RITE-HITE Dok-Guardian LD User manual

NOTICE TO USER . . . . . . . . . . . . . . . . . . .2
SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . .2
INSTALLATION
Preparation. . . . . . . . . . . . . . . . . . . . . . . . . 3
Change Orientation . . . . . . . . . . . . . . . . . . 4
Posts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Curtain . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Interlock/Interdeterrent (OPTIONAL) . . . . . .11
Electrical. . . . . . . . . . . . . . . . . . . . . . . . . . 12
OPERATION
Extend Barrier. . . . . . . . . . . . . . . . . . . . . . 16
Store Barrier . . . . . . . . . . . . . . . . . . . . . . . 16
MAINTENANCE
Planned Maintenance. . . . . . . . . . . . . . . . 17
Exterior Use . . . . . . . . . . . . . . . . . . . . . . . 17
Re-Tensioning Roller Assembly . . . . . . . . 18
PARTS
DGLD . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
DGLDCM . . . . . . . . . . . . . . . . . . . . . . . . . 22
Interdeterrent, Interlock and Latch . . . . . . 23
Curtain Lead Bar and Latch . . . . . . . . . . . 24
Interdeterrent Switch . . . . . . . . . . . . . . . . 25
Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . 26
WARRANTY . . . . . . . . . . . . . . . . . . . . . . .28
Language: English (Hazards: English, French)
Manual Part #: 54450038
Model #: DGLD, DGLDCM
Publication: AMEN00150 2019-11-13
Dok-Guardian™ LD
(Light Duty) Safety Barrier
Installation/Service/Owner's Manual

NOTICE TO USER
Thank you for purchasing a Rite-Hite product.
The Dok-Guardian Light Duty Safety Barrier is designed:
– to stop a 5500lb [2500kg] fork truck traveling at up to
2 miles per hour.
– with a tolerance of minus 6in [152mm] or
plus 5in [127mm].
The English version of this manual shall prevail over any
error in, or conicting interpretation of, any translations.
Rite-Hite reserves the right to substitute and/or modify
parts and drawings. If separate prints are included with the
unit, they supersede those contained in the manual.
For best results, have this product serviced by an
authorized Rite-Hite representative.
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.) 1-414-973-3625
or 1-888-456-3625, (S.A.) [phone],
(E.U.) [phone].
The Rite-Hite products in this manual are covered by one or more of the
following U.S. patents: 7207370, 7832451, 7775252, 6279276, 8490668,
7237591, 8087443, 8826963, and may be covered by additional pending
U.S. and foreign patent applications.
Manufactured by Rite-Hite Engineered Solutions Group, Inc.
SAFETY
Safety Identifications
DANGER
Indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
Indique une situation dangereuse qui, si elle n’est
pas évitée, peut entraîner la mort ou de graves
blessures.
WARNING / AVERTISSEMENT
Indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
Indique une situation dangereuse qui, si elle n’est
pas évitée, peut entraîner la mort ou des
blessures graves.
CAUTION / ATTENTION
Indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
Indique une situation dangereuse qui, si elle n’est
pas évitée, peut entraîner des blessures légères à
modérées.
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.
Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
2 Publication: AMEN00150 2019-11-13

SAFETY
General
WARNING / AVERTISSEMENT
Spring under tension.
DO NOT unwind the roller spring!
Ressort sous tension.
NE PAS dérouler le rouleaux à ressort!
CAUTION / ATTENTION
Barricade the work area until the unit(s) have been
completely installed.
Barricader la zone de travail jusqu'à ce que
l'unité(s) ont été complètement installé.
NOTICE
DO NOT install unit in areas that exceed 140°F [ 60°C].
INSTALLATION
Preparation
The Dok-Guardian LD is shipped to order.
If ordered/shipped correctly, go to
"Posts" (page 7).
If you need to alter the orientation from what was ordered/
shipped, go to "Change Orientation" (page 4).
Rite‑Hite®Installation/Service/Owner's Manual Dok‑Guardian™ LD Safety Barrier
Publication: AMEN00150 2019-11-13 3

