………………………………………………………………………..………
17
Electrical Circuit Diagram…………….……………………...…………………………………………...………
18
Record of Satisfactory Condition………………………………………………………………………..………
19
Inspections & Maintenance…………………..………………………………………………………….………
19 - 20
Labeling Diagram……………………………………………………………………...…………………...………
20
Limited Warranty………………………………………………………………………...………………….………
21
Vestil Manufacturing Corp.
2999 North Wayne Street, P.O. Box 507, Angola, IN 46703
Telephone: [phone] -or-Toll Free [phone]
Fax: [phone]
Website: www.vestilmfg.com e-mail: [email protected]m

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SIGNAL WORDS
SIGNAL WORDS appear in this manual to draw the reader’s attention to important safety-related
messages. The following are signal words used in this manual and their definitions.
SAFETY INSTRUCTIONS
Vestil strives to identify foreseeable hazards associated with the use of its products. However, no
manual can address every conceivable risk that could arise from using a ladder. Always apply good
judgment while using this mezzanine ladder system.
WARNING
If this product is installed, used, or maintained improperly serious personal injuries or death might result.
•Read and understand the entire manual before installing, using, or servicing the product.Keep this
manual in a location known to persons who use the dock leveler. Read the manual whenever
necessary to refresh your understanding of proper use, inspection, and maintenance procedures.
•DO NOT exceed the capacity: 350 pounds (159kg). The total weight applied to the ladder (weight of
the user plus tools, etc.) must not be greater than the capacity. Capacity is provided on your
SPECIFICATIONS document as well as on label 1153. See LABELING DIAGRAM on p. 20.
•DO NOT use the stairway if any unusual noise or movement is observed while weight is applied to it. If
a malfunction occurs, remove the unit from service and notify your supervisor or maintenance personnel
about the issue. DO NOT return the ladder to service until qualified maintenance personnel determine
that it is in SATISFACTORY CONDITION. See RECORD OF SATISFACTORY CONDITION on p 19.
•DO NOT use the stairway UNLESS it is securely fastened to the mezzanine.
•DO NOT store articles on the stairs.
•DO NOT use this ladder unless you are in good health. NEVER use the ladder while under the influence
of alcohol or drugs, including prescription medication that affects balance, perception, or judgment.
•Wear appropriate footwear. DO NOT wear high-heeled shoes or footwear with smooth soles.
•DO NOT contact overhead objects with either your body or with the ladder during use.
•Avoid electrical shock! Avoid contact, or possible contact, with energized electrical lines while
installing, assembling, using, maintaining, or storing the ladder.
•Remove foreign matter, e.g. mud, from your shoes before walking on the ladder. Only wear slip-
resistant shoes.
•Only stand on the steps. DO NOT climb onto the railing. DO NOT slide on the railing.
•DO NOT access, or egress from, any step from an elevated location other than the mezzanine to
which the ladder is attached.
•ALWAYS face the stairs and use the handrails while ascending and descending the ladder.
•DO NOT increase the height of any step by standing on other objects placed on the ladder.
•Inspect the ladder as described in INSPECTIONS & MAINTENANCE on p. 19-20. DO NOT use the ladder
unless it is in SATISFACTORY CONDITION. ONLY use manufacturer-approved replacement parts to repair
the ladder.
•ONLY use the ladder to access the mezzanine to which the ladder is attached. DO NOT use the
ladder for any other purpose. DO NOT store materials and/or equipment on the steps.
•DO NOT lean, or reach, over the handrails or guardrails of the ladder. Overreaching could cause
instability and result in a fall. Avoid sudden shifts while on the ladder. DO NOT push, pull, or lean on the
handrails or guardrails.
•DO NOT skip steps. Climb the ladder one step at a time.
•DO NOT attempt to extend or retract the ladder while someone is using it. The ladder must be
unoccupied before it is moved.
DANGER
Identifies a hazardous situation which, if not avoided, WILL result in DEATH or
SERIOUS INJURY. Use of this signal word is limited to the most extreme situations.
WARNING
Identifies a hazardous situation which, if not avoided, COULD result in DEATH or
SERIOUS INJURY.
CAUTION
Indicates a hazardous situation which, if not avoided, COULD result in MINOR or
MODERATE injury.
NOTICE
Identifies practices likely to result in product/property damage, such as
operation that might damage the product.
!
!
!
!

