OSI ALLEGRO 6800 Operating instructions

ALLEGRO™ 6800
MOBILE IMAGING TABLE
MAINTENANCE and REPAIR MANUAL
30031 Ahern Avenue
Union City, CA 94587-1234
Bus: 510-429-1500 Toll Free: 800-777-4674 Fax: [phone]
OSI 2002 NW0391 Rev.A

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TABLE OF CONTENTS
SECTION 1. INTRODUCTION
General Description ..................................................................................3
Specifications ............................................................................................3
SECTION 2. COTROLS INDENTIFICATION
Table Orientation.......................................................................................4
Model Number & Serial Number..............................................................4
SECTION 3. BASIC OPERATION
Control Operation .....................................................................................5
Floor Lock ................................................................................................5
Hand Pendant.............................................................................................5
Table Top Home ........................................................................................6
Joystick: Table Top Translation................................................................6
SECTION 4. INSPECTION
Acceptance and Transfer ......................................................................... 8
Preoperative ..............................................................................................8
Postoperative ............................................................................................8
Annually ................................................................................................... 8
SECTION 5. THE ELECTRICAL SYSTEM
Description ...............................................................................................9
On/Off Circuit Breaker Switch .................................................................9
Component Circuit Breakers .....................................................................9
Power Cord................................................................................................9
Floor Lock System ....................................................................................9
SECTION 6. CLEANING
Maintenance ............................................................................................11
Cleaning and Disinfecting.......................................................................11
Lubrication...............................................................................................12
Table Storage ............................................................................................12
SECTION 7. PRE-OP. FUNCTION CHECK
PRE-OP. Function Check........................................................................13
SECTION 8. GLOSSARY of TERMS
Basic assumptions of Patient Orientationon the tabletop.......................15
SECTION 9. TROUBLESHOOTING
Electrical System....................................................................................16
SECTION 10. REMOVAL and REPLACEMENT of COMPONENTS
Floor-lock Foot Replacement ..................................................................17
Tilt Sensor-Actuator ........………………………………………………19
Stepper-controller Tray...........................................................................21
10 Amp Motor-control ...........................................................................23

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SECTION 11. TECHNICAL DRAWINGS and PARTS LISTS
6800 Allegro Table Interconnect Diagram.............................................24
Table Assembly Bill of Materials...........................................................25
Table Assembly Exploded View............................................................26
Base Cover Assembly Exploded View...................................................27
Rear Base Cover Assembly Exploded View..........................................28
Table Base Assembly Exploded View...................................................29
X -Ring Assembly Exploded View .......................................................30
Y -Ring Assembly Exploded View .......................................................31
Y -Ring Assembly Bottom View ..........................................................31
X -Y Coupler Assembly Exploded View ..............................................32
X -Y Coupler Assembly Bottom View .................................................33
Replacement / Spare Parts List………………..………….…………….34
SECTION 12. OSI TECHNICAL SERVICE
Contact for Parts and Service...................................................................35
IMPORTANT NOTICES
CAUTION: To ensure safe operation of the equipment, please READ THESE
INSTRUCTIONS COMPLETELY and keep this manual readily available to OR personnel for
future reference.
Carefully observe and comply with all warnings, cautions and instructions placed on the
equipment or described in this manual.
In this manual, the WARNING symbol is intended to alert the user to the presence of
important operation, maintenance, or safety instructions.
WARNING
Proper preoperative and intra-operative procedures must be followed to prevent
venous stasis and pooling, pressure sore development, neuropathy, improper
electro surgical tissue grounding, hypertension and hypothermia.
NOTE: The application techniques outlined in these instructions are the manufacturer’s
suggested techniques. The final disposition of each patient’s care as related to the use of this
equipment rests with the attending physician.
This device is to be used by trained personnel only.