INSTALLATION
Change Orientation
Storage Post
THE MOUNTING HOLES FURTHEST FROM OPENING ARE USED TO ATTACH THE
LATCH PLATE
REVERSAL OF OPERATION IS LIMITED TO STAND ALONE DGLD UNITS ONLY &
NOT APPLICABLE TO COMMON MEMBER UNITS WITHOUT ACQUISITION OF NEW
INTERMEDIATE POST(S).
B
A
C
C
1
2
G
Receiver Post
THE MOUNTING HOLES FURTHEST FROM OPENING ARE USED TO ATTACH THE
LATCH PLATE
REVERSAL OF OPERATION IS LIMITED TO STAND ALONE DGLD UNITS ONLY &
NOT APPLICABLE TO COMMON MEMBER UNITS WITHOUT ACQUISITION OF NEW
INTERMEDIATE POST(S).
F
D
THE MOUNTING HOLES FURTHEST FROM OPENING ARE USED TO ATTACH THE
LATCH PLATE
REVERSAL OF OPERATION IS LIMITED TO STAND ALONE DGLD UNITS ONLY &
NOT APPLICABLE TO COMMON MEMBER UNITS WITHOUT ACQUISITION OF NEW
INTERMEDIATE POST(S).
E
D
1
2
G
NOTICE
Reversal of operation is limited to stand alone
Dok-Guardian LD units only and not applicable to
common member units. Please contact your local
Rite-Hite representative or Rite-Hite technical support
for additional information.
To modify the Dok-Guardian posts to pull the curtain in the
opposite direction:
1. Separate the roller support (B) from the storage
post (A) by removing the 3 bolts, washers, and
nuts (C).
2. Turn the roller support completely upside down (1)
and set next to the opposite post (2).
3. Separate the latch bracket (E) from the receiver
post (F) by removing the 3 bolts, washers, and
nuts (D).
4. Turn the latch bracket completely upside down (1).
5. Position the latch bracket on the opposite post (2).
Use the mounting holes furthest from the center
opening (G) and refasten.
6. Position the roller support on the opposite post (F)
and refasten using 3 bolts, washers and nuts.
Figure 1
Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
4 Publication: AMEN00150 2019-11-13

INSTALLATION
Change Orientation Continued
Curtain Lead Bar
H
H
NOTE:Pin orientation does not
change for either pull direction. Legs
of handle and legs of pin must always
point to one another.
Left to Right Pull
NOTE:
Interdeterrent
magnet is behind
washer in both
orientations.
Right to Left Pull
7. Remove screw, nut and magnet from bar (H).
Feed screw for magnet through opposite side
and re-assemble.
Figure 2
Rite‑Hite®Installation/Service/Owner's Manual Dok‑Guardian™ LD Safety Barrier
Publication: AMEN00150 2019-11-13 5

INSTALLATION
Change Orientation Continued
Interlock Assembly (if equipped)
Receiver Post
Interlock Assembly
Latch Bracket
Left to Right Pull Right to Left Pull
L
K
I
J
L
J K
I
Back Side
8. Follow order in Figure 4 to flip zinc plate (I) end over
end and swap/relocate interlock actuator (J) and flat
screws (K). Reverse order to refasten.
NOTE:
• Circuit board (L) is centered and does not get moved.
• DO NOT overtighten nylock nuts. Actuator should have
freedom of movement.
• Nylock nuts (provided with actuator) nish ush with the
screw end (M).
1
9745
6
10 11
12
Shown: Back Side (Left to Right pull).
M
2
Flush
8
M
Side View Bottom View
ORDER #QTY DESCRIPTION
1st
(2 places)
1 1 SHROUD,SW,INTRLCK,10MM,DKGRDN
2 2 SCR,RHMS,PHLP,#8-32X1,ZNC
3 2 NUT,HEX,SERRATED,#8-32X1/8",Z
2nd 4 1 PCB,ACTUATOR,DOK-GUARDIAN
5 2 STANDOFF,NYLON,PCB,ADHSV,1/4"
3rd
6 1 ACTR,12VDC,10MM,5MM/S,45N
7 1 LVR,LINKAGE,INTRLCK,DKGRDN
8 2 SCR,RHMS,PHLP,#8-32X3/4,ZNC
9 1 SHAFT, INTRLCK, STOP, 10MM, DKGRDN
4th
10 1 PLATE,INTRLCK,MNT,10MM,DKGRDN
11 4 WSHR,LOCK,SPLIT,#10,ZNC
12 4 SCR,RHMS,PHLP,#10-24X1/2,ZNC
5th 13 2 SCR,FHMS,SCKT,5/16-18X1
Figure 3
Figure 4
Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
6 Publication: AMEN00150 2019-11-13