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WARNING
•DO NOT ride on the ladder. Only climb the ladder when it is in the fully extended/lowered position. DO
NOT climb the ladder when it is retracted EVEN IF the floor lock is applied.
•DO NOT remove or obscure any label. Each label must be readable, undamaged, and present in the
appropriate location. See LABELING DIAGRAM on p. 20.
•DO NOT modify this ladder! Modifications automatically void the LIMITED WARRANTY on p. 21and
might make the ladder unsafe to use.
•Only locking fasteners should be used. During assembly, confirm that there are only locking nuts.
Contact TECHNICAL SERVICE (p. 1) if you find non-locking nuts. Lock nuts can only safely be used once.
Discard used lock nuts and install new lock nuts after unfastening any connection.
NOTICE
Proper installation, use, and maintenance are essential for this product to function properly.
oAlways use this product in accordance with the instructions in this manual.
oKeep the stairs clean & dry. Periodically lubricate pivot points.
SPECIFICATIONS
Documents that provide specifications for LAD-FM-##-PSO series ladders are available online to
anyone who visits Vestil’s website. Specifications include dimensions, net weight, and capacity
information. To access the appropriate specifications document, navigate to this webpage:
https://www.vestil.com/product.php?FID=611. Click the Product Specifications Table tab. Scroll the
page to the entry for the model you purchased, and click the button in the PDF column that looks like a
pencil inside a box. A PDF file will open. This file is the specifications document for your dock leveler. Print
a copy of the document and keep it with your copy of this manual. The following is an exemplar
specifications document for model LAD-FM-60-PSO.
!

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FIG. 1: LAD-FM-60 EXPLODED VIEW AND BILL OF MATERIALS (44-006-710)
Item
Part no.
Description
Qty.
Item
Part no.
Description
Qty.
1
44-516-038
WELDMENT, LADDER MOUNT
1
11
44-537-007
LOCK,FOOT LATCH,STORAGE
1
2 44-514-131
WELDMENT,MOUNTING LIFT
BRACKET
1 12 44-514-450 SUB-ASSEMBLY, MINI-CABLE HOIST 1
3
44-514-433
SUB-ASSEMBLY,FRAME
1
13
44-524-209
ASSEMBLY,HANDRAIL
2
4 11112 3/8-16 x 2 1/4 LONG HHCS 2 14 11107
HEX BOLT, GRADE A, ZINC FINISH,
3/8"-16 x 1-1/4"
4
5 37024
NYLON INSERT LOCK NUT,
GRADE 2, ZINC FINISH, 3/8"-16
8 15 33006
FLAT WASHER,ZINC PLATED,USS,
Ø5/16"
5
6
16-132-009
PP-4/1.25-W
2
16
27402
RHSMS #8-32 X 1" LG
2
7 11113
HEX BOLT, GRADE A, PLAIN
FINISH, 3/8"-16 X 2-1/2"
4 17 33074
SAE FLAT WASHER, Z-PLATED,
3/16" (#10)
4
8 33008
FLAT WASHER, LOW CARBON,
USS, ZINC PLATED, 3/8"
4 18 37012 #8-32 NYLOCK NUT Z PLATED 2
9 11118
HEX BOLT, GRADE A, ZINC
PLATED, 3/8-16 X 3 3/4"
4 19 44-516-036 BRACKET,WELDMENT,PIVOT MT. 2
10 36206
NUT, 3/8 - 16 JAM NUT, ZINC
FINISH
6

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FIG. 2: LAD-FM-72 EXPLODED VIEW AND BILL OF MATERIALS (44-006-711)
Item
Part no.
Description
Qty.
Item
Part no.
Description
Qty.
1 44-514-376
Weldment, frame, back
assembly
1 8 11113
Hex bolt, gr. A, plain finish, 3/
8
”-16
x 2
1
/2”
10
2 44-514-426 Weldment, frame, step, lower 1 9 37024
Nylock insert lock nut, gr. 2, zinc
finish,
3
/8”-16
16
3 44-112-010 Pin, main hinge 1 10 33008
Flat washer, low carbon, USS,
zinc plated,
3
/8”
12
4 16-132-009
4” x 1.25” poly-on-poly wheel,
PP-4/1.25-W
2 11 11115
Hex bolt, HHCS, #2, zinc plated,
3
/8”-16 x 3”
1
5 44-514-277
Weldment, frame, roller
bracket, right
1 12 36106
Hex nut, gr. A, zinc plated,
3
/
8
”-
16
1
6
44-016-081
Bracket, handrail mount
4
13
65127
Cotter pin, zinc plated,
3
/8” x 2”
2
7 44-524-093 Weldment, handrail hinge, right 1 14 11107
Hex bolt, gr. A, zinc finish, 3/
8
”-16
x 1
1
/4”
2

