Medivators DSD EDGE User manual

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NNUAL PM INSTRUCTIONS
PREVENTATIVE MAINTENANCE KIT
For use with PM Kit 78401-176 120V and 78401-177 230V
Prior to performing the preventative maintenance:
Carefully read through the procedure prior to performing the PM.
Precautions should be taken to prevent spillage of disinfectant when performing the PM.
Personnel should wear the appropriate Personal Protective Equipment (PPE) when performing the preventative
maintenance. Refer to the Material Safety Data Sheet (MSDS) for PPE information.
The machine must be in an idle state prior to the start of the preventative maintenance.
The changing of the 0.2 micron internal water filter, and air filters are not part of the PM procedure. However, if the
filter change times coincide with the PM, they can be performed at this time. Refer to the DSD EDGE operations
manual for instructions on how to change the filters.
Tools Required:
7/16-inch nut driver, open end wrench or socket wrench
9/64-inch, 3/32-inch and 3/16-inch hex keys
Small flat-bladed screwdriver
A set of Phillips screwdrivers
Valve stem wrench for air actuated valves (MEDIVATORS P/N MW03-0002)
John Guest tool (MEDIVATORS P/N 47049-157)
Lint free cloth/rags
Teflon tape
Silicone grease (MEDIVATORS P/N 17599-463)
Torque driver 0-36 in-lb. range
120 Volt Kit 78401-176
PM Kit Part Content Part number QTY
Hydraulic Valve Seals 78401-261 1 (Kit of 10 seals)
Solenoid Valve Seal MV01-0035 4
Peristaltic Tube Set MT01-0500 4
Check Valves 78401-260 1 (Kit of 8 valves)
Pump Assembly 78400-684 2
Drain Rebuild Kit 78400-658 2
Overflow Rebuild Kit 78400-659 2
Sample Port Seal 41013-001 2
Strainer 43100-254 2
O-rings SSG Reservoir 43100-302 28
Check valve ball for SSG Res 47049-658 4
O-ring Removal Tool 47049-687 1
Instructions 50098-296 1
O-ring MO01-0004 2
Spring for SSG 47049-415 4
Sensor Cover MC13-0015 2
Alcohol/Detergent Inlet Valve MV01-0040 2

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PREVENTATIVE MAINTENANCE KIT
230 Volt Kit 78401-177
PM Kit Part Content Part number QTY
Hydraulic Valve Seals 78401-261 1 (Kit of 10 seals)
Solenoid Valve Seal MV01-0035 4
Peristaltic Tube Set MT01-0500 4
Check Valves 78401-260 1 (Kit of 8 valves)
Pump Assembly 78400-685 2
Drain Rebuild Kit 78400-658 2
Overflow Rebuild Kit 78400-659 2
Sample Port Seal 41013-001 2
Strainer 43100-254 2
O-rings SSG Reservoir 43100-302 28
Check valve ball for SSG Res 47049-658 4
O-ring Removal Tool 47049-687 1
Instructions 50098-296 1
O-ring MO01-0004 2
Spring for SSG 47049-415 4
Sensor Cover MC13-0015 2
Procedure for flushing SSG unit prior to servicing
Before performing repairs on a SSG unit, the following procedure must be performed to flush Part A and B of the
RAPICIDE
®
PA solution from the unit. The flushing of the unit minimizes exposure to the disinfectant during repair or
preventative maintenance.
Tools Required
1/2 gallon or larger container for holding water. The vessel should be able to fit in the chemical drawer once the part
A and B bottles are removed. Two empty part A and B bottles can be used. If using empty bottles, rinse thoroughly
and remove the labels from the bottle to prevent confusion with actual disinfectant.
Table salt.

