RITE-HITE Genisys GRH-700 Dok-Lok User manual

Model: GRH‑700
Publication: AMEN00017 2018‑05‑17
Genisys™ GRH‑700 Dok‑Lok®
Vehicle Restraint
Owner's Manual
This manual covers units: built after serial numbers 4512510001 and up
Language: English
GRH-700 9" CARRIAGE GRH-700 12" CARRIAGE
GRH-700 9" CARRIAGE GRH-700 12" CARRIAGE
9in Carriage 12in Carriage
NOTICE TO USER. . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ELECTRICAL
Control Harness . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Power-Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Restraint Micro Board. . . . . . . . . . . . . . . . . . . . . . 9
Wiring: Corner-Vu / Leveler-Vu. . . . . . . . . . . . . . 11
Wiring: Pedestrian-Vu. . . . . . . . . . . . . . . . . . . . . 12
Wiring: Outside Light Box. . . . . . . . . . . . . . . . . . 14
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . 20
Planned Maintenance. . . . . . . . . . . . . . . . . . . . . 21
Drive Chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
TROUBLESHOOTING
Component Testing. . . . . . . . . . . . . . . . . . . . . . . 24
LED Status Chart . . . . . . . . . . . . . . . . . . . . . . . . 25
PARTS
Carriage and Track 9in . . . . . . . . . . . . . . . . . . . . 28
Carriage and Track 12in . . . . . . . . . . . . . . . . . . . 30
Electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Signs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
2 Publication: AMEN00017 2018-05-17
NOTICE TO USER
Thank you for purchasing a Rite-Hite®product.
GRH-700 Dok-Lok vehicle restraint is an
electromechanical restraint device that, when properly
installed and operated, retains a secure connection
between truck and dock. Signal lights, warning horn and
signs provide instructions to truck driver and Dok-Lok
vehicle restraint operator that a safe condition exists.
The Dok-Lok vehicle restraint is operated by pressing
push buttons on an interior control panel.
The English version of this manual shall prevail over any
error in, or conicting interpretation of, any translations.
Read and understand contents of this manual prior to
installation or operation of this equipment.
Rite-Hite reserves the right to substitute and/or modify
parts and drawings (electrical & architectural). If separate
prints are included with unit, they supersede manual.
Contact Rite-Hite Customer Support for installation help
not covered in this manual: 800-456-0600 (U.S.).
A Planned Maintenance Program (P.M.P.), customized to
your specic operation is available and recommended.
For a P.M.P., contact your local Rite-Hite representative or
Rite-Hite technical support at (U.S.) 414-355-2600.
The Rite-Hite®products in this manual are covered by one or more
of the following U.S. patents: 5882167, 6065172, 6070283, 6085375,
6092970, 6106212, 6116839, 6190109, 6276016, 6311352, 6318947,
6322310, 6360394, 6368043, 6431819, 6488464, 6524053, 6726432,
6773221, 6832403, 6880301, 7032267, 7062814, 7213285, 7216391,
7363670, 7380305, 7503089, 7533431, 7546655, 7584517, 7681271,
7823239, 7841823, 7877831, 7914042, 8006811, 8065770, 8141189,
8191194, 8286757, 8287223, 8303235, 8307956, 8443474, 8464384,
8464846, 8465245, 8497761, 8499897, 8544130, 8547234, 8590087,
8590673, 8616826, 8657551, 8662535, 8678736, 8690087, 8905198,
9010501, 9096170, 9096397, 9126775, 9139384, 9145273, 9150367,
9174811, 9227799, 9230419 and may be covered by additional pending
U.S. and foreign patent applications.
Rite-Hite®, ThinMan™, Safe-T-Lip®, Hydrachek®, Wheel-Lok™, Dok-Lok®,
Dual-Dok®, Safe-T-Strut™, Dok-Commander®, Jumbo™, Hydra-Rite™,
Safe-T-Gate®, Rite-Vu™ Hazard Recognition and Communication System,
and Smooth Transition Dok System™, are trademarks of Rite-Hite®.
FCC Compliance
NOTE: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area
is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
NOTE: Changes or modications not expressly approved by the party
responsible for compliance could void the user's authority to operate the
equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including
interference that may cause undesirable operation.

