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nsrwholesale
08-15-2011, 11:31 PM
I am trying to replace the 3 spindles on my 2002 eXmark Lazer Z 52"...


Just one question (Most likely more to come :) lol), do you have to remove the key on/in the pulley before you can take the pulley off, or does the pulley come off, THEN you have to take the "key" out to remove the spindle shaft?

Thanks in advance!!!!

Also any tips on this process would greatly be appreciated!

chesterlawn
08-16-2011, 08:44 PM
No you don't, the pulley will come off with the key in place.

topsites
08-17-2011, 01:29 AM
The question I have is, why the entire spindle, you do know it's a lot cheaper
to replace what's worn (such as the bearings) than the whole spindle, likely
save yourself a $50 per each, granted it will take a few hours longer but we're
talking $150 in parts you can pay yourself by working on it the afternoon.

One other question...
Why all three?

Usually I only do the one that's bad, now if all three are in right similar and rough shape, your call
but the only time I replace the whole spindle (which I never have) would be if the housing had cracked.

Peace out

nsrwholesale
08-17-2011, 11:32 AM
The reason I replaced the whole spindles was because they all were making sounds and did not have a spot where you could pump the grease in. The new ones I got for $60 each have a place where you can pump grease in, which should make them last a lot longer.

I replaced all 3 because they were for the most part all in pretty bad shape and while i had the mower deck off, I might as well have done them all!

BUT, now that the spindle housings are new, if they go bad again, I will just replace the bearings!

When the mower deck is turned on, it sounds and feels 1000% better. I would say job well done!

dutch1
08-17-2011, 11:49 AM
Just because a spindle assembly doesn't have grease zerks doesn't mean they can't have them. While you have the bearings and shaft out, drill and tap for 1/4"x28 zerks. At the same time have a plan that will make them accessible once they are installed. I do this quite often, then install ZerKaps to stay away from corrosion and rust. It's a about a 20 minute job to do three cast aluminum spindles when they are out of the deck.

BigFish
08-17-2011, 01:26 PM
Just because a spindle assembly doesn't have grease zerks doesn't mean they can't have them. While you have the bearings and shaft out, drill and tap for 1/4"x28 zerks. At the same time have a plan that will make them accessible once they are installed. I do this quite often, then install ZerKaps to stay away from corrosion and rust. It's a about a 20 minute job to do three cast aluminum spindles when they are out of the deck.

NOT a good idea!! First, most of the spindle assy's use sealed bearings.
The lube put in em by the brng. mfg. is far superior to most common shop grease! Second, ya gotta pry out the seals from the inside of the bearings to allow the grease to get to the brngs. Ya wanna do that to brand new SEALED bearings? Not to mention the ingress of grit etc. from not getting the spindle housing really clean. Then there's the issue of blowing out the bearing seals, as they're not designed to handle the pressure.
It can be done, but .........................

Kinda reminds me of when I serviced a Bad Boy mower's caster wheels, the wheel hub had zerks installed and SEALED bearings ! For kicks I popped a brng out and sure enough, SEALED!

dutch1
08-17-2011, 02:08 PM
Yea, Fish, I should have mentioned pulling the inner seals. In doing so, I've never experienced any problems. The old Grasshopper cast iron spindle housings were equipped with bearings sealed on one side only. The mower I purchased in 1987 mowed 4 acres of dusty farmstead until 97. I started to get a little noise out of one assembly in 2005 so replaced them all. Wouldn't have happened without grease.

When I worked in a Dane shop, we experienced sealed bearing failure in as few as 300 hours. We started drilling and tapping all new equipment with zerks and the problem went away--and, yes, we did peel the inner seals.

I've said it before on this forum but to me the biggest contributor to bearing failure is power washing units while still hot after finishing up a day or a week of mowing--same for trailering a mower through rain after a job.

