McGuire MEDLF Series User manual

Printed in U.S.A.
©2019 Systems, LLC - All Rights Reserved
Manual No. 4111-0026
Feb. 2019
MEDLF Series
Dock Leveler
A Division of Systems, LLC
McGuire • Division of Systems, LLC • W194 N11481 McCormick Drive • Germantown, WI 53022
800.624.8473 • fax: [phone] • www.wbmcguire.com • [email protected]
Owner’s/User’s Manual

Table of Contents
Page
Precautions
Recognize Precautionary Information ................................................ 1
General Operational Precautions........................................................ 1
Operational Precautions ...................................................................... 2
Safety Decals......................................................................................... 4
Placard ................................................................................................... 5
Owner’s/User’s Responsibilities ......................................................... 6
Introduction
General Information.............................................................................. 8
Component Identification..................................................................... 9
Installation
Installation Precautions ...................................................................... 10
Installation Overview ........................................................................... 11
Flush Mount - Weld On........................................................................ 12
Ramp Mount - Weld/Bolt On ............................................................... 14
Flush Mount - Bolt On ......................................................................... 16
Ramp Mount - Weld On w/Formed Angle .......................................... 18
Formed Angle....................................................................................... 20
Ramp and Face Plate........................................................................... 22
Placard Installation Instructions ........................................................ 24
Operation
Operational Precautions ..................................................................... 25
Operating Instructions ........................................................................ 26
Maintenance
Maintenance Precautions.................................................................... 28
Periodic Maintenance .......................................................................... 29
Adjustments
Spring Adjustment............................................................................... 30
Troubleshooting
Troubleshooting................................................................................... 31
Parts
MEDLF-Series....................................................................................... 32
Torsion Spring Assembly.................................................................... 34
Operating Links.................................................................................... 35
Bumpers .............................................................................................. 38
Miscellaneous
Customer Information ......................................................................... 41
Warranty................................................................................ Back Cover

1
4111-0026 — Feb. 2019
©2019 Systems, LLC
O
p
e
r
a
t
i
n
g
Z
o
n
e
O
p
e
r
a
t
i
n
g
Z
o
n
e
General Operational Precautions
Read and understand the Owner’s/User’s Manual and
become thoroughly familiar with the equipment and
its controls before operating the dock leveling device.
Never operate a dock leveler or transport vehicle
restraint while a safety device or guard is removed or
disconnected.
Never remove DANGER, WARNING, or CAUTION
signs, Placards or Decals on the equipment unless
replacing them.
Do not start the equipment until all unauthorized
personnel in the area have been warned and have
moved outside the operating zone (Figure 1).
Remove any tools or foreign objects from the
operating zone before starting.
Keep the operating zone free of obstacles that could
cause a person to trip or fall.
Figure 1
Recognize Precautionary Information
PRECAUTIONS
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to
cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Safety-Alert Symbol
The Safety-Alert Symbol is a graphic representation
intended to convey a safety message without the
use of words. When you see this symbol, be alert
to the possibility of death or serious injury. Follow
the instructions in the safety message panel.
The use of the word DANGER signifies the
presence of an extreme hazard or unsafe practice
which will most likely result in death or severe
injury.
The use of the word WARNING signifies the
presence of a serious hazard or unsafe practice
which could result in death or serious injury.
The use of the word CAUTION signifies possible
hazard or unsafe practice which could result in
minor or moderate injury.
The use of the word NOTICE indicates information
considered important, but not hazard-related, to
prevent machine or property damage.
Indicates a type of safety sign, or separate panel on
a safety sign, where safety-related instructions or
procedures are described.

24111-0026 — Feb. 2019
©2019 Systems, LLC
PRECAUTIONS
Operational Precautions
Learn the safe way to operate this equipment. Read and understand the
manufacturer’s instructions. If you have any questions, ask your supervisor.
Stay clear of dock leveling device when transport
vehicle is entering or leaving area.
Do not move or use the dock leveling device if
anyone is under or in front of it.
Keep hands and feet clear of pinch points. Avoid
putting any part of your body near moving parts.
Chock/restrain all transport vehicles. Never
remove the wheel chocks or release the
restraining device until loading or unloading is
finished, and transport driver has been given
permission to drive away.
Do not use a broken or damaged dock leveling
device or restraining device. Make sure proper
service and maintenance procedures have been
performed before using.
Make sure lip overlaps onto transport vehicle bed
at least 4 in. (102 mm).
Keep a safe distance from both side edges.