Rite‑Hite®Owner's Manual Genisys™ GRH‑700™ Dok‑Lok®
Publication: AMEN00017 2018-05-17 3
NOTICE TO USER
Owner Responsibility
1. The owner should recognize the inherent danger of
the interface between dock and transport vehicle. The
owner should, therefore, train and instruct operators in
the safe use of dock equipment in accordance with the
information provided below. The manufacturer shall
publish, provide to the initial purchaser, and make the
following information readily available to owners:
• Installation instructions
• Recommended initial and periodic inspections
procedures
• Maintenance procedures
• Operating instructions
• Descriptions or specications for replaceable or
repairable parts
• Tables identifying the grade (slope) for all variations
of length or conguration of the dock equipment, and
• Information identifying the maximum uncontrolled
drop encountered upon sudden removal of support
while within the working range of the equipment.
It shall be the responsibility of the owner to verify that
the material listed in this section has been received
and that it is made available for the instruction
and training of personnel entrusted with the use or
maintenance of the dock equipment.
2. When a transport vehicle is parked at a loading
dock, it is important that the vehicle is relatively
perpendicular to the dock face and in close contact
with at least one of the dock bumpers.
3. Nameplates, cautions, instructions, and posted
warnings shall not be obscured from the view of
operating or maintenance personnel for whom such
warnings are intended.
4. Manufacturer’s recommended periodic maintenance
and inspection procedures in effect at date of
shipment shall be followed, and written records of the
performance of these procedures should be kept.
5. As with any piece of machinery, dock equipment
requires routine maintenance, lubrication, and
adjustments. Your local Rite-Hite representative offers
owners the option of a Planned Maintenance Program
(P.M.P.). As part of this service, your local Rite-Hite
representative will do all routine maintenance,
lubrication, and adjustments.
6. Dock equipment that is structurally damaged shall be
removed from service, inspected by a manufacturer’s
authorized representative, and repaired as needed
before being placed back in service.
7. The manufacturer shall make available replacement
nameplates, caution/instruction labels, and operating/
maintenance manuals upon request of the owner.
The owner shall see that all nameplates, caution/
instruction markings or labels are in place and legible,
and that the appropriate operating/maintenance
manuals are provided to users.
8. Modifications or alterations of dock equipment shall
be made only with written permission of the original
manufacturer. These changes shall also satisfy all
safety recommendations of the original equipment
manufacturer for the particular application of the dock
equipment.
9. In order to be entitled to the benefits of the standard
product warranty, the dock equipment must have
been properly installed, maintained and operated
within its rated capacities and/or specific design
parameters, and not otherwise abused.
10. It is recommended that trailers equipped with air
ride suspensions should remove the air from the
suspension to minimize trailer bed drop, prior to
loading or unloading.
11. When industrial trucks are driven on and off transport
vehicles during the loading and unloading operation,
the brakes on the transport vehicle shall be applied
and wheel chocks or a positive restraining device
shall be engaged.
12. It is recommended that an adequate stabilizing device
or devices be employed at the front of the trailer in all
cases where a trailer is being loaded or unloaded with
the trailer resting on its support legs (landing gear)
rather than a tractor fifth wheel or a converter dolly.
13. In selecting dock equipment, it is important to consider
not only present requirements but also future plans or
adverse environments.
170316

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
4 Publication: AMEN00017 2018-05-17
NOTICE TO USER
Definition and Function
The GRH-700 Dok-Lok vehicle restraint is an
electromechanical, self-aligning restraint device used
to secure trucks and semi-trailers with an intact Rear
Impact Guard (R.I.G.) to the face of a loading dock. This
is achieved by securing the R.I.G. with an electrically
powered steel hook. This prevents forward movement of
the truck/trailer that may create an unsafe void between
the face of the dock and the rear end of the truck/trailer as
a forklift travels from the loading dock onto the trailer; or to
create an obstruction noticeable to the truck driver, should
the driver accidentally try to pull the truck/trailer away
while it is being serviced.
The proper activation of the barrier and the locking
mechanism is monitored by:
• Visual Control
1 set of ashing green or red lights located at the inside
of the building for dock personnel and 1 set located
outside of the building for the truck driver. In addition to
the lights, there are 3 instruction signs.
• Audio Control
A horn will sound at the inside of the building, warning
dock personnel if there is not R.I.G. present, or if the
engagement is improper. In this case, the trailer must
be secured by other means (wheel chokes, etc.) prior
to servicing trailer.
Prerequisite for proper barrier engagement is that the
trailer is parked rmly against a 4in [102mm] (trade
standard) thick dock bumper. The activation/deactivation is
solely controlled from inside of the building by pressing the
Lock (raise) button or the Unlock (lower) button.
The normal mode of the hook is in the lower STORED
position, showing a ashing red light (trailer not secured)
at the inside of the building and a ashing green light
(trailer free to move to or away from the loading dock) at
the outside of the building.
Once the trailer is parked, the dock attendant will depress
the Lock button. This will raise the hook to engage the
R.I.G. As soon as the R.I.G. is properly locked, there will
be a simultaneous light change - the inside will change
from red to green ashing (trailer secured and supported)
and the outside will change from green to red ashing
(DO NOT move trailer). After the service is complete, the
dock attendant will have to depress the Unlock button
which then will return the hook to its lower STORED
position.
A proper hook engagement is achieved when the hook
raises unobstructed to fully trap the horizontal cross
member of the R.I.G. Assembly. An improper hook
engagement is if the horizontal cross member of the
R.I.G. is missing, obstructed or it is bent or located too
far from rear of trailer that it will prevent the free passage
of the hook. At this point, the trailer must be secured by
other means (example: wheel chocks) in order to become
serviceable.

