Workrite Ergonomics Sierra SEHX7890-4272OC Series Programming manual

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Box1
Box2
Parts Included, Frame Set
Assembly & Installation Instructions:
Sierra 3-Leg Desk in a Box
SEHX7890-4272OC-XXX-XX-X
J4 mm Allen Wrench Qty: 1
SLeg Cable, 1 Meter Qty: 2
VPower cord Qty: 1
N#12 x 2" Flat Head Screw Qty: 2
PCable Spool Qty: 3
BRear Bracket Qty:2
BRear Bracket Qty:1
CConnector Bracket Qty: 1
CConnector Bracket Qty: 1
ALeg Qty: 2
ALeg Qty: 1
EShort Bracket Qty: 2
EShort Bracket Qty: 1
OControl Box Qty: 1
LCorner Foot Qty: 1
MFoot Glides Qty: 5
FLe End Bracket Qty: 1
GRight End Bracket Qty: 1
HCorner End Bracket Qty: 1
D#M6 × 12 mm Flat Head Cap Screw
Qty: 6
K#12 × ¾" Pan Head Laminate Top Screw
Qty: 61
TLeg Cable, 2 Meters Qty: 1
Q⁄" Cable Loops Qty: 15
I#M6 × 14 mm Flat Head Cap Screw
Qty: 30
R#8 × ⅝" Pan Head Screw Qty: 18
SStyle or Flat Foot Kit Qty: 1
W Standard or Programmable Switch
Qty: 1
Sold separately: Worksurface
0.4126"
#3 Drive
0.134"3/4"
0.216"
#12 Screw Size
or
or

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IMPORTANT NOTE!
You must complete initialization (Step 14) at the end of
assembly or your workcenter WILL NOT FUNCTION PROPERLY.
WARNING: Maximum loading of table assembly is 225 lb. (102 kg.). Maximum load includes
the weight of the table top itself, any equipment placed upon it, and any equipment suspended or hanging under
it. Loading should be evenly distributed over table surfaces. “Payload Capacity” is the Workrite Ergonomics
recommended maximum loading which includes the Workrite sourced worksurface.
Sierra 2-Leg
V = 120 VAC, 60 Hz / 4.25 A maximum
IMPORTANT SAFETY INSTRUCTIONS:
When using an electrical furnishing, basic precautions should always be followed, including the following:
Read all instructions before using this Sierra Workcenter.
DANGER:To reduce the risk of electric shock, always unplug this Sierra Workcenter from the
electrical outlet before cleaning.
WARNING:To reduce the risk of burns, fire, electric shock, or injury to persons:
1. Unplug from outlet before putting on or taking o parts.
2. Close supervision is necessary when this furnishing is used by, or near children, invalids, or disabled persons.
3. Use this furnishing only for its intended use as described in these instructions. Do not use attachments not
recommended by the manufacturer.
4. Never operate this furnishing if it has a damaged cord or plug, if it is not working properly, if it has been
dropped or damaged, or dropped into water. Return the furnishing to a service center for examination and
repair.
5. Keep the cord away from heated surfaces.
6. Do not use outdoors.
7. Do not operate where aerosol (spray) products are being used or where oxygen is being administered.
8. To disconnect, remove plug from outlet.
9. Each surface intended to support an equipment payload capacity of 225 pounds.
FOR COMMERCIAL USE ONLY
SAVE THESE INSTRUCTIONS

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1 Assemble Rear Brackets Set
Assemble Rear Brackets (Q) to Connector Bracket (R) using
#M6×12 mm Flat Head Cap Screws (S).
Use this guide to determine the correct holes for mounting
based on the width of your workcenter.
Tighten securely.
Note: Workrite Brackets can be
sized in 3" increments for any
non-Workrite top.
✓ Verify that you have all the tools needed for the assembly
You will need the following tools:
#2 tip Phillips screwdriver or drill/driver
#3 tip Phillips screwdriver or drill/driver
M4 tip bit or 4 mm Allen Wrench (E)
If you do not have a Workrite worksurface, you will also need:
⅛" pilot drill bit
3/32" pilot drill bit
or
Note: Brackets can be sized in 6"
increments for any non-Workrite top.
Connected Side,
Right Configuration Connected Side,
Le Configuration
When shown upside down, right will be on your le and vice-versa. Your frameset may dier.
To avoid stripping the threads, always
insert and make the first few turns
of the screw BY HAND with an Allen
wrench (E), ensuring it is in straight.
S#M6 × 12 mm Flat Head Cap Screw
Hardware at actual size
Note!
Only use the #M6 × 12 mm Flat
Head Cap Screw (S) for assembly.
61"
55"
49"
43"
S
S
S
S
E
Q
Q
Q
Q
Q
Q
Q
Q
R
R
R
R
52" Workcenters
58" Workcenters
64" Workcenters
70" Workcenters

