Although current at the time of publication, SKYTRON’s policy of continuous development makes this
manual subject to change without notice.
Page 2
3501B EZ SLIDE EQUIPMENT LABELS
15
16
14
13
12
11
10
1
2
3
4
5
6
7
4
8
9
D6-032-47
1
USE HEAD SECTION AS FOOT EXTENSION
ONLY - WHEN REVERSING PATIENT ON TABLE
REFER TO OPERATOR MANUAL.
WARNING
D6-017-05
4
5
D6-065-26
7
D6-011-32
DANGER - E
XPLOS
ION
H
AZARD.
DO
11
T
HE
PRESENCE OF
DANGER - RISQUE
EMPLOYER EN
INFLAMMABLES
FLA
D'E
PRE
MMAB
LE
XPL
OSION. NE
SENCE
D'A
NOT USE IN
ANAE
STHETICS
NESTHESIQUES
PAS
D6-032-46
2
DO NOT SIT ON END OF LEG SECTION(S) AS LOADS
IN EXCESS OF 140 LBS, MAY CAUSE INSTABILITY
THAT COULD CAUSE THE TABLE TO BE TIPPED OVER.
WARNING
D3-035-60 right D3-035-61 left
D6-067-33
8
D6-031-43
12
POSSIBL
IF USED IN THE PRESENCE OF
FLAMMABLE ANESTHETICS.
E E
XPLOSION
DANGER
9
HAZARD
3
L1-010-00
6
13
D6-035-38
Table Capacity:
Lift
7
00 lbs.
Articulate 6
See Operators
Manual for Limitations.
10
D6-065-22
00 lbs.
D6-011-34
THIS PRODUCT COMPLIES WITH RADIATION PERFORMANCE STANDARD 21 CFR
AT THE TIME OF MANUFACTURE
Manufactured:
Model No.
14
D6-034-21
D6-065-21
Grounding reliability can only be achieved when
15
the equipment is connected to an equivalent
receptacle marked "Hospital Only" or "Hospital Grade"
16
D6-067-27
TWIST TO LOCK OR RELEASE PLUG
3501B EZ Slide General Purpose Surgical Table Specifications
14-1/2"
Page 3
60˚
90˚
12-1/2"
18-1/4"25"23"
14-1/2"
TOP VIEW
83"
5-1/2"
3"
6"
19-3/4"
21-3/4"
45" MAX
26" MIN
8-1/2"
40-1/2"
SIDE VIEW
ENTELA CERTIFIED
TO UL2601-1
CAN/CSA601.1, IEC 60601-2-46
Electrical Specifications
Power requirements
Current Leakage
Power Cord
120 VAC, 60Hz, 450 Watts
Less than 100 micro amps
15 feet w/hospital grade connector (removable)
19"
END VIEW
Page 4
SPECIAL USER ATTENTION
Prior to use, all personnel that may operate this
table must be instructed in the correct operational procedures. This table is designed for
use by trained and qualified personnel for human medical purposes only.
Initial use should not begin until after the users
have been instructed by the manufacturer's
representative.
A routine instructional program must be implemented by the facility for proper usage instructions for all personnel that may operate this
table.
The maximum lifting capacity of the 3501B
EZ Slide table is 700 pounds and the maximum
articulation weight capacity is 600 pounds.
When lifting or articulating large patients, pay
close attention to the patient position as well as
the positioning guidelines and limitations listed
in the operation instructions.
In general, common sense will dictate when there
is a potential hazard.
The following precautions should be reviewed
by all personnel prior to operating the table.
WARNING
Indicates a possibility of personal injury.
CAUTION
Indicates a possibility of damage to
equipment.
NOTE
Indicates important facts or helpful hints.
The extreme positioning capabilities of the 3501B
E-Z Slide Table requires special attention for possible interference points when using multiple function positioning. As with the operation of any
surgical table, a certain amount of care should be
exercised to position the patient safely. Although
the thick pads and sheets substantially protect the
patient, pinch points, located at the joints of the top
section should always be considered. BE SURE
THAT THE ARMS, HANDS AND FINGERS OF
THE PATIENT AND THOSE OF THE OPERATING ROOM PERSONNEL ARE CLEAR OF ALL
MOVING PARTS BEFORE MOVING THE TABLE.
Proper restraints should always be used for patient
safety.
Certain accessories such as the Uro-Drain Tray,
Armboards and X-Ray top can be damaged when
changing the position of the table top sections.
Always look first to see if a desired movement is
going to interfere with any accessories in use.
The operator has the ultimate responsibility of
preventing damage to the table and surrounding
equipment or possible injury to the patient or staff.
Do not use worn or damaged accessories, they
represent an injury hazard.
Remove possible obstacles before lowering or
tilting the operating table
Do not place objects on the base of the table, a
danger of damage exists during positioning.
Use caution when articulating the table top, pinch
hazards exist.
The operator must ensure proper positioning is
maintained to prevent compromising respiration,
nerve pathways or circulation.
SPECIAL USER ATTENTION
Page 5
NOTE
Activating any function button will activate the brake system. Using the TABLE
UP function to set the brakes provides
a visual assurance that the brakes are
locked without altering the table position, except when emergency brake is
released.
WARNING
Prior to operating the table, observe
all table caution labels and review the
SPECIAL USER ATTENTION section
in the front of this manual.
WARNING
NOTE
Battery Operation must be turned OFF
at the pendant control. It cannot be
turned OFF using the main power
switch.
NOTE
Turning the Main Power Switch ON will
change the table operation to 120 VAC
power.
NOTE
When the red light starts to blink (indicating low power in battery) the table
will operate for approximately 5 continuous minutes, typically long enough
to use the table for the rest of the day.
Possible explosion hazard exists if table
is used in the presence of FLAMMABLE
ANESTHETICS.
NOTE
An equalization terminal is located under the main power panel. This is provided as an alternate pathway to reduce the risk of static shock hazards.
Always follow recommended grounding procedures to ensure patient and
staff safety.
NOTE
The table will operate correctly on battery power with the power cord connected to a wall outlet or disconnected.
NOTE
The charging system operates ONLY
when the table is in AC120V operation
mode.
NOTE
The table can be operated on 120VAC
power while the battery is being recharged.
NOTE
If the table is stored for a period greater
than 6 months, the batteries should be
removed and stored in a dry, clean condition at a storage temperature of 68° F
(20° C). Batteries should be recharged
every 6 months of product storage.
Page 6
SPECIAL USER ATTENTION
WARNING
•DO NOT unlock brakes when a patient
is on the table. An uneven patient
weight load may cause instability.
•If circumstances demand table brakes
to be unlocked, the patient must be
centered and evenly distributed on the
table top (i.e. supine or prone position)
with the table lowered to its lowest
height position. The maximum patient
weight should not exceed 500 pounds.
Table top slide must be centered (indicated by a red LED light on the pendant
control) prior to unlocking brakes.
Patient's head must be on the head
section. Head section must be attached
in its normal orientation to the table's
back section.
•Prior to unlocking brakes, check for
obstructions on the floor that might
prevent the table from moving smoothly
to new location. Relock the brakes immediately once the final position is
reached and before commencing surgery. Table brakes should remain locked
at all times if patient weight exceeds
500 pounds.
WARNING
To maximize patient safety, utilize
proper restraint methods during extreme
lateral tilt positioning.
NOTE
If the table top is slid toward the foot
end, the back section will not go below
horizontal. An audible alarm will sound.
NOTE
To prevent damage to the kidney lift, a
safety interlock prevents the back section from going more than 45° above
horizontal if the kidney lift is not all the
way down. An audible alarm will sound.
NOTE
If the leg section is positioned more
than 45° below horizontal, the top will
not slide toward the head end. An
audible alarm will sound.
NOTE
With an evenly distributed patient weight
load, all table positioning functions will
operate smoothly and quietly with a
patient weight of up to 600 pounds
(700 pounds lift).
WARNING
To maximize patient safety, utilize
proper restraint methods during extreme
Trendelenburg positioning.
NOTE
If the back section is positioned below
horizontal, the top will not slide toward
the foot end. An audible alarm will
sound.
CAUTION
The Leg section may hit the table base
or the floor if both the leg and elevation
systems are placed in their full down
position.
SPECIAL USER ATTENTION
Page 7
NOTE
If the top is slid toward the head end the
leg section will only go down 45°. An
audible alarm will sound.
NOTE
When FLEX button is activated and if
the top is slid toward the foot end, the
back section will not go below horizontal. An audible alarm will sound.
NOTE
Return to Level will lower the kidney lift.
NOTE
To prevent damage to the kidney lift, a
safety interlock prevents the kidney lift
from going up if the back section is 45°
above horizontal. An audible alarm will
sound .
NOTE
Elevation and brake system functions
are not affected by the return to level
function.
CAUTION
The safety interlock system is not operational when the emergency backup control switches are used.
CAUTION
The EMERGENCY BRAKE LOCK
switch does not activate the brake system timer. The switch must be held
until the brakes are completely locked,
approximately 10 seconds.
NOTE
The emergency back-up control
switches will function when the table is
operating on 120VAC power, battery
power, or turned off.
WARNING
•DO NOT unlock brakes when a patient
is on the table. An uneven patient
weight load may cause instability.
•If circumstances demand table brakes
to be unlocked, the patient must be
centered and evenly distributed on the
table top (i.e. supine or prone position)
with the table lowered to its lowest
height position. The maximum patient
weight should not exceed 500 pounds.
Table top slide must be centered (indicated by a green LED light on the
pendant control) prior to unlocking
brakes. Patient's head must be on the
head section. Head section must be
attached in its normal orientation to the
table's back section.