Rite‑Hite®Owner's Manual Genisys™ GRH‑700™ Dok‑Lok®
Publication: AMEN00017 2018-05-17 5
SAFETY
Safety Identifications
DANGER
Indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
Indicates 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
Indicates a situation which can cause damage to the
equipment, personal property and/or the environment,
or cause the equipment to operate improperly.
NOTE:A note is used to inform you of important
installation, operation, or maintenance information.
Lockout Procedure
Barricade work area and post safety
warnings.
Power supply/control must:
• Be disconnected or locked in OFF
position using a lockout device
approved by local codes.
• Have signage that:
−Clearly states repairs are being made.
− Identies person responsible for lockout condition.
NOTE:Only this person should be able to remove
warnings and lockout device.
−Withstands environmental conditions (weather, wet,
and damp, etc.) and remains readable.
General
DANGER
A qualied electrician should install wiring in
accordance with local electrical codes.
Use lockout procedures to prevent death or severe
personal injury.
170619

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
6 Publication: AMEN00017 2018-05-17
FEATURES
A. Anchor Kit
B. Carriage Return Springs
C. Control Box
D. Control Harness
E. Drive Gear
F. Electric Motor Assembly
G. Hook
H. Inside Sign
I. Limit Switches
J. Lower Spring Bar
K. Outside Lights
L. Outside Signs
M. Roller Assembly
N. Roller Track Assembly
O. Slope Extension
P. Spring Covers
L
H
K
G
Inside
Sign
Caution
Sign
Anchor
Kit Outside Lights Control Box
With Horn
Roller Track
Assembly
Carriage Return
Springs
Spring
Covers
Roller
Assembly
Control Harness
Hook
Lower
Spring
Bar
Electric
Motor
Assembly
Limit
Switches
Drive
Gear
Slope
Extension
(NOTE: 12" CARRIAGE
SHOWN)
A
Shown:12" Carriage
Inside
Sign
Caution
Sign
Anchor
Kit Outside Lights Control Box
With Horn
Roller Track
Assembly
Carriage Return
Springs
Spring
Covers
Roller
Assembly
Control Harness
Hook
Lower
Spring
Bar
Electric
Motor
Assembly
Limit
Switches
Drive
Gear
Slope
Extension
(NOTE: 12" CARRIAGE
SHOWN)
J
Inside
Sign
Caution
Sign
Anchor
Kit Outside Lights Control Box
With Horn
Roller Track
Assembly
Carriage Return
Springs
Spring
Covers
Roller
Assembly
Control Harness
Hook
Lower
Spring
Bar
Electric
Motor
Assembly
Limit
Switches
Drive
Gear
Slope
Extension
(NOTE: 12" CARRIAGE
SHOWN)
M
F
N
B
E
I
D
O
P
C
Figure 1

Rite‑Hite®Owner's Manual Genisys™ GRH‑700™ Dok‑Lok®
Publication: AMEN00017 2018-05-17 7
ELECTRICAL
Control Harness
Low Voltage 12V Power 120V 1 Phase Power
Plug
Plug
Plug
Motor
Light
LS1
LS2
Bushing
Control Harness
locknut
with gasket
cord grip
bushing
control
harness
black
white
red
green
orange
white/black
orange/black
blue
LS2
(UNLOCK)
LS1
(LOCK)
green
blue/black
red/black
1
2
G
3
1
13
15
G
45
43
44
G
green
plug
G
45
43 44
120V 1 Phase Power
Low Voltage 12V Power
MOTOR
G
1
13
2
LS1
LS2
G
3
15
1
45
43
44
G
3
1
G
2
1
G
A
C
B
D
B
A
D
C
15
13
Locknut with
Gasket
Green
Red
White
Black
Green
Orange
White/Black
Green
Blue
Orange/Black
Blue/Black
Red/Black
Cord Grip
Figure 2

