R.h. Blocking finger & probe

[Knowledge_is_key]

What causes the probe and r.h. Blocking finger to push against each other thus making it hard for the finger to pop back up?
The lever is adjusted on the shaft. Spring is on finger and the pin is intact.

[Kanga (James)]

This can happen with the original (weak) blocking finger tension spring. The conversion requires a new lever (12-150271) and stronger spring (12-150272).

[wepauls]

What causes the probe and r.h. Blocking finger to push against each other thus making it hard for the finger to pop back up?
The lever is adjusted on the shaft. Spring is on finger and the pin is intact.

Someone left tools on top of cat walk and fell into CC intern fell onto upper turret pulley
[ got jammed under R H finger and bent it ] to the left

[drhookmec]

2 things you can check
Is the back of the 5 pin chute tight?
If the bolts in the back of the 5-pin chute are missing or loose
this can cause the blocking finger to raise up the entire 5-pin chute instead of the finger lifting off the probe.

Are the probe mounting links on the 5-pin chute bent?
The probes blocking surface should be perfectly horizontal in relationship to the blocking fingers.
If it's not this can cause issues with the blocking fingers not releasing the pins.

[Kanga (James)]

I think I misunderstood the question. My bad.

[Popeye]

When lubricating my turrets I always put a thin film of oil on the blocking surface of the RH blocking finger. Warning: NEVER PUT OIL ON THE LH BLOCKING FINGER!

[Steve Stafford (JBEES)]

Someone left tools on top of cat walk and fell into CC intern fell onto upper turret pulley
[ got jammed under R H finger and bent it ] to the left

And you know this because???

[Steve Stafford (JBEES)]

What causes the probe and r.h. Blocking finger to push against each other thus making it hard for the finger to pop back up?
The lever is adjusted on the shaft. Spring is on finger and the pin is intact.

There are a variety of things that can cause this.

The items listed above by the other posters are great places to start. I would check them just to be sure all is good. Alignment of the interlock probe to the blocking finger is very important. Also be sure the face of the blocking finger has not worn. If it has, this could cause issues. But the face of the blocking finger should not be flat...straight up and down...as that would mean that someone filed/ground the face flat and that will cause the issue you are describing.

If all of the above is good...let's move on to something else.

You stated that the "lever" is adjusted on the shaft. I will ass/u/me you are talking about the hub lever on the far LH side of the front interlock cross shaft. You no doubt followed the adjustment that is in the book. The book adjustment might not be what you should be doing though. The goal is to get as much pressure on the spring as possible without causing any issues with either the LH blocking finger or the hub on the moving deck cam follower. First step...look at the ends of the spring and be sure the spring is actually on the spring wheels and not on the roll pins that support the spring wheels. This can cause the spring to be almost a 1/4" short on tension. This can effect how well it can raise the blocking finger. Next...set the gear box to 270 degrees while setting new pins...but leave the pins out of the moving deck. (Remove them if need be if you didn't set "no" pins) Loosen the hub lever. Remove the moving deck cable from the pulley at the top of the deck post. This will allow you to pull the moving deck cam follower forward. You want to pull it far enough forward so the hub and the hub lever will meet...at the point of the hub lever. You need to put the point of the hub lever just below the center line of the hub. Tighten the hub lever. Now pull the moving deck cam follower forward enough that the hub lever will move. Be sure that the point does not bind against the hub...if this happens during the cycle of the gear box, you could possibly break the LH side of the turret off. If it moves as it should, you will be fine. At this point, you have applied all of the pressure you can to the spring and not effect the hub. Next you need to be sure it will not effect the LH blocking finger. Cycle gear box so it is at 90 degrees with the deck lowered (Either a strike detection or standing pins...makes no difference at this point). Shut off (LOTO) and then using a flashlight, look at the front edge of the collar that stretches the spring to raise the right hand blocking finger. Here is a picture of what we are looking for.



In this picture, you can see the bolt that is used to hold the restricted drop link to the LH blocking finger. Your goal is to be sure that there is a small (1/16" or so) gap between the collar and the head of the bolt. If there is any gap...any gap at all...you are done. Do not try to make the gap any smaller.

If the hub lever we adjusted a bit earlier is too far back, the collar and the head of the bolt will touch. If they touch...the collar will lift the LH blocking finger which can cause pins to drop from the turret while the deck is down. The amount the finger is lifted will be small...but it will be enough to cause issues. You will never see it move because the head of the bolt actually falls onto the collars front edge...and that edge prevents it from going all the way down. Anyway...if they are touching...go back to setting new pins and loosen the hub lever and rotate CCW (move tip toward the front of the pinsetter) just a touch. Tighten hub lever and re-check collar to the head of the bolt at 90 degrees 1st ball. If there still is no clearance, repeat the adjustment until there is a small gap. Be sure that when you adjust the hub lever...you never turn it CW (tip toward the rear of the pinsetter) as this can cause damage to the turret as described above.

When finished, you will have put as much tension on the spring as possible without harming anything or causing another "adjustment" from changing.

Be sure you keep the hub in good shape...if it has a groove, turn it in the cam follower before doing all of the above. Apply a slight film of grease to keep wear from occurring...do this once per month.

[Knowledge_is_key]

Ok today went all day without the probe pushing against the r.h. finger. Solved it by just changing the probe.

[wepauls]

And you know this because???

ONLY ONCE

BEN THAR DUN THAT