•Prior to unlocking brakes, check for
obstructions on the floor that might
prevent the table from moving smoothly
to new location. Relock the brakes immediately once the final position is
reached and before commencing surgery. Table brakes should remain locked
at all times if patient weight exceeds
500 pounds.
Page 8
SPECIAL USER ATTENTION
NOTE
The Emergency Brake Release Valve
must be closed and tightened (clockwise) before activating any function.
•If the Emergency Brake Release Valve
has been operated, the UNLOCK button
on the pendant control will have to be
pressed before brakes will lock again.
WARNING
Consult manufacturer's instructions
when using high frequency surgical
equipment, cardiac defibrillator and cardiac defibrillator monitors.
WARNING
Certain accessories may limit weight
capacities. Check with your SKYTRON
representative.
CAUTION
Consult SKYTRON prior to using accessories produced by other manufacturers.
NOTE
Always follow current AORN Journal
Guidelines to ensure proper cleaning
and disinfection procedure.
WARNING
When an antistatic pathway is required,
the table has to be used on an antistatic
floor.
WARNING
The antistatic properties of the table
are dependent on the use of the original
pad set which was furnished with the
table or an alternate approved replacement.
WARNING
Always follow OSHA blood-borne pathogens standards for protective clothing,
including gloves, masks and eye protection when cleaning the surgical table.
CAUTION
Thoroughly read and follow the
manufacturer's directions for all cleaning fluids. DO NOT use cleaners containing phenolics.
CAUTION
When using spray cleaners DO NOT
spray fluids directly into electrical receptacles or micro switches.
CAUTION
Before replacing pads on the table, make
sure the pads and all mating surfaces
are completely dry. Moisture trapped
between the pads and mating surfaces
may cause distortion of table tops.
Page 9
WARNING
SKYTRON assumes no liability for table
performance, table damage or injury to
patient or staff when accessories not
sold or serviced by SKYTRON are
used on SKYTRON surgical tables.
Page 10
SECTION I INTRODUCTION
SIDE
RAIL
HEAD SECTION
LOCKING KNOB
HEAD
SECTION
SERVICE
ACCESS COVER
POWER
CORD
REMOVABLE
BACK SECTION
PENDANT
CONTROL
SEAT
SECTION
REMOVABLE
LEG SECTION
LEG SECTION
RELEASE LEVER
FLOOR/LOCK
BRAKE (4)
MAIN POWER
SWITCH
Figure 1-1. 3501B EZ Slide
1-1. General
SKYTRON’s 3501B EZ Slide Surgical Table is an
electro-hydraulically operated, general purpose surgical table. See figure 1-1.
The electro-hydraulic positioning functions operated by the hand-held, push button, pendant control unit are: Trendelenburg, lateral tilt, back section, elevation, leg section, top slide, flex/reflex,
kidney lift, return to level and the floor lock/brake
system.
Manual controls are provided for head section
positioning, emergency brake release and leg section removal.
EMERGENCY
BRAKE RELEASE
main power ON/OFF switch is located on the
electrical panel on the front edge of the table base.
See figure 1-2.
The battery charging indicator and an optional foot
control connector are also located on the electrical
panel.
1-2. Power Requirements
The 3501B EZ Slide Surgical Table requires a
120VAC, 60 Hz electrical power supply. The table
is equipped with a removable 15 foot long power
cord with a three prong, hospital grade plug. The
POWER
CORD
MAIN POWER
SWITCH
BATTERY
INDICATOR
Figure 1-2. Electrical Panel
OPTIONAL
FOOT CONTROL
CONNECTOR
1-3. Pendant Control Unit
AC120V POWER ON
INDICATOR LIGHT
(GREEN)
TABLE UP
(BRAKE LOCK)
LATERAL
TILT LEFT
BACK UP
LEG UP
SLIDE HEAD
FLEX
KIDNEY
LIFT UP
RETURN
TO LEVEL
BATTERY
LATERAL
TILT RIGHT
BACK DOWN
TABLE DOWN
LEG DOWN
SLIDE FOOT
REFLEX
KIDNEY
LIFT DOWN
BRAKE
UNLOCK
REVERSE
TRENDELENBURG
TRENDELENBURG
Page 11
The hand-held pendant control unit (figure 1-3)
has a non-slip rubber cover which assures a positive grip during use. A spring clip hanger is located
on the back of the control for storage. When the
Pendant Control is not in use, it should be stored on
a convenient side or end rail.
POWER
SIDE RAIL
CLIP
INDICATOR
FUNCTION
BUTTONS
The function push buttons are identified with abbreviated descriptions for all functions. See figure
1-4. When illuminated the Trendelenburg and
table up buttons are red, the remaining buttons are
all green.
Figure 1-3. Pendant Control Unit
Figure 1-4. Function Buttons
1-4. Floor Lock/Brake System
The floor lock/brake system consists of four selfleveling, hydraulic brake cylinders which raise and
support the table base off from the casters. Press
the TABLE UP button on the pendant control to set
the table’s brakes. An electronic timer will activate
the brake system until the brakes are completely
set, approximately 8-10 seconds.
NOTE
Activating any function button will activate the brake system. Using the TABLE
UP function to set the brakes provides
a visual assurance that the brakes are
locked without altering the table position, except when emergency brake is
released.
Page 12
SECTION II OPERATION
2-1. Electrical Power
The 3501B table will operate on either 120 VAC or
battery power.
WARNING
Prior to operating the table, observe
all table caution labels and review the
SPECIAL USER ATTENTION section
in the front of this manual.
WARNING
POWER
CORD
MAIN POWER
SWITCH
TWIST TO
LOCK
OPTIONAL
FOOT CONTROL
BATTERY
INDICATOR
GROUNDING TERMINAL
CONNECTOR
EQUALIZATION
Possible explosion hazard exists if table
is used in the presence of FLAMMABLE
ANESTHETICS.
NOTE
An equalization terminal is located under the main power panel. This is provided as an alternate pathway to reduce the risk of static shock hazards.
Always follow recommended grounding procedures to ensure patient and
staff safety.
2-2. AC 120V Operation
Use the following procedures to operate the table
on 120 VAC power.
Figure 2-1. Electrical Panel
The pendant control buttons and the green AC
120V, POWER indicator light located in the upper
right corner of the pendant control will illuminate.
See figure 2-2.
AC120V POWER ON
INDICATOR LIGHT
(GREEN)
a. Make sure the Power cord is securely at-
tached to the table. To install the power cord, align
the cord connector with the base connector, insert
the cord and twist clockwise to lock the cord into the
connector. See figure 2-1. Plug the cord into a
properly grounded, Hospital Grade, 120 VAC outlet. Make sure the power cord is routed to the outlet
to prevent it from being in the way of operating
personnel.
b. Activate the POWER SWITCH located on the
electrical panel. The switch will illuminate.
Figure 2-2. Pendant Control
c. The table is now ready for 120VAC operation.
Page 13
2-3. Battery Operation
a. Make sure the Main Power Switch indicator
light, on the electrical panel, is OFF. See figure 2-
2. If the indicator light is ON, turn AC120V operation OFF with the main power switch.
NOTE
The table will operate correctly on battery power with the power cord connected to a wall outlet or disconnected.
b. Press the BATT button on the hand-held
pendant control. The pendant control buttons, the
red BATTERY indicator light, located in the upper
right corner of the pendant control and the Battery
Indicator on the electrical panel will illuminate.
2-4. Automatic Shut-Off
a. To prevent unnecessary discharge of the
battery, a timer is built into the battery circuit. This
timer will automatically shut the battery power OFF
after 1½ hours of table inactivity.
b. To turn the table ON again, press the BATT
button on the pendant control, the pendant control
buttons and the red indicator light will illuminate.
NOTE
Turning the Main Power Switch ON will
change the table operation to 120 VAC
power.
c. The table is now ready for BATTERY opera-
tion.
d. To extend the battery charge life, turn the
BATTERY power OFF with the pendant control
when the table is not going to be used.
NOTE
Battery Operation must be turned OFF
at the pendant control. It cannot be
turned OFF using the main power
switch.
Page 14
2-5. Charging the Battery
Batteries should be charged:
• When the table is placed into initial
service
• As indicated by Battery Indicator
• Every week under normal service
conditions
a. Battery Indicator The Battery Indicator
consists of ten lighted bars, 3 red, 4 yellow and 3
green. See figure 2-3. Each bar represents a
percentage of the battery charge condition. When
all ten bars are illuminated, the batteries are fully
charged. The following list shows the battery
charge level as indicated by the lighted bars;
operating the table on battery power, the red indicator light on the pendant control will begin to blink.
NOTE
When the red light starts to blink (indicating low power in battery) the table
will operate for approximately 5 continuous minutes, typically long enough
to use the table for the rest of the day.
NOTE
The charging system operates ONLY
when the table is in AC120V operation
mode.
c. To recharge the battery, make sure the power
cord is connected, plugged into a 120VAC wall
outlet and the main POWER SWITCH - ON.
NOTE
The table can be operated on 120VAC
power while the battery is being recharged.
During charging, the bars will light in sequence to
the respective charge level, turn off and light in
sequence again.
BATTERY
INDICATOR
Figure 2-3. Battery Indicator
d. A full battery charge will last approximately 2
weeks under normal operating conditions. However, it is recommended to charge the batteries at
the end of each week to establish a normal routine
protocol. Lead acid batteries last longer if they are
not permitted to fully discharge. The table features
(2) 12 volt, sealed, lead acid batteries which require no manual maintenance. Lead acid gel batteries, under a proper charging program, feature
an approximate normal life of 4 years.
