McGuire RRH SERIES User manual

MCCGUIRE • Division of Systems, Inc. • W194 N11481 McCormick Drive • Germantown, WI 53022
800.643.5424 • fax: [phone] • www.wbmcguire.com • [email protected]
RRH SERIES
Dock Leveler
Owner’s/User’s Manual
Printed in U.S.A.
Copyright ©2017
Manual No. 4111-0070
May 2017
June 2017

Table of Contents
Page
Precautions
Recognize Precautionary Information ................................................ 1
General Operational Precautions........................................................ 1
Operational Precautions ...................................................................... 2
Maintenance Precautions..................................................................... 4
Precaution Decal’s................................................................................ 5
Owners/Users Responsibility .............................................................. 6-7
Introduction
General Information.............................................................................. 7
Dock Leveler Stock Specifications ..................................................... 7
Component Identification..................................................................... 8
Installation
Fixed Leveler .........................................................................................11
Manual Side Shift Leveler ................................................................... 12
Hydraulic Side Shift Leveler ............................................................... 15
Install Control Panel and Wiring ........................................................ 16
New Leveler Into Service .................................................................... 18
Operation
Theory ................................................................................................... 20
Operating Instructions ........................................................................ 21
Ramp Loading/Unloading Instructions ........................................ 22
End Loading/Unloading Instructions ........................................... 23
Maintenance
Service Dock Leveler........................................................................... 24
Periodic Maintenance .......................................................................... 26
Adjustments
Adjust Main Pressure Relief ............................................................... 28
Leveler Pressure Relief ....................................................................... 29
Flow Control ......................................................................................... 29
Troubleshooting
Troubleshooting................................................................................... 30
Parts
J -Box .................................................................................................... 34
Hose Routing........................................................................................ 35
Platforms............................................................................................... 36
Side Shift Cylinder............................................................................... 38
Carriage................................................................................................. 39
Hydraulic Components........................................................................ 40
Hoist Cylinder Repair Parts ................................................................ 46
Lip Cylinder Repair Parts ................................................................... 47
Power Pack Assembly ........................................................................ 48
Remote Power Unit ............................................................................. 50
Miscellaneous
Customer Information ......................................................................... 53
Warranty................................................................................................ Back Cover

1
4111-0070 — May 2017
June 2017
PRECAUTIONS
The use of the word DANGER signifies the presence
of an extreme hazard or unsafe practice which will
result in death or serious 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.
NOTICE is used to address practices not related to
physical injury.
The use of the word CAUTION signifies possible
hazard or unsafe practice which may result in minor
or moderate injury.
Safety instruction(or equivalent) signs indicate
specific safety-related instructions or procedures.
O
p
e
r
a
t
i
n
g
Z
o
n
e
Recognize Precautionary Information
Read and understand the Owner’s/User’s Manual
and become thoroughly familiar with the equipment
and its controls before operating the transport vehicle
restraint.
Never operate a transport vehicle restraint while a
safety device or guard is removed or disconnected.
Never remove DANGER, WARNING, or CAUTION
signs or Decal’s on the equipment unless replacing
them.
General Operational Precautions
Do not start the equipment until all unauthorized
personnel in the area have been warned and have
moved outside the operating zone.
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.
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.

24111-0070 — May 2017
June 2017
PRECAUTIONS
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.
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 until loading or
unloading is finished and transport driver has been
given permission to drive away.
Do not use a broken or damage dock leveling
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.
Learn the safe way to operate this equipment. Read and understand the
manufacturer’s instructions. If you have any questions, ask your supervisor.
Operational Safety PrecautionsOperational Precautions

3
4111-0070 — May 2017
June 2017
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.
Operational Precautions

