Dyna-Form Air Pro-Plus Service Manual Issue 4

DYNA-FORM AIR PRO-PLUS

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SERVICE MANUAL

Definition of Symbols Used Caution: Warning of possible hazard to system, patient or staff. Warning of possible electrical hazard. Important operational information.

Contents Control Unit�������������������������������������������������������������������������������������������������������������������������������������������������������������������������4 Internal Descriptions������������������������������������������������������������������������������������������������������������������������������������������������������������5 Basic System Checks�����������������������������������������������������������������������������������������������������������������������������������������������������������7 Fuse Check and Replacement����������������������������������������������������������������������������������������������������������������������������������������������8 Printed Circuit Board (PCB) Check�����������������������������������������������������������������������������������������������������������������������������������������9 Printed Circuit Board (PCB) Replacement ...10 Standard Pressure Test ...11 Compressor Replacement ...13 Synchronous Motor Replacement . ...15 Connector Replacement ...18 Connector Plate Replacement ...19 Air Filter Maintenance ...21 Rubber Feet Replacement ...22 Hanging Hook Replacement . ...24 Troubleshooting ...26 Safety . ...29 Care & Cleaning ...30

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The following section outlines the steps and procedures to follow if there is a suspected fault in the Control Unit. If a repair seems unmanageable or the issue falls outside the scope of serviceable repairs, please return the Control Unit to the Manufacturer. Malfunction of the Control Unit may be due to the failure of one of the replaceable electrical components of the Control Unit, including the compressor, print circuit board and timing motor rotary valve. Alternatively, a lack or loss of system pressure can be attributed to a variety of causes, including an incorrectly attached CPR Tag; a loosely connected or leaking Air Cell; leaking Air Hose; or faulty fuse. Insufficient system pressure is identified when the Visible LED flashes, and the corresponding Pressure Setting Warning signals display. Should the Control Unit fail to operate, or system pressure fail to reach normal operating status, please follow the steps below to isolate the cause of the problem and make the relevant repair.

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SERVICE MANUAL

The electronically controlled Control Unit provides the air supply to the Mattress. The unit is operated by a digital touch membrane on the front display panel which controls eight comfort pressure settings; Alternating or Static Mode for treatment or transfers respectively; Max Firm mode for rapid inflation to maximum pressure to create a firm surface; and Control Unit Lockout to prevent accidental changes to the settings. The Visual LED indicator and Audible Mute completes the operator controls. The visible and audible function has a number of LED indication sequences depending on the cause of the failure. On the side of the unit are two air connectors (male and female) for quick connection of the two hole handle. The connectors include a press button release system for ease of use. The mains supply to the unit can be easily disconnected and is designed to detach if pulled too firmly – protecting the internal wiring from damage. The quality of the Control Unit underpins the reliability and pressure reduction capabilities of the System. At the centre of the Control Unit lies the compressor, which runs at a rapid and continuous rate whenever the unit is operational. Continuous rapid movement places compressor materials under high stress and heat conditions, which can make the unit susceptible to wear and tear over a long period of time. To minimise noise and vibration, the compressor is housed within a strong metal cage, secured on all sides by rubber mounts. These mounts serve to insulate the rest of the unit from the vibration of the compressor.

1

Printed Circuit Board (PCB)

2

Compressor

3

Compressor Cage

4

Static Actuator

5

Alternation Timer Motor

6

Power Socket (IEC Connector)

7

Audible Warning Speaker

8

Safety Fuse

9

Quick Release Air Hose Connector - Female

3 2 1

Quick Release Air Hose Connector - Male

10

11

Connector Plate

8

12

Rubber Feet

10

9

7

11

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Basic System Checks Before commencing any service procedure, the following basic checks should be completed to ensure that system fault or failure is not due to an oversight on behalf of the user. Set up the system and check the following:

2 C heck the Air Hoses are securely attached to the Control Unit (they should ‘click’ on).

1 Ensure all power cords and leads are firmly attached and that the system is connected to a working power source (with correct voltage).