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PROCEDURE
CAUTION: PPE must be worn before proceeding. Refer to the MSDS for guidance.
Preparing the SSG Unit:
Both sides of the machine must be in an idle state.
The floating lids must be installed in both sides and the lids closed.
Fill the container 3/4 full of water. Add ten grams (2 teaspoons) of table salt for every 5 liters of water. If using the
empty bottles, add ten grams (2 teaspoons) of table salt to each filled bottle.
Remove the uptake tubes from both the part A and B bottles. Remove the bottles from the drawer.
Set the container of water in the drawer and set both uptake tubes in the container. See figure 1
Figure 1

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1. Flushing the SSG Unit Side A
Enter the diagnostics mode
Enter DIAG 37; SSG COMMAND will now be displayed.
Press 3 to flush side A reservoirs. The following will be displayed:
Fill L: □□□
Dose L: □□□
Pressing 1 will initiate an auto fill of both part A and part B reservoirs with water for basin A. The unit will
automatically fill and stop the fill when reservoirs are full using the reservoir sensing system
Display while reservoirs are filling.
Fill L: →←
Dose L: □□□
When the A and B reservoirs are full for the A side basin, the display will appear as below.
Fill L: →□*
Dose L: □□□
To send the contents of A and B SSG reservoirs to the basin, press 2. (Note: if performing this function, the part
A and B of the HLD will be pumped into the basin, and remain there until manually drained) Caution: this is
concentrated solution. After performing the same flush on side B, the instructions will discuss how to drain and
rinse the basin.
REPEAT step 1.
2. Flushing the SSG Unit Side B
Press cancel until SSG COMMAND is once again displayed.
Press 4 to flush side B reservoirs. The following will be displayed:
Fill R: □□□
Dose R: □□□
Pressing 1 will initiate an auto fill of both part A and part B reservoirs with water for basin B. The unit will
automatically fill and stop the fill when reservoirs are full using the reservoir sensing system.
Display while reservoirs are filling.
Fill R: →←
Dose R: □□□

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PREVENTATIVE MAINTENANCE KIT
When the A and B reservoirs are full for the B side basin, the display will appear as below.
Fill R: →□*
Dose R: □□□
To send the contents of A and B SSG reservoirs to the basin, press 2. (Note: if performing this function, the part
A and B of the HLD will be pumped into the basin, and remain there until manually drained.) Caution: this is
concentrated solution.
REPEAT step 2.
Exit the Diagnostic function by pressing CANCEL until the main screen is displayed.
3. DRAINING AND RINSING THE BASIN
Enter SETUP 41 ENTER and allow the water tempering function to allow water to flow for several minutes
and then stop the function by pressing STOP. Verify the basin is drained completely before pressing STOP
to complete the process. If excessive smell is noted, repeat this function
Press the station select button and perform the above step on this other basin
4. DRAINING UPTAKE TUBES SYSTEM
The uptake tubes remain full after the purge. This fluid should be removed now or will pour out when work on the
SSG begins
Dump the water in the container that the uptakes have been placed in. Place the tubes back in the empty
container
Disconnect each of the four connectors on the SSG and pull back the hoses until disconnected. The fluid will
then flow out of the uptake into the container. See figures 2 and 3
Reconnect the hoses
Remove the container

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Figure 2 Figure 3
Preparation
Close the external incoming water valve.
Bleed the 0.2-micron filter by pressing SETUP, 43, ENTER. This will allow the main water valve (#14) to open.
Place a small container under the bleeder hose to collect the water. Slowly open the bleeder valve until all flow
stops. Close the valve. Press STOP twice.
Unplug the DSD EDGE AC Power cord from wall outlet.
Air tank will be purged after the removal of the SSG Dosing Unit.
3/4–inch Valve Maintenance
Parts Required Part number QTY
Drain Rebuild Kit 78400-658 2
Overflow Rebuild Kit 78400-659 2
Strainer 43100-254 2
(one for each side)
O-ring MO01-0004 2
Tools Required
#2 Phillips screwdriver
9/64-inch Allen
3/16-inch Allen
Silicone grease

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Figure 4
To rebuild the 3/4-inch drain valves, it is recommended to remove the 3/4” drain manifold from the DSD EDGE
endoscope reprocessor.
Figure 5
Remove1”hose
fromthis
elbow
Solenoid
Harness
1”drainhose
removedfrom
barbfitting
4manifoldretainingscrews