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
8 Publication: AMEN00017 2018-05-17
ELECTRICAL
Power-Board
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
RESTRAINT MOTOR
115V, 1PH, 50/60HZ
(230V, 1PH, 50/60HZ)
5.2 FLA, 0.25 HP;
OVLD SET AT 5.2 AMPS
(2.8 FLA, 0.25 HP;
OVLD SET AT 2.8 AMPS)
M
MF
MR
(44/J54)
(45/J53)
(43/J52)
FROM CUSTOMER MAIN POWER & SAFETY
PROTECTION DEVICE.
110-120v. 1PH. 60HZ./208-240v. 1PH. 50HZ.
USE 10.0A/5.0A DUAL ELEMENT TIME DELAY FUSE
(1L1)
(N)
(1L1)
(N)
DUMMY
L1
SEE NOTE 2
FUSED DISCONNECT
(BY OTHERS)
N
G
1FU1 1L1
N
SEE NOTE 7
LD2
LD1
LD9
LD8
LD7
LD10
K3
K2
K1
J3
J5
J7
J2
J11
M2
RSOL1
RSOL2
RSOL3
M1
+12VDC
POWER CIRCUIT BOARD
SEE DETAIL - "A"
10FU1
MOTOR
12FU1
SOLENOID
11FU1
PWR SUPPLY
J2
12V
(12V)
(12V)
(12V)
(12V)
(12V)
X1/L1
X2/N
M1
M2
MCOM
SCOM
12VDC
12VDC
12VDC
12VDC
12VDC
12VDC
RSOL1
RSOL2
RSOL3
J7-3
J7-2
J7-1
J2-6
J2-5
J2-4
J2-3
J2-2
J2-1
J3-2
J3-1
J5-4
J5-3
J5-2
J5-1
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
RESTRAINT MOTOR
115V, 1PH, 50/60HZ
(230V, 1PH, 50/60HZ)
5.2 FLA, 0.25 HP;
OVLD SET AT 5.2 AMPS
(2.8 FLA, 0.25 HP;
OVLD SET AT 2.8 AMPS)
M
MF
MR
(44/J54)
(45/J53)
(43/J52)
FROM CUSTOMER MAIN POWER & SAFETY
PROTECTION DEVICE.
110-120v. 1PH. 60HZ./208-240v. 1PH. 50HZ.
USE 10.0A/5.0A DUAL ELEMENT TIME DELAY FUSE
(1L1)
(N)
(1L1)
(N)
DUMMY
L1
SEE NOTE 2
FUSED DISCONNECT
(BY OTHERS)
N
G
1FU1 1L1
N
SEE NOTE 7
LD2
LD1
LD9
LD8
LD7
LD10
K3
K2
K1
J3
J5
J7
J2
J11
M2
RSOL1
RSOL2
RSOL3
M1
+12VDC
POWER CIRCUIT BOARD
SEE DETAIL - "A"
10FU1
MOTOR
12FU1
SOLENOID
11FU1
PWR SUPPLY
J2
12V
(12V)
(12V)
(12V)
(12V)
(12V)
X1/L1
X2/N
M1
M2
MCOM
SCOM
12VDC
12VDC
12VDC
12VDC
12VDC
12VDC
RSOL1
RSOL2
RSOL3
J7-3
J7-2
J7-1
J2-6
J2-5
J2-4
J2-3
J2-2
J2-1
J3-2
J3-1
J5-4
J5-3
J5-2
J5-1
<ELECTRICAL SCHEMATIC-PAGE1.EPS>
Figure 3

Rite‑Hite®Owner's Manual Genisys™ GRH‑700™ Dok‑Lok®
Publication: AMEN00017 2018-05-17 9
ELECTRICAL
Restraint Micro Board
<SHR 5000_SCHEMATIC.PDF>
Figure 4

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
10 Publication: AMEN00017 2018-05-17
ELECTRICAL
Restraint Micro Board Continued
<SHR 5000_SCHEMATIC(PG2).PDF>
Figure 5