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FIG. 3: LAD-FM-84 EXPLODED VIEW AND BILL OF MATERIALS (44-006-712)
Item
Part no.
Description
Qty.
Item
Part no.
Description
Qty.
1 44-516-032 WELDMENT, LADDER MOUNT 1 8 33008
FLAT WASHER, LOW CARBON,
USS, ZINC PLATED, 3/8"
4
2 44-514-131
WELDMENT,MOUNTING LIFT
BRACKET
1 9 11118
HEX BOLT, GRADE A, ZINC
PLATED, 3/8-16 X 3 3/4"
4
3 44-514-439 SUB-ASSEMBLY,FRAME 1 10 36206
NUT, 3/8 - 16 JAM NUT, ZINC
FINISH
6
4
11112
3/8-16 x 2 1/4 LONG HHCS
2
11
44-537-007
LOCK,FOOT LATCH,STORAGE
1
5 37024
NYLON INSERT LOCK NUT,
GRADE 2, ZINC FINISH, 3/8"-16
4 12 44-514-450 SUB-ASSEMBLY, MINI-CABLE HOIST 1
6
16-132-009
PP-4/1.25-W
2
13
44-524-200
ASSEMBLY,HANDRAIL
2
7 11113
HEX BOLT, GRADE A, PLAIN
FINISH, 3/8"-16 X 2-1/2"
4 14 44-516-036 BRACKET,WELDMENT,PIVOT MT. 2

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FIG. 4: LAD-FM-96 EXPLODED VIEW AND BILL OF MATERIALS (44-006-713)
Item
Part no.
Description
Qty.
Item
Part no.
Description
Qty.
1 44-516-032 WELDMENT, LADDER MOUNT 1 8 33008
FLAT WASHER, LOW CARBON,
USS, ZINC PLATED, 3/8"
4
2 44-514-131
WELDMENT,MOUNTING LIFT
BRACKET
1 9 11118
HEX BOLT, GRADE A, ZINC
PLATED, 3/8-16 X 3 3/4"
4
3 44-514-442 SUB-ASSEMBLY,FRAME 1 10 36206
NUT, 3/8 - 16 JAM NUT, ZINC
FINISH
6
4
11112
3/8-16 x 2 1/4 LONG HHCS
2
11
44-537-007
LOCK,FOOT LATCH,STORAGE
1
5 37024
NYLON INSERT LOCK NUT,
GRADE 2, ZINC FINISH, 3/8"-16
4 12 44-514-450 SUB-ASSEMBLY, MINI-CABLE HOIST 1
6
16-132-009
PP-4/1.25-W
2
13
44-524-201
ASSEMBLY,HANDRAIL
2
7 11113
HEX BOLT, GRADE A, PLAIN
FINISH, 3/8"-16 X 2-1/2"
4 14 44-516-036 BRACKET,WELDMENT,PIVOT MT. 2

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FIG. 5: LAD-FM-108 EXPLODED VIEW AND BILL OF MATERIALS (44-006-714)
Item
Part no.
Description
Qty.
Item
Part no.
Description
Qty.
1 44-516-032 WELDMENT, LADDER MOUNT 1 8 33008
FLAT WASHER, LOW CARBON,
USS, ZINC PLATED, 3/8"
4
2 44-514-131
WELDMENT,MOUNTING LIFT
BRACKET
1 9 11118
HEX BOLT, GRADE A, ZINC
PLATED, 3/8-16 X 3 3/4"
6
3 44-514-445 SUB-ASSEMBLY,FRAME 1 10 36206
NUT, 3/8 - 16 JAM NUT, ZINC
FINISH
8
4
11112
3/8-16 x 2 1/4 LONG HHCS
2
11
44-537-007
LOCK,FOOT LATCH,STORAGE
1
5 37024
NYLON INSERT LOCK NUT,
GRADE 2, ZINC FINISH, 3/8"-16
4 12 44-514-450 SUB-ASSEMBLY, MINI-CABLE HOIST 1
6
16-132-009
PP-4/1.25-W
2
13
44-524-203
ASSEMBLY,HANDRAIL
2
7 11113
HEX BOLT, GRADE A, PLAIN
FINISH, 3/8"-16 X 2-1/2"
4 14 44-516-036 BRACKET,WELDMENT,PIVOT MT. 2