3 Remove the Mattress Top Cover and check the deflation valve is firmly connected.

4 Check each Air Cell is firmly connected to the internal air hose/s. Once these simple checks are complete, proceed with the service and repair as outlined in the following procedures.

Service Procedure Flowchart Follow the flowchart to establish the recommended steps for system check and repair. Control Unit is inoperable (Display Panel fails to activate when unit is connected to a power source)

YES

NO

Fuse Check and Replacement

STILL INOPERABLE

fails to reach operation pressure or loses pressure

Basic System Checks YES

(check power & power cords; Air Hose Attachments; CPR Tag; Air Cell attachment)

STILL LOW PRESSURE

FIXED FIXED

Control Unit is operational but

the motor is ‘grinding’ or making an unusual sound

OTHER PROBLEM

Standard Pressure Test

Synchronous Motor Replacement

FIXED

Return to Manufacturer

NOT FIXED

PRESSURE OK

Air Leak Test

PRESSURE NOT OK

DEFLATING

Compressor Replacement

Air Cell Replacement

NOT FIXED YES

PCB Replacement

PRESSURE OK

FIXED

NO

CONFIRMS FAULTY PCB

CHECK FAILS

FIXED

Control Unit is operational but

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Printed Circuit Board (PCB) Check

Return to Manufacturer

Return to Manufacturer

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FIXED

SERVICE MANUAL

Fuse Check and Replacement Testing fuse for damage and replacing a blown fuse Control Unit failure may be the result of a blown fuse. Always check the fuse before opening the unit and performing any other internal component test procedures. Note: When changing the replaceable fuse, use same rating fuse only (T1AL/250V).

The following tools are required: • Flat Head Screwdriver The following replacement parts are required:

1 S witch off power supply to the Control Unit and remove the power cord from the electrical socket in the base of the unit.

2 Using a level surface, place the Control Unit on its base, with easy access to the black round fuse cap located on the side of the unit (closest to the connectors).

3 Insert a small screwdriver into the groove on the fuse cap and turn counterclockwise in the direction of the arrow (quarter turn) to remove the fuse plug and single fuse.

5 Insert a new fuse (or the undamaged fuse) into the plug. Push against the force of the spring and turn clockwise with the screwdriver (quarter turn).

6 Reconnect the power cord to the Control Unit and switch on power supply. If Control Unit still fails to operate, the problem may be due to a faulty circuit board. Proceed to Printed Circuit Board Check procedure. If the unit switches on but fuse “blows” again, repeat the steps to replace the damaged fuse but do not reconnect power

as damage may be due to a faulty compressor. Proceed to Standard Pressure Test procedure.

• 250V fuse (M8260138)

4 Visually inspect the fuse – check if the metal filament inside the fuse cylinder is disconnected or snapped – and discard if damaged (or re-insert if undamaged).

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DYNA-FORM AIR PRO-PLUS

Printed Circuit Board (PCB) Check Testing for a faulty circuit board by ‘piggybacking’ a working spare

If the Control Unit still fails to operate after checking and replacing a damaged fuse, the next step is to test the Printed Circuit Board (PCB) for failure. To determine if the PCB has failed, always test the Control Unit using a working spare.

The following tools are required: • Phillips Head Screwdriver • Wire Clippers The following spare parts are required:

1 S witch off power supply to the Control Unit, disconnect the Air Hoses and remove the power cord from the electrical socket in the base of the unit.

2 Using a soft cloth to protect the unit from damage, place the Control Unit on a level work surface with base facing upwards.

3 Use a Phillips Head Screwdriver to remove the four screws that secure the housing. Place the screws and washers in a safe place (such as small container or jar) to prevent loss. Hold the unit firmly and turn it over, face upwards on its base.

B e careful not to drag the internal wires and tubing during this process. Before continuing, ensure no electrical leads are stretched and that all electrical connectors on the Printed Circuit Board (PCB) are firmly connected. You may need to prop the top housing case to prevent strain on the electrical cords.