INSTALLATION
Posts
Footprint: Standard
15.750in
400.05mm
10.750in
273.05mm
A
B
D
E1 E2
C
Footprint: Common
15.750in
400.05mm
10.750in
273.05mm
15.750in
400.05mm
10.750in
273.05mm
15.750in
400.05mm
10.750in
273.05mm
15.750in
400.05mm
10.750in
273.05mm
Receiver PostStorage Posts
First Unit "A" Middle Unit(s) "B"
Multiple units may be labeled "B"
End Unit "C"
Reference the survey drawing completed by the
salesperson if it is available.
The back of the unit (near the roller) is labeled with the
width of each curtain and (for common footprints) a letter.
1. The back side of all posts should be flush (A) and
measure the same distance (B) from the dock edge or
equipment it is protecting (C).
Position the inside edge of the posts even with the
door jamb and the backs at least:
• 17in [432mm] from the dock edge (B), for units up to
11ft-5in [3.48M] C.O.W.* (D)
• 30in [762mm] from the dock edge (B), for units
11ft-6in [3.5m] C.O.W and greater. (D)
Ensure the placement of the posts do not interfere
with any door operation.
Footprint: Standard, go to Step 5.
(i.e.1 Storage (E1), 1 Receiver (E2)).
Footprint: Common, go to Step 2.
2. Unit "A": Position to begin the chain. The C.O.W.
between unit "A" and the first "B" unit must be within
5in [127mm] of the width dimension indicated on the
back side of unit "A".
3. Unit "B": Center each unit in the space available
between the respective doors being serviced.
Arrange, in correct sequence, any "B" units that vary
in C.O.W. Ensure the C.O.W. between the units is
within 5in [127mm] of the width dimension indicated
on the back side of each unit's respective storage unit.
4. Unit "C": Position unit "C" and the latch side post to
end the chain. Ensure the C.O.W. between unit "C"
and the latch side post is within 5in [127mm] of the
width dimension indicated on the back side of unit "C".
5. After the units are within their respective service ranges,
shim the posts as necessary to be plumb and level.
6. Complete "Anchoring to Concrete*" (page 8).
Figure 5
*C.O.W.= Clear Opening Width
Rite‑Hite®Installation/Service/Owner's Manual Dok‑Guardian™ LD Safety Barrier
Publication: AMEN00150 2019-11-13 7