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1.0 INTRODUCTION
General Description
The 6800 Imaging Table is designed to safely hold a patient in the proper position undergoing
radiographic or surgical procedures.
It is a stand-alone, single-pedestal electrically operated table designed to position a patient in a
prone, lateral or supine position during radiographic or surgical procedures. The table has four
primary electrically powered functions; up/down, left/right lateral tilt, Trendelenburg/Reverse
Trendelenburg tilt and X-Y cross translation. Electromechanical actuators and electric stepper
motors perform these motions.
The table is controlled by means of a low voltage hand pendant control with functions clearly
labeled. A joystick device controls the X-Y translations of the tabletop. Positive floor locks are
employed to stabilize the table in the operating location.
Specifications
The table is designed to safely hold up to a 450-pound patient in the proper procedural position
at any point within its physical range. The table has a height range of 30 to 40 inches. The width
of the tabletop is 21 ½ inches. The length of the tabletop is 86 inches. The lateral tilt range is
+/-20 degrees and the Trendelenburg range is +/-15 degrees. The longitudinal travel of the
Model 6800 is 20 inches at speeds of 2 or 4 inches per sec maximum and the lateral travel is 10
inches at a speed of 2 inches per second maximum. The maximum deflection of the tabletop
under full load is less than 1 inch at the cantilever end. The tabletop has a radiolucent
equivalency of less that 1-mm of aluminum. The input power requirement is 110 VAC, 60Hz or
220 VAC 60 Hz as indicated on the table label. This is a Class B Medical Device with an IPX-0
Rating.
Figure 1.1-Allegro Table General Layout

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2.0 CONTROLS IDENTIFICATION
Table Orientation
The major components of the Model 6800 and control panel are identified in Figure 2.1. The
patient’s head can be located at either end of the table depending on the procedure. Therefore,
the table is described as having a Pedestal End and a Cantilever End. The On/Off Switch, Floor
Lock Buttons and the Power Cord are located at the Pedestal End of the table.
Figure 2.1-Controls Identification
Model Number and Serial Number
The model number and serial number are printed on the identification label on the Pedestal End
of the base.
Figure 2.2-Serial Number/Model Number/Identification Label
Component
Circuit
Breakers
ON/OFF
Switch
Power Cord
Socket
Model No./
Serial No. Label

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3.0 BASIC OPERATION
Control Operation
Plug the Power Cord into a properly grounded receptacle. Refer to the label at the Pedestal End
of the base for input voltage requirements. (See Figure 2.) Turn on the Power Switch and
observe the green light in the switch indicating that power is applied to the table. This rocker
switch is a combination on/off power switch, circuit breaker and pilot light.
Floor Lock
The Floor Lock Button is located on the sheet metal housing of the pedestal. To lock the table to
the floor, press and hold the Button labeled “LOCK” until the Floor Lock is completely
deployed. The green indicator light marked “LOCKED WHEN LIT” will be illuminated when it
is locked. To release the Floor Lock, press and hold the Button labeled “UNLOCK” until the
Floor Lock is completely retracted. The amber indicator light marked “STOWED WHEN LIT”
will be illuminated when it is unlocked. The control buttons on the Hand Pendant as described
below can also operate the Floor Lock.
NOTE:The table will not function until the Floor Lock is completely deployed.
Hand Pendant: Height, Lateral Tilt and Trendelenburg Adjustment and Floor Lock
The table is controlled by means of a low voltage Hand Pendant control with functions clearly
labeled. (See Figure 3.1) The Hand Pendant control should be plugged into the receptacle
labeled “HAND PENDANT” on the pedestal end of the table. To operate the floor lock or adjust
the height, lateral tilt or Trendelenburg of the table, press and hold the appropriate button on the
Hand Pendant until the desired position is achieved.
Figure 3.1-Hand Pendant Control
Rev Trendelenburg Trendelenburg
Height Up
RETURN TO LEVEL
TOP HOME
Left Lateral Roll Right Lateral Roll
Height Down
FLOOR LOCK
FLOOR UNLOCK

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The Hand Pendant control is equipped with a Top Home Button and a Return to Level Button.
The Top Home button is used to return the tabletop to its X-Y Home position (See Table Top
Home Section below). The Top Home and the Return to Level buttons must be held continuously
until the function is complete.
The Return to Level Button is used to level first lateral tilt, second Trendelenburg and third,
bring the table to its lowest position. A delay of 3 seconds is programmed after the
Trendelenburg function before the table returns to its lowest position.
The controller considers the table to be level if it is within +/-2 degrees. If the Return To Level
Button is pressed while the table is within this range, it will not move. If it is required to adjust
the table to a position closer to zero degrees, simply press the appropriate function button on the
Hand Pendant until the desired position is achieved.
Table Top Home
The X-Y Home position of the tabletop can be achieved by pressing the Table Top Home Button
located on the sheet metal housing of the pedestal or the Top Home Button on the Hand Pendant.
This position is defined as the tabletop being centered in its side-to-side travel and all the way to
the pedestal and in its longitudinal travel.
Joystick: Table Top Translation
The Lateral and Longitudinal Translation movement of the table is controlled by a Joystick
Control suspended from the Side Rail on either side of the Table Top at the pedestal end. The
6800 has 2 speeds of operation for longitudinal travel. Lateral travel is always performed at the
normal speed setting. An illuminated green light on the top of the Joystick Control indicates
normal speed and an illuminated green light indicates high speed. A Speed Button on the side of
the Joystick Control can be pressed once to switch between speeds. It should be noted that the
Joystick provides proportional control meaning that the Table travel speed will increase from
stop to full speed within the range depending on how far the Joystick is pushed.
Figure 3.2-Joystick Control
Activation
Button
Joystick
Speed
Selection
Button
Connector
Locking
Lever
Normal/High
Speed Indicator
Lights

