Huntleigh AlphaBed, Service Manual

Page: 43 / 94

25 Replacing the Compressor Valve Bodies
25.1 Remove/disassemble the compressor/AV bracket assembly and remove the silencer bag
(Refer to Page 19, Section 22.1, 22.2, 22.3 and 22.4).
25.2 Unclip the bellows, part of bellows armature assembly from the valve body (Refer to Page 20,
Fig 11, Items 10 or 20 and 40).
25.3 Unscrew and remove the securing nut (Fig12, Item 40) on the side of the compressor housing.
25.4 Remove the valve body (Fig 12, Item 20) and Valve body washers (Fig 12, Item 50).
25.5 Remove the valve flap securing pads and the valve flaps (Fig 12, Items 70 and 60)
25.6 Discard the old valve body and replace with the same type.
25.7 Repeat Sections 25.3 to 25.6 as necessary to replace the other valve body.
25.8 When replacing the valve flaps and valve flap securing pads, make sure that the valve flap sits
flat over the hole in the valve body and the valve securing pad is pushed fully on to the lug.
25.9 Position the replacement valve body and secure with screw (Fig 12, Item 20) and nut. Fit the
bellows to the valve body.
25.10 Fit a new silencer bag and gasket, then replace the compressor lid (Refer to Page 19 and
reverse the operations carried out in Section 22.4, 22.3 and 22.2).
25.11 Refit the compressor/AV bracket assembly to the pump case (Refer to Page 13, Section 15.2,
15.3 and 15.4 (new style AV mounts) or Page 15, Section 17.3, 17.4 and 17.5 (old style AV
mounts)).
Issue 2 Chap 3
Nov 2001 SER0004 Page 23
Mini Pump Service Manual Pump Repair