RITE-HITE Wheel-Lok MWL-1300 User manual

MWL-1300 Wheel-LokTM
Vehicle Restraint
Installation Manual
This Manual Covers Restraints Built After Serial Numbers:
10HG900001M and up
PRINTED IN U.S.A.
RITE-HITE PRINT SHOP
PUBLICATION NO. 1301
NOVEMBER 2014
MADE IN U.S.A.

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RITE-HITE®MWL-1300 Installation Manual
TABLE OF CONTENTS
NOTICE TO USER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY WARNINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BACK COVER
NOTICE TO USER
Your local Rite-Hite representative provides a Planned Maintenance Program (P.M.P.) which can be fitted to your
specific operation. Call your local representative or the Rite-Hite at 414-355-2600.
The Rite-Hite products in this manual are covered by one or more of the following U.S. patents: 5,546,623;
5,553,987; 5,582,498; 5,664,930; 5,702,223; 5,762,459 (RE: 37,570); 5,882,167; 6,065,172; 6,070,283; 6,085,375;
6,089,544; 6,092,970; 6,106,212; 6,116,839; 6,190,109; 6,276,016; 6,311,352; 6,318,947; 6,322,310; 6,360,394;
6,368,043; 6,431,819; 6,488,464; 6,499,169; 6,505,713; 6,520,472; 6,524,053; 6,634,049; 6,726,432; 6,773,221;
6,832,403; 6,880,301; 7,032,267; 7,062,814; 7,134,159; 7,213,285; 7,216,391; 7,363,670; 7,380,305; 7,503,089;
7,533,431; 7,546,655; 7,584,517; 7,681,271; 7,823,239; 7,841,823; 7,877,831; 7,914,042; 8,006,811; 8,065,770;
8,141,189; 8,191,194; 8,286,757; 8,287,223; 8,303,235; 8,307,956; 8,443,474; 8,464,384; 8,464,846; 8,465,245 and
pending U.S and foreign patent applications. RITE-HITE®, THINMANTM, SAFE-T-LIP®, HYDRACHEK®, WHEEL-LOKTM,
DOK-LOK®, DUAL-DOK®, SAFE-T-STRUTTM, DOK-COMMANDER®, JUMBOTM, HYDRA-RITETM, SAFE-T-GATE®, RITE-
VUTM LIGHT COMMUNICATION SYSTEM and SMOOTH TRANSITION DOK SYSTEMTM, are trademarks of Rite-Hite®.

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RITE-HITE®MWL-1300 Installation Manual
SAFETY WARNING
XXXXXXXXXXXX
XXXXXXXXXXX
OPERATE
DO NOT
LOCKOUT/TAGOUT PROCEDURES
The Occupational Safety and Health Administration requires that, in addition to posting safety warnings and
barricading the work area, the power supply has been locked in the OFF position or disconnected. It is mandatory
that an approved lockout device is utilized. An example of a lockout device is illustrated. The proper lockout
procedure requires that the person responsible for the repairs is the only person who has the ability to remove the
lockout device.
In addition to the lockout device, it is also a requirement to tag the power control in a manner that will clearly note
that repairs are under way and state who is responsible for the lockout condition. Tagout devices have to be
constructed and printed so that exposure to weather conditions or wet and damp locations will not cause the tag to
deteriorate or become unreadable.
RITE-HITE®Corporation does not recommend any particular lockout device, but recommends the utilization of an
OSHA approved device (refer to OSHA regulation 1910.147). RITE-HITE®Corporation also recommends the review
and implementation of an entire safety program for the Control of Hazardous Energy (Lockout/Tagout). These
regulations are available through OSHA publication 3120.
When working with electrical or electronic
controls, make sure that the power source has
been locked out and tagged according to OSHA
regulations and approved local electrical codes.
This is the highest level statement. Failure to
follow the listed instructions will most likely
result in severe injury or death.
IMPORTANT is used to draw attention
to a procedure that needs to be followed to
prevent machine or property damage.
This is a statement of serious hazard. Failure to
follow the listed instructions could place the
individual at risk of serious injury or death.
The statements used with this level of
warning deal with a safe operating
procedure. If the procedure is ignored, the
possibility of personal injury may exist.