Fish, what information do you have that would indicate that the grease used by sealed bearing manufacturers is superior to a good grade of high moly grease?

piston slapper
08-17-2011, 04:00 PM
Dutch...There must be some "Good Stuff" in the factory sealed bearings. How else could they give a 2-3 yr warranty on spindles with no grease fittings?

EASY FISH....Just trying to help...

dutch1
08-17-2011, 05:10 PM
Slapper,

In the nearly 7 years I spent in the shop, I don't recall replacing a bearing under warranty. Upon teardown, most all revealed moisture/water invasion creating rust and grease breakdown.

It's a lot like the Briggs 6.5 hp equipped Toro's that were guaranteed to start for 3 years. We didn't warranty any of those either if they showed up with water, rust or debris in the carb.

I think the "Good Stuff" is referred to as Chinese Shinola.

cgaengineer
08-17-2011, 05:18 PM
Toro spindle bearings are made of wood. Sealed or not they won't last.
Posted via Mobile Device

piston slapper
08-17-2011, 05:26 PM
Now...Dont get me wrong....That SHINOLA is some decent stuff......
But ...Moisture and water are normal working conditions in Fla., and therefore, with no way to grease, much less service the spindle bearings,If they fail during the warranty period, Its a warranty. Back in the day when I worked for an Exmark Dealer, the salesrep told us that the grease was the same stuff that NASA used on a project that was so secret, he was forbidden to tell us about it.......
I dont know what it was...it sure sounded important.....Shinola ? .. Perhaps....

dutch1
08-17-2011, 07:23 PM
As long as it was a govenment sponsored endeavor, we know it had to be good and we surely know the price was right!!! It may indeed be "Good Stuff".

I'm more concerned by the lack of grease than I am by the quality, at least judging from the seals I have pulled when installing a new set of bearings in a greaseable spindle housing.

dutch1
08-17-2011, 07:28 PM
Slapper,

As long as it was a govenment funded endeavor, we know it had to be the "Good Stuff" and we surely know the price was right!!!:clapping:

I'm more concerned by the lack of grease than I am by the quality, at least judging from the seals I have pulled when installing a new set of bearings in a greaseable spindle housing.

piston slapper
08-18-2011, 10:16 AM
Slapper,

As long as it was a govenment funded endeavor, we know it had to be the "Good Stuff" and we surely know the price was right!!!:clapping:

I'm more concerned by the lack of grease than I am by the quality, at least judging from the seals I have pulled when installing a new set of bearings in a greaseable spindle housing.

I'm with you on that point...I've destroyed my share of spindles getting them apart.

There is a fine line between the "Good Stuff" and the "Right Stuff" .....Thats All I Can Tell You For Now........

BigFish
08-19-2011, 06:50 PM
Yea, Fish, I should have mentioned pulling the inner seals. In doing so, I've never experienced any problems. The old Grasshopper cast iron spindle housings were equipped with bearings sealed on one side only. The mower I purchased in 1987 mowed 4 acres of dusty farmstead until 97. I started to get a little noise out of one assembly in 2005 so replaced them all. Wouldn't have happened without grease.

When I worked in a Dane shop, we experienced sealed bearing failure in as few as 300 hours. We started drilling and tapping all new equipment with zerks and the problem went away--and, yes, we did peel the inner seals.

I've said it before on this forum but to me the biggest contributor to bearing failure is power washing units while still hot after finishing up a day or a week of mowing--same for trailering a mower through rain after a job.

Fish, what information do you have that would indicate that the grease used by sealed bearing manufacturers is superior to a good grade of high moly grease?

Many years ago, (like about 1979 or so) when I was wrenchin' on HS packaging equip., they had a recurring problem on a capper, anyways the mfg sent a bunch of suits around to look at the POS, one being a bearing rep., and he went on to explain in great detail ( like I gave a sheet) about how his bearings were the greatest thing since sliced bread, etc., etc.
Hey, common sense should tell ya that the grease they use has to hold up better, given the life expectancy etc. See Slappers post, #8.( hey, did I just agree with P.S.???)
At any rate,you can google the subject and read till yer eyes cross!!