5 Disconnect the four electronic power leads by cutting the cable ties that secure the leads to the PCB. Carefully pull the plastic casing (not the wiring) to disconnect.

6 Disconnect the remaining three connections from the PCB (two flat digital leads and one air tube). Be sure to note the location of all seven connections on the circuit board for easy replacement. Leave the disconnected PCB in the Control Unit during testing.

• 1 x PCB (in known working condition) (M8260143)

4 Gently loosen the top and bottom housing. Once loose, hold the power socket (IEC connector) to prevent from catching while lifting the top cover and leaning it back on your work surface.

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SERVICE MANUAL

Printed Circuit Board (PCB) Check

7 Take the working spare PCB and reconnect all seven leads into the corresponding connectors (four electronic leads; two digital; one air hose).

8 Reconnect mains power, switch on the Control Unit and check the Display Panel. If the unit now operates, the internal PCB has failed and needs replacing. Proceed to the Printed Circuit Board Replacement procedure for next steps.

If the Control Unit still does not operate, the unit needs to be returned to the Manufacturer for further repair or replacement. a Switch off power supply to the Control Unit, remove the spare PCB and reconnect the internal PCB (reconnect the seven power leads to the circuit board) before closing the housing. b Return the Control Unit to the Manufacturer in accordance with standard procedures.

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DYNA-FORM AIR PRO-PLUS

Printed Circuit Board (PCB) Check Replacing a faulty circuit board

Having established a fault with the PCB by following the Printed Circuit Board Check procedure detailed previously (steps 1 through 7), replace the faulty PCB with a new PCB.

The following tools are required: • Needle Nosed Pliers • Phillips Head Screwdriver The following replacement parts are required:

8 S witch off power supply to the Control Unit before disconnecting the spare ‘test’ PCB. Disconnect all seven leads while noting the location of each lead on the circuit board.

9 Using Needle Nosed Pliers, unclip the PCB from the top housing. Note the orientation of the PCB before removing it from the unit. Dispose of the faulty PCB in an environmentally safe manner.

10 U npack the replacement PCB. Align the circuit board against the four holes and carefully reconnect the clips by pressing firmly into place.

12 Before closing the housing, make sure all power leads and hoses are free from the side edges. Ensure the regulator tubing will not kink when the top cover is closed.

13 Align the top and bottom housing before slowly pushing closed. Ensure the seal is properly aligned around the housing, including the air hose connectors, fuses and power connector.

15 Use a Phillips Head Screwdriver to replace the four screws plus washers and tighten to secure the housing together.

• 1 x PCB (M8260143)

11 R econnect all seven leads into the corresponding connectors on the circuit board.

14 Holding the top and bottom housing firmly together, turn the Control Unit upside down, with base facing upwards.

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16 Connect the Control Unit to mains power and switch on the Control Unit to confirm operation.

SERVICE MANUAL

Standard Pressure Test Testing airflow and checking for a faulty compressor

The Control Unit compressor is designed for long life, and backed by a two-year warranty from the Manufacturer, however compressor failure can occur and will require replacement. The Standard Pressure Test should be carried out to check the compressor is working at full operational capacity and that sufficient airflow is being generated to maintain maximum Mattress specifications. By directly connecting the compressor to the Pressure Test Equipment (Sphygmomanometer and Air Flow Meter), this test will confirm system pressure readings at maximum and minimum airflow (in free flow mode or with different degrees of back pressure applied). If the Pressure Test fails and pressure readings do not match required settings, the compressor should be replaced and the test repeated. The Control Unit must be allowed to “warm up” before undertaking the Standard Pressure Test, to ensure the diaphragm inside the compressor has loosened and is operating at maximum capacity. After opening the unit, reconnect power and allow the system to run for a minimum of thirty minutes before commencing this test.