44111-0070 — May 2017
June 2017
PRECAUTIONS
1.50"
3.00"
Decal Size: 1.5 x 3
File Name: 1751-0736 Rev A
Arc Flash and
Shock Hazard
PPE [Personal Protection
Equipment] Required
De-energize equipment before
working on or inside. Do not
open cover without appropriate
PPE. Refer to NFPA 70E for
PPE requirements. This panel
may contain more than one
power source.
Hazardous Voltage
Will Result in Death
or Serious Injury
1751-0736 Rev A
Hydraulic and electrical power must be OFF when
servicing the equipment. For maximum protection,
use an OSHA approved locking device to lock
out all power sources. Only the person servicing
the equipment should have the key to unlock the
device.
ALWAYS disconnect electrical power source and
ground wire before welding on dock leveler.
DO NOT ground welding equipment to any hydraulic
or electrical components of the dock leveler. Always
ground to the dock leveler frame.
ALWAYS stand clear of dock leveler lip when
working in front of the dock leveler.
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.
Always post safety warnings and barricade the
work area at dock level and ground level to prevent
unauthorized use of the unit before maintenance is
complete.
A
B
TOLERANCES
(UNLESS OTHERWISE NOTE D)
FRACTIONAL: 1/32"
DECIMAL:
.00 = .01"
.000 = .005"
ANGULAR: 1
MATERIAL
DRAWN BY CHECKED BY
DRAWING NO.
DATE
mikemartin 2/4/2015
vs prop
P O W E R A M P
M C G U I R E
D L M
S Y S T E M S, I N C.
L o a d i n g D o c k E q u i p m e n t
This print is the property of Systems, Inc. and representsa proprietary article in which Systems, Inc. retains any and all
patent and other rights, including exclusive rights of use and/or manufacture and/or sale. Possession of this print d oes
not convey any permission to reproduce, print or manufacture the article or articles shown therein, such permission to be
granted only by written authorization signed by an officer or other authorized agent of Systems, Inc. thereof.
STOCK NO.
Decal Size: 4 x 6.25
File Name: 1751-0555 Rev E
CRUSH HAZARD
DO NOT WORK UNDER OR IN FRONT OF RAIL
RAMP unless ALL maintenance props have been
properly positioned and secured. Side
maintenance props must be positioned and
secured with screw and nut as shown in figure “A”
below. Failure to do so will result in death or serious
injury. Refer to owner’s/user’s manual for proper
procedure.
Stored
Position
Maintenance
Position
Screw and Nut
Maintenance
Prop
FIG.“A”
1751-0555 Rev E
Maintenance Safety Precautions