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To use the Joystick Control slide it onto the Side Rail and plug it into the receptacle labeled
“JOYSTICK” on the pedestal end of the Table. The Locking Lever of the Joystick must be
rotated toward the pedestal end of the Table to lock it to the Side Rail. Correct orientation of this
lever insures that the direction of travel of the Table will be consistent with the direction of the
Joystick.
NOTE: Failure to engage the Joystick Locking Lever in the proper direction will result in travel
in the direction opposite of the Joystick Handle motion.
The Joystick Control includes an Activation Button that must be depressed while using the
Joystick. This feature prevents inadvertent motion of the Table if the Joystick is inadvertently
pushed.
To translate the Table, press and hold down on the Joystick Action Button and then push the
Joystick Control in the intended direction of travel. Release the Joystick Control when the
desired position is achieved. The table will move at a speed that is proportional to the position of
the Joystick Handle from the starting center position. Pushing the handle further from center
moves the table faster in that direction. Releasing the Joystick stops the table in any position.
NOTE: Although the Table is designed to travel laterally and longitudinally at any tilt or
Trendelenburg angle, it is recommended not to translate the table under full load (i.e. 450 lb.
patient) when it is at extreme tilt or Trendelenburg angles.
Figure 3.3-Patient Supine with head over pedestal

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4.0 INSPECTION
Acceptance & Transfer
Upon receipt of your Model 6800 Imaging Table, remove any protective wrapping or packaging.
Visually inspect all surfaces for freight damage. Check each caster for proper rolling operation.
NOTE: Any freight damage must be reported to the freight carrier immediately upon delivery.
It is the responsibility of the recipient to make freight damage claims.
•Verify receipt of the Completeness and Test Report provided with each Table.
•Read the Model/Serial Number Identification Label found at the Pedestal End of the base
(See Figure 2.) to confirm the serial number and the input power requirements.
•Place the Table in an area with at least 4 feet of clearance on all sides.
•Perform PRE-OP function check; see section 8.0 & 9.0.
Preoperative
Perform PRE-OP function check; see section 8.0 & 9.0.
Postoperative
Perform PRE-OP function check; see section 8.0 & 9.0.
Annually
•Inspect and test the table as described PRE-OP function; check section 8.0 & 9.0.
Thoroughly clean the table as described in the CLEANING section of this manual. Pay
special attention to the cleanliness of the controls as excessive soil could affect function.
•Inspect the power cord for cuts in the insulation or damage to the connector.
•Check to see that all fasteners are tight.
•Check the operation and security of the Floor Lock with and without a patient load in
place.