The following tools are required: • Phillips Head Screwdriver • Pressure Test Equipment > Sphygmomanometer (mmHg reading) > Air Flow Meter (Lpm reading)

2 Using a soft cloth to protect the unit from damage, place the Control Unit on a level work surface with base facing upwards.

Pressure Test Equipment Set Up One air hose is connected to the rear of the Sphygmomanometer and another to the base of the Air Flow Meter. These two air hoses are then connected by a ‘Y’ piece to form a single air hose outlet. Check all hose attachments are secure before commencing the test. Initially set the equipment to free flow mode – ensure the airflow valve at the front of the Air Flow Meter is fully open (turn the valve clockwise to open).

3 U se a Phillips Head Screwdriver to remove the four screws that secure the housing. Place the screws and washers in a safe place (such as small container or jar) to prevent loss. Hold the unit firmly and turn it over, face upwards on its base.

1 Switch off power supply to the Control Unit, disconnect the Air Hoses and remove the power cord from the electrical socket in the base of the unit.

4 Gently loosen the top and bottom housing. Once loose, hold the power socket (IEC connector) to prevent from catching while lifting the top cover and leaning it back on your work surface. Be careful not to drag the internal wires and tubing during this process. Before continuing, ensure no electrical leads are stretched and that all electrical connectors on the Printed Circuit Board (PCB) are firmly connected. You may need to prop the top housing case to prevent strain on the electrical cords.

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DYNA-FORM AIR PRO-PLUS

Standard Pressure Test

5 Reconnect the Control Unit to mains power and switch on. The unit must run for a minimum of 30 minutes to “warm up” before pressure testing commences. Leave the unit in a safe place during the warm up period.

a Ensure the equipment is set to ‘free flow mode’ (i.e. no resistance or back pressure against the full flow of air from the compressor). The valve at the front of the Air Flow Meter should be fully open. If not, turn clockwise to open the valve to maximum. With the system in free flow mode, the ball bearing inside the Air Flow Meter should rise to a minimum of 4.5+ litres per minute. The Sphygmomanometer pressure reading should be low (approximately 10 mmHg).

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6 A fter the 30 minute “warm up” period has elapsed, detach the internal air hose from the compressor (some force may be required) and replace with the air hose from the Pressure Test Equipment (for directly connection to the compressor). Push the air hose firmly until it fully covers the connector.

b S lowly close the valve on the Air Flow Meter to reduce airflow air and simulate ‘back pressure’ (i.e. to emulate the weight of a patient lying on the mattress, which forces pressure back against the flow of air from the unit). Slowly close the valve until the Sphygmomanometer pressure reading reaches 30 mmHg. At 30 mmHg, the ball bearing inside the Air Flow Meter should drop to a minimum of 3+ litres per minute.

To check operational capacity of the compressor, test each pressure setting as outlined in the following steps. The table above right, summarises

c Continue to increase back pressure resistance. Slowly close the valve on the Air Flow Meter until the Sphygmomanometer pressure reading reaches 60 mmHg. At 60 mmHg, the ball bearing inside the Air Flow Meter should drop to a minimum of 2+ litres per minute.

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Base Pressure mmHg

Air Flow Lpm

>10

4.5+

30

3+

60

2+

120>

0

the expected pressure and air flow measurements. If air flow measurements fail to meet the specified minimum levels during any stage of the pressure test, the compressor is not operating at full capacity and needs to be replaced. Remember that a 30 minute “warm up” period is required.. 

d Finish testing by fully closing the Air Flow Meter valve (maximum resistance). The ball bearing inside the Air Flow Meter should drop to 0 and the Sphygmomanometer pressure reading should rise to 120+ mmHg.

SERVICE MANUAL

Standard Pressure Test

e If air flow measurements fail to meet the specified minimum levels during any stage of the pressure test, the compressor is not operating at full capacity and needs to be replaced. Proceed to Compressor Replacement procedure.