INSTALLATION
Posts Continued
Anchoring to Concrete*
The Dok-Guardian Light Duty Safety Barrier requires a
minimum concrete thickness of 6.75in [170mm] to provide
proper unit support.
Tools Required:
• Hammer drill with 1/2in x 7in concrete drill bit
• Impact wrench (65ft-lbs [88Nm]) with 3/4in impact socket
1. Tighten all rails and brackets securely before
anchoring the system to concrete.
2.
Titan HD Concrete Anchor Installation Instructions
Tools Required:
Hammer Drill with ¾” x 8” Concrete Drill Bit
Impact Wrench with 1-1/8” Impact Socket
Installation:
Drill a ¾” Diameter hole in the concrete. The hole should be drilled a minimum of 8” deep
or completely through the concrete.
Using a drill bit that is too small or excessively worn will make it very hard to install the
anchor. Using a drill bit that is too large will reduce the anchors load capacity.
Use compressed air to blow the concrete dust out of the hole. If this is not done, you may
not be able to tighten the anchor completely.
Using the Impact wrench and 1-1/8” socket, install the anchor through the base plate and
into the hole you drilled into the concrete.
Securely tighten all anchors with the impact wrench. Make sure the hex washer head is in
contact with the base plate.
Position the safety barrier in its
intended position. Use the base
plates of the post as a template
and drill (6) 1/2in diameter holes a
minimum of 7in [178mm] deep (or
completely through the concrete).
– Drill the appropriate size hole in
the concrete per anchor being
used. The hole should be drilled
a minimum of 1in [25mm] deeper
than the length of the anchor or
completely through the concrete.
– Using a drill bit that is too small or
excessively worn will make it very
hard to install the anchor. Using a
drill bit that is too large will reduce
the anchor's load capacity.
3.
Titan HD Concrete Anchor Installation Instructions
Tools Required:
Hammer Drill with ¾” x 8” Concrete Drill Bit
Impact Wrench with 1-1/8” Impact Socket
Installation:
Drill a ¾” Diameter hole in the concrete. The hole should be drilled a minimum of 8” deep
or completely through the concrete.
Using a drill bit that is too small or excessively worn will make it very hard to install the
anchor. Using a drill bit that is too large will reduce the anchors load capacity.
Use compressed air to blow the concrete dust out of the hole. If this is not done, you may
not be able to tighten the anchor completely.
Using the Impact wrench and 1-1/8” socket, install the anchor through the base plate and
into the hole you drilled into the concrete.
Securely tighten all anchors with the impact wrench. Make sure the hex washer head is in
contact with the base plate.
Use compressed air to clean the
drilled hole so you can tighten the
anchor completely.
4.
Titan HD Concrete Anchor Installation Instructions
Tools Required:
Hammer Drill with ¾” x 8” Concrete Drill Bit
Impact Wrench with 1-1/8” Impact Socket
Installation:
Drill a ¾” Diameter hole in the concrete. The hole should be drilled a minimum of 8” deep
or completely through the concrete.
Using a drill bit that is too small or excessively worn will make it very hard to install the
anchor. Using a drill bit that is too large will reduce the anchors load capacity.
Use compressed air to blow the concrete dust out of the hole. If this is not done, you may
not be able to tighten the anchor completely.
Using the Impact wrench and 1-1/8” socket, install the anchor through the base plate and
into the hole you drilled into the concrete.
Securely tighten all anchors with the impact wrench. Make sure the hex washer head is in
contact with the base plate.
Use an impact wrench and 3/4in
socket to install the (provided)
1/2in x 6in Titen HD concrete
anchors through base plate and into
the holes drilled into the concrete.
5.
Titan HD Concrete Anchor Installation Instructions
Tools Required:
Hammer Drill with ¾” x 8” Concrete Drill Bit
Impact Wrench with 1-1/8” Impact Socket
Installation:
Drill a ¾” Diameter hole in the concrete. The hole should be drilled a minimum of 8” deep
or completely through the concrete.
Using a drill bit that is too small or excessively worn will make it very hard to install the
anchor. Using a drill bit that is too large will reduce the anchors load capacity.
Use compressed air to blow the concrete dust out of the hole. If this is not done, you may
not be able to tighten the anchor completely.
Using the Impact wrench and 1-1/8” socket, install the anchor through the base plate and
into the hole you drilled into the concrete.
Securely tighten all anchors with the impact wrench. Make sure the hex washer head is in
contact with the base plate.
Securely tighten all anchors to
65ft-lbs [88Nm] with the impact
wrench. Make sure the hex washer
head is in contact with the base plate.
6. Repeat this process for all of the concrete anchors on
the post.
*Image credits: Titen HD Concrete Anchor instructions (strongtie.com)
Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
8 Publication: AMEN00150 2019-11-13

