Value of Membership Find a Chapter Join Renew Search

Forum Groups

 

Forums / Shop Talk / procore 660 timing

procore 660 timing

12 posts
  1. Jacob Silva
    Jacob Silva avatar
    0 posts
    10/3/2016 12:10 PM
    Looking for some help timing a procore 660. Neither operators manual or repair manual mention anything about timing. There are also no markings like a 648. Toro and distributor are no help. Have tried using similar setup as our 648 but does not work out. Any help is greatly appreciated.



  2. Larry Allan
    Larry Allan avatar
    0 posts
    10/3/2016 3:10 PM
    I don't believe that the 660 has any timing. It's simply based on tractor speed and RPM. We have attempted to balance it by rotating the arms before putting the belts on, but it still shakes like a bastard. Get your forward speed down to where you want it and go. We use it on greens with 1.5 by 1.5inch spacing and it does a great job as long as it is set to the proper angle. It still feels like it will fly apart at any minute but it hasn't failed us in 20 years.
    2nd gear turtle on a Kubota 4 speed manual works perfectly with any tine we have put in it



  3. Max Lamas
    Max Lamas avatar
    0 posts
    10/3/2016 7:10 PM
    Call your local Toro dealership and speak with the service department. They should be able to tell you if there is a timing procedure.

    This is for the Procore 864:

    "Coring Crankshaft Timing
    On the ProCore 864 aerator, each pair of crankarms
    joined through a bearing housing are assembled with
    the crankarm journals positioned 180o apart. The coupler
    assemblies that connect these pairs of crankarms
    allow for proper phasing of the crankshaft to allow minimal
    operating vibration.
    NOTE: On the ProCore 864, the numbers cast into the
    crankarms will not align with the raised indicator marks
    on the bearing housings."

    https://media.toro.com/servicemanuals/07155sl.pdf



  4. Andy Jorgensen
    Andy Jorgensen avatar
    1 posts
    10/4/2016 5:10 AM
    660 does have timing. And your dealer should be able to tell you how to do it. We got ours out of time after changing a belt once, tore that green to many pieces.....



  5. Karl Harris
    Karl Harris avatar
    0 posts
    10/4/2016 6:10 AM
    There is no timing procedure for the 660 or 880. What exactly is yours doing to believe it is out of time? I know our 880 only gives us any problems if the belt grooves get clogged with dirt or belt tension is not right and then the belts slip causing it to tear turf.



  6. Jacob Silva
    Jacob Silva avatar
    0 posts
    10/4/2016 11:10 AM
    Thinking the timing is off just based off the resulting hole pattern after a pass is made. This machine has shaken itself loose quite a few times. Fixed once by the dealer (who reversed the gear case making the crankshaft turn backwards, that was fun to figure out in the field) and then basically rebuilt again in house. Have tried a few configurations but will give Max's advice a try and keep hounding Toro for an answer. Thank you for the replies.



  7. Max Lamas
    Max Lamas avatar
    0 posts
    10/4/2016 11:10 AM
    Jacob Silva said: Thinking the timing is off just based off the resulting hole pattern after a pass is made. This machine has shaken itself loose quite a few times. Fixed once by the dealer (who reversed the gear case making the crankshaft turn backwards, that was fun to figure out in the field) and then basically rebuilt again in house. Have tried a few configurations but will give Max's advice a try and keep hounding Toro for an answer. Thank you for the replies.


    your Toro dealer rebuilt it backwards? did they do this under warranty? I wouldn't have accepted it back unless it was properly done according to Toro manufacturing specs.



  8. Hennigar Kevin A
    Hennigar Kevin A avatar
    10/4/2016 12:10 PM
    Each crankshaft is timed to each other as in when one are is up the other is all the way down. this is fixed unless for some reason a key sheared. As for timing all the heads together it is not possible. you could have them all exactly the same and it will change.keep torque checked on crankshaft assemblies as per manual. having belts properly tensioned at all tines make sure scrapers are engaged to clear out pulley grooves. i am always checking the roto link assemblies after each use to make sure they haven't gone soft or flopping around to much. i recall having to replace one and the new one stood out from the 7 others for hole quality that we ended up replacing them all.

    if the gearbox was assembled backwards all that needs to be done is just to flip gear box over just swap vent with drain plug. generic gearbox can be mounted both ways. belts have to be pulled from over the top of crankshaft towards gearbox driveshaft. looking from LH side of the machine clockwise. and looking from RH side Counter clockwise.



  9. Andy Jorgensen
    Andy Jorgensen avatar
    1 posts
    10/5/2016 8:10 AM
    Karl Harris said: There is no timing procedure for the 660 or 880. What exactly is yours doing to believe it is out of time? I know our 880 only gives us any problems if the belt grooves get clogged with dirt or belt tension is not right and then the belts slip causing it to tear turf.



    Runs good for a few feet, then vibrates the heck out of you, then fine, then vibrates, then repeat until you've torn the whole green up. When ours was doing this, we got the mechanic from next door to look at it since he had more experience with this machine than us at the time. He put it back into "time" and it worked just fine. Not exactly sure what he did to fix it.



  10. Larry Allan
    Larry Allan avatar
    0 posts
    10/5/2016 9:10 AM
    Andy Jorgensen said:
    Karl Harris said: There is no timing procedure for the 660 or 880. What exactly is yours doing to believe it is out of time? I know our 880 only gives us any problems if the belt grooves get clogged with dirt or belt tension is not right and then the belts slip causing it to tear turf.



    Runs good for a few feet, then vibrates the heck out of you, then fine, then vibrates, then repeat until you've torn the whole green up. When ours was doing this, we got the mechanic from next door to look at it since he had more experience with this machine than us at the time. He put it back into "time" and it worked just fine. Not exactly sure what he did to fix it.

    Andy, ours has the same cycle of shake smooth shake, but I have never seen it rip up anything. I would advise people not to use the longer 1/2 inch quad tines as we did have a bit of tearing setting it down and picking it up. It doesn't happen with the shorter tines.
    As for timing, My mechanic doesn't think there any adjustment. It all comes down to forward speed and rpm



  11. Jacob Silva
    Jacob Silva avatar
    0 posts
    10/5/2016 11:10 AM
    Toro did credit the initial repair and then gave all necessary parts for us to fix their mistake in-house. Thanks again everyone.



  12. Wade Borthwick
    Wade Borthwick avatar
    0 posts
    10/31/2016 12:10 PM
    Check the keyways at the transmission. We had a set roll on us. Had to remove both shafts and take in to have new ends made and welded on, replaced keys. Also check drag link bearings will not cause tearing like above but will make the unit very noisy. I give each drag link a kick and can hear the loose ones.



View or change your forums profile here.