Who's Online Now
0 registered members (), 9 guests, and 16 spiders.
Key: Admin, Global Mod, Mod
Newest Members
Hemihotrodca, veloman, Tellcoma, B&B fabrication, bart4541
263 Registered Users
Forum Statistics
Most Online248
Mar 14th, 2020
Popular Topics(Views)
14,216 77-MGB
Top Posters(All Time)
JIM 593
sonny 536
GatorS 209
Doc 68
GLyford 61
Fshook 39
chma 37
TomB 34
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
Previous Thread
Next Thread
Print Thread
Rate Thread
Hyd. pump mount position #1906 12/24/2020 04:21 PM
Joined: Jan 2019
Posts: 536
sonny Offline OP
MBN old hand
OP Offline
MBN old hand
Joined: Jan 2019
Posts: 536
On hydraulic pumps, can all/most of them be mounted standing on end? --- Was asking cause I need to make a system using a vertical crank shaft engine for the power unit and wanted to run pump either belt or direct connect. --- never seen one this way so ideas???? Also drive end could be either up or down --- would that make a difference or is one way better than the other?

"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands."
Re: Hyd. pump mount position [Re: sonny] #1912 12/24/2020 11:03 PM
Joined: Jan 2019
Posts: 209
GatorS Offline
MBN enthusiast
MBN enthusiast
Joined: Jan 2019
Posts: 209
I don't see how it would matter the orientation. Belt or inline driven is another thing though. If you belt drive something you put side force on the outboard bearing from the belt tension. If a pump is designed to be direct driven, it won't have the right bearings to be belt driven. You can drive a jack shaft mounted on bearings with a belt then direct drive the pump from the jack shaft. That way you isolate the belt forces from the input shaft of the pump. The bearings take all the side force.

Only thing about orientation is making sure the hydraulic fluid is flowing correctly to the suction and it's not sucking air on initial startup.

Machine Builders Facebook Page

Report site issues on the FB page if you can't on the main site.
Re: Hyd. pump mount position [Re: sonny] #1913 12/25/2020 11:57 AM
Joined: Jan 2019
Posts: 536
sonny Offline OP
MBN old hand
OP Offline
MBN old hand
Joined: Jan 2019
Posts: 536
Got it on the pump style --- was told a long time ago that pump must be designed for belt/chain drive and direct would have to have outboard bearing mount. One of my pumps is belt drive off of an old combine and the other had been direct front crank mount with thick flex plate to cushion it. This one would need the outboard bearing. I have one that according to specs. could run belt/chain/or direct. Just have to watch which one I use.
On the res. mount, I always put them above the pump a bit so fluid is gravity fed down to the pumps to keep air from being sucked in.
These pumps I have do have rotational arrows on them. The specs. on one is either way---just gotta hook the hoses to the right port!
Just never mounted one on end before. could run with twist belt and put pump horizontal but dont really want too.---prefer straight runs on the v-belts IF possible.

"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands."
Re: Hyd. pump mount position [Re: sonny] #1916 12/26/2020 08:33 AM
Joined: Jan 2019
Posts: 593
JIM Offline
MBN old hand
MBN old hand
Joined: Jan 2019
Posts: 593
a Lot of stuff is coming with vertically mounted direct drive power plants. Sonny, if you have a pump that is bi-directional then you can direct couple it. the pump on the mini hoe is designed for direct drive But it's belt driven due to space availability on the front end of the shaft. it also allowed me to set in a slight speed reduction because it's a 11 GPM 2 stage pump. it's been in operation since 2005 and still kicking without any issues and no jackshaft. it's most likely because with the 2 stage pump it doesn't really load the belt too much once that 2nd stage drops out under load in it drops to 2.8 GPM. direct drive pumps normally have needle bearings on the drive end and they are not designed for radial thrust. I've just been lucky and also cautious to keep the belt tension at the min. required to prevent slippage. if it goes out on me I'll re design it. Got enough to fix with pivot bushings for now.

I know a lot about a lot of things BUT I still have a lot to learn.
Life is what you make of it. So, why not make a working machine to make it easier.

Recent Topics
What odd jobs did you do today?
by GatorS - 01/22/2021 11:08 PM
Electric mini loader
by bunkclimber - 01/21/2021 06:40 AM
Hydraulic oil type
by sonny - 01/18/2021 11:09 AM
Isuzu generator build
by bunkclimber - 01/16/2021 07:57 PM
Front End Loader
by JIM - 01/16/2021 03:22 PM
Case 310 crawler loader
by sonny - 01/12/2021 11:26 AM
So what did you do this week????
by JIM - 01/10/2021 06:52 PM
building a new toy
by chma - 01/07/2021 06:01 PM
random pix.
by JIM - 01/05/2021 06:43 PM
Articulated Tractor FEL from Scratch
by sonny - 01/04/2021 09:18 PM
ShoutChat Box
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Today's Birthdays
There are no members with birthdays on this day.
Donation Box
Powered by UBB.threads™ PHP Forum Software 7.7.3