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Pump reservoir removal.

Discussion in 'Fisher Engineering Discussion' started by Seaway25, Nov 23, 2009.

  1. Seaway25

    Seaway25 Senior Member
    Messages: 165

    I took out the four screws I saw on the bottom of the reservoir, but I can't get it off. I pulled on it and tapped it with a rubber mallet but it didn't budge. I want to replace the filter. Am I missing something?
     
  2. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Nope, keep working on it with the rubber mallet. Theres a O-ring in there that gets a pretty good seal after a while.
     
  3. Seaway25

    Seaway25 Senior Member
    Messages: 165

    I still haven't had any luck. Is it a bad idea to use a small pry bar at the top of the reservoir? It looks like it would bend it, but I'm running out of ideas. I have hit it so many times with a mallet it's starting to get dented up.
     
  4. mcwlandscaping

    mcwlandscaping 2000 Club Member
    Messages: 2,557

    Use a flat head screwdriver and work your way around it, it will come off!
     
  5. searay220

    searay220 Member
    Messages: 99

    I have to do the same thing this week or next. Where do get the filter for the pump? Do you need to replace the oring after the resivior comes off?
    :salute:
     
  6. Seaway25

    Seaway25 Senior Member
    Messages: 165

    I got the filter as a kit at the local fisher dealer. It comes with a new o ring.
     
  7. Seaway25

    Seaway25 Senior Member
    Messages: 165

    I finally got the reservoir off. It took quite a lot of prying. I bought this plow used and was curious what it would look like inside. They said the oil had been changed regularly but everyone says that. I was pleasantly surprised to find it nice and clean inside. There was a little debris, but nothing much. The filter looked fine but it was the old style so I put on a new one.
    Putting the reservoir back on was just as much of a pain as taking it off. I hit is so many times with a mallet trying to get it on that I caved in the bottom. I pounded it out a little but I was afraid to do too much. I didn't want to end up with a crack or mess up the drain plug. Either way it's back together and works perfect.
     
  8. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    Did you put the new style breather in?
     
  9. searay220

    searay220 Member
    Messages: 99

    Seaway25 did you just change the fluid in the reservoir or drained out the hoses and pistons?
     
  10. mikelawtown

    mikelawtown Senior Member
    from Mass
    Messages: 429

    I went to look at the led's at donovan spring in NH and since they had a fluid change and flush for 59 bucks i had it done, everything else looked good after i had the new breather replaced. didnt know the old one was bad..
     
  11. Seaway25

    Seaway25 Senior Member
    Messages: 165

    It had fresh fluid put in it when I bough it, but I'm not sure what the brand was. It was something I didn't recognize. Wolf maybe? It was blue. Anyway, I drained the hoses, rams, and pump. Filled it with Fisher fluid, ran the pump, and then drained it all again. I wanted to use Fisher fluid so I flushed it out well.
     
  12. Seaway25

    Seaway25 Senior Member
    Messages: 165

    No I only changed the pick up tube and filter. The breather is the L shaped piece that comes out and up from the side of the manifold right? I didn't realize there was a new one. Can I do that without draining the fluid? Is it worth it?
     
  13. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    The breather screws in the top of the elbow you are talking about. The new one is a gray plastic piece. Take yours off and bring it to the dealer to be sure. You don't have to drain the system. It lets air in and out of the system as the fluid level change when you use the lift ram. The new breather basically allow the pressure in the reservior to hbuild up more. This reduces the amount of air - with moisture in it - coming in and out, reducing the chance of a freeze up.
     
  14. Seaway25

    Seaway25 Senior Member
    Messages: 165

    Thanks. I'll check that out tomorrow. My dealer is a half hour away, but I have to go that way tomorrow anyway. Is the piece you're talking about part number 21727-2 Breather 3/8 NPT, or 21726 90 degree Street El 3/8 NPT? In the CPW catalog they are $21.36 and $5.29 respectively.
     
    Last edited: Dec 1, 2009
  15. cubicinches

    cubicinches PlowSite.com Addict
    Messages: 1,412

    New style breather is part # 21727-2. :)
     
  16. Seaway25

    Seaway25 Senior Member
    Messages: 165

    Thanks. I knew it would be the more expensive one ;)
     
  17. cubicinches

    cubicinches PlowSite.com Addict
    Messages: 1,412

    I was going to say that as well... they're pretty proud of them, for what they are anyway.
     
  18. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    Ouch! I think I paid 10 bucks or so when I bought one three years ago....
     
  19. cubicinches

    cubicinches PlowSite.com Addict
    Messages: 1,412

    $21.00 or so around here... :eek:
     
  20. searay220

    searay220 Member
    Messages: 99

    Mikelawtown: Donovan did the service for $59 ? I was going to do mine this week.I bought everything I need and then I took one look at the 4 rusted bolts and realized $59 is a good deal. Heading up there in the am.