NOTE
If the table is stored for a period greater
than 6 months, the batteries should be
removed and stored in a dry, clean condition at a storage temperature of 68° F
(20° C). Batteries should be recharged
every 6 months of product storage.
2-6. Positioning Functions
Page 15
The hand-held pendant control (figure 2-4) activates the following table functions:
TRENDELENBURG
REVERSE
LATERAL
TILT LEFT
BACK UP
TABLE UP
(BRAKE LOCK)
SLIDE HEAD
LEG UP
FLEX
KIDNEY
LIFT UP
RETURN
TO LEVEL
BATTERY
AC120V POWER ON
INDICATOR LIGHT
(GREEN)
TRENDELENBURG
LATERAL
TILT RIGHT
BACK DOWN
TABLE DOWN
SLIDE FOOT
LEG DOWN
REFLEX
KIDNEY
LIFT DOWN
BRAKE
UNLOCK
Figure 2-4. Pendant Control Function Buttons
a. Floor Lock/Brake System. To activate the
brakes without affecting table positioning, press
the TABLE UP button. See figure 2-5. The
elevation cylinder will not function until the brakes
are completely extended.
Press the BRAKE UNLOCK button on the pendant
control to release the four self-leveling brake feet in
order to move the table. See figure 2-5. The brake
delay circuit automatically retracts the brake system. It takes approximately 7-8 seconds to totally
release the system.
WARNING
•DO NOT unlock brakes when a patient
is on the table. An uneven patient
weight load may cause instability.
•If circumstances demand table brakes
to be unlocked, the patient must be
centered and evenly distributed on the
table top (i.e. supine or prone position)
with the table lowered to its lowest
height position. The maximum patient
weight should not exceed 500 pounds.
Table top slide must be centered (indicated by a red LED light on the pendant
control) prior to unlocking brakes.
Patient's head must be on the head
section. Head section must be attached
in its normal orientation to the table's
back section.
•Prior to unlocking brakes, check for
obstructions on the floor that might
prevent the table from moving smoothly
to new location. Relock the brakes immediately once the final position is
reached and before commencing surgery. Brake should remain locked at all
times if patient weight exceeds 500
pounds.
TABLE UP
(BRAKE LOCK)
BRAKE
UNLOCK
Figure 2-5. Brake System Activation
NOTE
With an evenly distributed patient weight
load, all table positioning functions will
operate smoothly and quietly with a
patient weight of up to 600 pounds
(700 pounds lift).
Page 16
b. Trendelenburg. To place the table in a
Trendelenburg (head down) position, press the
TREND button (figure 2-6). Trendelenburg positioning of up to 25° may be obtained. To place the
table in a reverse Trendelenburg (head up) position, press the REV TREND button. Reverse
Trendelenburg positioning of up to 20° may be
obtained.
WARNING
To maximize patient safety, utilize
proper restraint methods during extreme
Trendelenburg positioning.
TRENDELENBURG
REVERSE
TRENDELENBURG
c. Lateral Tilt. To achieve lateral tilt right (as
viewed from the head end of the table), press the
TILT RIGHT button (figure 2-7). Tilt of up to 20° may
be obtained. To achieve lateral tilt left, press the TILT
LEFT button. Tilt of up to 20° may be obtained.
WARNING
To maximize patient safety, utilize
proper restraint methods during extreme
lateral tilt positioning.
LATERAL
TILT LEFT
LATERAL
TILT RIGHT
20˚
25˚
Figure 2-6. Trendelenburg Positioning
20˚20˚
Figure 2-7. Lateral Tilt Positioning
Page 17
45"
TABLE
UP
TABLE
DOWN
26"
d. Back Section. To raise the back section,
press the BACK UP button (figure 2-8). The back
section will raise up to 90° above horizontal. To
lower the back section, press the BACK DOWN
button. The back section will go down to 40° below
horizontal.
NOTE
If the table top is slid toward the foot
end, the back section will not go below
horizontal. An audible alarm will sound.
NOTE
To prevent damage to the kidney lift, a
safety interlock prevents the back section from going more than 45° above
horizontal if the kidney lift is not all the
way down. An audible alarm will sound.
e. Elevation. To raise table top, press the
TABLE UP button (figure 2-9). The table will lift a
patient weight of 700 pounds up to a maximum
height of 45". To lower the table top, press the
TABLE DOWN button. The table top will go down
to a minimum height of 26" (minus pad).
BACK UP
90˚
40˚
BACK DOWN
Figure 2-8. Back Section Positioning
Figure 2-9. Elevation Function
Page 18
f. Top Slide. To move the table top toward the
head end, press the SLIDE HEAD button. From
center position, the top will slide up to 7-1/2". See
figure 2-10.
NOTE
If the leg section is positioned more
than 45° below horizontal, the top will
not slide toward the head end. An
audible alarm will sound.
To move the table top toward the foot end, press
the SLIDE FOOT button. From center position, the
top will slide up to 13-1/2". Slide function will stop
and SLIDE/CTR Indicator will illuminate when table
is centered.
NOTE
g. Leg Section. To lower the leg section, press
the LEG DOWN button (figure 2-11). The leg
section will go down to 98° below horizontal. To
raise the leg section, press the LEG UP button.
The leg section will go up to level.
CAUTION
The Leg section may hit the table base
or the floor if both the leg and elevation
systems are placed in their full down
position.
NOTE
If the top is slid toward the head end, the
leg section will only go down 45°. An
audible alarm will sound.
If the back section is positioned below
horizontal, the top will not slide toward
the foot end. An audible alarm will
sound.
SLIDE HEAD
7-1/2"
SLIDE FOOT
13-1/2"
LEG UP
LEG DOWN
2˚
98˚
Figure 2-10. Top Slide
Figure 2-11. Leg Section Positioning
h. Flex Positioning. To place the table top in
a flex position from horizontal, press the FLEX
button (figure 2-12). To return the table top to a
horizontal position or into a reflex position, press
the REFLEX button.
Page 19
NOTE
When FLEX button is activated and if
the top is slid toward the foot end, the
back section will not go below horizontal. An audible alarm will sound.
FLEX
REFLEX
KIDNEY UP
5-1/2"
KIDNEY DOWN
Figure 2-13. Kidney Lift Positioning
j. Return To Level. To return the table top to a
level position, press the LEVEL button (figure 2-14).
NOTE
Figure 2-12. Flex/Reflex Positioning
i. Kidney Lift. To raise the built-in kidney lift,
press the KIDNEY UP button (figure 2-13). Up to
5-1/2" of lift can be achieved. Press the KIDNEY
DOWN button to lower the kidney lift.
NOTE
Return to Level will lower the kidney lift.
NOTE
To prevent damage to the kidney lift, a
safety interlock prevents the kidney lift
from going up if the back section is 45°
above horizontal. An audible alarm will
sound .
Elevation and brake system functions
are not affected by the return to level
function.
RETURN
TO LEVEL
Figure 2-14. Return To Level
Page 20
2-7. Emergency Back-up Controls
a. The emergency back-up control switches are
located under the access door on the service
access cover in the table base. See figure 2-15.
REV
TREND
TILT
BACKUPTABLEUPLEGUPBRAKE
RIGHT
LOCK
FUNCTION CONTROL
ACCESS DOOR
Figure 2-15. Emergency Controls Location
b. In the event of either a power failure or a
problem with the hand-held pendant control, the
table can be operated using the emergency backup switches. Simply push the desired emergency
switch in the appropriate direction to operate the
table functions. See figure 2-16.
CAUTION
TRENDTILT
LEFT
BACK
DOWN
TABLE
DOWN
LEG
DOWN
KIDNEY
DOWN
Figure 2-16. Emergency Back-Up Controls
CAUTION
The EMERGENCY BRAKE LOCK
switch does not activate the brake system timer. The switch must be held
until the brakes are completely locked,
approximately 10 seconds.
NOTE
The emergency back-up control
switches will function when the table is
operating on 120VAC power, battery
power, or turned off.
The safety interlock system is not operational when the emergency backup control switches are used.
c. Switches are provided for Trendelenburg,
lateral tilt, back section, elevation, leg section,
kidney down and brake lock. These switches are
spring-loaded so they return to the neutral or
center position when released.
2-8. Emergency Brake Release.
SERVICE ACCESS
COVER
POWER
CORD
EMERGENCY
BRAKE RELEASE
BRAKE (4)
In case of a power failure or an electrical problem
within the table, the emergency brake release
system can be used to move the table. The control
knob for this function is located on the side of the
table base and is identified by an EMERGENCY
BRAKE RELEASE label. Turn the knob counterclockwise to release the brakes. See figure 2-17.
WARNING
•DO NOT unlock brakes when a patient
is on the table. An uneven patient
weight load may cause instability.
Page 21
•If circumstances demand table brakes
to be unlocked, the patient must be
centered and evenly distributed on the
table top (i.e. supine or prone position)
with the table lowered to its lowest
height position. The maximum patient
weight should not exceed 500 pounds.
Table top slide must be centered (indicated by a green LED light on the
pendant control) prior to unlocking
brakes. Patient's head must be on the
head section. Head section must be
attached in its normal orientation to the
table's back section.
•Prior to unlocking brakes, check for
obstructions on the floor that might
prevent the table from moving smoothly
to new location. Relock the brakes immediately once the final position is
reached and before commencing surgery. Table brakes should remain locked
at all times if patient weight exceeds
500 pounds.
Figure 2-17. Emergency Brake Release
NOTE
The Emergency Brake Release Valve
must be closed and tightened (clockwise) before activating any function.
•If the Emergency Brake Release Valve
has been operated, the UNLOCK button
on the pendant control will have to be
pressed before brakes will lock again.
