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  1. #1
    Join Date
    Feb 2011
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    colorado mountians
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    Carrier econo gears

    Has anyone run across carrier economizer gears cracking at drive hubs? i'm looking for a fix. i dropped actuator to second gear and reversed rotation,but of coarse it cracked. local carrierdealer said no replacement parts available so instead of a $5 gear i have to replace a $2500 econo. i have 19 units on this roof 6 need gears. lubed all bushings and freed up blades i dont look forward to dropping this big dollar repair on the customer. any advise whould be appreciated

  2. #2
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    Apr 2007
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    Pa
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    they are plastic, correct? You could try to weld it, I never did but I have welded up PE towers and PVC pipe. Or you could look for a local shop that makes plastic parts or a cnc shop for plastic work. Hell you could look for a plastic sheet that is the same material/thickness and use one of the gears and make a template. Take a dremel and do it yourself

  3. #3
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    Feb 2011
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    its like pullin teeth to get anything up here in the mountians. the gears are plastic, dont think making them is a viable option. the way they attach to act. and blade is definately a blown plastic design. still cant believe micro metl / carrier doen,t have parts for these things. next time i'm at this place i'll see if i can Macgyver some thing

  4. #4
    Join Date
    Jan 2008
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    East of big city prices.
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    A model number would be nice.

  5. #5
    Join Date
    Jul 2009
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    In a mechanical room....
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    Quote Originally Posted by MUNC View Post
    Has anyone run across carrier economizer gears cracking at drive hubs? i'm looking for a fix. i dropped actuator to second gear and reversed rotation,but of coarse it cracked. local carrierdealer said no replacement parts available so instead of a $5 gear i have to replace a $2500 econo. i have 19 units on this roof 6 need gears. lubed all bushings and freed up blades i dont look forward to dropping this big dollar repair on the customer. any advise would be appreciated
    A-Have a shop cast it in loss wax and make a sand casting -inexpensive mold
    B-Have a injection mold made -expensive mold
    C-Have a CNC programmer make you a program to CNC the part into I would suggest 6061T6 aluminum. I was a cnc programmer. use to make all kinds of stuff on my off hours for guys.- on the cheap
    D-Find one on ebay or something or rig something up maybe your gear will cross over to another make model...
    E-Have the gear repaired by a shop preferably as stated previously by a plastics shop.
    F-Change manufacturer design. I have been known to use a Chane and sprocket in old equipment.
    “It takes courage to grow up and turn out to be who you really are.”

    - E.E. Cummings

  6. #6
    Join Date
    Feb 2011
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    these are 48HGDT14AB-60KD5 UNITS. thanks chrisvacman, unfortunatly it would prob. be in denver to find such a shop (200 miles one way) to find said type of shop i havnt let my fingers do the walkin yet, i'll look around

  7. #7
    Join Date
    Jul 2006
    Location
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    There is a fix for that style of econo with the plastic gears.

    Is the actuator mounted to the side of the damper assembly with a small shaft that fits into the square hub on the plastic gear ? And the square hub is what cracks right? not the whole gear?

    if so
    The fix is drilling a hole through the center of the gear, slide the new longer shaft through the gear, use a bracket to attach the new shaft to the damper blade, and reinstall the actuator and tighten it to the new shaft.

    I installed this on a smaller carrier, but I heard of guys at our shop using this fix on the same size unit you're talking about.

    Our shop had the parts made by a machine shop, but I thought that carrier has these parts as well..

  8. #8
    Join Date
    Feb 2011
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    colorado mountians
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    thanks y7turbo, i was thinkin of trying some thing like that. all carrier out here is willing to do is sell the whole frickin econo package. btw spent 38 yrs in chic. 13 @ local 597. hope you guys are staying busy

  9. #9
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    Jan 2008
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    Quote Originally Posted by MUNC View Post
    thanks y7turbo, i was thinkin of trying some thing like that. all carrier out here is willing to do is sell the whole frickin econo package. btw spent 38 yrs in chic. 13 @ local 597. hope you guys are staying busy
    Is the gear broken or just stripped out? You can also just use a piece of 3/8" all thread , roll pins , and some 3/8" coupling nuts. That`s as long as the gear is not broken.

    Bad thing about these gears is that Ruskin I think JCI owned them, used to make lots of economizers then I think JCI became a Carrier competitor when they bought York. And it`s kinda hard to get some injection molding company to retool up reproduce cheap gears that there isn`t much demand for.

  10. #10
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    Feb 2011
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    thanks guys, the hubs on these gears are broken, not the cogs themselves. this unit actually "slugged" a scroll and stressed the spot welds on the side of the can to the point of loosing charge, leakin like a beech. newer units too

  11. #11
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    Jan 2008
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    Quote Originally Posted by MUNC View Post
    thanks guys, the hubs on these gears are broken, not the cogs themselves. this unit actually "slugged" a scroll and stressed the spot welds on the side of the can to the point of loosing charge, leakin like a beech. newer units too
    Comfortlink controls? How old are these unit's?

  12. #12
    Join Date
    Dec 2005
    Location
    Vancouver BC
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    It's a horrible design, as soon as the econo gets some dust in it the gears bind against the sheet metal and the actuator dies or the gear hubs strip out. I have made the repair by replacing the gears which, while not a fun job is possible and cheaper than a new econo. Carrier never seems to have a handle on MicroMetl products. Maybe because micrometl changes their design as often as Carrier does. Moving forward, silicone at the inspection keeps the gears from binding.
    ___________________________________________
    These Are The Good Old Days

  13. #13
    Join Date
    Apr 2010
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    Ontario
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    Finally. I have a good answer. Good and cheap. I had the same thing happen to me. The white plastic gear splits at the square hub in the middle. I placed a gear clamp (hose clamp) on the hub. It pulls the cracked part back together thereby keeping it from spreading apart again.
    ENJOY THE RIDE

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