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FIG. 6: LAD-FM-120 EXPLODED VIEW AND BILL OF MATERIALS (44-006-715)
Item
Part no.
Description
Qty.
Item
Part no.
Description
Qty.
1 44-516-032 WELDMENT, LADDER MOUNT 1 8 11113
HEX BOLT, GRADE A, PLAIN
FINISH, 3/8"-16 X 2-1/2"
4
2 44-514-131
WELDMENT,MOUNTING LIFT
BRACKET
1 9 33008
FLAT WASHER, LOW CARBON,
USS, ZINC PLATED, 3/8"
4
3 44-514-448 SUB-ASSEMBLY,FRAME,STAIR 1 10 11118
HEX BOLT, GRADE A, ZINC
PLATED, 3/8-16 X 3 3/4"
6
4 44-524-205 ASSEMBLY,HANDRAIL 2 11 36206
NUT, 3/8 - 16 JAM NUT, ZINC
FINISH
8
5
11112
3/8-16 x 2 1/4 LONG HHCS
2
12
44-537-007
LOCK,FOOT LATCH,STORAGE
1
6 37024
NYLON INSERT LOCK NUT,
GRADE 2, ZINC FINISH, 3/8"-16
4 13 44-514-450
SUB-ASSEMBLY, MINI-CABLE
HOIST
1
7
16-132-009
PP-4/1.25-W
2
14
44-516-036
BRACKET,WELDMENT,PIVOT MT.
2

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FIG. 7: CABLE HOIST, MOUNTING BRACKET, CABLE GRABBER AND
HANDHELD CONTROLLER
ASSEMBLY & INSTALLATION
This folding mezzanine ladder system must be fastened securely to a wall or a walkway capable of
supporting AT LEAST the combined weight of the stairway plus a full capacity load of 350 pounds
(159kg). Refer to your SPECIFICATIONS document for the net weight of your ladder system.
Step 1: Select the location where the stairs will be installed.
D
Attachment location
Walkway / mezzanine
Guard rail
Press button forward
(UP direction): Causes
hoist to rewind cable
onto spool and raises
the ladder to its
retracted/storage
configuration
Press button in DOWN
direction: Causes
cable to unwind from
the spool and the
ladder extends/lowers
Handheld
controller
Cable
grabber
Floor
Cable
hoist
Cable hoist
mounting bracket
Formed
finger
Turn red button in direction
of arrows (clockwise) until
button pops up to activate
controller. Push button
down to deactivate
controller.
UP
DOWN

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Step 3: A) Fasten the ladder mount weldment (44-516-038) to the mezzanine using the 1/
2
” bolts
selected by your building engineer. Install but do not tighten the two bottom bolts. B) Align the bolt
slots in the mounting lift bracket (44-514-131) with the lower bolts (circled); then tighten the bolts. The
pulley arm must be inside the mounting lift bracket behind the retaining bar. C) Remove the shoulder
bolt shown in figure C.
Step 2: Use point D as the reference for determining the proper locations of bolt holes. The holes
drilled into the face of the mezzanine/walkway must match the relative locations of bolt holes in the
center mounting bracket (44-016-138) of the ladder mount weldment (44-516-038). Dimensions are
shown below.
Make a line that extends 8” on both sides of point D on the wall or mezzanine. The line must be
parallel to the floor. Next, draw a plumb line at both 8” marks (lines are labeled “a” and “b” in the
diagram above). Mark each plumb line 1½” and 61/2” below the level line. Bolt holes will be drilled at
all four points as shown above. The pre-drilled holes in the mounting frame are 5/8” (diameter). We
recommend using ½” (diameter) fasteners to connect the mounting plate to the wall or mezzanine.
Your building engineer should select hardware appropriate for the wall or mezzanine material and of
suitable length.
D
8in.
8in.
11/2
”
5”
a
b
Mezzanine
Ladder
mount
weldment
Mounting
lift bracket
Fasten mounting plate
to mezzanine with 1/2
”
hardware
Level
line
A
B
Bolt slot
Ladder
mount
weldment
(55-516-038)
Mounting
lift bracket
(44-514-131)
C
Remove
shoulder bolt
(26347)
Bolt slot
Pulley arm
Retaining arm