5
4111-0070 — May 2017
June 2017
PRECAUTIONS
Precaution Decal’s
File Name: 1751-0807 Rev C
Decal Size: 3.75” x 14”
CRUSH HAZARD
DO NOT WALK IN
FRONT OF DOCK
LEVELER until you:
Restore the dock
leveler to its safe
stored vertical
position with lip
extended.
Unsupported dock
levelers can lower
unexpectedly.
Before allowing
vehicle to leave
the dock always:
Ensure that no equipment material or
people are on dock leveler.
Restore dock leveler to its safe stored
vertical position with lip extended.
OPERATION
1. Read and follow all instructions and warnings in the
owner’s/user’s manual.
2. Use of dock leveler restricted to authorized
personnel.
3. Always chock transport vehicle wheels or engage
vehicle restraint before operating dock leveler or
beginning to load or unload.
4. Never use hands or equipment to move the ramp or
lip.
5. Before activating dock leveler:
 Ensure transport vehicle is backed in against
bumpers.
 Remove any end loads if required.
 Check transport vehicle alignment to avoid lip
interference. If lip does not lower to transport
vehicle bed, reposition transport vehicle.
6. Ensure that transport vehicle bed supports extended
lip or the leveler frame supports the ramp before
driving on ramp.
7. Stay clear of hinges and front and sides of moving
dock leveler.
8. Never use damaged or malfunctioning dock leveler.
Report problems immediately to supervisor.
MAINTENANCE/SERVICE
1. Read and follow all instructions, warnings and
maintenance schedules in the owner’s/user’s
manual.
2. Maintenance/service of dock leveler restricted to
authorized personnel.
3. Place barriers on the driveway and on dock floor to
indicate service work is being performed.
4. DO NOT SERVICE LEVELER unless dock leveler is
securely supported by all prop.
a. First, ensure all maintenance props are in
maintenance positions and properly secured.
b. Then engage prop lock pin in storage prop.
5. Turn off power and use OSHA lockout/tagout
procedures.
Failure to follow posted instructions
will result in death or serious injury.
Call 1.800.643.5424 for replacement placards, warning labels, or owner’s/user’smanuals
1751-0807 Rev C
SAFETY INFORMATION
File Name: 1751-0138 Rev B
Decal Size: 4 x 2
CRUSH HAZARD
DO NOT REMOVE hydraulic cylinder until leveler is
safely supported by maintenance prop. Refer to
owner’s/user’s manual for proper maintenance
procedure. Failure to comply will result in death or
serious injury. 1751-0138 Rev B
File Name: 1751-0229 Rev E
Decal Size: 4 x 1
A
B
TOLERANCES
(UNLESS OTHERWISE NOTE D)
FRACTIONAL: 1/32"
DECIMAL:
.00 = .01"
.000 = .005"
ANGULAR: 1
MATERIAL
DRAWN BY CHECKED BY
DRAWING NO.
DATE
mikemartin 2/4/2015
vs prop
P O W E R A M P
M C G U I R E
D L M
S Y S T E M S, I N C.
L o a d i n g D o c k E q u i p m e n t
This print is the property of Systems, Inc. and representsa proprietary article in which Systems, Inc. retains any and all
patent and other rights, including exclusive rights of use and/or manufacture and/or sale. Possession of this print d oes
not convey any permission to reproduce, print or manufacture the article or articles shown therein, such permission to be
granted only by written authorization signed by an officer or other authorized agent of Systems, Inc. thereof.
STOCK NO.
Decal Size: 4 x 6.25
File Name: 1751-0555 Rev E
CRUSH HAZARD
DO NOT WORK UNDER OR IN FRONT OF RAIL
RAMP unless ALL maintenance props have been
properly positioned and secured. Side
maintenance props must be positioned and
secured with screw and nut as shown in figure “A”
below. Failure to do so will result in death or serious
injury. Refer to owner’s/user’s manual for proper
procedure.
Stored
Position
Maintenance
Position
Screw and Nut
Maintenance
Prop
FIG.“A”
1751-0555 Rev E
CRUSH HAZARD
Prior to any maintenance, repair or adjustments to dock
leveler:
• Store leveler in vertical position with lip extended
• Secure maintenance props in the lowered
maintenance position
• Apply proper lockout/tagout procedure
Raising platform by means other than leveler hydraulics may
introduce air into hydraulic system. Hydraulic cylinder(s) will not
be able to support platform with air introduced into system and
platform could fall rapidly.
Work MUST be complete and dock leveler in proper working
condition before returning maintenance props to stored
position. DO NOT stand in front of dock leveler when returning
maintenance props to stored position.
Refer to owner’s/user’s manual for instructions to restrain
platform and bleeding hydraulic system.
Failure to do this will result in death or serious injury.
File Name: 1751-1057
Decal Size: 4 x 6.75
1751-1057

64111-0070 — May 2017
June 2017
OWNER’S/USER’S RESPONSIBILITIES
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, ect.
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.
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 when the transportation vehicle
is positioned as close as practical to the dock leveling
device and in contact with both bumpers, there shall be
a minimum of 4.00 inches (100mm) overlap between
the front edge of the lip and the edge of the floor or sill
of the transport vehicle at all times during the loading
and unloading process.

7
4111-0070 — May 2017
June 2017
INTRODUCTION
General Information
RRH dock levelers are available in the following
sizes, weight capacities, and options:
Width: RRH
6 ft (1829 mm)
6-1/2 ft (1981 mm)
7 ft (2134 mm)
7-1/2 ft (2286 mm)
8 ft (2438.4 mm)
8-1/2 ft (2590 mm)
9 ft (2743 mm)
Length
Based on center line dimensions
Capacity (CIR*)
40,000 lb (18 144 kg)
45,000 lb (20 412 kg)
50,000 lb (22 680 kg
* CIR (Comparative Industry Rating)
Call McGuire to discuss available power pack
mounting configurations, voltages, phases and
options to meet your specific needs.
The RRH series dock leveler comes equipped
with an electrical control panel, which allows push
button operation of the dock leveler functions. Each
RRH dock leveler unit and control panel has been
factory prewired and tested to ensure satisfactory
operation.
To illustrate which connections are to be made in the
field at installation, electrical drawings are included
with each order or by contacting Technical Services.
Once again, thank you and congratulations on your
purchase of a Rail Car Ramp leveler.
Dock Leveler Stock Specifications
Congratulations on your choice of a McGuire Rail
Car Ramp leveler. This manual covers the RRH (Rail
Ramp Hydraulic) series hydraulic dock leveler.
Designed by McGuire to be a marvel of simplicity and
efficiency, your dock leveler, when properly installed,
will provide many years of trouble-free performance
with an absolute minimum of maintenance. Its
revolutionary hydraulic system efficiently controls
and operates every function. To obtain maximum
performance and longest possible use, a simple
program of preventive maintenance is recommended.
9) When goods are transferred between the loading
dock and the transport vehicle, this vehicle
shall have the brakes and wheel chocks or
positive restraints that provide the equivalent
protection of wheel chocks shall be engaged. It is
recommended that transport vehicles with air-ride
suspension systems shall have its air exhausted
prior to performing loading and unloading
operation to minimize transport vehicle bed drop.
10) 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.
11) Loading dock devices that are structurally
damaged or has 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.