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5.0 THE ELECTRICAL SYSTEM
Description
The electrical system provides control of all the table functions and is comprised of a Power
Cord, an On/Off Circuit Breaker Switch, wire harnesses, a power supply, a controller circuit, a
Hand Pendant Control, a Joystick Control, Floor Lock jackscrews, various electromechanical
actuators and two stepper motors. The electric motor driven lead screw-type actuators
manipulating the height, the Hand Pendant Control controls lateral tilt and Trendelenburg
Functions. The Floor Lock Buttons raise and lower the table onto the floor locks. The translation
motion of the tabletop is controlled by the Joystick Control and driven by the stepper motors.
Drawing number 6800-1001 is the Electrical Wiring Diagram for the Model 6800 Imaging
Table. The input power requirement for this table is 120 VAC 60Hz, 6.5 Amp or 220 VAC 50Hz
as indicated on the Serial Number Label.
On/Off Circuit Breaker Switch
An illuminated On/Off Circuit Breaker Main Switch is located on the Pedestal End of the base of
the table (See Figure 2.2). When illuminated, it indicates that the table is plugged into a live
electrical outlet and the power is on. This switch also serves as a circuit breaker. In the event of
an overload condition this Switch will trip off. To reset, push to the OFF position and then the
ON position.
NOTE: Determine the source of the overload prior to resetting this switch.
Component Circuit Breakers
The electrical system includes three individual component Circuit Breakers that provide
protection for the major components of the system. These Circuit Breakers are located in the
base at the Pedestal End of the table (See Figure 2.2) If a short circuit occurs, the affected
Circuit Breaker will trip as evidenced by a button protruding from the Circuit Breaker Access
hole. To reset, press the button in and release.
NOTE: Determine the source of the overload prior to resetting this button.
Power Cord
The table is equipped with a standard EIC power cord with the appropriate 120 VAC hospital
grade connector. (220volt versions do not include the power connector) The Power Cord is
connected to the table at the EIC power entry socket located on the base of the Pedestal End near
the On/Off Switch.
Floor Lock System
The Model 6800 Imaging Table Floor Lock secures the table by powering 4 jackscrews to lower
four legs onto the floor and unloading the swivel casters. Depressing the Floor Lock "LOCK"
Button located on the lateral tilt enclosure at the Pedestal End or on the Hand Pendant operates it.
The “LOCK” Button is pressed and held until the Floor Lock is completely deployed. This
button applies electrical current to each of the four-jackscrew motors. Each leg is monitored by
the controller for contact with the floor. In the case of an uneven floor, it is possible that one or
more legs will continue to extend until firm contact is made with the floor. Complete locking is
evidenced by the illumination of the green “LOCKED WHEN LIT” light located below the
button. The table controller requires that the Floor Lock be completely engaged before any other

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function can be operated. If the Hand Pendant Control or the Joystick Control will not operate
the table, verify that the Floor Lock is completely deployed.
To unlock the Floor Lock, press and hold the Floor Lock “UNLOCK” Button until the amber
“STOWED WHEN LIT” light is illuminated indicating that the legs are completely retracted.

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6.0 CLEANING
Maintenance
Routine table care will assure many years of trouble-free service. For your convenience we
recommend the following:
Cleaning and Disinfecting
NOTE: Never pour any liquid directly onto the table. Never subject the 6800 Imaging Table to
an equipment washing machine.
USE OF IODOPHORS WILL CAUSE STAINING.
Table Exterior:
1. Exterior surface should be regularly wiped clean with a mild detergent solution and wiped
dry with a soft lint-free cloth.
NOTE: Do not wipe the support rails for the translating tabletop. These should remain with
a light coat of oil at all times.
2. Care should be taken to avoid exposing the table to excessive moisture. Flooding, fogging or
steam cleaning is not recommended.
3. Blood or other fluids, etc., if allowed to remain on the table for a long period of time, will
require special cleaning to remove. A 5% acetic acid solution or white vinegar and water
solution is especially good for this purpose.
4. Cleaning with a good commercial cleaning compound, such as Stainless Steel Magic or
Acme White Finish, and then buffing the surface by hand can correct staining and
discoloration of plated or stainless steel surfaces.
5. To disinfect exterior surface use a quaternary ammonium or similar type disinfectant
compound according to manufacturer's directions for use. Wipe dry with a soft lint-free
cloth.
NOTE: Failure to thoroughly dry surface after cleaning and disinfecting may result in rust.
Casters:
Casters should be cleaned and disinfected in the same manner as table exterior. Access to the
casters is achieved by removing the sheet metal enclosures at each end of the table base.
NOTE: Before removing any sheet metal covers the table must be turned off and
unplugged. Dangerous high voltage may be present in the circuitry under the covers. Only
trained technicians should perform this task.
Table Pad:
Remove pad from the tabletop and clean with mild detergent solution. Do not submerge in
water. Rinse thoroughly with clean damp cloth then dry using lint-free cloth.
Table Tops:
Disinfect surfaces of Table Tops according to standard hospital procedure.