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Step 4: Install a latch pin weldment (44-514-456) near the bottom of each side rail of the lower step
weldment (6 steps; 44-514-441). Attach each latch pin weldment to a side rail with an 8-32 x 1” round
head machine screw (27402). Slide a #10 flat washer onto each screw. Insert a screw through the hole in
a side rail just beneath the first step and then through the matching bolt slot in the latch pin weldment.
Install another #10 flat washer onto the end of each screw. Install an 8-32 lock nut (37012) on each
screw. Leave the connections loose until wheels are installed in Step 5.
3/
8
” flat washer &
3
/8” – 16 x 2½” bolt
3/
8
” flat
washer &
3/8” - 16 lock
nut
Step 5: Attach the wheels to the side rails of the lower
step weldment. [NOTE: Models LAD-FM-60 and LAD-
FM-72 just have 1 step weldment.] Slide a 3/8” flat
washer (33008) onto each of two 3/8” – 16 x 2½” bolts
(11113). Insert a bolt through the center of each wheel
(16-132-009), through the hole in the bottom of each
side rail, and finally through the bolt hole in the
bottom of the corresponding latch pin weldment.
Secure each bolt with another flat washer and a 3/8” -
16 lock nut (37024).
Step 6: [This assembly step does not apply to models LAD-FM-60-PSO or LAD-FM-72-PSO.] Assemble the
stairs. Fasten the top step weldment to the lower step weldment using 2 side stiffeners and 3/8” hardware
as shown in the diagrams.
3/
8
” – 16 lock nut
(37024)
5/
16
” flat washer
(33006)
3
/
8
” – 16 x 1
1
/
4
” bolt
(11107)
Side stiffener
(44-014-544)
Side stiffener
Bolt
Lock
nut
Flat
washer
Wheel
Hole just below first step
Side rail
Bolt hole
for caster
bolt
Latch pin weldment
(44-514-456)
Bolt slot
8-32 x 1” machine screw
#10 flat washer
Bolt hole in side rail for caster bolt

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Step 7: Fasten the stairway to the ladder mount weldment.
a. Manually elevate the T-shaped cable pulley weldment until the main hinge pin (44-112-
010) is
accessible above the side guards.
b. Remove one or both of the washers and cotter pins (65127) from the hinge pin; then extract the hinge
pin.
c. Lift the top end of the stairway, e.g. with a hoist or a fork truck.
d. Align the pin holes in the side rail mounting brackets with the pin slots in the ladder mount bracket.
e. Align the hinge pin channel (of the cable pulley weldment) with the pin holes in the side rail mounting
brackets.
f.
Insert the main hinge pin through the pin slots, the side rail mounting brackets, and the pulley
weldment.
g. Reinstall the cotter pin(s) and washer(s) removed in step b.
Pin slot
c-f. Align pin
hole in side rail
mounting
bracket with
pin slot and pin
channel
Hole for cotter pin
Cotter pin
& washer
(not shown)
Side rail mounting
bracket
Main hinge pin
a. Elevate
cable pulle
y
weldment
b. Remove washer
& cotter pin
Hinge pin
Pin channel
REAR VIEW
Mezzanine
Pin slot
Main hinge pin
Pin channel
Side rail
mounting
bracket
Side guard
Side rail
mounting
bracket
Main hinge
pin
h. Carefully extend the ladder by controlling the base of the ladder as it rolls away from the mezzanine. Fully extent
the ladder so that the hinge pin rests on the bottoms of the pin slots
h. Extend/lower
ladder
Washer
Cotter
pin