Page 22
2-9. Head Section
a. A quick release positioning bar located under
and to the front of the head section (figure 2-18) is
used to raise or lower the head section. Pull the
release bar toward the head end to allow the
section to pivot up or down. Positioning from 60°
above horizontal to 90° below horizontal in 15°
increments is available. Release the bar to lock the
head section in position.
HEAD SECTION
RELEASE BAR
Figure 2-18. Head Section Adjustment
2-10. Leg Section Removal.
NOTE
The leg section with the x-ray top + pad
attached weighs 31 lbs. It is recommended that the x-ray top and pad be
removed before detaching the leg section.
a. To remove the leg section, position the table
top height to elbow height, and simultaneously
depress both release levers and pull the leg section
out. See figure 2-20. Press the LEG-DOWN
button on the pendant control to position the leg
section attachment pins down and out of the way.
FOOT/LEG SECTION
b. By loosening two locking knobs beneath the
back section, an additional 2" of longitudinal adjustment can be achieved. If desired, the head
section may be removed by loosening the locking
knobs and pulling it straight out of the back section.
3501B EZ Slide Table has the capability of attaching the head section to the leg section
for use as a
foot extension ONLY. Do Not reverse the patient
on the table without first consulting with SKYTRON.
Two locking knobs are located on the inside of the
leg section for securing the head section. See
figure 2-19.
HEAD
SECTION
LOCKING
KNOB
FOOT/LEG
SECTION
LOCKING
KNOB
(RECESSED)
LOCKING
LEVERS
Figure 2-20. Leg Section Release Levers
b. To Install Leg Section, press and hold the
LEG-UP button until the leg section attachment
pins completely stop before reinstalling the leg
section to the table. Pull out on the leg section after
installation to make sure the release levers are
completely locked.
Figure 2-19. Repositioning Head Section
(for use as a Foot Extension)
WARNING
Consult manufacturer's instructions
when using high frequency surgical
equipment, cardiac defibrillator and cardiac defibrillator monitors.
WARNING
When an antistatic pathway is required,
the table has to be used on an antistatic
floor.
Page 23
2-11. Positioning
The use of certain optional accessories available
from SKYTRON further extend the positioning
capabilities of the 3501B E-Z Slide Table. Refer to
the following "Positioning Guidelines" or contact
your SKYTRON representative for further details.
WARNING
Certain accessories may limit weight
capacities. Check with your SKYTRON
representative.
CAUTION
WARNING
The antistatic properties of the table
are dependent on the use of the original
pad set which was furnished with the
table or an alternate approved replacement.
Consult SKYTRON prior to using accessories produced by other manufacturers.
Page 24
SECTION III MAINTENANCE
3-1. Preventive Maintenance
The following preventive maintenance checks and
services are recommended to ensure the serviceability and proper operation of your SKYTRON
Surgical Table, and should only be performed by
qualified SKYTRON trained personnel.
a. During normal cleaning, a general visual
examination should be made checking for leaks,
loose bolts or parts, and cracked, chipped, or
missing paint. Any necessary repairs should be
made.
b. Semi-annually the following checks and ser-
vices should be performed:
1. Check all hydraulic fittings, mini-valves and
slave cylinders for proper operation and
any signs of leaks.
2. Check the hydraulic speed controls and
adjust if necessary.
3. Pressure check (with a gauge) the pressure relief valve.
4. Check all mechanical adjustments and adjust as necessary.
3-2. Cleaning Recommendations
NOTE
Always follow current AORN Journal
Guidelines to ensure proper cleaning
and disinfection procedure.
The following procedures should be followed when
cleaning the surgical table between cases.
Place table top in level position prior to starting
cleaning procedure.
WARNING
Always follow OSHA blood-borne pathogens standards for protective clothing,
including gloves, masks and eye protection when cleaning the surgical table.
Remove major contaminants from the table with
disposable materials following appropriate biohazard waste disposal procedures.
5. Check hydraulic fluid level.
6. Lubricate the slider assembly.
7. Check function of foot leg release levers,
lubricate as necessary.
Remove all table pads and place them on a flat
surface for cleaning.
CAUTION
Thoroughly read and follow the
manufacturer's directions for all cleaning fluids. DO NOT use cleaners containing phenolics.
Apply cleaning fluid liberally to top and sides of
each pad and wipe with a clean lint-free cloth.
Using a clean, damp, lint-free cloth, wipe the pads
to remove the cleaning fluid.
Using a clean, dry, lint-free cloth, wipe the pads to
remove all moisture.
3-3. Service
Page 25
Repeat the steps to clean the bottom of the each
pad.
CAUTION
When using spray cleaners DO NOT
spray fluids directly into electrical receptacles or micro switches.
Repeat cleaning procedure for all table surfaces
including the top, sides, elevation column, base
and all accessories.
CAUTION
Before replacing pads on the table, make
sure the pads and all mating surfaces
are completely dry. Moisture trapped
between the pads and mating surfaces
may cause distortion of table tops.
Table maintenance can be performed by trained
maintenance personnel using SKYTRON authorized replacement parts and service techniques.
Service instructions and parts are available from
SKYTRON.
Preventive Maintenance contracts are available
through your local SKYTRON representative.
To obtain service instructions, replacement parts,
factory service or preventive maintenance contracts, contact the SKYTRON representative listed
below.
WARNING
SKYTRON assumes no liability for table
performance, table damage or injury to
patient or staff when accessories not
sold or serviced by SKYTRON are
used on SKYTRON surgical tables.
When the cleaning procedure is complete, replace
all pads and accessories as applicable.
Remove pendant control from table side rail and
apply cleaning solution to the pendant control and
cord.
Use a clean cloth dampened with water to remove
cleaning solution.
Use another clean damp cloth to remove any
remaining residue.
Or contact:
SKYTRON
5000 36th Street S.E.
Grand Rapids, MI 49512
1-800-SKYTRON (1-800-759-8766)
Fax. 1-616-957-5053
Install pendant control on side rail for storage when
cleaning procedure is complete.
5000 36th Street S.E., Grand Rapids, MI 49512
1-800-SKYTRON or 1-616-957-0500 • FAX 1-616-957-5053
SURGICAL TABLE
PARTS CATALOG
1/07
3501B EZ SLIDE
INTRODUCTION
This manual contains the exploded views and replacement parts lists for the service-
able components of the SKYTRON Model 3501B EZ SLIDE Surgical Table.
Each serviceable part in these exploded views is identified by a reference number.
Use this number to locate necessary part information in the parts list adjacent to the exploded view.
Always use the complete SKYTRON part number and description when ordering
replacement parts.
Always use the complete table serial number (S.N.) when ordering replacement
parts.
Special Tools and Maintenance Items listed on page 40.
Page 1
Abbreviations
As Required ........................................... A/R
1/8". 1/4" STRAIGHT BLADE SCREWDRIVERS
#2 PHILLIPS SCREWDRIVER
HYDRAULIC PRESSURE GAUGE SKYTRON P.N. 6-050-02
METRIC ALLEN WRENCHES 1.5mm-8mm
ADJUSTABLE CRESCENT WRENCH
DIGITAL VOLTMETER, TRUE RMS
METRIC OPEN END WRENCHES 7mm-18mm
LEVEL (CARPENTERS)
GREASE GUN
BEARING GREASE P.N. D6-010-89-1
BASIC RECOMMENDED MAINTENANCE PROCEDURES
The basic items notes below should be inspected at a minimal interval period of 6 months (dependant on
usage). For optimal usage, safety and longevity of the product, have it serviced only by an authorized
Skytron representative with authentic Skytron replacement parts.
• Check Power Cord (if applicable)
• Check Pendant Control (if applicable)
• Check Oil Level in Reservoir
• Check For Hydraulic Leaks
• Check Pressure Relief Valve Setting
• Check All Table Functions
• Check Side Rails and Gravity Stops
• Check Velcro
• Check Lateral Tilt Housing Bolts
• Lubricate Elevation Slider Assembly with Mobilux EP (Extreme Pressure) Grease P/N D6-010-89-1
• Tighten X-Ray Top Stand-Offs, Use Blue Loc-Tite
• Lubricate Casters
• Check brake pads for wear and inspect brake cylinders for proper operation.
• Inspect the Trendelenburg Cylinder & Ball Joint Retainer Nut
Only facility-authorized Skytron trained, maintenance personnel should troubleshoot the
Skytron 3501B EZ SLIDE Surgical Table. Trouble shooting by unauthorized personnel
could result n personal injury or equipment damage.
How to contact us:
SKYTRON
5000 36th St. SE, Grand Rapids, MI 49512
PH: 1-800-759-8766 (SKY-TRON)
FAX: 616-957-5053
Page 4
3501B EZ SLIDE EQUIPMENT LABELS
15
16
14
13
12
11
10
1
2
3
4
5
6
7
4
8
9
D6-032-47
1
USE HEAD SECTION AS FOOT EXTENSION
ONLY - WHEN REVERSING PATIENT ON TABLE
REFER TO OPERATOR MANUAL.
WARNING
D6-017-05
4
5
D6-065-26
7
D6-011-32
DANGER - E
XPLOS
ION
H
AZARD.
DO
11
T
HE
PRESENCE OF
DANGER - RISQUE
EMPLOYER EN
INFLAMMABLES
FLA
D'E
PRE
MMAB
LE
XPL
OSION. NE
SENCE
D'A
NOT USE IN
ANAE
STHETICS
NESTHESIQUES
PAS
D6-032-46
2
DO NOT SIT ON END OF LEG SECTION(S) AS LOADS
IN EXCESS OF 140 LBS, MAY CAUSE INSTABILITY
THAT COULD CAUSE THE TABLE TO BE TIPPED OVER.
