Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
753 pump *hums*
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support SkidSteer Forum:
Message
<blockquote data-quote="Tazza" data-source="post: 18567" data-attributes="member: 82"><p>FIXED</p><p>The problem was the previous owner changed the gear pump, it was a different brand that didn't have an oil feed hole from the hydrostatic pump through into the inlet of the gear pump. Without the port the pressure built up till the cold weather port opened up at 400 PSI. If that wasn't there the oil filter or oil cooler would have blown. It could have even blown the seals on the hydro pump!</p><p>I'm sure people will think I'm MAD but i got the engine and pump out, removed the hydraulic pump and took the plate off. I then drilled a 1/2" hole through and into the inlet side of the pump. This made the pump essentially the same as the one it should have had fitted.</p><p>Put it all together and its PERFECT, quiet as a mouse! the valve opens up when you lower the arms quickly which is exactly how it should work.</p><p>FYI - Removing the pump and motor as one is MUCH easier than it may seem. I removed the engine/pumps on my own this morning, repaired the pump and with the help of my dad and a mad mate that popped over, we had it back in, plumbed and wired up within an hour! Filled with oil and it came back to life. Its messy as you have to crack hydraulic lines but its not at all difficult, just build a lifting jig.</p></blockquote><p></p>
[QUOTE="Tazza, post: 18567, member: 82"] FIXED The problem was the previous owner changed the gear pump, it was a different brand that didn't have an oil feed hole from the hydrostatic pump through into the inlet of the gear pump. Without the port the pressure built up till the cold weather port opened up at 400 PSI. If that wasn't there the oil filter or oil cooler would have blown. It could have even blown the seals on the hydro pump! I'm sure people will think I'm MAD but i got the engine and pump out, removed the hydraulic pump and took the plate off. I then drilled a 1/2” hole through and into the inlet side of the pump. This made the pump essentially the same as the one it should have had fitted. Put it all together and its PERFECT, quiet as a mouse! the valve opens up when you lower the arms quickly which is exactly how it should work. FYI - Removing the pump and motor as one is MUCH easier than it may seem. I removed the engine/pumps on my own this morning, repaired the pump and with the help of my dad and a mad mate that popped over, we had it back in, plumbed and wired up within an hour! Filled with oil and it came back to life. Its messy as you have to crack hydraulic lines but its not at all difficult, just build a lifting jig. [/QUOTE]
Verification
Post reply
Forums
Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
753 pump *hums*
Top