Coupler size for testing pumps?

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Ty

Member
Joined
Jun 27, 2007
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8
Is there a standard size coupler at the pump to hook up a pressure guage? The tip mikes out at 1/2" but I know there is more to it than that. I have a Bobcat 220 mini Is there a good place on the web for hydraulic parts for valves and pistons ? Thanks Ty
 
The easiest place to check pressure is at your quick couplers for your aux hydraulics.
From what i have seen, all the fittings Bobcat use are JIC, most of which are 3/8" from what i have seen on "7" series loaders. The larger machines may use larger fittings for obvious reasons.
To check flow you will need special gear that will tap i to the system and restrick flow to check flow at a specific load etc.
Spare parts are available after market, you just need to search.
 
The easiest place to check pressure is at your quick couplers for your aux hydraulics.
From what i have seen, all the fittings Bobcat use are JIC, most of which are 3/8" from what i have seen on "7" series loaders. The larger machines may use larger fittings for obvious reasons.
To check flow you will need special gear that will tap i to the system and restrick flow to check flow at a specific load etc.
Spare parts are available after market, you just need to search.
What I think he is talking about , Tazza , is on the excavators there are mini quick coupler males on each stage of the 3 stage pump , I was never able to find a match back then for them in the after market , they are much smaller than the aux couplers , the dealer is very expensive I remember as I have one but can't really remember if it was $50 or $90 US each , you really don't need it as if you unscrew the coupler there is a #8 (3/8) JIC male fitting under the coupler , takes a minute longer but gets the job done
 
What I think he is talking about , Tazza , is on the excavators there are mini quick coupler males on each stage of the 3 stage pump , I was never able to find a match back then for them in the after market , they are much smaller than the aux couplers , the dealer is very expensive I remember as I have one but can't really remember if it was $50 or $90 US each , you really don't need it as if you unscrew the coupler there is a #8 (3/8) JIC male fitting under the coupler , takes a minute longer but gets the job done
Yes, I have a piston that hesitates mid stroke in both directions ( I would think that would be piston related? ) and a low power circut. Wanted to start with the old girls heart. Sounds like a plan. Purchased a Bobcat manual for 65.00. It's ok, but not to technical with sizes or trouble shooting. It seems to have decent schematics though. Thanks
 
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