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2 Attach Short & Medium Brackets
2.1 Attach Short Brackets (E) using #M6×14 mm Flat Head Cap Screws
(I) to all three Legs.
2.2 Attach Right End Bracket (G) to sides of the Right Leg (A) using #M6 × 14 mm Flat Head Cap Screws (I). Attach Le
End Bracket (F) to sides of the Le Leg (A) using #M6 × 14 mm Flat Head Cap Screws (I).
2.3 Attach Corner End Bracket (H) to the Center Leg (A) using #M6 × 14 mm Flat Head Cap Screws (I).
2.4 Attach both the Connected Rear Bracket (B & C assembled) and Floating Rear Bracket (B or B & C assembled)
using #M6 × 14 mm Flat Head Cap Screws (I).
Make sure the Connected Rear Bracket is
on the longer of the two sides.
Tighten securely.
Note: The Right End Bracket (G) will be on
your le when upside down.
Note: Le configurations will assemble as
a mirror image of these instructions.
Le Leg
Center Leg
Right Leg
Three piece
Connected Rear Bracket
B& Cassembled Floating Rear Bracket
Bor B& C
To avoid stripping the threads, always
insert and make the first few turns
of the screw BY HAND with an Allen
wrench (J), ensuring it is in straight.
Right End Bracket Le End Bracket
EI
I
I
II
I
I
B
J
I
I
E
E
H
A
A
F
G
A
Hardware at actual size
I#M6 × 14 mm Flat Head Cap Screw
Caution!
Only use the #M6 × 14 mm Flat Head
Cap Screw (I) for assembly.
Right configuration
44" & 48" configurations have a single Floating
Rear Bracket Bon the shorter side.
2.1
2.2
2.2
2.3 2.4
2.4
2.4
2.5
2.4
2.1
2.1
Le configuration
44" & 48" configurations

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Attach Base to Pre-Drilled Workrite Worksurface
If you have a non-Workrite worksurface, skip to Step 5
3.1 Position leg assembly to align mounting holes in brackets to pre-drilled holes in worksurface.
3.2 Attach at the six corner locations using #12×¾" Pan Head Laminate Top Screws (K). If you use an electric
screwdriver, be sure it is on the lowest torque setting to avoid stripping the holes in the top.
3.3 With frame set positioned and the six corner screws secure, attach the frame set using the remaining using
#12×¾" Pan Head Laminate Top Screws (K).
Skip to Step 5.
3
2 screws per
End Bracket
(2 installed in step 3.2)
3 screws per
Short Bracket
1 screw per
Corner End Bracket
(2 installed in step 3.2)
18 screws per
Connected Rear Bracket
6 screws per
Floating Rear
Bracket
K
K
K
K
K
K
K#12 × ¾" Pan Head Laminate Top Screw
Hardware at actual size
3.1
3.1
3.2
3.2
3.2
3.2
3.2
3.2
3.1
3.3
3.3
3.3

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Attach Base to Non-Workrite
Worksurface
4.1 Position Leg Assembly 2.875" from the
sides and 6.125" from the front of the
worksurface, making sure it runs parallel to
the back edge of the worksurface.
4.2 Use ⅛" drill bit to drill pilot holes at the six corner locations.
You may wish to mark your drill bit so you do not drill any
more than ¾" deep and damage your worksurface top.
Do not drill all the way through worksurface!
4.3 Attach at the six corner locations using #12×¾" Pan Head Laminate Top Screws (K). If you use an electric
screwdriver, be sure it is on the lowest torque setting to avoid stripping the holes in the top.
4.4 With frame set positioned and the six corner screws secure, drill pilot holes first then attach the frame set using
the remaining #12×¾" Pan Head Laminate Top Screws (K).
Do not drill all the way through worksurface!
>¾"
6.125"
23"– 30"
2.875"
2.875"
6.125" 23"– 30"
4Note: Avoid trip or tip hazards!
For uniquely shaped, non-standard worksurfaces, it is the installers
responsibility to position the worksurface to minimize extended
overhangs and position feet fully under the worksurface.
2 screws per
End Bracket
(2 installed in step 4.3)
3 screws per
Short Bracket
1 screw per
Corner End Bracket
(2 installed in step 4.3)
21 screws per
Connected Rear Bracket
6 screws per
Floating Rear
Bracket
K
K
K
K
K
K
4.1
4.3 4.3
4.4
4.4
4.4
4.4
4.4
4.3
4.3
4.3
4.3
4.2
4.2
4.2
4.2
4.2
4.2
4.1