3
4111-0026 — Feb. 2019
©2019 Systems, LLC
PRECAUTIONS
Operational Precautions
Do not use dock leveling device if transport vehicle
is too high or too low.
Do not overload the dock leveling device.
Do not operate any equipment while under the
influence of alcohol or drugs.
Do not leave equipment or material unattended on
dock leveling device.

44111-0026 — Feb. 2019
©2019 Systems, LLC
Safety Decals
PRECAUTIONS
1.28"
2.43"
Control Box Size:
Decal Size: 2.75 x 1.25
File Name: 1751-0735
PROUDLY
MADEIN USA
SYSTEMS, INC.
GERMANTOWN, WI
MALVERN, AR
1751-0735
2
Unsupported dock leveler
ramps can lower unexpectedly.
Before allowing vehicle to leave
the dock always:
•
•
Ensure no equipment,
material or people are on
dock leveler.
Return dock leveler to its
stored position at dock level.
Failure to follow posted instructions will result in death or serious injury.
Call 262.255.1510 for replacement placards, warning labels, or owner’s/user’s manuals.
File Name: 1751-0730 Rev B
Decal Size: 9.12 x 3.25
MAINTENANCE/SERVICE
7. Stay clear of hinges and front and
sides of moving dock leveler.
8. N e v e r u s e d a m a g e d o r
malfunctioning dock leveler. Report
problems immediately to supervisor.
1. Read and follow all instructions,
w a r n i n g s a n d m a i n t e n a n c e
schedules in the owner‘s/user ‘s
manual.
2. Maintenance/Service of dock leveler
restricted to trained personnel.
3. Place barriers on the driveway and
dock floor to indicate service work is
being performed.
4. DO NOT ENTER PIT unless dock
leveler is securely supported by
maintenance prop.
5. If electrically powered turn off and use
OSHA lockout/tagout procedures.
OPERATION
1. Read and follow all instructions and
warnings in owner’s/user’s manual.
2. Use of dock leveler restricted to
trained operators
3. Always chock trailer wheels or
enga g e t r u ck restrai n t b e f o re
operating dock leveler or beginning to
load or unload.
4. Never use hands or equipment to
move ramp or lip
5. Before activating dock leveler:
Ensure trailer is backed in against
bumpers.
Remove any end loads if required.
Check trailer alignment to avoid lip
interference. If lip does not lower to
trailer bed, reposition vehicle.
6. Ensure truck bed supports extended
lip or leveler frame supports the ramp
before driving on ramp.
•
•
•
1751-0730 Rev B
Unsupported dock leveler
ramps can lower unexpectedly.
Before allowing vehicle to leave
the dock always:
•
•
Ensure no equipment,
material or people are on
dock leveler.
Return dock leveler to its
stored position at dock level.
Failure to follow posted instructions will result in death or serious injury.
Call 262.255.1510 for replacement placards, warning labels, or owner’s/user’s manuals.
File Name: 1751-0730 Rev B
Decal Size: 9.12 x 3.25
MAINTENANCE/SERVICE
7. Stay clear of hinges and front and
sides of moving dock leveler.
8. N e v e r u s e d a m a g e d o r
malfunctioning dock leveler. Report
problems immediately to supervisor.
1. Read and follow all instructions,
w a r n i n g s a n d m a i n t e n a n c e
schedules in the owner‘s/user ‘s
manual.
2. Maintenance/Service of dock leveler
restricted to trained personnel.
3. Place barriers on the driveway and
dock floor to indicate service work is
being performed.
4. DO NOT ENTER PIT unless dock
leveler is securely supported by
maintenance prop.
5. If electrically powered turn off and use
OSHA lockout/tagout procedures.
OPERATION
1. Read and follow all instructions and
warnings in owner’s/user’s manual.
2. Use of dock leveler restricted to
trained operators
3. Always chock trailer wheels or
enga g e t r u ck restrai n t b e f o re
operating dock leveler or beginning to
load or unload.
4. Never use hands or equipment to
move ramp or lip
5. Before activating dock leveler:
Ensure trailer is backed in against
bumpers.
Remove any end loads if required.
Check trailer alignment to avoid lip
interference. If lip does not lower to
trailer bed, reposition vehicle.
6. Ensure truck bed supports extended
lip or leveler frame supports the ramp
before driving on ramp.
•
•
•
1751-0730 Rev B
1751-0730
1
1
Decal Size: 4.3215 x 7.25
File Name: 1751-0763 Rev A
1751-0763 Rev A
Decal Placement
for LFMED
1751-0700
4
1751-0763
3
Left Bumper
Right Bumper
4
2
3
1
1
Serial Tag
LFMED SERIES
www.DockSystemsInc.com 1.800.643.5424
TM
Decal Size:6x2.4
File Name: 1751.0646
Figure 2