Rite‑Hite®Owner's Manual Genisys™ GRH‑700™ Dok‑Lok®
Publication: AMEN00017 2018-05-17 11
ELECTRICAL
Wiring: Corner-Vu / Leveler-Vu
J7
VR1
J13
LVU RD
LVU GRN
CVU GN
CVU RD
(J124/LVGN)
(J123/LVRD)
(J122/CVGN)
(J121/CVRD)
(12V)
(12V)
(12V)
(12V)
J13-1
J13-2
J13-3
J13-4
J13-5
J13-6
J14-1
J14-2
J14-3
14-4
14-5
J16-1
J16-2
J16-3
J16-4
J16-5
J16-6
J17-1
J17-2
J12-6
J12-5
J12-4
J12-3
J12-2
J12-1
J15-5
J15-4
J15-3
J15-2
J15-1
J11-2
J11-1
N.O.
CR1
N.C.
N.O.
CR2
N.C.
J2-6
J2-5
J2-4
J2-3
J2-2
J2-1
LEVELER-VU LIGHT PAIR
GR
12VDC, 110mA
(BLU)
(BRN)
(BLK)
CORNER-VU LIGHT PAIR
GR
12VDC, 110mA
(BLU)
(BRN)
(BLK)
J2
12VDC
12VDC
12VDC
12VDC
12VDC
12VDC
MICRO CONTROL
CIRCUIT BOARD
RESTRAINT POWER CB
CORNER/LEVELER-VU WIRING
RITE-VU WIRE LABELS
ORIGINAL RELEASE
PLUG & PLAY
VERSION
12V 12V
IN3 PVDT
OUT0 CVRD
OUT1 CVGN
OUT2 PVLT
OUT3 LVRD
OUT4 LVGN
OUT5 PVAL
GNDCOM
<ELECTRICAL SCHEMATIC-PAGE4.EPS>
Figure 6

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
12 Publication: AMEN00017 2018-05-17
ELECTRICAL
Wiring: Pedestrian-Vu
Leveler Stored to Unlock Restraint
<RITE-VU_PED-VU STRD UNLK SCHEMATIC.PDF>
Figure 7

Rite‑Hite®Owner's Manual Genisys™ GRH‑700™ Dok‑Lok®
Publication: AMEN00017 2018-05-17 13
ELECTRICAL
Wiring: Pedestrian-Vu Continued
Leveler Stored to Close Overhead Door
<RITE-VU_PED-VU OHD STRD UNLK SCHEMATIC.PDF>
Figure 8

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
14 Publication: AMEN00017 2018-05-17
ELECTRICAL
Wiring: Outside Light Box
◄ To Controls
Red
Lamp
Green
Lamp
Light Box
Cover
#40 Wire
+12/VDC
Red Light
−OSR Term for Gen2
−OSR Term for URC
−40 Term for SDL
Green
Light
#41 Wire
+12/VDC
Green Light
−OSG Term for Gen2
−OSG Term for URC
−41 Term for SDL
#42 Wire
−Any pin on J2 term
−For Gen2
−OSPWR term
for URC
−42 term on SDL
Red
Light
Figure 9

Rite‑Hite®Owner's Manual Genisys™ GRH‑700™ Dok‑Lok®
Publication: AMEN00017 2018-05-17 15
OPERATION
WARNING
Before loading or unloading a vehicle at your
loading dock while using a Dok-Lok vehicle
restraint, always visually conrm barrier blocks
R.I.G. assembly. Secure trailer by other means, if a
condition occurs that cannot be xed by backing
trailer rmly against dock bumpers.
Area around R.I.G. assembly must be free of
plates or other obstructions.
Always operate Dok-Lok vehicle restraint from top
of dock.
Dok-Lok vehicle restraints should be operated by
authorized personnel who have read and
understand Owner’s Manual.
Contact your local Rite-Hite representative or
Rite-Hite (U.S.) [phone] with any questions.
Failure to follow these procedures could allow
unexpected trailer / loading dock separation,
resulting in death or serious injury.
WARNING
Power moving components. Serious injury could
occur.
Slip hazard: Do not use equipment
as a step.
Pinch hazard: Keep all extremities
away.