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RITE-HITE®MWL-1300 Installation Manual
INSTALLATION INSTRUCTIONS
The performance of any machine can be no better than
the installation and application. The MWL-1300 vehicle
restraint requires only ordinary application and
installation skills using good workmanship and quality
materials.
Follow the 6-step Installation Procedure:
1. Inspect components.
2. Install frame assembly.
3. Install wheel guides.
4. Install electrical components and signs.
5. Install conduit guard.
6. Test operation.
INSPECT COMPONENTS
Open and inspect all materials. Immediately report any
damage or material shortage. Study component
assemblies and determine their proper locations.
MWL-1300 VEHICLE RESTRAINT POWER
SOURCE
On occasion, the incoming electrical power for the
MWL-1300 vehicle restraint is taken from a convenient
nearby electrical appliance, i.e., overhead door opener.
Generally, there is no problem using this sort of power
source; you must, however, verify that the amperage is
in accordance with local and federal codes.
The MWL-1300 vehicle restraint requires 120V, single
phase 60 Hz power and 1 amps of current. Ten (10)
MWL-1300 vehicle restraints can be hooked into one (1)
20 amp feeder circuit per the current N.E.C. Paragraph
#430-53.
WHEN IN DOUBT, CALL YOUR LOCAL RITE-HITE
REPRESENTATIVE OR RITE-HITE AT [phone].
Post safety warnings and barricade work area,
at dock level and at ground level, to prevent
unauthorized use of the dock position. When working with electrical or electronic
controls, make sure that the power source has
been locked out and tagged according to OSHA
regulations and approved local electrical
codes.
All components must be connected to a
SAFETY EARTH GROUND where indicated. The
SAFETY EARTH GROUND must conform to the
current National Electric Code Section 250-81
section (a) or section (c) for a grounding
electrode system.

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RITE-HITE®MWL-1300 Installation Manual
INSTALLATION INSTRUCTIONS CONTINUED
CONCRETE APPROACH REQUIREMENTS
Verify the approach meets the following criteria:
1. The approach must be concrete, 161" wide by 258"
long x 6" minimum thickness. See Figure 1.
2. If longer optional wheel guides are to be used, the
pad length must be increased to 318" from dock
face.
3. The approach must be free of discontinuities (such
as cracks, potholes, etc.). Approach must not
protrude more than 1/2” above the bottom of base
plates at any point where the barrier comes to rest.
See Figure 2.
4. The MWL-1300 vehicle restraint can be installed
and shimmed up to 1" without modification. If
greater than 1" of shimming is necessary, longer
anchors will be required. Please consult RITE-HITE.
TRENCH DRAINS
1. If the trench drain lies in the same position as a
MWL-1300 vehicle restraint anchor plate, a steel
plate must be welded to the mounting pad and
anchored to the approach. See Figure 2.
161"
(13'5")
258" (21'6")
Dock
Face 70"
C
L
91"
FIGURE 1 - CONCRETE PAD
RIGHT SIDE ORIENTATION SHOWN
(LEFT SIDE ORIENTATION OPPOSITE)
Never weld on the MWL-1300 vehicle restraint
when the electrical components are connected
to the main control box and the power to the
box is “ON”. Electrical current from the welder
can “FEED BACK” through the circuit and
could cause injury or damage electrical
components.

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RITE-HITE®MWL-1300 Installation Manual
Side View
Top View
Additional Plate Welded To Base
Plate When Base Plate Bridges
A Trench Drain. See Note 2
Plate For Center Support Not
To Protrude Into Tire Path.
TYP
1/4”
Trench Drains
Dock Face
Approach
C
L
1/2” Allowable
Shim Center Base Plate
Trench
Drains
Dock Face
Shim Beneath MWL Base
Plates As Required
FIGURE 2 — INSTALLATION OVER A TRENCH DRAIN AND SHIMMING
INSTALLATION OVER A TRENCH DRAIN AND SHIMMING INSTRUCTIONS
INSTALLATION INSTRUCTIONS CONTINUED