84111-0070 — May 2017
June 2017
INTRODUCTION
Component Identification RRH Fixed
A Lip E Hoist Cylinder* ISide End Load Support
B Platform F Hinge Pin, Lip J PowerPac**
C Lip Cylinder G Maintenance Props K Hinge Pin, Platform
D Flow Control Valve H Embed P Lifting Bracket
* Models may be equipped with 1 or 2 cylinders.
**Powerpac may be mounted on underside of leveler or remotely.
B
D
A
I
C
J
H
E
F
G
K
P
G

9
4111-0070 — May 2017
June 2017
Component Identification RRH Manual Side Shift
INSTALLATION
ALip
B Platform
CLip Cylinder*
DFlow Control Valve
EHoist Cylinder*
FHinge Pin, Lip
G Hinge Pin, Platform
H Carriage
ICam Followers (Bearings)
JRoller Track
LMaintenance Props
MStops, Roller Track
NPowerPac (remote mount)
OSide End Load Support
* Models may be equipped with 1 or 2 cylinders.
N
A
B
C
D
E
F
L
J
H
M
O
I
G

10 4111-0070 — May 2017
June 2017
Component Identification RRH Hydraulic Side Shift
INTRODUCTION
A Lip F Hinge Pin, Lip K Carriage
B Platform G Hinge Pin, Platform L PowerPac (remote mounted)
C Lip Cylinder* H Maintenance Props MSide End Load Support
D Flow Control Valve I Cam Followers (bearings) NSide Shift Cylinder
EHoist Cylinder* JRoller Track OSide Shift Cylinder Mount
* Models may be equipped with 1 or 2 cylinders.
D
L
A
C
E
F
H
J
B
IK
M
N
O
G

11
4111-0070 — May 2017
June 2017
RRH Fixed installation
INSTALLATION
Before lowering the RRH deck leveler into the
embed, the following must be performed:
1. Check the embed for proper construction
according to approved/certified pit drawings.
Make sure embed is level, plumb and square.
2. Remove any control panel, bumpers or palletizing
that may be banded to the dock leveler. Do not
remove banding on hoist cylinder.
3. Make sure the mounting hardware of lifting
bracket(s) (A) 1/4 turn past finger tight. The
brackets should pivot relatively freely on the
mounting cap screw. DO NOT over tighten.
4. Attach lifting chain to lifting bracket(s) (A) and to
a lifting device (i.e., hoist or fork truck) having the
appropriate lifting capacity and reach.
5. Lube the rear hinge pins using grease. Install the
hinge pins in the rear embed only through the first
hinge tube.
6. Lower the RRH Vertical leveler down centering
the leveler’s hinge pins with the embeds pins.
• Insert the hinge pins starting with the outside
first. Install and secure cotter pins in hinge pins.
7. Make all hydraulic connections.
8. Make all electrical connection, ONLY when all
welding is completed.
Note: Do not connect hoist cylinder(s) at this time.
System must be bleed before connected (See
page 19).
Only trained installation professionals with the
proper equipment should install this product.
Post safety warnings and barricade the work area at
dock level and ground level to prevent unauthorized
use of the equipment before installation has been
completed.
A