5
4111-0026 — Feb. 2019
©2019 Systems, LLC
Placard
PRECAUTIONS
NL, TS, MEDLF EDGE-OF-DOCK LEVELERS
NORMAL OPERATION
1. Grasp the captured operating handle and
raise to its full extended length. Then pull
handle toward you, rotating center plate
back past vertical.
2. Actuate the leveler by pushing forward on
handle against the rivet rotating leveler
out onto transport vehicle. The leveler will
lower until lip is resting on the transport
vehicle.
3. Return handle to the stored position.
STORING LEVELER
1. Extend the handle to its full extended
length, then pull handle toward you until
lip just clears the bed of the transport
vehicle.
2. Slowly allow handle to come forward until
leveler is lowered to the stored position.
3. Return handle to the stored position.
NOTE: If transport vehicle departs before
leveler is stored, leveler will automatically
return to stored position.
BELOW DOCK ENDLOADING
• Remove any endloads while leveler is in
the stored position.
RIVET
1751-0876 Rev D
OPERATING
INSTRUCTIONS
DANGER
• Read and follow all
instructions, warnings, and
maintenance schedules in
the manual and on placards.
• Operation and servicing of
dock leveler is restricted to
authorized personnel.
• Always chock transport vehicle wheels or engage vehicle restraint
and set parking brakes before operating dock leveler or beginning
to load or unload.
• Before activating dock leveler, check to make sure the transport
vehicle is positioned squarely against dock bumpers. Ensure lip will
avoid contact with transport vehicle frame, sides and cargo during
dock leveler activation. If contact is likely or observed, reposition
transport vehicle.
• Ensure the transport vehicle oor supports extended lip or the
leveler frame (lip keepers or below dock endload supports) supports
the ramp before driving on ramp.
• Stay clear of hinges and front and sides of moving dock leveler.
• Never use hands or equipment to move the ramp or lip.
• Never use damaged or malfunctioning dock leveler. Report problems
immediately to supervisor.
• Always store dock leveler and remove people, material, and
equipment from ramp before vehicle leaves the dock.
• DO NOT ENTER PIT unless dock leveler is securely supported
and proper lockout/tagout procedures have been completed. See
“Maintenance Precautions” in Owner’s/User’s Manual.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT
IN DEATH OR OTHER SERIOUS INJURY.
1.800.643.5424
Call for additional placards, or manuals, or with questions
regarding proper use, maintenance, and repair of dock leveler.
Scan to view our owner’s/user’s manuals online.
www.LoadingDockSystems.com
WARNING: CANCER AND REPRODUCTIVE HARM
www.P65Warnings.ca.gov
1751-0876