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PREVENTATIVE MAINTENANCE KIT
Figure 6
Electrical
Disconnect the solenoid harness.
Hydraulic
Loosen the two 1-inch hose clamps from the two 1-inch lines connecting to the valve manifold. Carefully slip the two
hoses off the barbed elbows. Have a rag at the ready to catch any fluid that may remain in the manifold. Refer to
figure 5.
Disconnect the disinfectant line. Have a rag at the ready to catch any fluid that may remain in the manifold. Refer to
figure 6.
Mechanical
Valves 9 & 11
Remove the four manifold mounting screws with a 9/64-inch Allen wrench. Support the manifold to prevent stripping
of the threads. Have a rag at the ready to catch any fluid that may remain in the manifold. Refer to figure 5.
Once assembly is removed, set on a counter top to service.
Remove the four solenoid screws at the end of the solenoid. Slowly pull back the solenoid for there is a spring
inside. Set aside the solenoid for reuse. The spring will be replaced with one from the rebuild kit. See figure 7.
Disinfectantline

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Figure 7
Remove the four valve block bolts using a 3/16-inch Allen wrench. Remove the valve block from the manifold.
Remove the O-ring.
Starting with the Drain Valve (valve #11), use one Drain Rebuilding Kit (78400-658), for rebuilding the valve.
Preparation of the rolling seal on the new valve block is important. Failure to follow instructions can
result in valve failure.
Carefully remove the rubber bands, plastic covering from the valve. Refer to figures 8 and 9. Be careful not to press
the plunger in or out for this can cause maladjustment to the rolling seal.
Figure 8 Figure 9
Valve10
retainingscrews
4solenoid
screws
4valveblockscrews
(Bottomleftboltnotshown)

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Place the valve block on the manifold and reattach the four valve block screws. Using a crossing pattern, torque
screws to 35 in-lbs.
Insert the new spring into the end of the plunger. Carefully place the solenoid over the plunger. Insert and tighten
the four solenoid retaining screws, tighten in a cross pattern to 8 in-lbs.
Repeat procedure for the Overflow Valve (valve #9) using the other Drain Rebuild. Kit (78400-659).
Valves 10, Sample Port Valve
Remove the two valve retaining screws for valve 10. Refer to figure 7.
Pull the solenoid back. There will be a black spacer on the shaft. This is retained for reuse. Refer to
figure 10.
Retain the spring, this will be reused
Remove the valve seal by pulling off the plunger. Refer to figure 11.
Press new seal onto the shaft.
Reattach the rebuilt valve to the manifold. Make sure the spacer and seal are not pinched.
Figure 10 Figure 11
Insert and tighten the two retaining screws.
S
p
acer
Seal
Plun
g
er
Newseal

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Disinfectant filter screen replacement
Figure 12 Figure 13
Remove the old screen and discard. Replace with new screen (43100-254).
Insert the new screen into the cap, making sure it fits into the groove.
Be sure the red O-ring is still in place in the cap before reattaching.
Screw on the cap.
Procedure for re-installation of the manifold
Tools Required
#2 Phillips screwdriver
9/64-inch Allen
Silicone grease
Mechanical
Attach the new O-ring (MO01-0004) to the manifold. This O-ring mates with the neck of the basin. Add a touch of
silicone grease to hold the O-ring into position. Refer to figure 14.

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Figure 14
Attach the manifold mounting screws, tighten with a 9/64-inch Allen wrench. Support the manifold to prevent
stripping of the threads. See figure 5.
Hydraulic
Reattach the two 1-inch hose lines to the valve manifold. Reattach the 1-inch hose clamps and tighten.
Reattach the disinfectant line. Refer to figure 6.
Electrical
Reconnect the solenoid harness
Side B Procedure for Valve Manifold Removal
Before the side B manifold can be removed, the alcohol and detergent bottles must be moved out of the way.
Detergent/Alcohol Mounting Bracket removal
Tools Required
John Guest tool
3/16” Allen wrench
Hydraulic
Remove the Detergent and Alcohol bottles, set aside.
Remove the feed lines from the elbow on top of each of the Detergent and Alcohol bottles using a John Guest tool.
Addadabof
siliconegreasehere
toretaintheo‐ring