12 4111-0070 — May 2017
June 2017
INSTALLATION
RRH Side Shift Installation
Installation of Carriage and Platform (if
separated).
1. Check the roller track (A) for proper construction
according to approved/certified pit drawings.
Make sure roller track is level. Inspect track to be
free from damage and clear of foreign material.
2. Remove any control panel, bumpers or palletizing
that may be banded to the dock leveler.
3. To separate RRH platform from the carriage
support platform on back side (diamond plate)
and support carriage.
A. Remove and cap any hydraulic hose(s).
B. Remove (B) hoist cylinder pins at carriage.
C. Remove rear (C) hinge pins (platform to
carriage).
4. With carriage separated from the RRH platform
the carriage must be orientated so when lifted the
rollers will slide into the roller track.
5. Verify mounting hardware and lifting bracket(s)
(D)p.13, are 1/4 turn past finger tight. The
brackets should pivot relatively freely on the
mounting bolt. DO NOT over tighten.
6. The carriage (E)p.13, must be slide into the roller
track from the side. The carriage must be installed
slowly and level to prevent damage to the rollers.
7. If carriage is a manual side shift weld on roller
track stops (F)p.13.
DO NOT remove the Maintenance Props at this time.
They should be rotated to the lowered position during
installation. They will keep the leveler in the upright
position, once the hinge pins are installed, until the
storage prop and hoist cylinder are installed and the
leveler is ready for testing.
The dock leveler is heavy. Use a lifting device and
chains with the appropriate lifting capacity and
reach.
Always use the lifting brackets provided with the
unit whenever lowering or lifting a dock leveler into
or out of a pit.
10” Channel
6-1/2”
A
A
Roller Track
C
A
B

13
4111-0070 — May 2017
June 2017
INSTALLATION
8. Installation of platform to carriage.
A. Lower the RRH platform down centering
the platform hinge tubes with the carriage
pins. (Care should be taking to prevent
damage to hoist cylinder rod ends).
B. Lube (C) rear hinge pins using grease.
Install the hinge pins in the carriage embed
only through out the first hinge tube.
C. Fully insert the hinge pins. Start with the
outer left side outside first and work your way
to the other end.
D. Install and secure cotter pins into the end
of the hinge pins.
E. Make all hydraulic hose(s).
9. Make all electrical connection.(Only after all
welding is completed and touched up.)
10. DO not connect (B) hoist cylinders(s) at this time.
The system must be bled before connected see
(page 19).
Installation of RRH levelers from inside is
recommended due to combined height of leveler
and proper lifting equipment may be greater than
outside door height.
ALWAYS disconnect electrical power source and
ground wire before welding on dock leveler.
DO NOT ground welding equipment to any hydraulic
or electrical components of the dock leveler. Always
ground to the dock leveler frame.
Overall length of lifting chain and bracket must be
kept to a minimum to prevent interference
between the lifting equipment and the building
ceiling or door as the dock leveler is lowered into
the pit.
AED
F

14 4111-0070 — May 2017
June 2017
INSTALLATION
The dock leveler is heavy. Use a lifting device and
chains with the appropriate lifting capacity and
reach.
Always use the lifting brackets provided with the
unit whenever lowering or lifting a dock leveler into
or out of a pit.
A
B
TOLERANCES
(UNLESS OTHERWISE NOTE D)
FRACTIONAL: 1/32"
DECIMAL:
.00 = .01"
.000 = .005"
ANGULAR: 1
MATERIAL
DRAWN BY CHECKED BY
DRAWING NO.
DATE
mikemartin 2/4/2015
vs prop
P O W E R A M P
M C G U I R E
D L M
S Y S T E M S, I N C.
L o a d i n g D o c k E q u i p m e n t
This print is the property of Systems, Inc. and representsa proprietary article in which Systems, Inc. retains any and all
patent and other rights, including exclusive rights of use and/or manufacture and/or sale. Possession of this print d oes
not convey any permission to reproduce, print or manufacture the article or articles shown therein, such permission to be
granted only by written authorization signed by an officer or other authorized agent of Systems, Inc. thereof.
STOCK NO.
Decal Size: 4 x 6.25
File Name: 1751-0555 Rev E
CRUSH HAZARD
DO NOT WORK UNDER OR IN FRONT OF RAIL
RAMP unless ALL maintenance props have been
properly positioned and secured. Side
maintenance props must be positioned and
secured with screw and nut as shown in figure “A”
below. Failure to do so will result in death or serious
injury. Refer to owner’s/user’s manual for proper
procedure.
Stored
Position
Maintenance
Position
Screw and Nut
Maintenance
Prop
FIG.“A”
1751-0555 Rev E
Install Dock Leveler
A— Lifting Lug B— Maintenance Props
Maintenance props in lowered location during installation and service.
A
B