64111-0026 — Feb. 2019
©2019 Systems, LLC
1) The manufacturer shall provide to the initial
purchaser and make the following information
readily available to the owners/users and their
agents, all necessary information regarding
Safety Information, Operation, Installation and
Safety Precautions, Recommended Initial and
Periodic Inspections Procedures, Planned
Maintenance Schedule, Product Specifications,
Troubleshooting Guide, Parts Break Down,
Warranty Information, and Manufacturers
Contact Information, as well as tables to identify
the grade(slope) for all variations of length or
configuration of the dock leveling device and
information identifying the maximum uncontrolled
drop encountered when sudden removal of
support while in the working range of the
equipment.
2) When selecting loading dock safety equipment,
it is important to consider not only present
requirements but also future plans and any
possible adverse conditions, environmental
factors or usage. The owners/users shall provide
application information to the manufacturer
to receive recommendations on appropriate
equipment specifications and capacity.
3) The owner/user must see all nameplates,
placards, decals, instructions and posted
warnings are in place and legible and shall not
be obscured from the view of the operator or
maintenance personnel for whom such warnings
are intended for. Contact manufacturer for any
replacements.
4) Dock leveling devices may become hazardous
if the manufacturer’s instructions regarding
modifications or adjustments are not followed.
Modifications or alterations of dock leveling
devices shall only be made with prior written
approval from the original manufacturer. These
changes shall be in conformance with all
applicable provisions of the MH30.1 standard
and shall also satisfy all safety recommendations
of the original equipment manufacturer of the
particular application.
5) The owner/user should recognize the inherent
dangers of the interface between the loading
dock and the transport vehicle. The owner/ user
should, therefore, train and instruct all operators
in the safe operation and use of the loading dock
equipment in accordance with manufacturer’s
recommendations and industry standards.
Effective operator training should also focus on
the owner’s/user’s company policies, operating
conditions and the manufacturer’s specific
instructions provided with the dock leveling
device. Maintaining, updating and retraining all
operators on safe working habits and operation of
the equipment, regardless of previous experience,
should be done on a regular basis and should
include an understanding and familiarity with all
functions of the equipment. Owners/users shall
actively maintain, update and retrain all operators
on safe working habits and operations of the
equipment.
6) An operator training program should consist of,
but not necessarily be limited to, the following:
a) Select the operator carefully. Consider the
physical qualifications, job attitude and aptitude.
b) Assure that the operator reads and fully
understands the complete manufacturer’s owners/
users manual.
c) Emphasize the impact of proper operation
upon the operator, other personnel, material
being handled, and equipment. Cite all rules and
why they are formulated.
d) Describe the basic fundamentals of the dock
leveling device and components design as related
to safety, e.g., mechanical limitation, stability,
functionality, etc.
e) Introduce the equipment. Show the control
locations and demonstrate its functions.
Explain how they work when used properly and
maintained as well as problems when they are
used improperly.
f) Assure that the operator understands the
capacity rating, nameplate data, placards and all
precautionary information appearing on the dock
leveling device.
g) Supervise operator practice of equipment.
h) Develop and administer written and practical
performance tests. Evaluate progress during and
at completion of the course.
i) Administer periodic refresher courses. These
may be condensed versions of the primary course
and include on-the-job operator evaluation.
OWNER’S/USER’S RESPONSIBILITIES

7
4111-0026 — Feb. 2019
©2019 Systems, LLC
7) Loading dock safety equipment should never
be used outside of its vertical working range, or
outside the manufacturer’s rated capacity. It shall
also be compatible with the loading equipment
and other conditions related to dock activity.
Please consult the manufacturer if you have any
questions as to the use, vertical working range or
capacity of the equipment. Only properly trained
and authorized personnel should operate the
equipment.
8) It is recommended that the transport vehicle
is positioned as close as practical to the dock
leveling device and in contact with both bumpers.
When an industrial vehicle is driven on or off a
transport vehicle during loading and unloading
operations, the transport vehicle parking brakes
shall be applied and wheel chocks or a restraining
device that provides equal or better protection of
wheel chocks shall be engaged. Also, whenever
possible, air-ride suspension systems should have
the air exhausted prior to performing said loading
and unloading operations.
9) When goods are transferred between the loading
dock and a trailer resting on its support legs/
landing gear instead of a tractor fifth wheel
or converter dolly, it is recommended that an
adequate stabilizing device or devices shall be
utilized at the front of the trailer.
10) In order to be entitled to the benefits of the
standard product warranty, the dock safety
equipment must have been properly installed,
maintained and operated in accordance with
all manufacturer’s recommendations and/
or specified design parameters and not
otherwise have been subject to abuse, misuse,
misapplication, acts of nature, overloading,
unauthorized repair or modification, application in
a corrosive environment or lack of maintenance.
Periodic lubrication, adjustment and inspection
in accordance with all manufacturers’
recommendations are the sole responsibility of the
owner/user.
11) Manufacturer’s recommended maintenance and
inspection of all dock leveling devices shall be
performed in conformance with the following
practices: A planned maintenance schedule
program must be followed, only trained and
authorized personnel shall be permitted to
maintain, repair, adjust and inspect dock leveling
devices, and only the use of original equipment
manufacturer parts, manuals, maintenance
instructions, labels, decals and placards or
their equivalent. Written documentation of
maintenance, replacement parts or damage
should be kept. In the event of damage,
notification to the manufacturer is required.
12) Loading dock devices that are structurally
damaged or have experienced a sudden loss of
support while under load, such as might occur
when a transport vehicle is pulled out from under
the dock leveling device, shall be removed from
service, inspected by a manufacturer’s authorized
representative, and repaired or replaced as
needed or recommended by the manufacturer
before being placed back in service.
OWNER’S/USER’S RESPONSIBILITIES