WARNING
D3-035-60 right D3-035-61 left
D6-067-33
8
D6-031-43
12
POSSIBL
IF USED IN THE PRESENCE OF
FLAMMABLE ANESTHETICS.
E E
XPLOSION
DANGER
9
HAZARD
3
L1-010-00
6
13
D6-035-38
Table Capacity:
Lift
7
00 lbs.
Articulate 6
See Operators
Manual for Limitations.
10
D6-065-22
00 lbs.
D6-011-34
THIS PRODUCT COMPLIES WITH RADIATION PERFORMANCE STANDARD 21 CFR
AT THE TIME OF MANUFACTURE
Manufactured:
Model No.
14
D6-034-21
D6-065-21
Grounding reliability can only be achieved when
15
the equipment is connected to an equivalent
receptacle marked "Hospital Only" or "Hospital Grade"
16
D6-067-27
TWIST TO LOCK OR RELEASE PLUG
3501B EZ Slide General Purpose Surgical Table Specifications
14-1/2"
Page 5
60˚
90˚
12-1/2"
18-1/4"25"23"
14-1/2"
TOP VIEW
83"
5-1/2"
3"
6"
19-3/4"
21-3/4"
45" MAX
26" MIN
8-1/2"
40-1/2"
SIDE VIEW
ENTELA CERTIFIED
TO UL2601-1
CAN/CSA601.1, IEC 60601-2-46
Electrical Specifications
Power requirements
Current Leakage
Power Cord
120 VAC, 60Hz, 450 Watts
Less than 100 micro amps
15 feet w/hospital grade connector (removable)
19"
END VIEW
Page 6
SECTION I HYDRAULIC SYSTEM
1-1. General
The hydraulic system (with the exception of the
hydraulic cylinders and hoses) is contained within the
base of the table. The hydraulic valves and pump are
electrically controlled by the use of a hand-held push
button pendant control. The power requirements for
the table are 120 VAC, 5 amp, 60 Hz.
c. Pressure Relief Valve - Provides an alternate oil
path when the hydraulic cylinders reach the end of
their stroke.
d. Electro/Hydraulic Mini-Valve Assemblies -These
direct the fluid to the appropriate hydraulic cylinders.
The table contains the following components. Refer to the block diagram (figure 1-1) for relationship.
a. Oil Reservoir - Main oil supply. Approximately
two quarts.
b. Motor/Pump Assembly - A positive displacement gear type pump provides the necessary oil
pressure and volume.
1213
67
BACK SECTION
2
3
TRENDELENBURG
CYLINDER
4
SLIDE
5
TILT
CYLINDER
e. Hydraulic Lines, Fittings, Connections - They
provide a path for the hydraulic oil.
f. Hydraulic Cylinders - They convert the hydraulic
fluid pressure and volume into mechanical motion.
10
KIDNEY LIFT
11
89
LEG SECTION
ELEVATION
CYLINDER
(4) BRAKE ASSEMBLIES
1
4
PLUMBING
TERMINAL
MINI-
VALVES
1
ELEVSLIDE
2
1
2
3
579
3
4
5
6
10
8
111213
2
6
8
10
9
7
7
KIDNEY
LEGBACKFLEXTILTTREND
MOTOR/
PUMP
ASSEMBLY
Figure 1-1. Hydraulic Block Diagram
EMERGENCY
BRAKE RELEASE
14
BRAKE
12
13
11
82206-101
1-2. Component Operation
82206-103
PRESSURE RELIEF
ADJUSTMENT NUT
PRESSURE
GAUGE
SPRING
LOADED
PLUNGER
PRESSURE
RETURN
82206-104
PRESSURE RELIEF
ADJUSTMENT NUT
PRESSURE
GAUGE
SPRING
LOADED
PLUNGER
OIL LINE
FROM
PUMP
OIL RESERVOIR
Page 7
a. Motor/Pump Operation
The motor/pump assembly is a gear type pump
that provides the oil pressure and volume for the
entire hydraulic system. The pump has an inlet
side and an outlet side. The inlet side is connected
to the reservoir which provides the oil supply. The
reservoir has a very fine mesh screen strainer
which prevents foreign material from entering the
oil system.
The output line of the pump is connected to the
main oil galley which is internal and common to all
the hydraulic mini-valves and pressure relief valve.
Also, common to the hydraulic mini-valves and
pressure relief valve is an oil galley that internally
connects to the oil reservoir to provide a return path
for the hydraulic oil. See figure 1-2.
MAIN PRESSURE
OIL GALLERY (internal)
MINI-VALVES
PRESSURE
RELIEF VALVE
The main component of the valve is an adjustable
spring loaded plunger that when it is pushed off
from its seat by the oil pressure the oil then flows
back into the reservoir. See figure 1-4. Turning the
adjustment nut clockwise increases the amount of
oil pressure required to open the valve, and turning
it counterclockwise decreases the amount of oil
pressure. (See adjustment section for specification.)
OIL RESERVOIR
MAIN RETURN
OIL GALLERY
(internal)
MOTOR/PUMP
ASSEMBLY
PUMP
INLET
PUMP
OUTLET
82206-102
Figure 1-2.
b. Pressure Relief Valve
This device provides an alternate oil path back to
the reservoir when the hydraulic cylinders reach
the end of their stroke and the pump continues to
run. If this path were not provided, the pump motor
would stall because the oil cannot be compressed.
The pressure relief valve is directly connected to
the mini-valve bodies and shares both the common
internal main pressure oil galley, and the return oil
galley that internally connects to the reservoir. See
figure 1-3.
Figure 1-3. Pressure Relief Valve Not
Functioning
Figure 1-4. Pressure Relief Valve Functioning
Page 8
c. Mini-Valves
The operation of the mini-valves is identical for all
table functions except the elevation and brake
circuits. These two hydraulic circuits use a 3-way
(single check valve) type mini-valve. All other functions use a 4-way (dual check valve) type minivalve.
Either type mini-valve is controlled by two pushing
type, electrically operated solenoids. The solenoids push the spool valve (located in the lower
portion of the valve) one way or the other. This
motion opens the main supply galley (which has
pump pressure) allowing the oil to flow through the
various parts of the mini-valve to the function. The
spool valve also opens an oil return circuit which
allows the oil to return to the oil reservoir.
The main components of the mini-valve and their
functions are listed below:
1. Spool Valve - Opens the main oil galley
(pump pressure) to either mini-valve outlet depending on which direction the spool valve is
pushed. Also it provides a return path for the oil
returning back into the reservoir.
2. Pilot Plunger - There are two plungers in a
four-way mini-valve (one in a 3-way mini-valve),
one under each check valve. The purpose of the
pilot plungers is to mechanically open the return
check valve allowing the oil to return back into the
reservoir.
3. Check Valve - Two are provided in each fourway mini-valve to seal the oil in the cylinders and oil
lines and prevent any movement of the table. One
check valve is provided in a 3-way mini-valve.
the return oil. If the pump puts out more volume to
a slave cylinder than is allowed by the speed
control, the pressure relief valve opens and provides an alternate path for the pump oil to return to
the reservoir.
The following material depicts the three operating
positions of the mini-valve. The movement of the
slave cylinder piston (extend or retract) is determined by which port of the Mini-Valve is activated.
Mini-Valve in Neutral Position
(No fluid flow) See figure 1-5.
• Spool Valve Centered - This closes off both oil
pressure and oil return galleys.
• Pilot Plungers Both Closed -The pilot plungers control the opening of the check valves. If they
are closed, the check valves must be closed.
• Check Valves - Both check valves are closed
trapping the oil in the cylinder and oil lines.
• Speed Control - When the mini-valve is in the
neutral position, the speed control does not affect
anything.
OIL LINE
SPEED
CONTROL
CHECK
VALVE
BALL
VALVE
OIL LINE
PILOT
PLUNGER
4. Speed Controls - There are two speed
controls in each 4-way mini-valve. They are needle
valve type controls which restrict the volume of oil
returning back into the reservoir, thereby controlling the speed of the table surface movement. A 3way mini-valve has only one speed adjustment.
The speed controls are always located in the return
oil circuit to allow the movement of the cylinder to be
controlled. Also, by using this control method, it
does not matter what size cylinder and piston is
used because the speed is controlled by restricting
OIL GALLERY
(PRESSURE)
OIL RETURN
(RETURN)
SPOOL
VALVE
SOLENOID
PISTON
Figure 1-5. Mini-Valve in Neutral Position
82206-105
Mini-Valve Right Port Activated
INLET
OUTLET
82206-107
(See figure 1-6)
Page 9
Mini-Valve Left Port Activated
(See figure 1-7.)
Right Mini-Valve Port is Supply Line
Left Mini-Valve Port is Return Line
INLETOUTLET
82206-106
Figure 1-6. Mini-Valve Right Port Activated
• Spool Valve - Pushed to the left by electric
solenoid. This opens the internal oil pressure
galley allowing the fluid to go through the check
valve and on to the cylinder. Also, the spool valve
opens the oil return line providing an oil path
through the internal oil galley back to the reservoir.
Left Mini-Valve Port is Supply Line
Right Mini-Valve Port is Return Line
Figure 1-7. Mini-Valve Left Port Activated
• Spool Valve -Pushed to the right by electric
solenoid. This opens the internal oil pressure
galley allowing the fluid to go through the check
valve and on to the cylinder. Also, the spool valve
opens the oil return line providing an oil path
through the internal oil galley back to the reservoir.
• Pilot Plunger Valve - Left pilot plunger valve
is pushed up by the incoming oil pressure mechanically opening the check valve located above it in the
return circuit. This action allows the oil from the
return side of the slave cylinder to go back into the
reservoir. The right pilot plunger valve is not
affected in this operation mode.
