Added Second Power Steering Pump for Winch - Page 2 - Off-Road Forums & Discussion Groups

LEVE · #11 10-13-2009, 12:19 AM

Quote:

set up with a dedicated pump they kick butt.

... if the engine runs....

bandhmo2 · #12 10-13-2009, 01:04 AM

Quote:

Quote:
set up with a dedicated pump they kick butt.
... if the engine runs....

True very true, and I gave that a lot of thought. The problem is how far can you really winch on the battery alone? Most large batterys only have 65 amp hour rating when discharged over one hour. When discharged faster it is less. So assuming 65 amp hours and pulling 400 amps which most do at near full load. Then you only have about 60 feet of pulling on the battery. So now you are out of the mud hole still with a broken engine and a dead battery to boot. So I felt the trade off for the high pull high duty cycle of a hydraulic was worth it. Also by having a winch I can use more or less continuously as apposed to one I have to wait for the battery to recharge, I will be more likely to use the winch and less likely to brake things. I figure that by also bringing a high lift and or come along I can handle a roll over swamping of the engine or other temporary engine problems.

bandhmo2 · #13 10-14-2009, 09:26 PM

I finally got out and did some speed tests. These numbers are for the 4th layer on the drum the first layer is about 2/3 as fast

At engine Idle about 750 RPM. I got a line speed of 55 fpm in high and 9 fpm in low.

At 2200 RPM, 120 fpm in high and 20 fpm in low. These match calculated speed very well.

These numbers are no load speed but the nice thing about a hydraulic is that loaded speed is not significantly slower.

Compared to a Warn 8274 at 73 fpm no load and 6 fpm loaded, I do not think I would want it faster.

spook2 · #14 10-14-2009, 11:58 PM

Quote:

Originally Posted by bandhmo2

True very true, and I gave that a lot of thought. The problem is how far can you really winch on the battery alone?

Although I've got the battery operated version, I'd have to side with you on this one. If you're stuck AND have got a dead engine, well, being stuck is the lessor of the two problems I'd say. If you're stuck with a dead engine and manage to winch yourself out with your battery powered winch, you still aren't going anywhere are you? In either case unless you fix your engine someone is dragging you out so they might as well drag you out of the stuck while they're at it.

I'd say you made the right choice.

Jim_Lou · #15 10-15-2009, 09:38 AM

Nine FPM seems fast to me for the lowest speed available, but that may be because I'm used to my winch with which I do a lot more than get myself unstuck. But you always have the option of putting a snatch block on it.

bandhmo2 · #16 10-15-2009, 05:55 PM

Quote:

Nine FPM seems fast to me for the lowest speed available, but that may be because I'm used to my winch with which I do a lot more than get myself unstuck. But you always have the option of putting a snatch block on it.

Actually it will go slower. By just barely moving the spool valve I can pull much slower even with the engine at 2200 RPM. It is posible to really go slow.

markr1001 · #17 10-15-2009, 06:59 PM

sweet, wanna take some picks of your bracket, and maybe a schematic of your hydralic lines

bandhmo2 · #18 10-16-2009, 10:02 PM

Quote:

Originally Posted by markr1001

sweet, wanna take some picks of your bracket, and maybe a schematic of your hydralic lines

Attached is a rough schematic. I did not label the exact ports used on different things as that depends on what make of valves and layout you use.

I am not sure which bracket you want pictures of. Both were kind of design as you go kind of deals so there are no plans or anything like that. Sadly once in place it is hard to get good pictures as then got mostly hidden by the parts they hold, but if you let me know more of what you would like I will try for some more pictures of that part.

markr1001 · #19 10-22-2009, 08:56 AM

awesome, thanx for the diagram, as for the mounts, im sure i can fab something up... what make is the winch?

bandhmo2 · #20 10-23-2009, 12:32 AM

Wow, here I do a post on this and do not name the winch once

The winch is a 9000lb Milemarker 2 speed, I can't remember the exact term milemarker uses but it is the type that does not use the electric valve attached to the winch. This is the way to go if you modify the pump or go with a bigger pump for more GPM as the attached electric valve is only rated at 3 GPM, the remote electric valve is only rated for about 6 GPM. I would have preferred a 10500 lb version as they are reported to use the same frame and gears as the 12000 lb version and by running higher pressure the motor on them is rated to produce enough toque to make it a 12000 lb (which the motor is rated for). However, the price and location to pick this one up was right and I can get more pull with a block if needed.

Sorry I do not have any mount drawings for the pump. I basically mounted a steel plate to the stock AC mount and then eyeball lined up the pulleys and welded the pump mount to it, kind of a field fit deal. I will write up the power steering pump modes when I get the time, though it is basically just taking the pump apart and drilling and taping 2 holes, and drilling out the ventury in the flow control valve.