Huntleigh AlphaBed, Руководство по обслуживанию

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35 Replacing the Pressure Control Flaps and Air Bag
35.1 Turn the control knob arbour fully counter-clockwise (Fig 19, Item 10). Hold the upper pressure
control flap (Fig 19, Item 20) in position and withdraw the pivot pin (Fig 19, Item 30). Carefully
remove the upper flap and the lower flap (Fig.19, Item 40) together with the low pressure
operating spring and brass disc (Fig 19, Items 50 and 60).
35.2 Remove and discard the pressure control disc (Fig 19, Item 70) from the upper flap. Replace
with new item.
35.3 Remove and discard the air bag assembly (Fig 19, Item 80). Replace with a new item. Ensure
the air bag is secure by pushing in the centre and rotate it slightly to ensure it is seated.
35.4 Ensure that the low pressure adjustment screw (Fig 19, Item 90) is fully disengaged. Carefully
locate the brass disc (Fig 19, Item 60), boss uppermost in the rebate in the upper flap. Locate
the spring (Fig 19, Item 50) on the disc and position the lower flap (Fig 19, Item 40) against the
spring.
35.5 Refitting is the reverse of the above procedure. When refitting, hold the group of components
together and position them on the pressure control module. Insert the pivot pin (Fig 19, Item
30) to retain the flaps.
Issue 2 Chap 3
Nov 2001 SER0004 Page 37
Mini Pump Service Manual Pump Repair