• Check Valves - Both check valves are opened
in this operation mode. The right check valve is
pushed open by the oil pressure created by the
pump. The oil then continues through the lines and
supplies the inlet pressure to move the slave
cylinder piston. The left check valve is held open
mechanically by the pilot plunger and allows the oil
from the return side of the slave cylinder to go
through the mini-valve back to the reservoir.
• Speed Control - The right speed control
(output side) does not have any effect in this
operation mode because the oil is routed around
the speed control through a bypass valve to the
output port. The left speed control controls the
speed of the table function by restricting the flow of
oil going back into the reservoir.
• Pilot Plunger Valve - Right pilot plunger valve
is pushed up by the incoming oil pressure mechanically opening the check valve located above it in the
return circuit. This action allows the oil from the
return side of the slave cylinder to go back into the
reservoir. The left pilot plunger valve is not
affected in this operation mode.
• Check Valves - Both check valves are opened
in this operation mode. The left check valve is
pushed open by the oil pressure created by the
pump. The oil then continues through the lines and
supplies the inlet pressure to move the slave
cylinder piston. The right check valve is held open
mechanically by the pilot plunger and allows the oil
from the return side of the slave cylinder to go
through the mini-valve back to the reservoir.
• Speed Control - The left speed control
(output side) does not have any effect in this
operation mode because the oil is routed around
the speed control through a bypass valve to the
output port. The right speed control controls the
speed of the table function by restricting the flow of
oil going back into the reservoir.
Page 10
d. Hydraulic Cylinders (Slave Cylinders)
There are several different types of hydraulic cylinders used in the table that activate the control
functions. With the exception of the elevation and
brake cylinders, all operate basically the same
way. The control functions are listed below.
1. Trendelenburg, Back Section and Leg Section Cylinders - The double action cylinders are
closed at one end and have a movable piston with
hydraulic fluid on both sides. Connected to this
piston is a ram or shaft that exits out of the other end
of the cylinder. Through the use of a ball and
socket, a gear, or clevis and pin arrangement, this
ram is connected to a movable table surface.
The movable surface can be moved one way or
the other by pumping hydraulic fluid into the cylinder on either side of the piston. Obviously, if oil is
pumped into one side of the cylinder, a return path
must be provided for the oil on the other side. See
figure 1-8.
BACK
SECTION
O-RING RAM PISTON
HYDRAULIC
LINE
HYDRAULIC
LINE
When hydraulic fluid is pumped into one side of the
cylinder, the pistons are pushed in one direction,
the gear arrangement rotates and causes the table
top to slide. Oil pressure can be applied to either
piston, making the table slide end for end. See
figure 1-9.
RACK GEAR
RAM
O-RINGSO-RINGSPISTONS
82206-109
Figure 1-9. Slide Cylinder Assy.
3. Lateral Tilt Assembly - The lateral tilt assembly consists of two cylinders, pistons and connecting rods. The connecting rods attach to the lateral
tilt lever which connects to the table center column
assembly. The cylinder housing attaches to the
table top and is attached to the center column
assembly by pivots. See figure 1-10.
The pistons and connecting rods are attached to a
non-movable surface. Therefore, when hydraulic
fluid is pumped into one side, the cylinder housing
itself moves around the lateral tilt lever causing the
table top to tilt to one side.
To tilt the table top in the opposite direction, fluid is
pumped into the opposite cylinder.
82206-108
Figure 1-8. Back Section Cylinder
2. Slide Cylinder Assembly - This cylinder
arrangement has two pistons, one on each end of
a ram which has rack gear teeth cut into its top
surface. These teeth mesh with a gear arrangement that drives a rack gear connected to the
bottom of the side frame.
CONNECTING RODS
PISTON
LATERAL
TILT LEVER
82206-110
Figure 1-10. Lateral Tilt Cylinder Assembly
4. Elevation Cylinder - This single action cylin-
O-RINGS
RAM
PINION
GEAR
O-RINGS
82206-112
der does not have hydraulic fluid on both sides of
the piston. It depends on the weight of the table top
assembly to lower it.
The cylinder is set in the center of the elevation
main column. The two stage cylinder is elevated by
the driven force of the oil pressure. When lowering,
the oil that is accumulated in the cylinder is returned
to the oil reservoir through the mini-valve due to the
table top weight.
A slider support assembly is used to support the
weight of the upper table section. A stainless steel
shroud covers the flexible hydraulic hoses and
slider. See figure 1-11.
Page 11
Figure 1-12. Kidney Lift Cylinder Assembly
ELEVATION
CYLINDER
SHROUD
ELEVATION
COLUMN
PRIMARY
PISTON
SECONDARY
PISTON
90606-113
Figure 1-11. Elevation Cylinder Assembly
5. Kidney Lift Cylinders - The two kidney lift
cylinders have a ram that has rack gear teeth cut
into the top surface. O-Rings on each end of the
ram allow the ram to also serve as the pistons.
The rack teeth cut into the top of the ram meshes
with a pinion gear. This gear meshes with other
gears to supply the up or down drive for the kidney
lift bars, depending on which direction the oil is
pumped into the cylinder. See figure 1-12.
6. Brake Cylinders - The brake cylinders are
single action type similar to the elevation cylinder.
The movable piston's ram is connected to a brake
pad. See figure 1-13. Oil pumped into the top of the
cylinder pushes the piston down raising the table
base off its casters. An internal return spring
pushes the piston up to return the oil through the
mini-valve to the reservoir.
OIL LINE
RETURN SPRING
PISTON
BRAKE PAD
82206-113
Figure 1-13. Single Action Brake Cylinder
Page 12
e. Elevation Cylinder Return Circuit
A three-way (single check valve type) mini-valve
controls both the elevation and return circuits. The
elevation circuit operation within the mini-valve is
identical to the operation of the four-way valves
previously described (inlet pressure opens the
check valve allowing the oil to enter the cylinder). In
the return position, inlet pressure pushes the pilot
plunger up and opens the return check valve. See
figure 1-14. The open check valve allows a path for
the oil in the elevation cylinder to return to the
reservoir. When the pilot plunger valve is opened,
the continuing pump pressure opens the pressure
relief valve which provides a return oil path to the
reservoir.
The mini-valve used in the elevation circuit contains only one check valve (all four-way mini-valves
use two check valves). The check valve is used to
trap the oil in the elevation cylinder thereby supporting the table top. When the top is being lowered
the check valve is mechanically held open by the
pilot plunger through pump pressure.
3. Manually controlled emergency brake re-
lease.
4. Plumbing terminal, flexible hoses, copper
lines and "O" rings.
5. Portions of the electrical system.
BRAKE
EMERGENCY
BRAKE
RELEASE
PLUMBING
BRAKE
TERMINAL
PRESSURE
RELIEF
VALVE
MOTOR/PUMP
ASSEMBLY
BRAKE
MINI
VALVE
BRAKE
BRAKE
INLET
TO RESERVOIR THROUGH
PRESSURE RELIEF VALVE
RETURN TO
RESERVOIR
82206-114
Figure 1-14. Elevation Return Circuit
f. Brake System
The brake system consists of the following components: (figure 1-15)
1. Single action slave cylinders (4 each).
82206-115
Figure 1-15. Brake System Block Diagram
Each corner of the cast-iron table base has a
hydraulic brake cylinder. These single action cylinders are hydraulically connected in parallel to the
mini-valve and all four are activated together. It is
normal for one corner of the table to raise before the
others due to the weight distribution of the table.
An electronic timer in the relay box is activated
when any function on the pendant control is
pushed momentarily. The pump/motor and brake
system mini-valve are activated and the brake
cylinders are completely set. The electronic timer
runs for approx. 8-10 seconds.
The brakes are released by pushing the BRAKE
UNLOCK button momentarily. An electronic timer
in the relay box activates the brake function hydraulic mini-valve and pump/motor.
2. 3-way (single check valve type) mini-valve.
h. Flex/Reflex System
FLEX/
REFLEX
2
7
37
PLUMBING
TERMINAL
2
TREND.
7
BACK
UP
MINI-
VALVES
6
BACK
DOWN
26
3
REV.
TREND.
82206-117
Page 13
When activated, the return hydraulic circuit operates similar to the elevation cylinder return circuit.
Return springs inside the single action brake cylinders retract the brake pads and provide the pressure to return the hydraulic oil back to the reservoir.
The electronic timer operates the return circuit for
approximately 8-10 seconds.
g. Emergency Brake Release
The emergency brake release is simply a manually
operated bypass valve connected in parallel to the
brake cylinders and the oil reservoir. See figure 1-
16. When the valve is opened (turned counterclockwise) a return circuit for the brake hydraulic
fluid is opened. The return springs force the pistons
up pushing the hydraulic oil back into the reservoir
and retracting the brake pads.
SERVICE ACCESS
COVER
The Flex/Reflex system incorporates an additional
mini-valve which connects the Trendelenburg and
back section hydraulic systems in a series. When
FLEX is activated by the pendant control, the Flex/
Reflex mini-valve opens the oil pressure path to the
Reverse Trendelenburg piston. The return oil path
from the Trendelenburg piston is routed through
the back section cylinder to the mini-valve return
port. See figure 1-17
POWER
CORD
EMERGENCY
BRAKE RELEASE
Figure 1-16.
NOTE
•The emergency brake release valve
must be tightened securely when not in
use.
•If the emergency brake release valve
has been operated, the UNLOCK button on the pendant control may have to
be pressed before brakes will lock again.
If the emergency brake release valve is open, the
brakes will release slowly- depending on how far
open the valve is, this could take anywhere from a
few minutes to several hours.