84111-0026 — Feb. 2019
©2019 Systems, LLC
Technical Service at 800-643-5424 or [email protected]
This manual provides current information on the
MEDLF-series dock levelers (Figure 3). Due to
ongoing product improvement, some parts may have
changed, along with operation and troubleshooting
methods. This manual describes these changes
where applicable.
McGuire Edge-of-Dock Levelers mount directly to the
dock face and provide a recommended working range
of +/-3” and a maximum operating range of +/-5”
above or below dock.
Mechanically-operated edge-of-dock levelers are the
largest selling edge-of-dock levelers in the industry.
Careful engineering and rugged construction ensure
extended life. Operation is safe and easy.
MEDLF dock levelers are available in the sizes,
weight capacities, and options listed in the following
tables.
Call McGuire to discuss available options to meet your
specific needs.
Dimensions and Capacities
Model # - Deck - Total Unit
Width Width Comparative Industry Rating
MEDLF-66 66” 104”
MEDLF-72 72” 110”
MEDLF-78 78” 116”
MEDLF-84 84” 122”
20,000
25,000
30,000
35,000 (N/A for MEDLF-78 &
84)
INTRODUCTION
General Information
Figure 3

9
4111-0026 — Feb. 2019
©2019 Systems, LLC
Component Identification
Inspect package and all components. Report any missing or damaged items immediately
and note on the shipping Bill Of Lading (BOL).
INTRODUCTION
A — Lip Plate
B — Center Plate
C — Hinge Area
D — Lifting Lever
E — Extend Link Arm
F — Torsion Spring (TS only)
G — Bumper Blocks (2 used)
Figure 4
A
B
D
C
F
G
G
E

10 4111-0026 — Feb. 2019
©2019 Systems, LLC
Installation Precautions
INSTALLATION
DO NOT grind or weld if hydraulic fluid or other
flammable liquid is present on the surface to be
ground or welded.
DO NOT grind or weld if uncontained hydraulic fluid
or other flammable liquid is present. Stray sparks
can ignite spills or leaks near the work area. Always
clean up the oil leaks and spills before proceeding
with grinding or welding.
Always keep a fire extinguisher of the proper type
nearby when grinding or welding.
Post safety warnings and barricade the work
area at dock level and ground level to prevent
unauthorized use of the dock leveler before
installation has been completed.
Only trained installation professionals with the
proper equipment should install this product.
A hard hat or other applicable head protection
should always be worn when working under or
around a dock leveler.
Always stand clear of platform lip when working in
front of the dock leveler.
It is recommended and good safety practice to use
an additional means to support the dock platform
and lip anytime when physically working in front of
or under the dock leveler. This additional means
may include, but is not limited to a boom truck, fork
truck, stabilizing bar or equivalent.

11
4111-0026 — Feb. 2019
©2019 Systems, LLC
Installation Overview
INSTALLATION
Note: This is a generic overview of the installation steps required. See full installation
instructions on pages 12-24 for different installation types and all steps.
Figure 5
Springs must be adjusted after install to ensure
correct operation and preserve unit warranty.
Securely block or support ramp and lip when in
vertical positions. Lack of proper bracing can result
in ramp dropping during adjustment or installation.
ANCHOR BOLT
OR PLUG WELD