INSTALLATION
Curtain
WARNING / AVERTISSEMENT
Spring under tension.
DO NOT unwind the roller spring!
Ressort sous tension.
NE PAS dérouler le rouleaux à ressort!
Adjustment
Curtain must be adjusted after posts are secured in place.
1. Loosen the bolts slightly on the latch bracket and
slide the latch bracket towards the storage post until
it stops.
2. At the storage post, grasp the steel handle of the
curtain lead bar and walk the curtain across the
opening.
3. Secure the curtain lead bar into the latch bracket on
the receiver post.
4. Return to the back side of the storage post.
If the round retaining bar is installed in the closest
available set of pockets to the units slotted opening,
go to "Latch Bracket Adjustment" on page 10.
If not, go to "Moving Retaining Bar" on page 9.
Moving Retaining Bar
A
B
1. Working from the back side of the storage post,
mark the roller tube at top of the curtain for vertical
placement.
2. Backwind the roller tube. Lock the roller with a
screwdriver, by inserting the screwdriver through
the hole in the top of the storage support (A) and 1
of the slots (B) in the roller tube concurrently. Note
the direction the curtain is wrapped and completely
remove the curtain from the roller tube while leaving
inserted in the storage post slot.
3. Ensure the square latch bar is still engaged in the
latch bracket. Pull the curtain evenly taut, towards the
roller tube until the curtain face is vertical.
4. Determine the first available pocket that would
accommodate the round retainer bar. Mark the
vertical set of desired pockets.
5. Unlatch the square latch bar from the receiver post,
allowing slack to be pulled from the back of the
storage post.
NOTE:Do not remove curtain slot in the storage post.
6. Place on a clean flat surface with access to the
desired pocket.
7. Move the round retainer bar from its shipped position
into the pocket location determined in Step 4. Ensure the
retainer bar is positioned vertically through all 3 pockets.
8. Secure the retainer bar at each pocket using a tek
screw.
9. Return the square latch bar to the latch bracket on
the receiver post.
10. At the storage post (while observing the vertical
placement marked on the roller tube from Step 1 and
the wrap direction noted in Step 2) return the curtain
to the roller tube. Fasten the end of the curtain to the
roller tube using the hook and loop fastener.
11. Carefully remove the screwdriver holding the roller
tube and slowly releasing the spring energy.
12. Cycle the curtain in and out at least 3 times to re-seat
the curtain on the roller tube.
Figure 6
Rite‑Hite®Installation/Service/Owner's Manual Dok‑Guardian™ LD Safety Barrier
Publication: AMEN00150 2019-11-13 9

INSTALLATION
Curtain Continued
Latch Bracket Adjustment
A B
NOTE:Curtain may stretch with use. Verify there is a maximum gap
of 1/2in [13mm] – 2in [51mm] at full curtain extension. See "Planned
Maintenance" on page 17.
1. At the receiver post, ensure the innermost face of
the curtain lead bar (B) extends no more than 1/2in
[13mm] – 2in [51mm] beyond the outermost edge
of the cup (A) on the slotted latch bracket. If not,
the slotted latch bracket offers lateral adjustment to
decrease this distance.
2. After the desired distance is set, tighten the bolts on
the latch bracket.
3. If the distance needs to be increased, the latch
bracket must be moved to the alternate set of holes
and repeat "Latch Bracket Adjustment".
Tensioning
If the top of the curtain “sags” or seems to be loose:
1. Angle the curtain attachment on the roller so the top
of the curtain is pulled slightly tighter. With the curtain
pulled out and engaged, unroll the rest of the curtain
until the touch and hold fastener is accessible.
2. Lock the roller with a screwdriver, by inserting the
screwdriver through the hole in the top of the storage
support (A) and 1 of the slots (B) in the roller tube
concurrently.
3. Remove the curtain from the roller and angle the
curtain so the top of the curtain is slightly tighter. Hold
the roller while removing the screwdriver. Let the
curtain roll up slowly.
4. Disengage the curtain from the latch bracket and roll
the unit up 2 or 3 times. Engage the unit to see if the
curtain is tighter.
5. Repeat to add more angle, if necessary.
Figure 7
Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
10 Publication: AMEN00150 2019-11-13

INSTALLATION
Interlock/Interdeterrent (OPTIONAL)
A. Curtain Lead Bar
B. Switch
C. Latch Bracket
D. Interlock Assembly
E. Magnet
F. Control Box
A
B
C
F
E
D
Shown: Left mount unit with Left to Right pull.
Interlock/Interdeterrent Switch
1. Determine the correct location of latch bracket (C) on
post to have the curtain provide the proper stopping
distance from impact.
2. Ensure concentricity of magnet and large circular hole
in latch bracket (E).
3. Remove curtain lead bar (A).
4. Using latch bracket (C) as a template, drill a
1/2in [13mm] hole through the post (not shown) to
pass the threaded body of the switch (B) to the back
side of the post.
5. Install switch (B) in hole leaving the sensing face
minimally recessed from the front surface of
latch bracket (C).
6. Wire switch (B) to options module on trailer restraint.
Interlock (Actuator) Assembly
1. Drill 1/4in [6.4mm] hole through the post near the
back side of interlock assembly (D) avoiding the
potential obstruction of any interlock assembly
components.
2. Mount the interlock assembly (D) to the
latch bracket (C) using 2 screws provided.
3. Feed wires through hole drilled in Step 1 and wire
interlock assembly (D) to options module on trailer
restraint.
4. Mount the power supplied control box (F) in a
convenient location on the back of post or on the wall.
5. Repeat steps as necessary for common post units.
Figure 8
Rite‑Hite®Installation/Service/Owner's Manual Dok‑Guardian™ LD Safety Barrier
Publication: AMEN00150 2019-11-13 11