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6 Attach Switch (Packaged Separately)
Install your switch (W) using two #8 × 5/8" Pan Head Screws (R).
Note that there are two Switch locations. Consider Cable length
when installing on large 3-Leg Workcenters. You may need to
mount the Switch on the side closest to the Control Box (O).
7 Loop Power Cord & Center Leg Cable through Strain Relief on Control Box
7.1 Loop the Power Cord (U) through the
strain relief channel on the bottom of
the Control Box (O) as shown. Leave 8” of
slack to route cord
7.2 Thread the 1 meter Leg Cable (S) from
the Center Leg through the cable channel
on the bottom of the Control Box as
shown. Leave 8" of slack to route cable.
7.3 Plug Power Cord (U) into power outlet AC
on the Control Box (O).
7.4 Plug Leg Cable (S) into port “3” on the
Control Box.
7.5 Lay the Control Box down in installation
location with cables in place.
5 Attach Feet & Install Foot Glides
5.1 Attach one Foot Glide (M) into Corner Foot (L).
5.2 Attach Corner Foot (L) to bottom of center leg (A)
with four #M6×14mm Flat Head Cap Screws (I) and
tighten securely.
5.3 Install outside feet (V) using eight #M6×14mm Flat
Head Screws(I) included with this Frame Set.
5.4 Attach the remaining Foot Glides (M) to bottom of
the Feet supplied in your Foot Kit.
Standard Switch
Programmable Switch
or
8"
8"
8"
8"
8"
8"
8"
8"
L
L
V
A
7.3
7.4
I
U
U
I#M6 × 14 mm Flat Head Cap Screw
Hardware at actual size
Note!
Only use the #M6 × 14 mm Flat Head
Cap Screw (I) supplied with Corner
Foot and Foot Kit for assembly.
O
M
M
I
M
O
S
S
7.2
7.1
Flat Foot shown
Programmable Switch shown
bottom
5.4
5.2
5.1
5.3
R
W

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Attach Control Box & Cable Spools to Worksurface
8.1 Position Control Box (O).
If you have a Workrite worksurface:
Locate the two pilot holes for the Control Box and proceed to Step 8.2.
If you do not have a Workrite worksurface:
Place Control Box (O) in position and use a pencil to mark pilot hole placement. Control Box should be placed
towards rear center of worksurface as shown. Remove Control Box and drill pilot holes where marked. Do not
drill all the way through tabletop!
8.2 With Control Box (O) positioned over pilot holes, attach with two #12 × 2" Flat Head Screws (N).
8.3 Attach Cable Spool (P) with the #12 × ¾" Pan Head Screw (K) to underside of worksurface. If you do not have a
Workrite worksurface, mount Cable Spools (P) in a convenient location between legs and control box.
8.4 Lay out Leg Cables (S & T) to be sure they all reach the Control Box.
8
P
P
T
S
P
K
K
K
NN
K#12 × ¾" Pan Head Laminate Top Screw
Hardware at actual size
OS
Switch
Cable
N#12 × 2" Flat Head Screw
Hardware at actual size
9.1
8.2
8.3
8.3
8.3
8.4
8.4
8.4

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Attach Cable Loops and Route Cables
9.1 Route cables as shown, using Cable Spools (P) to take up any slack. Use the 2 Meter Leg Cable (T) for the Leg
furthest from Control Box (O).
9.2 Attach Cable Loops (Q) to underside of worksurface using #8 × ⅝" Pan Head Screw (R) making sure to wrap the
Cable Loop around the cable prior to attaching. If you do not have a Workrite worksurface, attach cable loops in
convenient locations between legs or switch and the control box.
R#8 × ⅝" Pan Head Screw
S
S
S
S
T
T
T
Q
P
P
9
R
Q
O
Hardware at actual size
Switch Cable
Q
R
P
T
9.1
9.2
9.1
9.1
9.2

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Connect Leg Cables, Control Cable and Power Cord to Control Box
10.1 Connect the Right Leg Cable (S) to the port on the Right Leg (A) and port “1”on the Control Box (O). Connect the
Center Leg Cable (S) to the port on the Center Leg (A).
10.2 Insert the Switch Cable into port “A1” on the Control Box (O).
10.3 Connect 2 Meter Leg Cable (T) to the port on the Le Leg (A) then to port “2” on the Control Box (O)
O
O
S
10
Switch Cable into
Port “A1" T
Installed in
Step 7 Installed in
Step 7
10.3
10.2
10.3
10.1
10.1