BRAKE (4)
82206-116
Figure 1-17. Flex/Reflex System
Page 14
82206-118
FILLER CAP
FITTING
GASKET
OIL TANK
RESERVOIR
1-3. Hydraulic Adjustments
a. Fluid Level.
The fluid level should be approximately 1/2" below
the filler hole or gasket surface. If additional fluid is
needed, remove the filler vent cap with a phillips
screwdriver and add fluid through this opening
using a funnel. See figure 1-18.
NOTE
Whenever a hydraulic line or component is replaced, bleed the air out of the
lines using the pump pressure by activating the function before making the
final connection. Then operate the function until it stalls in both directions.
NOTE
The elevation cylinder should be completely down, the brakes released and
all the other control functions in their
neutral position when checking oil level.
Figure 1-18.
c. Pressure Relief Valve
The pressure relief valve is adjusted by turning the
adjustment nut until the desired pressure is reached.
To adjust:
1. Remove the plumbing bolt securing the
brake system line to the pressure relief valve and
attach a hydraulic pressure gauge to the main oil
galley using a long 6mm plumbing bolt. See figure
1-19.
PRESSURE
GAUGE
PRESSURE
RELIEF
VALVE
PLUMBING
BOLT
The type of oil that should be used is Mobil DTE #25
or equivalent. This is a very high quality hydraulic
oil. The table requires approximately two quarts of
oil to operate properly. Excercise caution when
determining equivalance to avoid damage to the
hydraulic system.
b. Bleeding The Hydraulic System
To purge the air from the hydraulic system, operate
each function back and forth at least two or three
times.
82206-119
Figure 1-19.
2. Raise the table top until the piston reaches
the end of its stroke and stalls. Observe reading
on pressure gauge and turn the adjustment nut
(clockwise to increase oil pressure, counterclockwise to decrease) until desired reading is obtained.
Pressure should be 8MPA (80KG/CM2 -1138 PSI).
An erratic reading and/or inability to adjust to the
recommended setting may indicate the need for
replacement of the pressure relief valve.
Page 15
d. Speed Controls
The speed controls restrict the volume of oil returning back to the reservoir thereby controlling the
speed of each control function.
All four-way mini-valves, have two speed controls
located in the ends of each valve body. All threeway mini-valves have only one speed control.
One speed control adjusts one direction of a
particular function and the opposite speed control
adjusts the other direction. They are adjustable by
using a small straight blade screwdriver and
turning the adjustment screw clockwise to decrease the speed and counterclockwise to
increase the speed. See figure 1-20.
1. TABLE DOWN
2. REVERSE TREND.
3. TRENDELENBURG
4. TILT RIGHT
5. TILT LEFT
6. REFLEX
7. FLEX
8. BACK UP
2468101214
MINI-
VALVES
4
2
1
3
ELEVSLIDE
2
5
1
3579111315
9. BACK DOWN
10. FOOT DOWN
11. FOOT UP
12. KIDNEY UP
13. KIDNEY DOWN
14. SLIDE FOOT
15. SLIDE HEAD
16. BRAKES
6
8
7
7
LEGBACKFLEXTILTTREND
9
10
KIDNEY
16
BRAKE
12
11
13
82206-120
Any control function should move in either direction at the same rate. If the rate of a certain function
is too slow, open the speed control slightly and
recheck. Use the second hand on a watch and time
a particular function. Match that time in the opposite direction by opening or closing the speed
control. Approximate operating times are as follows:
Lateral Tilt7 seconds
Leg Up25 seconds
Leg Down15 seconds
Kidney Lift7 seconds
Slide20 seconds
A pressure gauge should be used to set the speed
of the back section, Trendelenburg and flex control
functions.
To adjust:
1. Attach the pressure gauge onto the main oil
galley as shown in figure 1-19.
2. The gauge should read the following values
when operating the various control functions in
either direction. Turn the speed controls until
desired values are obtained.
When adjusting Flex/Reflex speed controls, set Reflex last.
Elevation - There is not a speed adjustment for
raising the table. The speed control will only affect
the rate of descent and it should equal the rate of
elevation.
Page 16
SECTION II MECHANICAL TABLE ADJUSTMENTS
2-1. Back Section Gear Mesh Adjustment
The gear mesh is adjusted by the use of an eccentric cam. This cam moves the gear teeth closer
together to eliminate gear lash. This adjustment
arrangement compensates for any wear between
the gears that might occur.
To adjust:
Loosen the cam locking allen set screw. Use an
allen wrench to rotate the eccentric cam. See
figure 2-1. Tighten the locking set screw when
adjustment is complete.
ECCENTRIC
CAM
SET SCREW
ALLEN
WRENCH
Any twisting or flexing of the back section as it
approaches the stalled position indicates that one
of the cylinders is not reaching its fully extended
position at the same time as the other. This
condition would require an adjustment.
To adjust:
Remove the seat section top for access to the cam
locking set screws and loosen the set screws. Use
an allen wrench to turn the cylinder eccentric cams
as required to shift either cylinder fore or aft as
needed so no twisting or flexing of the back section
is observed when it is stalled in the full up position.
See figure 2-2. Tighten the set screws and replace
the seat section top when the adjustment is completed.
BACK SECTION
82206-201
Figure 2-1. Eccentric Cam Adjustment
2-2. Hydraulic Cylinder Adjustment
The hydraulic cylinder rams that control both the
back and leg sections must move together so that
these sections are not twisted when operated. This
is accomplished by the use of eccentric cams that
move the cylinder bodies fore and aft to adjust their
effective stroke.
NOTE
Adjust gear mesh before adjusting eccentric cams for the back section.
a. Back Section
SEAT SECTION TOP
SET SCREW
BACK SECTION
CYLINDER
ECCENTRIC CAM
82206-202
Figure 2-2. Back Section Adjustment
b. Leg Section
Position the leg section all the way up. Both sides
of the leg section should stop moving at the same
time and should not show any signs of twisting.
Position the back section all the way up until it
stalls. Both sides of the back section should stop
moving at the same time and should not show any
signs of twisting.
Any twisting or flexing of the leg section as it
approaches the stalled position indicates that one
of the cylinders is not reaching its fully extended
position at the same time as the other and an
adjustment is required.
Page 17
82mm
120mm
7-1/2"
SLIDE
TOWARD
HEAD
13-1/4"
SLIDE
TOWARD
FOOT
82206-204
To adjust:
Loosen the cam locking set screws located inside
the table side frames. See figure 2-3. Use an allen
wrench to turn the cylinder eccentric cams as
required to shift either cylinder fore or aft as needed
so no twisting or flexing of the leg section is
observed when it is stalled in the above horizontal
position. Tighten set screws when proper adjustment is achieved.
LEG SECTION
LEG SECTION
CYLINDER
ECCENTRIC CAM
SET SCREW
82206-203
d. Slide and Kidney Lift Cylinders
If the Slide or Kidney Lift cylinder has been removed, the distance from the end of the piston to
the end of the cylinder housing must be checked to
make sure the functions will operate correctly.
With table top centered, the distance from the
end of the Slide piston to end of cylinder is:
Head End - 82 mmFoot End - 120 mm
The table top should slide 7-1/2" toward the head
and 13-1/4" toward the foot when positioned properly. Refer to figure 2-5.
With Kidney Lift all the way down, the distance
from the end of the Kidney Lift piston to end of
cylinder is:
Head End - 82 mmTail End - 11 mm
Figure 2-3. Leg Section Adjustment
c. Trendelenburg Cylinder Ball Joint
Inspect the Trendelenburg ball joint on a periodic
basis. Check for play of table top by sliding the table
top to each extremity and applying a load. Observe
for any movement in the joint. No visible play is
permitted. If movement is observed inspect the
tightness of the ball joint collar and the locking allen
bolt. See figure 2-4. Also inspect the ball socket for
signs of wear or metal particulate. Lubricate periodically using a white lithium based grease.
BALL JOINT
COLLAR
ALLEN BOLT
TRENDELENBURG
CYLINDER
82106-101
Figure 2-4. Trendelenburg Cylinder
Figure 2-5.
2-3. Head Section Adjustment
The head section can be adjusted to eliminate any
flexing throughout it's range of travel.
To adjust:
Place the head section in level position and remove
the top. See figure 2-6. Loosen but do not remove
the allen bolts securing the bearing block to the
frame. Loosen the allen bolt in the top of the frame
and turn the set screw as required to achieve
proper adjustment. One or both of the blocks may
require adjustment to achieve proper alignment.
Tighten all allen bolts when adjustment is complete. Test the head section throughout its range of
travel. Re-adjust as needed. Replace top section
when proper adjustment is achieved.
Page 18
ADJUSTMENT
ALLEN
BOLT
SET SCREW
ALLEN
BOLTS
82206-205
Figure 2-6. Head Section Adjustment
2-4. Slide Roller Adjustment
The pivot pins on the slide rollers are eccentric
cams. The rollers can be adjusted if required to
maintain proper top slide operation.
To adjust:
SLIDE
ROLLER
SET SCREW
8mm
ALLEN
WRENCH
82206-206
Figure 2-7.
2-5. Side Rails
Inspect each of the side rail sections. Make sure
that all retaining hardware is tight. Inspect the
gravity stops. Make sure that each gravity stop
moves freely. Clean, lubricate or replace as necessary. See figure 2-8.
Remove the Seat section top, the hose cover and
the right and left lateral tilt frame covers for access
to the top rollers.
1. Align the table top so the rollers to be
adjusted are contacting the slide bars.