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Electrical
Follow the red level sensor cable to the sensor harness. Disconnect the sensor connector. The plugs should be
labeled, but verify before disconnecting.
Figure 15
Mechanical
Using a 3/8 inch Allen wrench, remove the four Detergent /Alcohol mounting bracket screws. Support the bracket
while removing the screws. Refer to figure 16.
Set bracket aside.
Removefeedlines
fromeachbottle
Redsensorcable
Removebottles

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Figure 16
Removal of the SSG Dosing Unit
The use of PPE is important throughout the PM, however, for the following sections involving the SSG unit, it is
imperative to wear the appropriate PPE, including eye protection.
Mechanical
Fully extend the disinfection bottle holding tray. See figure 17.
Remove any supply bottles from drawer. Carefully remove the uptake tube from both bottles, wipe dry and replace
the caps on both bottles to prevent spillage.
Lift up the black locking latch on the left side while pushing down the latch on the right side, pull the drawer off the
rails and set aside. See figure 18 and 19.
The four internal mounting screws are now accessible. Using a Phillips screwdriver, remove the two screws in front
and the two rear screws. See figure 20.
Once the four mounting screws are removed, slide the SSG module from the unit and set it on the floor. The cables
and hoses are long enough so they do not have to be disconnected.
Fourmountingscrews

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Figure 17
Now that the SSG unit is removed, access to the air tank pressure relief valve is possible. Pull the pressure relief
ring on the bottom of the air tank. Hold it open until all the air escapes.
Figure 18
Pulloutbottle
drawer
Latchondrawer
slides.Pullupleft
side,pushdown
rightside.

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PREVENTATIVE MAINTENANCE KIT
Figure 19
Figure 20
Rearmounting
screws

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Replacement of the SSG Reservoir O-ring
The use of PPE is important throughout the PM, however, for the following sections involving the SSG unit, it is
imperative to wear the appropriate PPE, including eye protection.
Parts Required Part number QTY
O-rings 43100-302 28
Rubber Check Valve ball 47049-658 4
O-ring Removal Tool 47049-687 1
Springs 47049-415 4
Tools Required
#1 Phillips screwdriver
Small flat blade screwdriver
Hydraulic
Disconnect the four hose quick connects (each holds a group of three hoses). Have a rag ready to capture any
liquid remaining in the tubing at the connectors.
Figure 21
HoseQuickdisconnects
Electricalconnections
Eightcoverscrews

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O-ring Removal Tool
When removing the any of the 28 SSG O-rings, it is important not to use a hard tool such as a metal pick. This could
scratch the seat where the O-ring resides. The use of the provided O-ring removal tool should help reduce this
occurrence. See figure 22

Figure 22
O‐ringRemovaltool47049‐
687(Coloroftoolmayvary).

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Mechanical
Remove the eight cover screws. These screws tap into the motor housing below. All screws are necessary to
prevent excess vibration of the motors during operation.
Remove cover and set aside.
Remove the pumps one at time to replace the two O-rings. To remove the pump, disconnect the electrical
connection on the board and remove the pin holding the pump in place. See figure 23. Once the pump is
removed the O-rings may be attached to the pump or the reservoir, discard the O-rings. See figure 24 and 25.
Lightly lubricate the O-rings with silicone oil, place the new O-rings on the pump and reattach the pump to the
assembly. Do not insert them into the reservoir first. Damage of the O-ring will occur if placed in the reservoir
first, and then the pump is pressed into place.
When removing every other pump a spring and ball will be seen in the top of the reservoir. Remove the spring
and ball. Discard the original ball and spring and replace with the new ball and spring supplied in the PM kit,
there are four total, one for each tank. See figure 26
Figure 23 Figure 24

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Figure 25 Figure 26
Figure 27
Each reservoir has three ports extending to the right side (when looking at the SSG from the front of the machine). Each
port has an O-ring that needs to be replaced. The part number is 43100-302, same O-ring as used on the pumps.
Remove the O-ring from the tank connection.
Coat each new O-ring with a light coat of silicone grease. Apply the new O-ring to the tank connection. See
figure 27. There are three O-rings per tank.
NOTE:Spring
andball