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Step 9: Fasten rollers (44-027-001) to the left and right upper rail posts with 3/8” x 3/4” x 5/16” socket
head should bolts (26329) and corresponding 5/16” lock nuts. Attach upper rail posts and lower rail
posts to the handrail assemblies with 3/8”-16 x 21/4” bolts (11112) and 3/8”-16 lock nuts (37024).
Step 8: Assemble the handrails. Each handrail consists of 3 pieces: Upper rail (handle); handrail
linkage; and bottom handrail. Attach the handrail segments together with 3/8”-
16 x 21/4” bolts (11112)
and 3/8”-16 lock nuts (37024). Attach end aof the upper rail to end aof the handrail linkage; attach
end bof the bottom handrail to end bof the handrail linkage.
Upper rail
post
Bottom handrail
Handrail
linkage
Upper rail
(handle)
a
a
b
b
a
a
b
b
Upper rail
Handrail
linkage
Bottom
handrail
3/
8
”-16 x
2
1
/4” bolt
3/
8
”-16
lock nut
3
/
8
”-16 x
2
1
/4” bolt
3/
8
”-16
lock nut
Lower rail
post
Delrim
roller
Socket
head
shoulder
bolt &
lock nut
3
/8” – 16 x 2
1
/4” bolt
3/8” – 16 x 21/4” bolt
Attach lock nut
Upper
rail post
with
roller
Lower
rail post

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Step 10: a) Attach a pivot mount bracket (44-516-036) to each of the side rail mounting brackets as
shown in the following diagram. b) Attach a rail pivot bracket (44-516-035) to each side rail.
Step 11: Attach the handrail assemblies made in step 9 to the siderails. To make connections band
c, set rollers on roller receivers and slide the spacers welded onto the upper and lower rail posts onto
the 3/8”-16 x 33/4” bolts installed in the brackets in step 10. Tighten 3/8”-16 jam nuts (36206) on the ends of the
bolts. Use 3/8” – 16 x 21/4” bolts (11112) and 3/8” -16 lock nuts (37024) to make attachment a.
Welded
spacer
Mezzanine
Pivot mount bracket
Rail pivot bracket
3/
8
”-16 x 21/
2
” bolt +
3/8-16 lock nut (36206)
3/
8
”-16 x 3
3
/
4
”
bolt (11118))
3/
8
”-16 x 33/
4
” bolt
(11118)
3/
8
”-16 x 1
1
/
4
” bolt (11107)
+
3
/8-16 lock nut (37024)
3/
8
”-16 x 11/
4
” bolt
(11107)+
3/8-16 lock
nut (37024)
Handrail assembly
a
b
c
a
b
c
Welded
spacer
3
/8” – 16 x 2
1
/4” bolt
3
/
8
” – 16 jam nut
3/8” – 16 jam nut
a
b
Roller
receiver

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TABLE OF CONTENTS Copyright 2021 Vestil Manufacturing Co. Page 16 of 21
Step 12: Attach the limit switch (01-022-021) to the mounting lift bracket. See Step 3 on p. 11. The
limit switch is connected to a yellow electrical cord. It attaches to the mounting lift bracket via two
(2) M4 x 45mm screws. Attach the free end of the yellow cord from the limit switch to the free end of
the yellow cord from the junction box.
Step 13: Install the cable hoist. A) The hoist attaches to a formed mounting bracket (44-016-123) with 4
metric machine screws. The screws are wound into bolt holes in the bottom of the winch. Remove the
screws. Set the hoist on top of the formed bracket. Align the bolt holes in the bottom of the winch with
the bolt slots in the bracket. Install and tighten the screws. B) Connect the winch to the power source.
Plug the 3-prong adaptor at the end of the black power cord to a 115VAC power outlet. C) Twist the
red button on the handheld controller in the direction of the arrows on the button. The button should
pop up. The hoist will now respond to signals from the controller. A 3-position switch is located below
the red button on the controller. Pressing the switch forward causes the hoist spool to rotate and
cable to unwind from the hoist. Pressing the button back (and down) causes the spool to rotate in the
opposite direction which winds cable back onto the spool. Take hold of the cable hook and press the
button forward to unwind cable from the spool. Unwind approximately 10-12 feet of cable. D) Attach
the cable hook to a quick link (99-145-053). E) Feed cable to the left of the cable grabber (same side
as the bent fingers) and into the groove of pulley A. Reinstall the shoulder bolt removed during Step
3C on p. 11.Then, seat cable into the groove of pulley B. F) Attach the quick link to the small opening
on the right side of the limit switch lever (44-016-132). G) Move the hoist to a position where the cable
is substantially vertical. Mark the floor with the locations of the anchor bolt holes in the mounting
bracket. Attach the bracket to the floor using 3/8” anchor bolts of appropriate length as selected by
your building engineer.
Pulley A
Limit switch
Rear
view
Front view
Yellow electrical cord; connect free end
to yellow cord from junction box
M4 x 45mm
screw
M4 x 45mm
screw
Attach limit
switch here
Limit switch
installed
Align holes in
bottom of hoist
with bolt slots in
mounting
bracket and
attach with
machine screws
Bolt
slot
Cable hoist
To hoist
Limit switch lever
Cable
grabber
Anchor
bolt hole
Cable hoist
mounting bracket
Cable hook
Quick
link