2. Loosen the adjustment cam set screw and
adjust the roller using an 8mm Allen wrench. See
figure 2-7. To avoid any possible binding in the
slide mechanism, adjust the roller on the opposite
side of the table in the same manner (cam turned
toward same end of table on each side).
3. Lubricate rollers and slides with white lithium
based grease.
4. Adjust rollers so top slides smoothly with no
up or down movement of the table top.
5. When adjustment is complete, tighten set
screws, replace covers and top section.
SIDE
RAIL
GRAVITY
STOP
82106-102
Figure 2-8.
2-6. Casters
Clean and lubricate each of the casters. Remove
any debris caught in the casters and old grease.
Lubricate using a grease gun and conventional
wheel bearing grease. The casters should rotate
freely providing a smooth movement of the table
during positioning. Replace worn or defective casters as required.
3-1. Precautions
SECTION III HYDRAULIC TROUBLESHOOTING
Page 19
Before attempting to troubleshoot any hydraulic
problem on the table, please read through the precautions and notes below.
CAUTION
When disconnecting any of the hydraulic lines, fittings, joints, hoses, etc., for
the following control functions, be sure
these table surfaces are in their down
position or completely supported.
Elevation
Back Section
Leg Section
Kidney Lift
When working on the Trendelenburg
or lateral tilt hydraulic circuits, be sure
to support the table top. When working
on the brake system make sure the
brakes are completely retracted.
Once the problem has been determined, concentrate on that particular hydraulic circuit or control
function.
Listed below are the hydraulic components that
are common with all hydraulic circuits. If there is a
problem with any of them, it could affect all control
functions.
1. Motor/Pump Assembly
2. Reservoir
3. Pressure Relief Valve
4. Certain Oil Lines and Galleys
If there was a problem in the following components,
only one control function would normally be affected.
1. Mini-Valve
2. Slave Cylinder
3. Oil Lines
NOTE
WARNING
Failure to follow these precautions may
result in an uncontrolled oil spray and
damage to the table or personal injury.
3-2. Troubleshooting Notes
When troubleshooting a table malfunction, first
determine the following:
1. Does the problem affect all control func-
tions?
2. Does the problem affect only one control
function?
3. If the problem affects one control function is
it in both directions?
4. Is the problem intermittent?
Whenever a hydraulic line or component is replaced, bleed the air out of the
lines using the pump pressure before
making the final connection. After all
connections are tight, cycle the control
function back and forth two or three
times to purge the remaining air from
the system.
CAUTION
When installing new "O" rings use hydraulic oil or white lithium grease to
thoroughly lubricate the "O" rings and
cylinder. Keep everything clean.
Each complete oil circuit is shown on the following
pages. When troubleshooting a particular function,
refer to the appropriate oil circuit diagram and the
list of possible problems.
5. Is the problem no movement of a table
surface or does the table surface lose position?
Page 20
3-3. ELEVATION DIAGNOSIS CHART
Problem
Table will not elevate properly
Table will not descend properly
Table loses elevation
Reason
Pressure Relief Valve Not Set Properly
Low on Oil
Spool Valve Not Centered
Defective Pump
Defective Mini-Valve
Defective Solenoid or Wiring
Defective Relay Box or Pendant Control
Leaking Cylinder Hose
Uneven Weight Distribution
Incorrect Speed Adjustment
Defective Check Valve
Spool Valve Not Centered
Galled Slider Assembly
Defective Solenoid or Wiring
Defective Relay Box or Pendant Control
Uneven Weight Distribution
Incorrect Speed Adjustment
Spool Valve Not Centered
Defective Check Valves
Low on Oil
Pinched Hose
Defective Mini-Valve
Pressure Relief Valve Not Set Properly
Defective Solenoid or Wiring
Defective Relay Box or Pendant Control
Worn Ball Joint or Retainer Nut
Defective or Dirty Check Valve
Oil Leakage in Circuit
Air Inside Cylinder
Pinched Hose
Low on Oil
CHECK
VALVE
SPEED
CONTROL
MINI-VALVE
OIL FROM PUMP
TRENDELENBURG
CYLINDER
PLUMBING
TERMINAL
COPPER
LINE
FLEXIBLE
HOSE
INTERNAL
INTERNAL OIL RETURN TO RESERVOIR
Figure 3-2. Trendelenburg Circuit
82206-302
Page 22
3-5. LATERAL TILT DIAGNOSIS CHART
Problem
Lateral tilt function moves improperly
Lateral tilt function chatters or loses position
Reason
Incorrect Speed Adjustment
Spool Valve Not Centered
Defective Check Valves
Low on Oil
Pinched Hose
Defective Mini-Valve
Pressure Relief Valve Not Set Properly
Defective Solenoid
Defective Relay Box or Pendant Control
Defective or Dirty Check Valves
Oil Leakage in Circuit
Air Inside Cylinder
Pinched Hose
Low on Oil
SPEED CONTROL
MINI-VALVE
CHECK
VALVE
INTERNAL OIL
FROM PUMP
COPPER
LINE
LATERAL TILT
CYLINDER
PLUMBING
TERMINAL
INTERNAL
OIL RETURN
TO RESERVOIR
RIGHT CIRCUIT
LEFT CIRCUIT
FLEXIBLE
HOSE
82206-303
Figure 3-3. Lateral Tilt Circuit
3-6. FLEX SYSTEM DIAGNOSIS CHART
Page 23
Problem
Back Section or Trendelenburg function moves
improperly
NOTE
If Flex System does not function properly, check the back section and
Trendelenburg functions before adjusting the flex system.
Back Section or Trendelenburg function chatters
or loses position
Reason
Incorrect Speed Adjustment (Trendelenburg, Back
section or Flex - check with gauge)
Spool Valve Not Centered
Defective Check Valves
Low on Oil
Pinched Hose
Defective Mini-Valve
Pressure Relief Valve Not Set Properly
Defective Solenoid
Defective Relay Box or Pendant Control
Kidney Bridge Raised
Worn Ball Joint or Retainer Nut
Defective or Dirty Check Valves
Oil Leakage in Circuit
Air Inside Cylinder
Pinched Hose
Low on Oil
TO TRENDELENBURG
MINI-VALVE
CHECK
VALVE
SPEED
CONTROL
MINI-VALVE
INTERNAL
OIL FROM PUMP
INTERNAL OIL RETURN TO RESERVOIR
TRENDELENBURG
PLUMBING
TERMINAL
CIRCUIT
TO BACK SECTION
MINI-VALVE
BACK SECTION CIRCUIT
FLEXIBLE
HOSE
82206-304
Figure 3-4. Flex System Circuit
Page 24
3-7. BACK SECTION DIAGNOSIS CHART
Problem
Back Section function moves improperly
Back Section function chatters or loses position
Reason
Incorrect Speed Adjustment
Spool Valve Not Centered
Defective Check Valves
Low on Oil
Pinched Hose
Defective Mini-Valve
Pressure Relief Valve Not Set Properly
Defective Solenoid
Defective Relay Box or Pendant Control
Kidney Bridge Raised
Loose Retaining Hardware
Microswitch out of adjustment
Loose Table Top
Defective or Dirty Check Valves
Oil Leakage in Circuit
Air Inside Cylinder
Pinched Hose
Low on Oil
BACK SECTION
CYLINDER
COPPER
CHECK
VALVE
SPEED
CONTROL
MINI-VALVE
OIL FROM PUMP
NOTE: ONE SIDE SHOWN FOR CLARITY
PLUMBING
TERMINAL
LINE
INTERNAL
UP CIRCUIT
DOWN CIRCUIT
FLEXIBLE
HOSE
INTERNAL OIL RETURN TO RESERVOIR
Figure 3-5. Back Section Circuit
82206-305
3-8. LEG SECTION DIAGNOSIS CHART
Page 25
Problem
Leg function moves improperly
Leg function chatters or loses position
Reason
Incorrect Speed Adjustment
Spool Valve Not Centered
Defective Check Valves
Low on Oil
Pinched Hose
Defective Mini-Valve
Pressure Relief Valve Not Set Properly
Defective Solenoid
Defective Relay Box or Pendant Control
Loose Retaining Hardware
Microswitch out of adjustment
Loose Table Top
Defective or Dirty Check Valves
Oil Leakage in Circuit
Air Inside Cylinder
Pinched Hose
Low on Oil
LEG SECTION
CYLINDER
NOTE: ONE SIDE SHOWN
FOR CLARITY
COPPER
LINE
CHECK
VALVE
SPEED
CONTROL
MINI-VALVE
UP CIRCUIT
DOWN CIRCUIT
PLUMBING
TERMINAL
FLEXIBLE
HOSE
INTERNAL
OIL FROM PUMP
INTERNAL OIL RETURN TO RESERVOIR
Figure 3-6. Leg Section Circuit
82206-306
Page 26
3-9. SLIDE DIAGNOSIS CHART
Problem
Slide function moves improperly
Slide function chatters or loses position
Reason
Incorrect Speed Adjustment
Spool Valve Not Centered
Defective Check Valve
Low on Oil
Pinched Hose
Defective Mini-Valve
Pressure Relief Valve Not Set Properly
Defective Solenoid
Defective Relay Box or Pendant Control
Loose Retaining Hardware
Microswitch out of adjustment
Loose Table Top
Defective or Dirty Check Valve
OiI Leakage in Circuit
Air Inside Cylinder
Pinched Hose
Low on Oil
SLIDE
CYLINDER ASSEMBLY
PLUMBING
TERMINAL
CHECK
VALVE
SPEED
CONTROL
MINI-VALVE
PISTON
PISTON
COPPER
LINE
INTERNAL
OIL FROM PUMP
INTERNAL OIL RETURN TO RESERVOIR
Figure 3-7. Slide Circuit
82206-307
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