Removing The Hose Set Assembly - Arjohuntleigh FLOWTRON UNIVERSAL Service Manual

Flowtron Universal Service Manual
8

Removing the Hose Set Assembly

WARNING: BEFORE REPLACING THE HOSE SET ASSEMBLY, MAKE SURE THE PUMP
UNIT HAS BEEN ISOLATED FROM THE MAINS/POWER SUPPLY BY
REMOVING THE MAINS/POWER PLUG FROM THE WALL SOCKET.
CAUTION: The elbow retaining cover on the hose set assembly is not designed to be
removed from the pump more than a couple of times. If the screw cover is
opened and closed more than two or three times, the screw cover hinge may
split, and then the complete hose set assembly will have to be replaced.
The hose set assembly (Fig 34, Item 10) comprises a length of tube with a pump connector at one end
and a garment connector at the other.
The pump connector comprises an elbow connector, through which the pneumatic flow is directed, and
an elbow retaining cover, which secures the elbow connector to the top case assembly on the pump.
The garment connector contains a sense coil which is used to automatically recognise the type of
garment fitted to the connector (e.g. foot garment, or single chamber calf garment).
A cable passes through the middle of the tube and out of the side of the elbow retaining cover, to connect
the sense coil in the garment connector to a 6-way connector on the control board assembly in the pump.
To remove the hose set assembly from the top of the pump, carry out the following procedure:
8.1 Using a small flat-bladed screwdriver, carefully lift the screw cover on the elbow retaining cover
to reveal the screw underneath (Refer to Figure 35).
8.2 Remove the screw (Fig 34, Item 20), and retain for future use.
Closed Screw Cover
Elbow Retaining Cover
Insert small flat-bladed
screwdriver here
8.3 Turn the elbow retaining cover approximately 20 degrees counterclockwise, to the "free" position
(Refer to Figure 36).
Note: To turn the elbow retaining cover more easily, use the tube and elbow connector to
provide extra leverage. Turn the tube and elbow connector counterclockwise until the
elbow connector touches the screw cover, and then continue turning them to turn the
elbow retaining cover (Refer to Figure 36).
Issue 2
Sep 2009
Figure 35 - Lifting the Hose Set Connector Flap
SER0009
Raised Screw Cover
Tube
Pump Repair
Screw
Elbow
Connector
Chap 5
Page 9