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TABLE OF CONTENTS Copyright 2021 Vestil Manufacturing Co. Page 17 of 21
Step 14: Install the floor lock assembly (44-537-007). Press the 3-way control button forward and
raise/retract the ladder to the fully retracted position. Set the floor lock assembly on the floor next to
the ladder. Press the release lever down. Move the floor lock assembly to bring the locking peg into
the locking space between the release lever and the lock plate. Mark the floor with the locations of
the anchor bolt holes on the mounting plate. The bolt holes will accept 3/8” anchor bolts of
appropriate length as selected by your building engineer. Drill holes in the locations of the floor
marks and install anchoring hardware following the manufacturer’s instructions.
USING THE MEZZANINE LADDER
Review the SAFETY INSTRUCTIONS on p. 2-3 before using the ladder. Always grasp the handrails and
face the ladder when climbing or descending the steps. Inspect the ladder before each use for
damage, such as unusual wear, deterioration, or corrosion. Tighten loose nuts. If a lock nut has been
partially or completely unfastened, it must be replaced with a new lock nut.
To lower/extend the ladder from the raised/retracted position:
1. Stand beside the ladder at a location where you will avoid contact with it as it lowers but can easily
monitor it. Twist the red button on the handheld controller in the direction of the arrows until the
button pops up. See FIG. 7 on p. 10.
2. Press down on the release lever foot peg (see Step 14 on p. 17) of the floor lock to release the locking
peg (attached near the bottom of the ladder siderail) from the floor lock.
3. Grasp the segment of cable that extends from the hoist to pulley A and pull it toward you until the
limit switch lever lifts off of the limit switch. See Step 13 on p.16. The cable can either be pulled by
hand or by engaging the cable with the formed fingers of the cable grabber and pulling the cable
grabber away from the ladder.
4. Push the 3-way button on the hand control in the DOWN direction. See FIG. 7 on p. 10. Once the
ladder begins to move, gently release the cable.
5. Hold the button down until the ladder is completely lowered/extended.
6. Push the red button on the handheld controller down. The controller can be stored in the round tube
portion of the cable grabber.
To raise/retract the ladder:
1. Stand to the side of the ladder. Avoid contact with the ladder as it retracts.
2. Twist the red button on the handheld controller until it pops up.
3. Press the UP button on the handheld controller. Hold the button until the ladder retracts completely
and the locking peg seats into the floor lock.
4. Press the red button down and set the controller in the cable grabber.
Locking
peg
Release
lever
Lock plate
Release lever
foot peg
Locking space
Anchor
bolt
hole
Locking
peg
seated
inside
locking
space
Floor Lock

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TABLE OF CONTENTS Copyright 2021 Vestil Manufacturing Co. Page 18 of 21
ELECTRICAL CIRCUIT DIAGRAM (44124003)

