4. Keep valve retainers (one located in inlet valve chamber and the other in between the outlet valves).
5. Note that the 2 holes on the valves are not evenly spread. Match these with the large holes on the valve
retainer.
6. Pass the 2 screws through the 2 large holes in the valve retainer and valves, then place resulting assembly
in outlet chamber - located on side of pump.
7. Position valves in the centre of the chamber and pass screws through the pump body.
8. Position second valve retainer in the inlet chamber so the screws are aligned with the smaller holes and then
tighten the screws.
9. Reassemble ports and covers.
Changing the Diaphragm
1. Remove cover and remove clamping screw and plates to release the diaphragms
2. Place new diaphragm in position between the two clamping plates, attach clamping screw and tighten.
3. Repeat for the other side.
To convert a deck mounting model (BP3000) to a bulkhead model (BP3010)
1. Remove covers and diaphragms.
2. Remove the fulcrum bolt by unscrewing the nyloc nut.
3. Remove the lever assembly and re-fit through the alternative aperture in the pump body.
4. Reposition fulcrum bolt, nyloc nut and tighten.
5. Reassemble diaphragms and covers.
Hand wheel nut
DP3804
Deckplate kit
Underdeck bracket
Buffer
2” (50mm) Port
Valve chamber gasket
Valve retainer
Outlet valve
Hand wheel nut
M10 Nylon washer
Clamping plate
M6 Washer
Lever assembly
Handle assembly
Cover
M6 Nut
Diaphragm
Body
M8 Nyloc nut
Valve chamber gasket
Clamping plate
1 1/2” (38mm) Port
M6 x 20 Hex. Hd. Screw
M6 x 20 Ch. Hd. Screw
Buffer
Stud
Inlet valve & gasket
M10 Nylon washer
M6 x 20 Ch. Hd. Screw
1 1/2” (38mm) Port
Inlet valve & gasket
2” (50mm) Port
Fig. 5 Exploded diagram
5
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