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Lubrication
Table Exterior:
No lubrication is necessary.
Table Interior:
The translation and height adjustment sliding mechanisms of the 6800 Imaging Table require
periodic lubrication. There are ten sliders in all and each should be lubricated with Thomson
Linear Lube grease (or equivalent) once a year. Four sliders are on the lateral translation rails,
four are on the longitudinal translation rails and two are on the main table column. Apply the
grease through the zerk fittings located on each slide bearing housing. Do not over lubricate.
All other components are lubricated for life at the factory and no other lubrication on the table is
necessary.
Table Storage
When not in use the table should be stored in a clean dry environment with temperature between
32°F & 120°F.

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7.0 PRE-OP. FUNCTION CHECK
Perform all steps in this procedure. For a complete definition of reference terms used in this
procedure, please refer to the “glossary of terms”.
PRE-OP. FUNCTION CHECK:
1) Plug in the Hand Control Assembly (Assy.) cable into the table control-panel port at the
"rear" of the table.
2) Plug in and screw tight connector from the joystick assy. into control panel labeled
“Joystick”.
3) Attach and correctly orient the rail lock on the joystick assy. The table is programmed to
know what rail the joystick is on by the position of joystick lock-lever. This lever needs to
always lock in place toward the rear of the table.
4) Plug in the 120VAC power cord into a “hospital grade” outlet and flip on the main “On/Off”
power switch. Note that the switch illuminates indicated that 120VAC power is in the table.
5) Lockout mode: Table is only operational if the “Locked when lit” green indicator located on
the control panel is lit. Verify that the hand control functions do not operate except for
activating floor locks.
6) Floor locking check using the control panel:
a) Press and hold “Down to lock” button until green “Locked when lit” light is on. Table
cannot move on its wheels.
b) Press and hold “Up to Unlock” button until amber light is on. Table can move on its
wheels.
7) Hidden “Floor lock override" button check:
a) Press and hold "Floor Lock Override" button located under control panel. "Up, Down,
Tilt, and Trendelenburg" functions work without having table locked to floor.
8) Joystick check:
a) Move the handle without pressing “ACTIVATION” button. No functions initiate.
b) Verify proportional, variable speed operation. Press and hold “ACTIVATION” button
and move joystick. The tabletop moves in the direction of handle. Small handle
movements away from center, result in slow speeds while larger movements result in
faster tabletop speeds.
c) Press the "SPEED SELECT" button, illuminating the “high-speed” light and deactivating
the “Normal” light. Tabletop can move at twice the speed in the long direction.
d) Relocate Joystick Assy. to other side of table. See step 3 for more information. Re-check
section 8 procedures validating internal joystick locking lever sensor detected positional
change.
9) Hand Control check: Cycle all button functions below to their limits,
a) Press and hold "FLOOR LOCK" button. Observe all four locking feet move down and
contact the floor; control panel "Locked When Lit" green light is lit.
b) Press and hold "FLOOR UNLOCK" button. All four locking feet move up and "Stowed
When Lit" indicator is on.
c) Press and hold "HEIGHT UP" button. Tabletop moves up regardless of position of
tabletop.
d) Press and hold “HEIGHT DOWN" button. Tabletop moves down regardless of top
position.
e) Press and hold "REV. TREN" button. Front of tabletop moves up.
f) Press and hold "TREN" button. Front of tabletop moves down.
g) Press and hold "LEFT LATERAL ROLL" button. Tabletop tilts to the left.
h) Press and hold "RIGHT LATERAL ROLL" button. Tabletop tilts to the right.

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i) Disorient tabletop by raising height two inches, tilting tabletop and performing
Trendelenburg minimum five degrees. Press and hold "RETURN TO LEVEL" button.
Tabletop first levels tilt and Trendelenburg and then after a three-second delay, the
tabletop moves down.
j) Use the Joystick to move the tabletop. Press and hold "TOP HOME" button on Hand
Control. Tabletop moves to center and furthest rearward position. Perform this same step
but use the control panel "TOP HOME" button.
10) Front Panel ports (if equipped) repeat checks:
a) If you table is equipped, validate all operations presented on this page by connecting
Hand Control and Joystick to these front ports.

