Sanderson 622 fuel problems

Rs chunk

Member

• Apr 10, 2018

• #1

hi guys my friend has a old 622 when he bought it the guy before had fitted a bulb primer like a boat on the main fuel pump and a check valve, anyway the bulb perished so we fitted new fuel pipe and binned it and the check valve apart from a struggle to get fuel to prime to the filters all was well for most of the time apart from the fuel running back occasionally and sometimes cutting out. So recently we had the transmission out for a refurb so took tank off and cleaned it out, tonight we got tank back on and fitted a new lift pump went to bleed it and can’t get the pump to lift the fuel you can blow back to tank no probs and use airline to pressurise tank to get diesel up to filter but primer still won’t work. Did these forklifts have issues ever with lifting the fuel up from the tank? Half thinking of a wee 12v pump

 

E

essexpete

Member

Location

Essex

• Apr 10, 2018

• #2

I assume it is a Ford engine?
I think the lift pump set up was different on different eras of engines with perhaps three types of main pumps over the years.
Are you sure there is not some air being drawn somewhere. Is there a fuel fed start heater for example?

 

Rs chunk

Member

• Apr 10, 2018

• #3

Yes ford engine with in-line pump. Can’t mind is there a heater plug fitted air leak would need to be between the fuel tank and lift pump but can’t see where it all seems fine

 

TeaBread

Member

• Apr 10, 2018

• #4

Is elbow in fuel line clear (above tank and under one piece mudguards) not sure it is the problem but they always block in spite of 'airline' clearing

 

Mursal

Member

• Apr 10, 2018

• #5

Fill it to the brim would you begetting air inside the tank?

 

Rs chunk

Member

• Apr 11, 2018

• #6

Mursal said:

Fill it to the brim would you begetting air inside the tank?

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It's only half full I'm wondering what the suction pipe is like as it's hidden behind a baffle and you can't remove it from tank you can't even tell is there dirt behind the baffle/bulkhead

 

REStracTORATION

Member

• Apr 11, 2018

• #7

Can you rig the lift pump up to suck out of a container does it prime then

 

Rs chunk

Member

• Apr 11, 2018

• #8

REStracTORATION said:

Can you rig the lift pump up to suck out of a container does it prime then

Click to expand...

Yip easily al try that later

 

7

7610 super q

Never Forgotten

Honorary Member

• Apr 11, 2018

• #9

My SB 65 has an electric lift pump. Many, many pipes & joints, all need checking nown again. Slightest leak draws in air, and won't start in the morning.
Daft plastic filter in the tank too, which clogs up easily.

 

Rs chunk

Member

• Apr 11, 2018

• #10

Silly question what's a sb 65 silly fuel tank on this you can tank suction pipe out or see it as there is a bulkhead in tank so maybe pipe is rusty. Going to try out of a jug after tea see will it suck out of it

 

7

7610 super q

Never Forgotten

Honorary Member

• Apr 11, 2018

• #11

Rs chunk said:

Silly question what's a sb 65 silly fuel tank on this you can tank suction pipe out or see it as there is a bulkhead in tank so maybe pipe is rusty. Going to try out of a jug after tea see will it suck out of it

Click to expand...

Sanderson Masted forklift. Different to telehandler, I know, but same era......

 

F

Fearnodeere

New Member

• Apr 12, 2018

• #12

Had the same problem,it was the elbow above the tank blocked as mentioned by TeaBread.

 

Rs chunk

Member

• Apr 12, 2018

• #13

After much farting about I found my problem! As usual something simple and obvious the new lift pump was drawing air round the circular lid tighten the bolt and she sucks. Hopefully previous issues will be sorted due to washing out the tank

 

Flat 10

Member

Arable Farmer

Location

Fen Edge

• Apr 12, 2018

• #14

Glad you are sorted, My 725 has a 12V pump fitted. Blows back to tank fine but doesn't like being less than half full of diesel .

 

mikep

Member

Location

Arse end of Surrey, UK

• Apr 12, 2018

• #15

Electric pumps are so cheap that I fit them to any machine that has a whiff of a problem. Put them as near the tank as possible and leave the old lift pump Insitu. Solved loads of problems for about £15.00. of that doesn't work get a submersible.

 

Flat 10

Member

Arable Farmer

Location

Fen Edge

• Apr 16, 2018

• #16

Off topic but does anyone know if the later 726 suffered from fraying ram seals clogging the suction filter or had they updated to better materials?

 

Rs chunk

Member

• Apr 16, 2018

• #17

mikep said:

Electric pumps are so cheap that I fit them to any machine that has a whiff of a problem. Put them as near the tank as possible and leave the old lift pump Insitu. Solved loads of problems for about £15.00. of that doesn't work get a submersible.

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We ended up fitting a electric pump seemed fine parked on flat but left it pointing down hill over night and fuel ran back. Sorted now

 

mikep

Member

Location

Arse end of Surrey, UK

• Apr 16, 2018

• #18

Rs chunk said:

We ended up fitting a electric pump seemed fine parked on flat but left it pointing down hill over night and fuel ran back. Sorted now

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Surprised as most electronic pumps are one way only. When I fitted one to my 247 I eventually took the old lift pump out of the loop and that cured the problem. Don't usually do that but was still sometimes was cavitating.

 

BredRedHfd

Member

BASIS

Location

NE Derbyshire

• Apr 16, 2018

• #19

Flat 10 said:

Off topic but does anyone know if the later 726 suffered from fraying ram seals clogging the suction filter or had they updated to better materials?

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Yes, suffered also. Bought one several years ago, been stood a bit. After a day carting bales, next day, hardly lift. Was bunged suction filter. Managed to change filter, but put new one on hand tight. The next time, managed to change without draining oil with a dextrous arm and a vet inspection glove! Gone now, but great machine. Well ahead of competition in their day...

 

Rs chunk

Member

• Apr 17, 2018

• #20

mikep said:

Surprised as most electronic pumps are one way only. When I fitted one to my 247 I eventually took the old lift pump out of the loop and that cured the problem. Don't usually do that but was still sometimes was cavitating.

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Sorry my writing was confusing we fitted a new mechanical lift pump and though it was fine but wasn't so then we fitted the electric one and it's sorted now