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RITE-HITE®MWL-1300 Installation Manual
INSTALLATION INSTRUCTIONS CONTINUED
LOCATE THE CENTERLINE
1. Secure a 20' length of string at the lower right edge
of the dock leveler pit at the dock face. Measure out
5' of string, and holding a piece of chalk at the end
of the 5' length of string, draw a large arc which
begins well before and extends past where you
expect the centerline to be. See Figure 3.
2. Repeat Step 1, this time beginning at the lower left
edge of the dock leveler pit at the dock face. Where
the two arcs intersect indicates one point of the
centerline.
3. Repeat Steps 1 and 2, using 20' of string instead of
5'. Use the intersections of both arcs as points to
snap a chalk line. This line is the centerline (Line A)
for the frame assembly.
LOCATE FRAME POSITION
1. Measure to the right of the centerline 48-3/4". Snap
a chalk line for Line B. To ensure Line B is parallel
to the centerline (Line A), measure and mark at
several locations. See Figure 3.
2. Measure 22" off each bumper face. Snap a chalk
line for Line C. See Figure 3.
LIFTING INSTRUCTIONS
NOTE: DO NOT FORK BENEATH WHEEL GUIDE!
1. Place barrier at approximate mid section of wheel
guide and place in Locked position.
2. Route lifting strap around wheel guide and barrier
as shown in Figure 4 ensuring that the straps are
above the coil cord support cable.
POSITION FRAME
1. Position the MWL-1300 vehicle restraint along the B
and C lines as shown in Figure 5. The rear edge of
the rear mounting plate should be aligned with Line
C. The edge of the front and rear base plate should
be aligned with Line B. See Figure 5.
SHIM AND ANCHOR FRAME
1. Starting at one end of the frame assembly, see
Figure 2 for shimming instructions, drill anchor holes
using mounting plates as templates. Insert anchor
bolts, tapping each into the drilled holes with a
hammer so that the head of the anchor is as close
to the anchor plate as possible without causing the
frame to twist.
2. After all concrete anchors have been inserted, using
a torque wrench, tighten each to 60 ft-lbs of torque.
C
L
20 Ft. 20 Ft.
Line A
Line B
48-3/4”
5 Ft.
5 Ft.
Line C
Dock
Bumper
22”
Loading Dock
FIGURE 3 - LOCATING CENTERLINE
DO NOT Fork Beneath
Wheel Guide
Lifting Strap
Ref.
Ensure Lifting
Straps Are Above
The Coil Cord
Support Cable
DO NOT Fork Beneath
Wheel Guide
FIGURE 4 - LIFTING

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RITE-HITE®MWL-1300 Installation Manual
INSTALLATION INSTRUCTIONS CONTINUED
INSTALL WHEEL GUIDES
NOTE
If there is another loading dock on the right side of the
MWL-1300 vehicle restraint installation and this position
does not have wheel guides, it is required to install a
protective wheel guide. See Figure 5.
1. Measure 184” off of bumper face and snap a chalk
line.
2. Measure 78” and 75” off the centerline to the right
and snap chalk lines.
3. Position right wheel guide so left rear corner of
rear mounting plate is 184” from bumper face and
78” from centerline, and left rear corner of front
mounting plate is 75” from centerline.
4. Position left wheel guide so left rear corner of rear
mounting plate is 184” from bumper face and right
rear corner of rear mounting plate is 47.75” from
centerline. Position so that right rear corner of
front mounting plate is 50.75” from centerline.
5. Insert concrete anchors and tighten, using a torque
wrench to 60 ft-lbs.
LOCKING RANGE
These instructions are intended for ALL DOCK
PERSONNEL who are involved in loading/unloading
trucks and trailers. MWL-1300 vehicle restraint is a
safety system used to accommodate trucks and trailers
with tire diameters ranging from 30" to 44", while the
rear axle is located at a maximum of 145" away from
the face of the loading dock. See Figure 6.
Min.
43"
Max.
145"
FIGURE 6 - WHEEL POSITION RANGE
Always check that the vehicle is parked firm
against the bumpers before locking the
MWL-1300 vehicle restraint.
Loading Dock
22”
Line C
Edges Of
Front & Rear
Base Plates
Aligned With
Line B
184”
Typ.
Line A
Line B
78-1/4”
47-3/4”
75”
51”
48-3/4”
C
L
Protective Wheel
Guide Required
When There Is
Not A MWL
Installed At
Adjacent Dock
Position.
(Long Wheel
Guide Optional)
Dock
Bumper
Standard
Short
Wheel
Guide
Optional Long
Wheel Guide
52”
Optional Short
Wheel Guide
Opposite
Side
Wheel
Guide
Same
Side
Wheel
Guide
Adjacent
Dock
Wheel
Guide
FIGURE 5 - ANCHORING TRACK

