Deck lowering hook cam follower lever

[emcnelis Members Find all posts View Profile Close emcnelis]

I have a machine that has broken the cam follower arm for the deck lowering hook on the 2 to 1 twice in a couple weeks. I've overnighted the part so i can change it tomorrow. I've already been told to look at the lever on the d shaft and make sure it is blocking out the link for the cam follower correctly and isn't slipping every so often. I was also told to look for a loose cam on the 2 to 1 itself. I am wondering if anyone has other things to look for that may cause this cam follower to break so i don't break a third one. Thanks in advance.

[mr.badwrench Members Find all posts View Profile Close mr.badwrench]

Make sure the eccentric for the deck lowering hook is not overtightened or lacking in lubrication.

[Roscoe Tech of the Year 2000 Find all posts View Profile Close Roscoe]

If you have the late model cam, 12-100831, pt #15 pg #34, then indeed change the 12-100183 deck hook latch. Pt # 196, pg 14. When if fails on that model cam it allows the bearing to fall into the low of the cam and break off the bearing.
Roscoe

[Mechanick Member Find all posts View Profile Close Mechanick]

Make sure that your deck lowering hook has the roll pin in it on the end of the hook This prevents the hook from jamming into the post of the deck lift shaft if the blocking mecahnism for the lowering hook cam follower slips.

[Steve Stafford (JBEES) Tech of the Year 2005,2007 Find all posts View Profile Close Steve Stafford (JBEES)]

Something you can do to prevent the cam follower from moving too far is to drill a hole in the cam follower itself and insert a roll pin. The roll pin will strike the 2:1 housing and prevent the cam follower from falling in too far and breaking the bearing off...which can lead to a broken cam. Here are a couple of pics to help understand what I am suggesting.

Gearbox003Small-1.jpg

Gearbox002Small.jpg

Gearbox006Small.jpg

[brentman1 Members Find all posts View Profile Close brentman1]

Replaced one one time, and broke it soon as i jogged the machine thru 1st time, big allen in end of deck shaft on r/h end was broke!

[emcnelis Members Find all posts View Profile Close emcnelis]

ok. i got the new cam follower in this morning, changed it out. Now i am having issues with the deck setting an empty rack of pins on second ball. Can this be related to deck lowering mechanisms in the detector? i've messed with the 180 adjustment and if i can get it to wait at 180 on second ball, it wont wait on first ball, and vise versa. Steve, i will definitely be using your idea with the roll pin, that sounds like a good idea to get me through.

[mr.badwrench Members Find all posts View Profile Close mr.badwrench]

Remove the gear box drip pan and see if it makes a difference in your 180 adjustment.

[witty690 Members Find all posts View Profile Close witty690]

I would start by checking the adjustment on the detector rod itself.

[bowlamech Members Find all posts View Profile Close bowlamech]

check the two allan screws on the cycle pear shaped cam on end of 4:1 I had one come loose and sure enuff snapped off the cam.And check rest of machines to see if any working loose will save lotsa headaches...

[Steve Stafford (JBEES) Tech of the Year 2005,2007 Find all posts View Profile Close Steve Stafford (JBEES)]

The clutch cam being loose is a common reason the cam breaks off of the 2:1...so I would look there as mentioned by bowlamech.

[emcnelis Members Find all posts View Profile Close emcnelis]

The 4:1 clutch cam is not loose. I did put the roll pin in the cam follower arm as per your suggestion it looks like that will get me through until i find the cause.

[Steve Stafford (JBEES) Tech of the Year 2005,2007 Find all posts View Profile Close Steve Stafford (JBEES)]

Should never break again...

I would suggest installing it on all of your machines...it is a great preventative item. Just a thought though.

[keeth Members Find all posts View Profile Close keeth]

That thing is just great! Comes in handy for those just in case situations!

[emcnelis Members Find all posts View Profile Close emcnelis]

Steve, i started putting the roll pin in the cam follower arm for all machines and ended up seeing issues come up becuase of it. On first ball standing pins, only when there is one standing pin, the deck lift hook would end up slipping off the deck lift shaft causing the deck to jump violently. However, i did not see the roll pin hanging up in anyway. Have you ever experienced this?