12 4111-0026 — Feb. 2019
©2019 Systems, LLC
A flush mount weld on application is used when an 8”
wide (minimum) embed channel is securely anchored
into the concrete at the dock edge, and the dock
height is adequate.
1. Remove all existing bumper material and
protruding objects from dock edge. Clean and
sweep dock edge free of debris and flammable
chemicals before installing unit.
2. At chosen location for Edge-of-Dock leveler,
locate the center of space and mark a point half
of the base plate width to the left and right.
3. Using a proper lifting device, raise and position
leveler on dock face with the top of the base
plate being 1/4” below the top of the embedded
channel. Position ends of base plate to match
up with marks made previously.
4. Tack weld base plate to dock steel on left hand
end of the leveler. Check right hand end of base
plate, ensure that end is against dock steel and
that the top of the base plate is still 1/4” below
the top of the embedded channel. Tack right
hand end to dock steel.
5. Position bump blocks out approximately 5/8”
from the edge of the inside flange of the bump
block to the end of the base plate. This will allow
for vertical welding of both the base plate and
the bump block flange back to the dock steel.
Top of the bump block cover plate should be
flush with the top of the embed channel. Tack
weld bump blocks to dock steel.
6. Check the positioning of the base plate and the
bump blocks.
7. Complete bumper install:
a. Apply continuous weld across top of each
bumper. Skip welding is acceptable to
prevent warpage, but complete weld must be
completed.
a. Plug weld mounting holes to imbed or drill
holes 5/8” dia. by 5” deep in concrete. Install
5/8 x 4-3/4 anchor bolts with washers.
8. Finish welding the base plate:
a. Weld the top of end base plate and first
hinge to imbed.
b. Weld top of each hinge tube to imbed.
c. Weld vertically along each end of base plate.
d. Plug weld all holes in base plate.
9. Installer must remove all welding slag, and
repaint welded areas.
10. Installer must adjust springs on all mechanical
Edge of Dock levelers to provide desired tension
for smooth operation. See page 30.
Flush Mount - Weld On
INSTALLATION

13
4111-0026 — Feb. 2019
©2019 Systems, LLC
Springs must be adjusted after install to ensure
correct operation and preserve unit warranty.
Securely block or support ramp and lip when in
vertical positions. Lack of proper bracing can result
in ramp dropping during adjustment or installation.
Flush Mount - Weld On (continued)
INSTALLATION
Note:
1. Top of base plate to be 1/4” below top of dock
floor and embedded channel to create level
transition when installation is complete.
2. Apply continuous bevel weld across both bumpers
and length of base plate.
Figure 6

14 4111-0026 — Feb. 2019
©2019 Systems, LLC
A ramp mount weld on application is used when
adequate dock steel is securely anchored in the
concrete at the dock edge, but the existing dock
height is too low and the dock leveler must be
installed above this height to correct this situation.
1. Remove all existing bumper material and
protruding objects from dock edge. Clean and
sweep dock edge free of debris and flammable
chemicals before installing unit.
2. At chosen location for Edge of Dock leveler,
locate the center of space and mark a point half
of the base plate width to the left and right.
3. At the points marked to each side of center,
measure and mark points 7 - 3/4” below dock
level less height the unit is to be raised to locate
bottom of base plate. This will locate the top of
the base plate X” above dock level.
4. Using a proper lifting device, raise and position
the leveler base plate to marked position. While
holding base plate tight against dock face, tack
weld securely to dock steel on left hand end
of leveler. Check right hand end of base plate,
ensure that end is against dock steel and that
the bottom of the base plate is even with the
marks made previously. Tack right hand end
to dock steel. Support unit until final welding is
ready to complete.
5. Position bump blocks out approximately 5/8” out
from the edge of the inside flange of the bump
block to the end of the base plate. Position the
top of the tread cover plate on the bump blocks
to be flush with the top of the base plate. Tack
weld bump blocks to dock steel.
6. Operate the leveler through operating cycle
check for binding. if binding occurs readjust
leveler.
7. Complete bumper install:
a. Apply continuous weld across top of each
bumper. Skip welding is acceptable to
prevent warpage, but complete weld must be
completed.
b. Plug weld mounting holes to imbed or drill
holes 5/8” dia. by 5” deep in concrete. Install
5/8 x 4-3/4 anchor bolts with washers.
8. Finish welding the base plate:
a. Weld the top of end base plate and first
hinge to imbed.
b. Weld top of each hinge tube to imbed.
c. Weld vertically along each end of base plate.
d. Fully plug weld all holes in base plate.
9. Place steel ramp plate in position, flush with top
backside of base plate. Mark along full length
of back edge of ramp plate. Slide ramp plate
forward over dock leveler the width of bushing
tool, approximately 2”.
10. Place bushing tool on marked line at each end
of ramp to ensure proper alignment at both
ends. A Skil Roto Hammer #736 or similar tool is
recommended.
11. Using the back edge of the ramp plate as a
guide, groove concrete approximately 3/4” deep
by 2” wide, and should be the entire length of
ramp plate.
12. Slide ramp plate back into position with the top
of the ramp plate flush with the top of the base
plate. Tack weld each end and center of ramp
plate to base plate.
13. Using ramp plate as a guide drill (9) 5/8” dia.
by 5” deep holes. Install anchor bolts per
manufacturers specifications, and tighten
securely. Weld anchor bolt nuts to ramp plate
using a 1/4” fillet weld all the way around the
nut. Cut off any portion of the anchor bolt
exposed through the nut, and plug weld around
the top of the nut to the anchor bolt. Ensure
the top of the nuts are well rounded for smooth
rollover.
14. Installer must remove all welding slag, and
repaint welded areas.
15. Installer must adjust springs on all mechanical
Edge of Dock levelers to provide desired tension
for smooth operation. See page 30.
Ramp Mount - Weld/Bolt On
INSTALLATION