If all pressure and air flow measurements met the expected levels, the problem may be due to a leaking Air Cell or other defect with the Mattress. Close the Control Unit and proceed to Mattress procedures.

7 To close the Control Unit, first disconnect the Pressure Test Equipment air hose from the compressor and reattach the internal air hose, using gentle pressure to ensure a firm fit.

8 Before closing the housing, make sure all power leads and hoses are free from the side edges. Ensure the regulator tubing will not kink when the top cover is closed.

9 Align the top and bottom housing before slowly pushing closed. Ensure the seal is properly aligned around the housing, including the air hose connectors, fuses and power socket.

10 H olding the top and bottom housing firmly together, turn the Control Unit upside down, with base facing upwards.

11 Use a Phillips Head Screwdriver to replace the four screws plus washers and tighten to secure the housing together.

12 Connect the Control Unit to mains power and switch on the unit to confirm operation.

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DYNA-FORM AIR PRO-PLUS

Compressor Replacement Replacing a faulty compressor

Having established a fault with the compressor by following the completing the Standard Pressure Test procedure detailed previously (steps 1 through 6), replace the faulty compressor with a new compressor.

The following tools are required: • Wire Clippers (or sharp knife) • Needle Nosed Pliers • Phillips Head Screwdriver The following replacement parts are required:

7 S witch off power supply to the Control Unit and remove the power cord from the electrical socket in the base of the unit before disconnecting the Pressure Test Equipment air hose.

8 Using Wire Clippers (or a sharp knife) carefully cut and remove the cable tie securing the power leads between the two halves of the unit.

• 1 x Compressor (M8260139) • 1 x Cable Tie

10 U sing a Phillips Head Screwdriver 11 Unpack the replacement loosen the two screws at the end compressor. Carefully thread of the cage furthest from the air the power lead through the base hose inlets. Then remove the of the cage before sliding the screws closest to the air hose new compressor into position inlets, placing carefully aside. (with power lead closest to the Tilt the cage upwards to slide the PCB, and air hose connector compressor over the housing positioned towards base). struts. Ensure the compressor Replace the two screws before power lead does not get caught in tightening the loosened screws. the process. Dispose of the faulty compressor in an environmentally safe manner.

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9 Check the internal compressor power lead and air hose is disconnected before removing the eight rubber mounts that secure the compressor within the metal cage. It is easier to extract each mount using a pair of needle nosed pliers to gently twist free rather than pulling directly with force. If rubber mounts break, make sure all pieces are removed from inside the unit. Undamaged mounts can be reused.

12 S ecure the compressor to the metal cage by connecting the eight new rubber mounts, starting with four mounts on one side of the cage (bottom followed by top), then four mounts on opposite side. When connecting mounts, it helps to prop or hold the compressor within the cage to better align the mount holes. Insert the tapered end of the rubber mount through the corresponding hole in the cage, gently pushing through until the mount can be twisted around the nose of the pliers and pulled firmly into place

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SERVICE MANUAL

Compressor Replacement

13 V isually check that each mount is secure – gently move the compressor within the cage to ensure all mounts are connected and the compressor is correctly suspended with the metal cage.

14 R eattach the air hose to the compressor, using gentle pressure to ensure a firm fit.

15 R econnect the compressor power lead to the circuit board and attach a new cable tie to secure all power leads as before.

16 B efore closing the housing, make sure all power leads and hoses are free from the side edges. Ensure the regulator tubing will not kink when the top cover is closed.

17 A lign the top and bottom housing before slowly pushing closed. Ensure the seal is properly aligned around the housing, including the air hose connectors, fuses and power connector.

18 H olding the top and bottom housing firmly together, turn the Control Unit upside down, with base facing upwards.

19 U se a Phillips Head Screwdriver to replace the four screws plus washers and tighten to secure the housing together.

20 Connect the Control Unit to mains power and switch on the Control Unit to confirm operation.

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DYNA-FORM AIR PRO-PLUS

Synchronous Motor Replacement Replacing a faulty synchronous motor

The synchronous motor runs the rotovalve that operates the timing mechanism for the alternation cycle. If the rotovalve becomes worn or damaged it no longer spins smoothly and the unit will emit a distinct ‘grinding’ noise. If you hear an uncharacteristic noise from the motor when the Control Unit is switched on, the synchronous motor needs to be replaced.