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TABLE OF CONTENTS Copyright 2021 Vestil Manufacturing Co. Page 19 of 21
RECORD OF SATISFACTORY CONDITION
After assembling and installing the mezzanine ladder system, and before putting it into service, make
a detailed record of its appearance and operation. Include descriptions of the steps, wheels, hardware,
handrails, and cable hoist. Describe the connection of the ladder mount weldment to the mezzanine
(see Step 3 on p. 11). Operate the cable hoist to extend and retract the ladder. Include observations
about the process: how the hoist sounds as it operates; how the main hinge pin slides in the pin slots of
the ladder mount weldment; and how the handrails fold, especially the movement of the rollers into
and out of the roller receivers (see Step 11 on p. 15). Thoroughly photograph the ladder from multiple
angles. Include photographs of all labels. Collect all writings and photographs in a file. This file is a
record of the ladder system in satisfactory condition. Compare the results of all inspections to this
RECORD to determine if the ladder is in satisfactory condition. Do not use the ladder unless it is in
satisfactory condition.
INSPECTIONS & MAINTENANCE
Tag the ladder “Out of service” before inspecting and/or performing maintenance on it. Inspections
and maintenance should only be performed by qualified persons. Compare the results of each
inspection to the RECORD OF SATISFACTORY CONDITION. Do not use the ladder unless all parts are in
satisfactory condition. Replace parts that are not in satisfactory condition before returning the unit to
service. Only use manufacturer-approved replacement parts to restore the unit to satisfactory
condition. Never make temporary repairs of damaged or missing parts. DON’T GUESS! If you have any
questions about the condition of your ladder, contact the TECHNICAL SERVICE department. The phone
number is provided on the cover page of this manual.
Operate the cable hoist to put the ladder in the extended/use position before inspecting, or
performing maintenance on, the ladder.
INSPECTIONS
Before each use inspect the ladder for any sustained damage, such as unusual wear, deterioration, or
corrosion. Look for loose connections. Tighten all loose connections.
At least once per month, inspect the following:
1. Steps and siderails: Examine each step and both siderails for cracks, cracked welds, breaks,
significant wear, and rusting/corrosion. Remove rust/corrosion with steel wool or a steel bristle brush.
Clean and apply touchup paint to the affected areas.
2. Stairway mounting frame (see Step 3 on p. 11): Inspect the connections to the mezzanine. Make sure
that all hardware that attaches the ladder mount weldment to the mezzanine is securely fastened to
the mezzanine. Check the bolt holes for elongations, cracks, and corrosion or rusting. Examine the pin
slots for bends and damage that affects the travel of the main hinge pin. Remove corrosion. If cracks
are found, contact the manufacturer. The pin should slide smoothly and easily within the pin slots as the
ladder is extended or retracted.
3. Cable hoist and cable hoist mounting bracket (see FIG. 7 on p. 10): Inspect the bolts slots and the
bolt holes in the mounting bracket. Check for elongations, cracks, and corrosion. Examine the hoist
cable. Look for frays, birdcaging, cuts, and breaks. Operate the hoist to extend and retract the ladder.
Cable should smoothly unwind from, and wind back onto, the hoist spool.
4. Floor lock: Confirm that the lock is solidly anchored to the floor. Make sure that the lock functions
properly, i.e. the lock securely traps the locking peg inside the locking space. The spring should
automatically bias the lock release lever to the closed position.
5. Handrails: Closely examine all hardware/fasteners. Tighten loose connections. Check the handrails
for bends and cracks, particularly connections between handrail segments and connections to handrail
posts. Both handrails should be rigid and undamaged. Replace all damaged sections of the handrails
before returning the stair system to service.
6. Labels: The ladder should always be labeled as shown in the LABELING DIAGRAM. Replace a label if
it is missing, damaged, or not easily readable, e.g. faded.
MAINTENANCE
In addition to correcting issues discovered during inspections, maintain the ladder.
•Clean the ladder with a damp cloth to remove dirt and grime, especially from step surfaces. Let the
ladder dry completely before returning it to service.

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TABLE OF CONTENTS Copyright 2021 Vestil Manufacturing Co. Page 20 of 21
•Lubricate bolts as necessary for the rollers and spacers to rotate freely.
•Apply touchup paint wherever the finish is damaged. Apply touchup paint as soon as damage occurs.
LABELING DIAGRAM
Each unit should be labeled as shown in the diagram. However, label content and locations are
subject to change so your product might not be labeled exactly as shown. Compare the diagram
below to your RECORD OF SATISFACTORY CONDITION. If there are any differences between actual
labeling and this diagram, adapt the diagram to reflect actual labeling. Replace all labels that are
damaged, missing, or not easily readable (e.g. faded). To order replacement labels or to inquire
whether your unit is properly labeled, contact the technical service and parts department online at
http://www.vestilmfg.com/parts_info.htm or by calling [phone] and asking for the Parts
Department.
A
B
C
A: Label 821
B: Label 740
C: Label 1153