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8.0 GLOSSARY OF TERMS
Basic assumptions of Patient Orientation on the tabletop:
Our glossary of terms and technical procedures assume the patient is oriented with their head at
the “front of table” and their feet at the “rear of table”. The hand control functions are oriented
for this position only.
“Rear of table” indicates the end of the table where the power cord, "On-Off" switch, and
Control Panel are located; otherwise referred to as the “pedestal end”.
“Front of table” indicates the opposite end of the table also referred to the “cantilever end".
“Control Panel” is a panel of buttons and lights located on the rear of the table.
“Pedestal” refers to the main column structure that supports the tabletop.
“Left side of the table” refers to the table as you stand at the rear of table.
This also corresponds to the hand control button labeled “Left Lateral Roll”.
“Right side of the table refers to the table as you stand at the rear of table.
This also corresponds to the hand control button labeled “Right Lateral Roll”.
“Raise the table” refers to raising the height of the table.
This also corresponds to the hand control button labeled “Height Up”.
“Lower the table” refers to lowering the height of the table.
This also corresponds to the hand control button labeled “Height Down”.
“Raise the front of the table” refers to raising the height of the front or cantilever end of the
tabletop.
The corresponding hand control button is labeled “Rev. Tren” (Reverse Trendelenburg).
“Lower the rear of the table” refers to lowering the height of the rear or pedestal end of the
tabletop.
The corresponding handset button is labeled “Tren” (Trendelenburg).
“Level the Table” refers to leveling the tabletop regardless of height.
The corresponding hand control button is labeled “Return to Level”.
Holding the “Return to Level” button longer than approximately three seconds will also lower
the tabletop to its lowest position.
"Top Home" refers to centering the tabletop from left to right and is at rest furthest rearward.
The corresponding hand control button is labeled "Top Home".
“Unlock the floor locks” refers to rising the floor locks up 0.5 inches off the floor, allowing the
table to freely roll on its wheels. The floor locks, when down, will prevent the table from rolling.
The corresponding hand control button is labeled “Floor Unlock”.
The corresponding control panel button is labeled “Up to Unlock” with the corresponding amber
light activating, indicating, “Stowed when Lit”.
“Hospital Grade" outlet refers to a 120VAC outlet properly wired with earth ground: Neutral to
Common = 120VAC; Neutral to Ground = 120VAC; Common to Ground less than zero point
five (0.5) VAC.

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9.0 TROUBLESHOOTING
Electrical System
In the advent of a table malfunction, the first item to investigate is the input power. Be certain
that the Power Cord is plugged into a live electrical outlet and the Power Switch is ON. An
illuminated ON/OFF Switch indicates this.
If none of the functions are operating, the Floor Lock may not be completely deployed. Press the
FLOOR LOCK Button until the green “LOCKED WHEN LIT” light is illuminated.
Figure 7.1-Floor Lock Override Button
If the Floor Lock is deployed as evidenced by visual inspection, whether or not the green light is
on, and the Up/Down, Lateral Tilt or Trendelenburg functions do not operate, a Floor Lock
Override Button can be used to temporarily bypass the interlock on the Floor Lock system. This
button is located on the underside of the sheet metal housing at the Floor Lock Buttons (See
figure 5). Press and hold this button while simultaneously operating the desired function on the
Hand Pendant. Once released, no functions will be operable and this button must be pressed
again if subsequent table movement is required. This Override Button only powers the height,
Trendelenburg and tilt functions on the Hand Pendant and is intended for emergency situations
only. If it becomes necessary to use this feature, call OSI Technical Service immediately to
arrange for table repair.
Floor Lo
ck Override Button
(Under this surface)
Floor Lock Button
Floor Lock Indicator Lights

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10.0 REMOVAL and REPLACEMENT of COMPONENTS
Floor-lock Foot Replacement:
1. Flip on main “On/Off” power switch. The switch illuminates, indicating 120VAC power
is to the table.
2. Lock table to floor; Press and hold “Down to Lock” button until green "Locked When
Lit" light is on.
3. Flip off main “On/Off” power switch. Wait 30 seconds for discharge. Unplug power
cord from properly grounded wall outlet.
4. Remove base-access cover from end of table needing replacement.
Caution: Electrical shock hazard exists with access covers removed; use caution when
working in exposed areas.
a. Pry off two white-plastic access plugs for the floor lock jackscrew using a small
screwdriver.
b. Remove four screws attaching the cover using a 1/8 hex key.
c. Remove access cover.
5. Raise end of table using Floor-lock Crank Handle (p/n 6800-230 supplied with table). See
Photo 1.
6. Place 2-1/2 inch high support-block under jackscrew floor-lock motor-mount.
7. Carefully lower table onto support-block using Floor-lock Crank Handle.
Caution: Make certain table remains stable.
8. Raise jackscrew floor-lock off the floor to its maximum height, using Floor-lock Crank
Handle.
9. Remove Brake Pad (p/n MZC700004B0) by removing M6-1.00 x 20mm socket-head
screw (p/n MZA00206200) using 5mm hex key.
10. Install replacement Brake Pad.
If the standard attachment screw is bent; the first threads may be damaged requiring
replacement with an optional, longer screw M6-1.00 x 35mm (p/n AAM6035CAN).
a. Install replacement Brake Pad with attachment screw and washer using 5mm hex key.
11. Lower jackscrew floor-lock to the floor using floor-lock Crank Handle, lifting the table
until the support-block can be removed. Carefully remove support-block.
12. Adjust jackscrew floor-lock, using floor-lock Crank Handle, until table caster rests on
floor.
13. Replace base-access cover and attach with four screws using a 1/8 hex key.
14. Replace two white-plastic access plugs for the floor lock jackscrew.