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
16 Publication: AMEN00017 2018-05-17
OPERATION
RESTRAINT DEFAULT STATUS
STATE POSITION
CONTROL BOX:
INSIDE LIGHTS, SOUND OUTSIDE LIGHTS
Restraint UNLOCKED/
STORED position.
Hook is in STORED position.
RED
GREEN
RESTRAINT POSITION CONTROL BOX
STATUS
OUTSIDE LIGHT
STATUS
INSIDE LIGHTS OUTSIDE LIGHTS
OUTSIDELIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
1
3
2
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additionalwarning labels,
manualsand other information
areavailable by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Checkoperation of DOK-LOK.
Vehicle may not be against dock.
R.I.G.may not be compatible.
Hooktravel may be obstructed.
Beforeusing "HORN OVERRIDE,"
securevehicle by other means.
Resetsystem by engaging "HORN
OVERRIDE"controlagain. Then repeat
"UNLOCK
"operation.
Whenin "HORN OVERRIDE" mode:
Bothred and green Lights flash. "LOCK" and
"UNLOCK"controls are not functional.
Horn can be silenced by engaging
"HORN OVERRIDE" control.
Beforeusing "HORN OVERRIDE," secure
vehicleby other means prior to entering.
Ifhorn and red light are on
after"UNLOCK" control is
pressed,hook may be held
byR.I.G.
To releasehook:
Back trailer up against dock.
Repeat "UNLOCK" operation.
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
Red (flashing)
Loading or unloading is
not permitted, since R.I.G.
is not locked.
Green (ashing)
A vehicle may pull
into or out of loading
bay.
Restraint LOCKING
(LOCK button pressed)
• Trailer has backed into loading
dock and is parked rmly against
dock bumpers.
• Hook rotates from STORED
position to entrap R.I.G.
If horn sounds, go to FAULT State
from LOCKING State if not, go to
Restraint LOCKED.
CAUTION
If trailer can not be restrained
due to a lift gate or other
obstruction that could
become damaged, go to
HORN OVERRIDE State.
RESTRAINT POSITION
OUTSIDE LIGHTS
OUTSIDE LIGHT
STATUS
INSIDE LIGHTS
GREEN
CONTROL BOX
STATUS
RED
OUTSIDELIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
1
3
2
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additionalwarning labels,
manualsand other information
areavailable by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Checkoperation of DOK-LOK.
Vehicle may not be against dock.
R.I.G.may not be compatible.
Hooktravel may be obstructed.
Beforeusing "HORN OVERRIDE,"
securevehicle by other means.
Resetsystem by engaging "HORN
OVERRIDE"controlagain. Then repeat
"UNLOCK
"operation.
Whenin "HORN OVERRIDE" mode:
Bothred and green Lights flash. "LOCK" and
"UNLOCK"controls are not functional.
Horn can be silenced by engaging
"HORN OVERRIDE" control.
Beforeusing "HORN OVERRIDE," secure
vehicleby other means prior to entering.
Ifhorn and red light are on
after"UNLOCK" control is
pressed,hook may be held
byR.I.G.
To releasehook:
Back trailer up against dock.
Repeat "UNLOCK" operation.
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
Red (steady)
Alerts operator that an
unsafe condition exists
while hook and support
cylinders are in transit.
Red (ashing)
Alerts truck driver
not to move.

Rite‑Hite®Owner's Manual Genisys™ GRH‑700™ Dok‑Lok®
Publication: AMEN00017 2018-05-17 17
OPERATION
RESTRAINT DEFAULT STATUS
STATE POSITION
CONTROL BOX:
INSIDE LIGHTS, SOUND OUTSIDE LIGHTS
Restraint LOCKED
When R.I.G. is entrapped by hook,
a LOCKED condition exists.
If during loading/unloading inside
light turns red and horn sounds,
press LOCK button to secure
R.I.G.
WARNING
Visually conrm Dok-Lok
barrier obstructs R.I.G. of
trailer being serviced, before
operating dock leveler.
RESTRAINT POSITION OUTSIDE LIGHT
STATUS
OUTSIDE LIGHTS
CONTROL BOX
STATUS
INSIDE LIGHTS
GREEN
RED
OUTSIDELIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
1
3
2
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additionalwarning labels,
manualsand other information
areavailable by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Checkoperation of DOK-LOK.
Vehicle may not be against dock.
R.I.G.may not be compatible.
Hooktravel may be obstructed.
Beforeusing "HORN OVERRIDE,"
securevehicle by other means.
Resetsystem by engaging "HORN
OVERRIDE"controlagain. Then repeat
"UNLOCK
"operation.
Whenin "HORN OVERRIDE" mode:
Bothred and green Lights flash. "LOCK" and
"UNLOCK"controls are not functional.
Horn can be silenced by engaging
"HORN OVERRIDE" control.
Beforeusing "HORN OVERRIDE," secure
vehicleby other means prior to entering.
Ifhorn and red light are on
after"UNLOCK" control is
pressed,hook may be held
byR.I.G.
To releasehook:
Back trailer up against dock.
Repeat "UNLOCK" operation.
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
Green (ashing)
Alerts operator a safe
condition exists.
Red (ashing)
Alerts truck driver
not to move.
Restraint UNLOCKING
(UNLOCK button pressed)
Hook travels from LOCKED
position to STORED position.
If horn sounds go to FAULT State
from UNLOCKING State.
RED
GREEN
RESTRAINT POSITION CONTROL BOX
STATUS
OUTSIDE LIGHT
STATUS
INSIDE LIGHTS OUTSIDE LIGHTS
OUTSIDELIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
1
3
2
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additionalwarning labels,
manualsand other information
areavailable by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Checkoperation of DOK-LOK.
Vehicle may not be against dock.
R.I.G.may not be compatible.
Hooktravel may be obstructed.
Beforeusing "HORN OVERRIDE,"
securevehicle by other means.
Resetsystem by engaging "HORN
OVERRIDE"controlagain. Then repeat
"UNLOCK
"operation.
Whenin "HORN OVERRIDE" mode:
Bothred and green Lights flash. "LOCK" and
"UNLOCK"controls are not functional.
Horn can be silenced by engaging
"HORN OVERRIDE" control.
Beforeusing "HORN OVERRIDE," secure
vehicleby other means prior to entering.
Ifhorn and red light are on
after"UNLOCK" control is
pressed,hook may be held
byR.I.G.
To releasehook:
Back trailer up against dock.
Repeat "UNLOCK" operation.
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
Red (steady)
Alerts operator that an
unsafe condition exists
while hook and support
cylinders are in transit.
Red (ashing)
Alerts truck driver
not to move.

