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Grease for Mower Deck Spindles? #5089334 04/28/19 11:29 AM
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Astro_Guy Online Content OP
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What are the rest of you using to grease your mower deck spindles? The manual for my JD D140 simply states "NLGI #2," but that still leaves a lot of options. I can't recall what I used for the first four seasons, but it was blue. I've started off this season with Lucas Rend and Tacky. Some of the other forums suggest a lithium grease, others don't. At least one forum mentioned that the bearings were sealed and that it really didn't matter. Why would the manual say to grease the spindles ever 25 hours if it didn't matter?

Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5089345 04/28/19 11:37 AM
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Valvoline Crimson

Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5089358 04/28/19 11:43 AM
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Originally Posted by Astro_Guy
............ At least one forum mentioned that the bearings were sealed and that it really didn't matter. Why would the manual say to grease the spindles ever 25 hours if it didn't matter?

Because on some mowers, MFG'ers put Zerk fittings on in order to satisfy customer complaints about no places to lube. So they install them, and the only think it fills with grease is the cavity between the sealed cheap bearings. My older Murray Rider was like this.


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Re: Grease for Mower Deck Spindles? [Re: Propflux01] #5089365 04/28/19 11:49 AM
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Originally Posted by Propflux01
Because on some mowers, MFG'ers put Zerk fittings on in order to satisfy customer complaints about no places to lube. So they install them, and the only think it fills with grease is the cavity between the sealed cheap bearings. My older Murray Rider was like this.
I've read that elsewhere as well. Does this mean there is no reason to grease the spindles?

Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5089384 04/28/19 12:10 PM
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I think that any grease that meets the NLGI#2 will give you good service. I get grease from Tractor Supply for mine. Can't remember the brand also used I think Lucas from Walmart in the past. I have a 62" deck. All works good.

Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5089694 04/28/19 05:44 PM
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Dave9 Offline
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My now over 20 year old deck was first greased with whatever generic brand I had at the time, lithium complex NLGI2. Next I had Mobile 1 synthetic red #2 in the grease gun and used that. Next I had Valvoline synthetic #2 w/moly in the gun and used that. I am happy with the results, it still mows.

Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5089808 04/28/19 07:58 PM
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Propflux01 Offline
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Originally Posted by Astro_Guy
Originally Posted by Propflux01
Because on some mowers, MFG'ers put Zerk fittings on in order to satisfy customer complaints about no places to lube. So they install them, and the only think it fills with grease is the cavity between the sealed cheap bearings. My older Murray Rider was like this.
I've read that elsewhere as well. Does this mean there is no reason to grease the spindles?

like I said, depends on the unit.


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Re: Grease for Mower Deck Spindles? [Re: Propflux01] #5090966 04/29/19 07:38 PM
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Originally Posted by Propflux01
like I said, depends on the unit.
Okay - so I will keep greasing the spindles, but I don't feel particularly good about it.

Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5091215 04/30/19 05:00 AM
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dlundblad Offline
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You could always take one apart and see what's going on.


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Re: Grease for Mower Deck Spindles? [Re: dlundblad] #5092631 05/01/19 10:47 AM
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Originally Posted by dlundblad
You could always take one apart and see what's going on.
I think the general rule of "if it ain't broke, don't fix it" applies here. I would be curious to know what the expected life span of these spindle are.

Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5096408 05/05/19 10:55 AM
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I’ve always used Mystik JT6 hi-temp red grease. Never had any issues and you can find it just about everywhere for under $5 a tube.

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Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5097310 05/06/19 10:08 AM
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What I have done in the past is remove the inside seal to the bearing, so when greasing the fitting the bearing actually gets grease, not just the shaft and cavity. The first couple mow's I use a few pumps each after its full, then once a year after. Bearings have lasted longer using this method. Before I upgraded to a commercial mower I was lucky to get one year out of the bearing on my 42" Cub Cadet Home Depot special.


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Re: Grease for Mower Deck Spindles? [Re: 1978elcamino] #5097751 05/06/19 07:15 PM
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Originally Posted by 1978elcamino
What I have done in the past is remove the inside seal to the bearing, so when greasing the fitting the bearing actually gets grease, not just the shaft and cavity. The first couple mow's I use a few pumps each after its full, then once a year after. Bearings have lasted longer using this method. Before I upgraded to a commercial mower I was lucky to get one year out of the bearing on my 42" Cub Cadet Home Depot special.
Thanks for the reply. Presently I have four years and 120 hours on the D140 with no signs of a spindle problem.


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Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5099075 05/08/19 05:13 AM
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Any grease is better than no grease. I changed a belt for my neighbor the other day. I brought my grease gun to grease The spindles, Cub Cadet.

I changed a spindle for them years ago, since they about never greased them.

Re: Grease for Mower Deck Spindles? [Re: Astro_Guy] #5099157 05/08/19 07:39 AM
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I cut 120 yards a week and for 25 years never had a spindle go. One of the many reasons i am a Big fan of TRC Texas Refinery 880 Crown and chassis grease.

Big fan of the Whole line.


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