15
4111-0026 — Feb. 2019
©2019 Systems, LLC
Figure 7
Note:
1. Top of base plate and bumper cover plate to
be flush with top of dock floor and embedded
channel.
2. Apply continuous bevel weld across both
bumpers and length of base plate.
3. To figure ramp plate length, need 12” ramp for
every 1-1/2” of rise to ramp.
Securely block or support ramp and lip when in
vertical positions. Lack of proper bracing can result
in ramp dropping during adjustment or installation.
Ramp Mount - Weld/Bolt On (continued)
INSTALLATION

16 4111-0026 — Feb. 2019
©2019 Systems, LLC
A flush mount bolt on application is used when there
is no steel on dock edge, and the dock height is
adequate. Additional steel ramp plate and bolting is
required with this type of installation.
1. Remove all existing bumper material and
protruding objects from dock edge. Clean and
sweep dock edge free of debris and flammable
chemicals before installing unit.
2. At chosen location for Edge of Dock leveler,
locate the center of space and mark a point half
of the base plate width to the left and right.
3. At the points marked to each side of center,
measure and mark points 7-1/2” below dock
level (for 1/4” ramp plate) to locate position for
bottom of base plate. This position will place the
top of the base plate 1/4” above the dock floor.
This position will vary with ramp plate thickness.
4. Mark line connecting these points and position
support angles. Position angles as shown in
installation drawing provided. Mark center of
holes in each of the support angles.
5. At center marks, drill holes 5/8” dial. by 5” deep
in concrete. Install anchor bolts with washers
through support angles into holes in concrete.
Tighten bolts until support angles are secure.
Follow anchor manufacturers installation
instructions for proper installation.
6. Using a proper lifting device, raise and position
the leveler base plate to marked position, while
resting on the support angles. While holding
base plate tight against dock face, tack weld
securely to support angles.
7. Drill 5/8” dia. by 5” deep holes in concrete
through holes in base plate, and install anchor
bolts with washers and tighten securely.
8. Position bump blocks out approximately 5/8” out
from the edge of the inside flange of the bump
block to the end of the base plate. Position the
top of the tread cover plate on the bump blocks
to be 1/4” above dock level. Note that this
placement will vary with ramp plate thickness.
Mark centers of holes in bump block flanges.
9. Drill 5/8” dia. by 5” deep holes at center marks.
Reposition bump blocks, insert anchor bolts with
washers and tighten securely to dock face.
10. Place steel ramp plate in position, flush with top
backside of base plate. Mark along full length
of base edge of ramp plate. Slide ramp plate
forward over dock leveler the width of brushing
tool, approximately 2”.
11. Place bushing tool on marked line at each end
of ramp to ensure proper alignment at both
ends. A Skil Roto Hammer #736 or similar tool is
recommended.
12. Using the back edge of the ramp plate as a
guide, groove concrete approximately 5/8” deep
by 2” wide, and should be the entire length of
ramp plate.
13. Slide ramp plate back into position with the top
of the ramp plate flush with the top of the base
plate. Tack weld each end and center of ramp
plate to base plate.
14. Using ramp plate as a guide drill (9) 5/8” dia.
by 5” deep holes. Install anchor bolts per
manufacturers specifications, and tighten
securely. Weld anchor bolt nuts to ramp plate
using a 1/4” fillet weld all the way around the
nut. Cut off any portion of the anchor bolt
exposed through the nut, and plug weld around
the top of the nut to the anchor bolt. Ensure
the top of the nuts are well rounded for smooth
rollover.
15. Complete bumper install:
a. Apply continuous weld across top of each
bumper. Skip welding is acceptable to
prevent warpage, but complete weld must be
completed.
b. Drill holes 5/8” dia. by 5” deep in concrete.
Install 5/8 x 4-3/4 anchor bolts with washers.
16. Finish welding the base plate:
a. Weld the top of end base plate and first
hinge to the ramp plate.
b. Weld top of each hinge tube to the ramp
plate.
17. Finish mounting the base plate. Drill holes 5/8”
dia. by 5” deep in concrete. Install 5/8 x 4-3/4
anchor bolts with washers.
18. Installer must remove all welding slag, and
repaint welded areas.
19. Installer must adjust springs on all mechanical
Edge of Dock levelers to provide desired tension
for smooth operation. See page 30.
Flush Mount - Bolt On
INSTALLATION