The following tools are required: • Phillips Head Screwdriver • Wire Clippers (or sharp knife) • Flat Head Screwdriver (small) • 7/32 Inch Socket Wrench

1 S witch off power supply to the Control Unit, disconnect the Air Hoses and remove the power cord from the electrical socket in the base of the unit.

2 Using a soft cloth to protect the unit from damage, place the Control Unit on a level work surface with base facing upwards.

3 U se a Phillips Head Screwdriver to remove the four screws that secure the housing. Place the screws and washers in a safe place (such as small container or jar) to prevent loss. Hold the unit firmly and turn it over, face upwards on its base.

6 Trace the power lead running from underneath the synchronous motor to its connection on the circuit board. Disconnect this lead from the circuit board by carefully pulling the plastic casing (not the wiring) and gently remove the lead from under the compressor cage and leave it free.

7 U sing thumb and forefinger, push down firmly on the plastic rotovalve casing to release tension while removing the split pin – a deal of downward pressure is required. While maintaining downward pressure, take a small screwdriver or other implement to gently lift the split pin from the top of the motor shaft. Place the pin in a safe place for future replacement.

The following replacement parts are required: • 1 x Synchronous Motor (M8260147) • 1 x Cable Tie

4 Gently loosen the top and bottom 5 Using Wire Clippers (or a sharp housing. Once loose, hold the knife) carefully cut and remove power socket (IEC connector) to the cable tie securing the power prevent from catching while lifting leads between the two halves of the top cover and leaning it back the unit. on your work surface. Be careful not to drag the internal wires and tubing during this process. Before continuing, ensure no electrical leads are stretched and that all electrical connectors on the Printed Circuit Board (PCB) are firmly connected. You may need to prop the top housing case to prevent strain on the electrical cords. 16

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SERVICE MANUAL

Synchronous Motor Replacement

The rotovalve is made of two plastic circular casings held together by lubricant material, and should remain attached during removal. If the top casing comes free during this process, place in a safe place until time to replace the rotovalve, when it can be reattached.

8 G  ently lift the plastic rotovalve up and over the shaft, sliding the ‘L’ shaped metal bracket through the black plastic handle at the side of the rotovalve, to reveal the spring and synchronous motor beneath.

11 L ift the motor off its mounts and 12 U npack the replacement remove, ensuring the power lead motor. Carefully thread the does not get caught in the process. power lead under the base of Dispose of the faulty motor in an the compressor cage before environmentally safe manner. repositioning the new motor over the shaft and on its mounts, ensuring bolt holes are correctly aligned.

9 Remove the spring and place it in a safe place for future replacement.

10 U sing the socket wrench, unscrew the two bolts that hold the motor in place, noting the position of both the bolts and the ‘L’ shaped metal bracket (closest to the compressor). This bracket helps secure the plastic rotovalve casing to the motor and should also be removed and placed in a safe place with bolts for future replacement.

13 R eplace the ‘L’ shaped metal bracket over the bolt hole closest to the compressor – it must be positioned to accommodate the plastic handle on the rotovalve. If not correctly positioned, the rotovalve will move during operation.

14 T o test correct alignment of the motor and bracket, insert both bolts to secure the motor but finger tighten only. Gently place the rotovalve over the shaft to check the ‘L’ shaped bracket is correctly positioned to slide through the plastic handle at the side of the rotovalve. Once alignment is verified, remove the rotovalve and using the 7/32 inch socket wrench, tighten both bolts to firmly secure the motor in place. Be careful not to overtighten.

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DYNA-FORM AIR PRO-PLUS

Synchronous Motor Replacement

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15 R eposition the spring over the shaft, wider coils at the base (finer coils on top).

