1. Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
  2. ALL NEW MEMBERS READ THIS FIRST!! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum. This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!!

Wacker Exciter Oil Change?

Discussion in 'Other Compact Equipment' started by Parts, Dec 10, 2021.

  1. Parts

    Parts Well-Known Member

    Joined:
    Dec 6, 2016
    Messages:
    160
    Location:
    DMV Area
    Got a Wacker RT82 in and need to do an oil change on gear case and exciters along with other maintenance. According to the manual 2 of the drums are removed to replace the gear case oil (with new 10W-30) and 2 of the drums are removed to replace the exciter oil. Anything in particular regarding exciter oil change as the manual is saying you need special tools...doesn't look too special to me but thought I would ask. Also does the exciter take 10W-30 as well? Thanks!
     
  2. Parts

    Parts Well-Known Member

    Joined:
    Dec 6, 2016
    Messages:
    160
    Location:
    DMV Area
    Ok not sure if this help job anyones memory but the manual specifies a Mobil grease for the exciters. Do I scrape them clean and regrease?
     
  3. MarshallPowerGen

    MarshallPowerGen Senior Member

    Joined:
    Nov 26, 2017
    Messages:
    332
    Occupation:
    Generator & Equipment Mechanic
    Location:
    Eugene, OR
    Where are you seeing info on replacing exciter/gear oil? IIRC everything is hydraulic fluid from the manifold to the drive motors and exciter, and the pivots and motor splines take grease.

    Oh, make sure to loosen but keep the big drum nut on when pulling the cover. It will take a lot of force with a puller to remove the cover and it will let go with a BANG!
     
    Parts likes this.
  4. Parts

    Parts Well-Known Member

    Joined:
    Dec 6, 2016
    Messages:
    160
    Location:
    DMV Area
    I thought the manual said grease in the exciters but I will have to check again and repost when I do. So you are saying the exciters should be lubricated in hydraulic fluid? What would I be lubricating behind the drums and covers then?
     
  5. MarshallPowerGen

    MarshallPowerGen Senior Member

    Joined:
    Nov 26, 2017
    Messages:
    332
    Occupation:
    Generator & Equipment Mechanic
    Location:
    Eugene, OR
    Going off of memory; but the whole system is contolled from the hydraulic manifold and it's all just hydraulic motors. Only oil in the drums was when I had to replace a leaking hose. The internals of the drums were dry IIRC. Hydraulic motors and greased bearings is all I've seen, but you might have an older unit than I've worked on.
     
  6. Parts

    Parts Well-Known Member

    Joined:
    Dec 6, 2016
    Messages:
    160
    Location:
    DMV Area
    That sounds right going off what I remember reading in manual. So do the greased bearings get repacked or leave them alone? Thats the portion I am trying to figure out.
     
  7. MarshallPowerGen

    MarshallPowerGen Senior Member

    Joined:
    Nov 26, 2017
    Messages:
    332
    Occupation:
    Generator & Equipment Mechanic
    Location:
    Eugene, OR
    I never did, but if they are open or have a seal you can pop out with a pick, I'd check and grease them. Not like they turn at any sort of speed; it would be more of an age thing.
     
  8. Parts

    Parts Well-Known Member

    Joined:
    Dec 6, 2016
    Messages:
    160
    Location:
    DMV Area
    Thanks. So everything spinning at crazy speed to make vibration is hydraulic fluid lubed and the greased bearings are slow speed?
     
  9. MarshallPowerGen

    MarshallPowerGen Senior Member

    Joined:
    Nov 26, 2017
    Messages:
    332
    Occupation:
    Generator & Equipment Mechanic
    Location:
    Eugene, OR
    Sorry, I was thinking more of the "wheel bearings" in the drums when I typed that last night.
    Damn, now you got me thinking and I just looked up a parts manual. Realized I've torn in as far as replacing a sheared off exciter motor, but never dug inside of the actual exciter in one of those. Definitely greased bearings, but I don't think anything in those is splash lubed or submerged. I could be off though...

    Are you looking to just go in and redo all the fluids on this thing?
     
  10. Parts

    Parts Well-Known Member

    Joined:
    Dec 6, 2016
    Messages:
    160
    Location:
    DMV Area
    Yeah just don't want the bearings to let go...so looking to get fresh lubrication in there. When it warms up I may have to pull a drum and take a look.