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Old 29 March 2015, 11:13   #1
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Bravo pump questions.

I ve unpacked my new Honwave t38ie today and tried to inflate it using a Bravo BST 12 pump. With the pump there are a number of little white plastic adapters but despite one of the adapters that is the correct diameter for the valve, the pump is not inflating to anywhere near the correct pressure.

I ve read up and see that the valves are Halkey Roberts type.

Questions.

1. Am i correct in that I should unscrew the valve centre so it releases the spring to inflate the tubes ?

2. Do I need a Halkey Roberts adapter for my pump so that the valve opens correctly with the adapter connected ?

It seems that the pump is having to work against the non return valve and that is causing the Bravo to kick out well below actual pressure....I can't get any higher than 0.2 bar. The pump should inflate to 0.8bar ?

Help please

Dave.
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Old 29 March 2015, 11:45   #2
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If the boat is only inflating so far, it sounds like the high pressure part of the pump is not kicking in. Have you set the pump up for the right pressure?
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Old 29 March 2015, 11:56   #3
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The centre part (yellow) NRV is keep most of the air in till you get the cap screwed on, which is the main seal.to deflate the sib, just push it down and turn it a 1/4 turn.
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Old 29 March 2015, 12:12   #4
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>>>just push it down and turn it a 1/4 turn.

Isn't that the deflate position??

>>>1. Am i correct in that I should unscrew the valve centre so it releases the spring to inflate the tubes ?

Yes you turn it about quarter turn so it pops out into the spring valve position. The other position is for when you deflate the boat.

Re valve fitting... Had this issue with my Honwave. The white plastic adaptors with the Bravo do not fit the Honwave valve properly. Best option for me was to order a spare Honwave pump hose from the dealer. This came with the correct end fitting and I connected it to the end of the bravo hose which is a bit short anyway.

Job sorted for about 12.
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Old 29 March 2015, 12:25   #5
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Thanks everyone.....I think I ve also been a bit of a muppet too
I thought the bravo was cutting out when it changed 'tone' but thanks to youtube I see that is just the pump switching from high volume to high pressure....durrrh !

Tomorrow is another day, so I'll drag it all out and try again....plus I ve ordered the correct Halkey Roberts adapter now as well.

Thanks for the replies.

Dave.
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Old 29 March 2015, 12:50   #6
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If push comes to shove, you normally can use the white adapter with the cross brace which will pump up to full pressure but they have a habit of bursting out as soon as you walk away.
The correct adapter is the way to go.

Phil
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Old 30 March 2015, 11:24   #7
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I modified my HR adapter with a wire cross-piece that opens the valve when inserted. Cross- drilled the adapter, and press-fit the bit of wire. Wire was a bit of .050" or so SS, inserted just above the locking lug tangs (I eyeballed it and it came out about right.)

jky

I should say that the modification was specifically for the Bravo 12HP; the bulk-fill turbine stage won't kick in unless you have free flow through the valve. The piston stage will still work (assuming you have the pump set to a pressure higher than the valves resistance), but would take forever to fill (and probably wear the pump out pretty quick.)
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Old 30 March 2015, 13:31   #8
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the boat looks good fully pumped up jelly. What wheels have you got on the front?
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Old 30 March 2015, 16:43   #9
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Yes I had another go with the bravo today and taped on the white adapter until the HR adapter arrives. Got the deck up to 0.8bar very quickly.

The wheels are courtesy of a kayak c-tug, I ll see how they go.





Working on a seat now that will hopefully sit inside ......I'll post up some pics when done.
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Old 30 March 2015, 16:59   #10
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How are the transom wheels? Do they wobble like hell in the sockets? Mine had a silly spring loaded pin that located in a hole in the sockets, useless! I have drilled thro the socket and fitted drop nose pins, still wobbles though. Next step is new sandhopper wheels about 3 times as wide in the hope that it will make the wheels more stable.

Cantona
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