15
4111-0070 — May 2017
June 2017
INSTALLATION
Optional Hydraulic Side Shift
1. Install side travel mount (see drawings for
mounting locations).
2. Install side shift cylinder.
3. Connect hydraulic hoses.
Note: Do not connect hoist cylinder(s) at this time.
System must be bled before connected (see
page 19).
BC
ASide Shift Cylinder CHardware
BCylinder Mount DHoses
A
B
C
D
BC
D

16 4111-0070 — May 2017
June 2017
INSTALLATION
1. Mount the push button control panel (B) so bottom
of control panel-to-dock floor distance (C) is 48 in.
(1219.2 mm).
2. Install electrical disconnect panel (A) if not already
installed.
3. Install and connect the control wiring.
4. Connect the dock leveler power cable to the field
wires in the pit junction box. Refer to the electrical
drawings supplied with the dock leveler.
Install Control Panel and Wiring
* Refer to OSHA regulation 1910.146. Confine Space
* Refer to OSHA regulation 1910.147. Lockout/Tagout
A— Disconnect Panel
B— Control Panel
D— Placard
(provided by others)
C— Distance, 48 in. (1219.2 mm)
The electrical power must be OFF prior to electrical
installation. For maximum protection, use an OSHA
approved locking device to lock out all power
sources. Only the person installing the equipment
should have the key to unlock the power source.
DO NOT make any final electrical connections until
all welding has been completed.
All electrical work — including the installation of
the disconnect panel, control panel, and final
connections to the pit junction box — must be
performed by a certified electrician and conform to
all local and applicable national codes.
When drilling access hole in the control box, DO NOT
penetrate too deep, components may be damaged.
DO NOT turn control upside down to drill any access
holes. To prevent damaged to electrical components
from debris cover components prior to drilling
Seal all conduit entrances to prevent moisture from
entering the control box.
DO NOT use compressed air to clean control box.
Recommended to vacuum debris from inside.
1.50"
3.00"
Decal Size: 1.5 x 3
File Name: 1751-0736 Rev A
Arc Flash and
Shock Hazard
PPE [Personal Protection
Equipment] Required
De-energize equipment before
working on or inside. Do not
open cover without appropriate
PPE. Refer to NFPA 70E for
PPE requirements. This panel
may contain more than one
power source.
Hazardous Voltage
Will Result in Death
or Serious Injury
1751-0736 Rev A
B
A
C
D

17
4111-0070 — May 2017
June 2017
INSTALLATION
Placard Installation Instructions
Control Box
Conduit
Nylon Tie
Placard
• Owner/Users are responsible for the installation and placement of product
placards.
• Make sure placard is in plain view of dock leveler and/or vehicle restraint
operations.
• Suggested placement of placard is near control box attached to electrical
conduit by using nylon tie. If there is no control box present, mount placard
on wall to the immediate left of leveler at eye level.
(Placard placement
shown as reference
only.)

18 4111-0070 — May 2017
June 2017
INSTALLATION
1. Purge system (see page 19).
2. Connect hoist cylinder (see page 19)
3. Disconnect the external lifting device and chains
from the lifting bracket(s).
4. Complete all welding.
5. Install hydraulic hoses and fill system.
6. Connect all electrical connections.
7. Test leveler for operation.
A. Lower RRH dock leveler and check to make
sure the leveler goes into float mode (about
15” above dock floor). Allow the RRH to float
to full below position. Depress and hold the
RAISE button until the leveler until stored.
B. Check the lip operation: Lower RRH dock
leveler to 45 degrees, then depress the
LOWER and LIP buttons simultaneously, and
the lip will fold. Depress and hold the RAISE
and the LIP button and the lip will extend.
Put New Dock Leveler Into Service
Following start-up or if the platform is raised using
an external lifting device or the hydraulic system
is opened to atmosphere, air will enter into the
hydraulic system.
Whenever this happens, purge air from hydraulic
system fully.
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.
DO NOT connect the dock leveler electrical wiring
and ground connections until all welding has been
completed.
DO NOT ground welding equipment to any
hydraulic or electrical components of the dock
leveler. Always ground welding equipment to the
dock leveler frame, NEVER to the platform.
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.