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
18 Publication: AMEN00017 2018-05-17
RESTRAINT DEFAULT STATUS
STATE POSITION CONTROL BOX / INSIDE LIGHTS OUTSIDE LIGHTS
FAULT State from
LOCKING State
Hook cannot entrap R.I.G.
– R.I.G. could be located too
far from rear of trailer, bent,
obstructed or missing.
If trailer is parked rmly against
dock bumpers go to HORN
OVERRIDE state. If not, press
UNLOCK to clear fault, have trailer
back up and repeat Restraint
LOCKING.
RESTRAINT POSITION
OUTSIDE LIGHTS
OUTSIDE LIGHT
STATUS
INSIDE LIGHTS
CONTROL BOX
STATUS
RED
GREEN
OUTSIDELIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
1
3
2
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additionalwarning labels,
manualsand other information
areavailable by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Checkoperation of DOK-LOK.
Vehicle may not be against dock.
R.I.G.may not be compatible.
Hooktravel may be obstructed.
Beforeusing "HORN OVERRIDE,"
securevehicle by other means.
Resetsystem by engaging "HORN
OVERRIDE"controlagain. Then repeat
"UNLOCK
"operation.
Whenin "HORN OVERRIDE" mode:
Bothred and green Lights flash. "LOCK" and
"UNLOCK"controls are not functional.
Horn can be silenced by engaging
"HORN OVERRIDE" control.
Beforeusing "HORN OVERRIDE," secure
vehicleby other means prior to entering.
Ifhorn and red light are on
after"UNLOCK" control is
pressed,hook may be held
byR.I.G.
To releasehook:
Back trailer up against dock.
Repeat "UNLOCK" operation.
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
Red (ashing)
Horn (pulsing)
Alerts operator that trailer
is not locked.
Red (ashing)
Alerts truck driver
not to move.
FAULT State from
UNLOCKING State
Hook cannot rotate to
STORED position.
– Hook could be caught on R.I.G.
or another part of trailer.
Verify trailer is parked rmly against
dock bumpers. If not, press LOCK
to entrap R.I.G., have trailer
back up and repeat Restraint
UNLOCKING.
OPERATION