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15. Plug table power cord into wall outlet and flip on main “On/Off” power switch.
16. Lock table to floor; press and hold “Down to Lock” button until green "Locked When
Lit" light is on.
17. Verify all jackscrew floor-locks contact the floor to lock the table from movement.
Adjust as required.
18. Unlock table from floor; Press and hold “Up to Unlock” button until amber "Stowed
When Lit" light is on.
19. Verify all jackscrew floor-locks clear the floor to unlock the table from movement.
Photo 1.Table with support-block in place at cantilevered end, jackscrew floor-lock raised.

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Tilt Sensor-Actuator:
Top (X-Y Stage) Cover removal:
1. Flip on main “On/Off” power switch. The switch illuminates, indicating 120VAC power is in
the table.
2. Press and hold “Down to Lock” button until green "Locked When Lit" light is on.
3. Move tabletop to highest position and maximum left-tilt using hand control.
4. Move tabletop to maximum left-translation position using joystick,.
5. Remove left Y-stop bracket (the L-shaped bracket with rubber bumper) by removing two
screws with 5/32 hex key.
6. Move tabletop to maximum right-tilt using hand control.
7. Move tabletop to maximum right-translation position using joystick.
8. Remove right Y-stop bracket (opposite left Y-stop bracket) by removing two screws with
5/32 hex key.
9. Remove X-Y stage cover by removing four screws, two on each side, using 1/8 hex key.
10. Slide X-Y Stage Cover off end of tabletop.
Left Tilt Cover removal:
1. Remove left tilt cover (the bell shaped housing).
Note: On some older tables, front X-Y stage cover must be removed to access one 4-40
mounting screw. Do not replace this screw during reassembly.
2. Remove seven flat-head screws, using 1/16 hex key.
3. Remove three screws located on top surface of left-tilt cover using 1/8 hex key. Move
tabletop with joystick to maximum left transitional position. Move tabletop, with casting
recess (viewed best from below) for best screw clearance and easiest access.
4. Flip off main “On/Off” power switch. Wait 30 seconds for discharge.
5. Remove left tilt cover.
Caution: To prevent damage to the sensors use care removing or replacing this cover.
Original Tilt Sensor removal:
1. Cut any cable ties holding the existing tilt sensor wire-harness to the tilt sensor bracket.
2. Gently pull the two sets of wires from the tilt sensor.
Note: The color-coding, white-marked connector into white-marked "Tilt Adjust" socket,
black-marked connector into black-marked "Trend Adjust" socket.
3. Remove original tilt sensor by removing two 1/4-20x1/2 in. cap-head screws using 3/16 hex
key.
Replacement Tilt Sensor installation:
1. Attach the replacement tilt sensor with two screws using 3/16 hex key.
2. Plug in wire harnesses connecting to tilt sensor. Connect the white shrink-tube-marked
connector into white-marked "Tilt Adjust" socket, black shrink-tube-marked connector into
black-marked "Trend Adjust" socket.
3. Attach harness to sensor bracket, as needed, with small nylon cable tie. Use care to prevent
possible damage by moving parts.
Tilt Sensor Calibration:.
Note: Use a bubble level, resting on the tabletop, as a level gauge. The level sensor adjustment
screws are accessed from the top of the unit. A two-degree maximum dead-band exists for each
axis. For "Return-to-Level" to function, the tabletop must be outside of this dead-band.
1. Flip on main “On/Off” power switch. The switch illuminates, indicating 120VAC power is in
the table.
2. Press and hold “Down to Lock” button until green "Locked When Lit" light is on.