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RITE-HITE®MWL-1300 Installation Manual
INSTALLATION INSTRUCTIONS CONTINUED
48”
Approach
Loading Dock C
L
Door Opening
(Reference)
Floor
48”
18”
15”
Control
Box
Inside Caution
Sign
Some Docks May Have Truck Seals (Or Shelters)
Installed Or Planned Which Are Larger Than Standard.
Outside Light & Sign Location Mounting Should
Be Studied Before Proceeding To Avoid Interference.
Outside
Light Box
Outside Sign
(Mirror Text)
Operation
Sign
Outside
Sign
(Regular
Text)
7”
22”
58-1/2”
84-1/2”
96”
Junction Box NEMA 4 J.I.C.
Size Per Current NEC Section 370.16.
NOTE: Projection Of Box Not To Exceed 3.5”.
Right Side Orentation
(Left Side Orentation Opposite)
FIGURE 7 - ELECTRICAL INSTALLATION AND SIGN LAYOUT
When working with electrical or electronic
controls, make sure that the power source has
been locked out and tagged according to OSHA
regulations and approved local electrical
codes.
INSTALL ELECTRICAL COMPONENTS AND SIGNS
• When drilling holes in the box, DO NOT allow
the drill to go too deeply into the box.
Damage to the control systems may occur.
• DO NOT turn control box upside down to
drill any access holes. Cover internal
electrical components prior to drilling - this
will prevent debris from contacting the
internal electrical components.
• Remove all debris from box using a shop
vacuum. NEVER use air to blow debris from
the control box.

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RITE-HITE®MWL-1300 Installation Manual
CONTROL BOX AND CONDUIT
INSTALLATION PROCEDURES.
1. Install the control box on a wall adjacent to the
overhead door at approximately 48" above the floor
level. See Figure 7.
2. Drill a hole for the power supply conduit (by others)
in the bottom of the control box. All holes drilled
through the control box must be through the
bottom of the box.
Control Box Installation Guidelines -
Temperature Controlled Applications.
a. Conduit should be routed to enter through the
bottom or side of the enclosure. A drip leg may be
needed if the conduit could fill with water.
b. Seal the conduit in any location where the conduit
transitions temperature zones that may produce
condensation.
c. Spacers should be installed between the enclosure
and the wall to provide tempature insulation and air
flow.
ELECTRICAL INSTALLATION
If the incoming electrical power for the MWL-1300
vehicle restraint is taken from a nearby electrical
appliance, i.e., overhead door opener, verify that the
amperage is in accordance with local and federal
codes.
The MWL-1300 vehicle restraint requires 120V,
single phase 60 Hz power and 1 amps of current.
Ten (10) MWL vehicle restraints can be hooked into
one (1) 20 amp feeder circuit per the current N.E.C.
Paragraph #430-53.
When in doubt, call your RITE-HITE representative
or RITE-HITE at [phone].
The MWL-1300 vehicle restraint assembly includes
the control box with lights, outside power unit box
and the outside signal light box. The outside
junction box, conduit fittings and wire are provided
by others. Quality material and workmanship should
be used. Refer to Figure 7 for component location
information. Refer to electrical schematics found
inside the control box for wiring information.
All components must be connected to a
SAFETY EARTH GROUND where indicated. The
SAFETY EARTH GROUND must conform to the
1999 National Electric Code Section 250-50
section (a) or section (c) for a grounding
electrode system.
• The control box and all wiring should be
installed by a qualified electrician in
accordance with all national and local
electrical codes.
• If rigid conduit is installed, bonding must be
maintained between conduit connections by
using ground bushings and a jumper wire.
INSTALLATION INSTRUCTIONS CONTINUED