Rite‑Hite®Owner's Manual Genisys™ GRH‑700™ Dok‑Lok®
Publication: AMEN00017 2018-05-17 19
OPERATION
RESTRAINT DEFAULT STATUS
STATE POSITION CONTROL BOX / INSIDE LIGHTS OUTSIDE LIGHTS
HORN OVERRIDE State
DANGER
Before operating HORN
OVERRIDE, secure trailer
by other means.
(HORN OVERRIDE button
pressed after securing trailer by
other means)
An alternate means of securing
truck must be used if hook can not
capture R.I.G. (i.e. wheel chocks).
To return to STORED:
1. Press HORN OVERRIDE
button
2. Press UNLOCK button.
RESTRAINT POSITION
OUTSIDE LIGHTS
OUTSIDE LIGHT
STATUS
INSIDE LIGHTS
CONTROL BOX
STATUS
RED
GREEN
OUTSIDELIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
1
3
2
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additionalwarning labels,
manualsand other information
areavailable by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Checkoperation of DOK-LOK.
Vehicle may not be against dock.
R.I.G.may not be compatible.
Hooktravel may be obstructed.
Beforeusing "HORN OVERRIDE,"
securevehicle by other means.
Resetsystem by engaging "HORN
OVERRIDE"controlagain. Then repeat
"UNLOCK
"operation.
Whenin "HORN OVERRIDE" mode:
Bothred and green Lights flash. "LOCK" and
"UNLOCK"controls are not functional.
Horn can be silenced by engaging
"HORN OVERRIDE" control.
Beforeusing "HORN OVERRIDE," secure
vehicleby other means prior to entering.
Ifhorn and red light are on
after"UNLOCK" control is
pressed,hook may be held
byR.I.G.
To releasehook:
Back trailer up against dock.
Repeat "UNLOCK" operation.
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehicle may not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
OUTSIDE LIGHTS
Checkoutside lights when
bothLEDs are o.
UNLOCK
LOCK
HORN OVERRIDE
DOK-LOK®
DO NOT ENTER TRAILER
ENTER TRAILER
Visually inspect before loading/
unloading vehicle. DOK-LOK
hook must secure rear impact
guard. See warnings on side
panel.
Additional warning labels,
manuals and other information
are available by calling:
1-800-456-0600
If red light is on and/or horn
sounds, DOK-LOK is not
properly engaged.
Check operation of DOK-LOK.
Vehiclemay not be against dock.
R.I.G. may not be compatible.
Hook travel may be obstructed.
Before using "HORN OVERRIDE,"
secure vehicle by other means.
If horn and red light are on
after "UNLOCK" control is
pressed,hook may be held
by R.I.G.
To release hook:
Backtrailer up against dock.
Repeat"UNLOCK" operation.
Red (ashing)
Green (ashing)
Alerts operator trailer is
secured by other means.
Red (ashing)
Alerts truck driver
not to move.

Genisys™ GRH‑700™ Dok‑Lok®Owner's Manual Rite‑Hite®
20 Publication: AMEN00017 2018-05-17
MAINTENANCE
DANGER
When working with electrical or electronic
controls, make sure that power source has been
locked out and tagged according to approved
local electrical codes.
Post safety warnings and barricade work area, at
dock level and approach level, to prevent
unauthorized use of dock position.
WARNING
A safe work place requires all lights and horn to
be working properly. DO NOT use Dok-Lok vehicle
restraint if parts are broken or missing.
CAUTION
When lifting unit use a proper lifting device (crane,
jack). Lifting by hand may cause back injury.
NOTICE
Contact Rite-Hite if loading docks are exposed to
harsh environments (extreme climates, corrosive
chemicals, high usage, etc.). More frequent
maintenance may be required.
A Planned Maintenance Program (P.M.P.), customized to
your specic operation is available and recommended. For
a P.M.P., contact your local Rite-Hite representative.
NOTE:If a leveler is installed at the Dok-Lok vehicle
restraint location, it may be necessary to raise the leveler
before performing maintenance.
DANGER
B
A
When working under dock leveler platform or lip:
1. Install Safe-T-Strut™ with the assistance of
another person.
• Raise leveler until platform reaches its highest
position and lip extends. Maintain this position.
• (A) Have assistant insert the smaller end of the
Safe-T-Strut™ through hole in the middle of
leveler lip and place strut’s wider open end over
the base located on leveler’s front frame (B).
• Align the holes on the base and Safe-T-Strut™
so leveler may be secured with retaining pin
and safety clip.
• Release the pushbutton on powered levelers
allowing the Safe-T-Strut™ to rest on the
underside of lip.
NOTE:If you are unable to install the
maintenance support, contact your Rite-Hite
Service Representative or Rite-Hite Customer
Service at 1-414-355-2600.
2. Lockout and tag power supply.
• Turn off power to control box.
• Lock out and tag the main power source
• Barricade leveler at dock and approach levels
to prevent unauthorized use.
Safe-T-Strut™ removal:
• Have an assistant raise leveler to its highest
position with lip fully extended.
• Release safety clip and remove retaining pin.
• Lift the support off base.
• Return Safe-T-Strut™ to it's storage position.