17
4111-0026 — Feb. 2019
©2019 Systems, LLC
Figure 8
Securely block or support ramp and lip when in
vertical positions. Lack of proper bracing can result
in ramp dropping during adjustment or installation.
Flush Mount - Bolt On (continued)
INSTALLATION
Note:
1. Top of base plate and bumper cover plate to
be flush with top of dock floor and embedded
channel.
2. Apply continuous bevel weld across both
bumpers and length of base plate.

18 4111-0026 — Feb. 2019
©2019 Systems, LLC
A ramp mount-weld on used with a formed angle
application is used when dock edge is damaged,
there is no dock steel securely anchored into the
concrete, and the dock height is too low and leveler
must be installed above this height to correct this
situation.
1. Remove all existing bumper material and
protruding objects from dock edge. Clean and
sweep dock edge free of debris and flammable
chemicals before installing unit.
2. Review and follow formed angle installation
instructions prior to leveler installation. See Page
20, Figure 10.
3. At chosen location for Edge of Dock leveler,
locate the center of space and mark a point half
of the base plate width to the left and right.
4. At the points marked to each side of center,
measure and mark points 7-3/4” below dock
level less height the unit is to be raised to locate
bottom of base plate. This will locate the top of
the base plate X” above dock level.
5. Using a proper lifting device, raise and position
the leveler base plate to marked position. While
holding base plate tight against dock face, tack
weld securely to dock steel on left hand end
of leveler. Check right hand end of base plate,
ensure that end is against dock steel and that
the bottom of the base plate is even with the
marks made previously. Tack right hand end
to dock steel. Support unit until final welding is
ready to complete.
6. Position bump blocks out approximately 5/8” out
from the edge of the inside flange of the bump
block to the end of the base plate. Position the
top of the tread cover plate on the bump blocks
to be flush with the top of the base plate. Tack
weld bump blocks to dock steel.
7. Place steel ramp plate in position, flush with top
backside of base plate. Mark along full length
of back edge of ramp plate. Slide ramp plate
forward over dock leveler the width of bushing
tool, approximately, 2”.
8. Place bushing tool on marked line at each end
of ramp to ensure proper alignment at both
ends. A Skil Roto Hammer #736 or similar tool is
recommended.
9. Using the back edge of the ramp plate as a
guide, groove concrete approximately 3/4” deep
by 2” wide, and should be the entire length of
ramp plate.
10. Slide ramp plate back into position with the top
of the ramp plate flush with the top of the base
plate. Tack weld each end and center of ramp
plate to base plate.
11. Using ramp plate as a guide drill (9) 5/8” dia.
by 5” deep holes. Install anchor bolts per
manufacturers specifications, and tighten
securely. Weld anchor bolt nuts to ramp plate
using a 1/4” fillet weld all the way around the
nut. Cut off any portion of the anchor bolt
exposed through the nut, and plug weld around
the top of the nut to the anchor bolt. Ensure
the top of the nuts are well rounded for smooth
rollover.
12. Complete bumper install:
a. Apply continuous weld across top of each
bumper. Skip welding is acceptable to
prevent warpage, but complete weld must be
completed.
b. Plug weld mounting holes to imbed.
13. Finish welding the base plate:
a. Weld the top of end base plate and first
hinge to imbed.
b. Weld top of each hinge tube to imbed
c. Weld vertically along each end of base plate
d. Fully plug weld all holes in base plate.
14. Installer must remove all welding slag, and
repaint welded areas.
15. Installer must adjust springs on all mechanical
Edge of Dock levelers to provide desired tension
for smooth operation. See page 30.
Ramp Mount - Weld On w/Formed Angle
INSTALLATION