16 If the top plastic casing of the rotovalve has come lose, reposition it and hold firmly in place before replacing the rotovalve over the shaft, while sliding the ‘L’ shaped bracket through the plastic handle at the side of the rotovalve.

17 F irmly push down on the rotovalve while replacing the split pin through the top of the shaft. A significant amount of pressure is required to counteract the force of the spring.

18 R econnect the motor power lead to the circuit board and attach a new cable tie to secure all power leads as before.

19 T est the motor before closing the housing. Connect the Control Unit to mains power and switch on to ensure the motor works and rotovalve is turning (with no adverse noise). It the Control Unit fails to operate, the unit needs to be returned to the Manufacturer for further repair or replacement. Switch off power supply to the Control Unit before closing the housing. Return the Control Unit to the manufacturer in line with standard procedures.

20 Before closing the housing, make sure all power leads and hoses are free from the side edges. Ensure the regulator tubing will not kink when the top cover is closed.

21 A lign the top and bottom housing before slowly pushing closed. Ensure the seal is properly aligned around the housing, including the air hose connectors, fuses and power connector.

23 U se a Phillips Head Screwdriver to replace the four screws plus washers and tighten to secure the housing together.

22 Holding the top and bottom housing firmly together, turn the Control Unit upside down, with base facing upwards.

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24 C onnect the Control Unit to mains power and switch on the Control Unit to check function.

SERVICE MANUAL

Connector Replacement Replacing the air hose quick release connectors

Both the male and/or female quick release connectors on the side of the Control Unit can be removed and replaced in the event of damage or breakage. Single connectors can be unscrewed and replaced in the event of individual damage. For more significant damage to the connector plate, or when damaged connector cannot be removed, the Connector Plate should be replaced. Proceed to the Connector Plate Replacement procedure.

The following tools are required: • Adjustable Wrench The following replacement parts are required: • Male Connector (M8260121) • Female Connector (M8260122)

1 S witch off power supply to the Control Unit, disconnect the Air Hoses and remove the power cord from the electrical socket in the base of the unit.

2 Using an Adjustable Wrench, unscrew the damaged quickrelease connector from the side of the unit by turning it counterclockwise – a degree of force may be required to initially loosen the connector.

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3 Insert the replacement connector (male or female as appropriate) and turn clockwise to tighten until firm.

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DYNA-FORM AIR PRO-PLUS

Connector Plate Replacement Replacing the Connector Plate

If the inset Connector Plate is cracked or damaged, or if it is not possible to gain leverage on a damaged or snapped single connector for individual replacement, the Connector Plate must be replaced.

The following tools are required: • Phillips Head Screwdriver • Adjustable Wrench The following replacement parts are required:

1 S witch off power supply to the Control Unit, disconnect the Air Hoses and remove the power cord from the electrical socket in the base of the unit.

2 Using a soft cloth to protect the unit from damage, place the Control Unit on a level work surface with base facing upwards.

3 U se a Phillips Head Screwdriver to remove the four screws that secure the housing. Place the screws and washers in a safe place (such as small container or jar) to prevent loss. Hold the unit firmly and turn it over, face upwards on its base.

6 Detach both internal air hoses from the inside of the Connector Plate and slide the damaged plate from the side of the unit. Dispose of the Connector Plate in an environmentally safe manner.

7 U npack the replacement Connector Plate and slide into place. Ensure the male and female connectors are securely inserted. Press firmly to reattach the internal air hoses as before.

• Connector Plate

4 Gently loosen the top and bottom 5 Be careful not to drag the internal housing. Once loose, hold the power wires and tubing during this socket (IEC connector) to prevent process. Before continuing, from catching while lifting the top ensure no electrical leads are cover and leaning it back on your stretched and that all electrical work surface. connectors on the Printed Circuit Board (PCB) are firmly connected. You may need to prop the top housing case to prevent strain on the electrical cords.

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