INSTALLATION
Electrical
Interlock UCR Controls (OPTIONAL)
<1203E001.pdf>
Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
12 Publication: AMEN00150 2019-11-13

INSTALLATION
Electrical
Interlock Gen2 Controls (OPTIONAL)
<1203E001.pdf>
Rite‑Hite®Installation/Service/Owner's Manual Dok‑Guardian™ LD Safety Barrier
Publication: AMEN00150 2019-11-13 13

INSTALLATION
Electrical
Interdeterrent UCR Controls (OPTIONAL)
<1203E001.pdf>
Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
14 Publication: AMEN00150 2019-11-13

INSTALLATION
Electrical
Interdeterrent Gen2 Controls (OPTIONAL)
<1203E001.pdf>
Rite‑Hite®Installation/Service/Owner's Manual Dok‑Guardian™ LD Safety Barrier
Publication: AMEN00150 2019-11-13 15

OPERATION
Storage Post Receiver Post
STORAGE SIDE WARDEN.
AS LEFT TO RIGHT PULL
RECEIVER SIDE WARDEN.
AS LEFT TO RIGHT PULL
STORAGE SIDE WARDEN.
AS LEFT TO RIGHT PULL
RECEIVER SIDE WARDEN.
AS LEFT TO RIGHT PULL
A1
A2
Shown: Left mount unit with left to right pull. A right to left pull would
have the posts reversed and use the right post as storage and the left
post as receiver.
Extend Barrier
1. At the storage post, grasp the steel handle of the
curtain and walk curtain across the opening.
2. Latch the curtain lead bar attached to the end of the
curtain (A1) into the latch bracket (A2) at the opposite
side of the opening.
3. Ensure the curtain lead bar is fully engaged in latch
bracket.
NOTE:Because the pull force may be up to 50lb [23kg],
perform this operation with straight motions (do not twist
the body).
Store Barrier
1. Grasp the steel handle of curtain and release from the
latch bracket.
2. Walk the curtain back to opposite side of the opening
while supporting the curtain (to allow the curtain to
properly roll up).
3. Release the handle only when the curtain and curtain
lead bar are secured inside the storage post.
Figure 9
Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
16 Publication: AMEN00150 2019-11-13

MAINTENANCE
Planned Maintenance
CUSTOMER:SALES ORDER #: SERIAL #: DATE:
P.M. IN DAYS
1 30 90 INSPECT AND PERFORM THE FOLLOWING:
  –Cycle the unit. Inspect unit for damage from impact.
  –Look for tears in the curtain or steel that is bent or damaged.
––Ensure the concrete anchors are tight. Tighten with impact wrench.
––Latch the curtain in the protected position. Press against the curtain and make sure that the curtain travel is restricted before
4in [102mm] of curtain is allowed to unroll from the roller assembly.
––Unlatch the curtain and allow it to be rolled up by the roller assembly. Watch for any binding or loose edges on the curtain
that may get caught or inhibit the curtain from properly rolling up.
––Replace curtain if sewing becomes frayed or if there is signicant damage to the mesh.
––Clean the unit as necessary to maintain high visibility.
– – Curtain may stretch with use. Verify there is a maximum gap of 1/2in [13mm] – 2in [51mm] at full curtain extension.
See "Latch Bracket Adjustment" on page 10.
Exterior Use
When used in an exterior environment, additional
maintenance may be required, such as:
• Lubricating the roller bushing, checking the stitching of
the curtain, and checking for debris
• Additional lubrication, if the curtain is di󰀩cult to pull out
or the retraction of the curtain slows down
• Disassembling the roller and lubricating the spring
• The curtain replaced at shorter intervals due to
additional weathering
Rite‑Hite®Installation/Service/Owner's Manual Dok‑Guardian™ LD Safety Barrier
Publication: AMEN00150 2019-11-13 17

