L4610 hst hydraulic leaks

swampFOXX

New member

Equipment
L4610
Nov 9, 2016
9
0
1
Princess Anne
Recently bought a 2001 l4610. Appears to have a slight leak (drip/25 sec)on the inlet lines to the hydraulic filter body (not hst filter). Do seals here commonly go bad and could this cause the system to draw enough air to make the fluid in the sight glass frothy?

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Tooljunkie

Well-known member
Lifetime Member

Equipment
L1501,home built carry all, mini plow blade.
May 13, 2014
4,150
33
48
61
Lac Du Bonnet, Manitoba,Canada
Filter is on suction side, so aerating entire hydraulic ststem is possible. This a case of loose line nuts,hose clamps or deteriorating hose.
Been about 3 years since i was under a 4610,so dont recall exactly what you are looking at. I remember repairing a slight leak but i think it was a loose fitting.
 

North Idaho Wolfman

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Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
33,240
8,606
113
Sandpoint, ID
Recently bought a 2001 l4610. Appears to have a slight leak (drip/25 sec)on the inlet lines to the hydraulic filter body (not hst filter). Do seals here commonly go bad and could this cause the system to draw enough air to make the fluid in the sight glass frothy?

Sent from my SM-N910V using Tapatalk
On that model there is 3 O-ring that seal the lines that go too, and come from the filter housing, and yes they can go bad and leak.
There is a ton of factors that determine when they break down, I would say the most common is abuse and then lack of maintenance, the hydraulic oil becomes contaminated and swells and distorts at the O-rings.