New Tractor: Failed 3rd function hose/adapter

Ben Dow

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Equipment
Kubota L3302HST
May 14, 2026
3
0
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Benton City, WA
I have 10 hours on my new L3302. While using the grapple, the 3rd function hose started to squirt fluid when closing the grapple. I have attached a picture of the source of the leak, which shows a bulging o-ring. Could this have been operator error? Any other potential causes? I have already sent an email to our dealer with pictures/video but it is too early to expect a response. Any thoughts are appreciated.
 

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NCL4701

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L4701, T2290, WC68, grapple, BB1572, Farmi W50R, Howes 500, 16kW IMD gen, WG24
Apr 27, 2020
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Central Piedmont, NC
Looks like it need a new o-ring. Failing at 10 hours, probably just didn’t seat quite right when installed.

Possible operator error? No.
 
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TheOldHokie

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L3901/LA525, G2160/RCK60, G2460/RCK60
Apr 6, 2021
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Myersville, MD
windyridgefarm.us
I have 10 hours on my new L3302. While using the grapple, the 3rd function hose started to squirt fluid when closing the grapple. I have attached a picture of the source of the leak, which shows a bulging o-ring. Could this have been operator error? Any other potential causes? I have already sent an email to our dealer with pictures/video but it is too early to expect a response. Any thoughts are appreciated.
Thats an ORB fitting that was not properly tightened.

Dan
 
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North Idaho Wolfman

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
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Sandpoint, ID
There are mutiple Third function kits the dealer could have used.
So to say the O-ring used would be a real guess on anyone's part.

Loosen it up reset the O-ring in it's slot then retighten the fittings.
 
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TheOldHokie

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L3901/LA525, G2160/RCK60, G2460/RCK60
Apr 6, 2021
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windyridgefarm.us
There are mutiple Third function kits the dealer could have used.
So to say the O-ring used would be a real guess on anyone's part.

Loosen it up reset the O-ring in it's slot then retighten the fittings.
Well I will guessg with some confidence :)

If thats an ORB fitting as it appears the o-ring is a 900 series.

#906 for a -06 fitting
#908 for a -08 fitting

Dont try to make something else work.

Dan
 
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