MAINTENANCE
Re-Tensioning Roller Assembly
WARNING / AVERTISSEMENT
Spring under tension.
DO NOT unwind the roller spring!
Ressort sous tension.
NE PAS dérouler le rouleaux à ressort!
The spring roller assembly comes from the factory
pretensioned. In normal use, the roller assembly will
not need adjusting or re-tensioning. Use the following
procedure only if the roller assembly is allowed to unwind.
1. Find a medium sized screwdriver to help hold tension
on the assembly when the spring is wound.
2. Ensure both ends of the roller assembly are securely
held in the roller holder.
3. Find the label on the roller indicating the direction the
roller will need to be wound.
4. Wind the roller 15 revolutions in the direction indicated.
NOTICE
DO NOT wind the roller assembly more than 18
revolutions or damage to the torsion spring will occur.
5. While holding tension on the roller assembly, insert
the screwdriver into the small hole on the top of the
roller assembly and down into 1 of the 2 holes in the
roller tube. Make sure the screwdriver is inserted
securely before letting go of the roller tube.
6. Insert the back side of the curtain through the slot in
the storage support post and install the curtain on the
roller tube with the touch and hold fastener. Center
the curtain vertically. The reinforcement straps on
the curtain should be visible from the inside of the
Dok-Guardian.
7. With 1 person supporting the curtain, remove the
screwdriver that is holding the spring tension. Allow
the curtain to slowly and carefully roll around the roller
until the pockets for the retaining bar touch the roller.
Insert the screwdriver in the hole to hold tension on
the spring assembly.
8. Insert the retaining bar into the pockets in the curtain.
Center the retaining bar on the curtain vertically.
Position the retaining bar to the back side of the
pockets and self drill/tap screw through the curtain
top and bottom strap into the retaining bar to hold the
retaining bar securely attached to the curtain.
9. Remove the screwdriver and carefully allow the
curtain to continue to roll up.
Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
18 Publication: AMEN00150 2019-11-13

Rite‑Hite®Installation/Service/Owner's Manual Dok‑Guardian™ LD Safety Barrier
Publication: AMEN00150 2019-11-13 19

PARTS
DGLD
DGLD
ITEM QTY. PART NUMBER Description
1 1 SEE TABLE
Curtain DGLD,X'X" to X'X" Clear Width Opening
2 1 67202002 RLR,ASSY,DOK-GUARDIAN
3 1 12420026 BAR,RETAIN,STORAGE,DOK-GRDN
4 3 67860001 SCR,HWH,DR/TP,1/4-14X1-1/4
5 2 67860101 SCR,HWH,DR/TP,1/4-14X1
6 1 65650013 POST,LEFT,DOK-GRDN LD
7 1 72600075 SPRT,RLR STORAGE,DOK-GRDN LD
8 9 65300028 PLUG,PLSTC,YLW,9/16
9 3 67900060 SCR,HHMS,1/2-13X1-1/4,Z5
10 6 74150001
WSHR,FLAT,1/2X1-3/8X7/64,ZNC
11 6 55650004
NUT,HEX,NYL LOCK,1/2-13,ZNC
12 1 53850622 LABEL,BARRIER,DOK-GUARDIAN LD
13 1 1041 BAR,ASSY,CURT,RECEIVER
14 3 67900048 BLT,CARG,1/2-13X1-1/2,Z5
15 1 65650014 POST,RGT,DOK-GRDN LD
16 8 11230006 ANCHOR,CONCRETE,HH,1/2X6,ZINC
17 A/R 54270036 LIGHT,DOK LOK,ASSY,12/24V LED
18 A/R 17250203 CBOX,DOK-GUARDIAN,LIGHT COMM
3
42
1
5
15
14
8
11
16
6
7
10
10
11
18
17
13
12
9
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Dok‑Guardian™ LD Safety Barrier Installation/Service/Owner's Manual Rite‑Hite®
20 Publication: AMEN00150 2019-11-13