Poulan Screws PP175g42

[geogeranis]

Transaxle mounting screws (2) keep coming loose. These have already been replaced once and now the head has broken off one of them.

The part # 817 00 05-12, pc.#125, Screw 5/16-18 x 3/4. Is this a special material like grade 8? Where would I find these "special " bolts and how do I secure them?

Is there a torque requirement?

The repair manual does not call for a locking device. In the past I have replaced a broken link transfer rod pc.202 because of this problem. This is Not a new machine.

ANY help would be greatly appreciated...Thanks.

george

 

[Scrubcadet10]

PartsTree - Home of OEM Parts for Outdoor Power Equipment

Parts lookup and repair parts diagrams for outdoor equipment like Toro mowers, Cub Cadet tractors, Husqvarna chainsaws, Echo trimmers, Briggs engines, etc.

www.partstree.com

They appear to be a thread forming (self tapping) screw.
I'd try some blue Loctite and see what happens.

 

[geogeranis]

PartsTree - Home of OEM Parts for Outdoor Power Equipment

Parts lookup and repair parts diagrams for outdoor equipment like Toro mowers, Cub Cadet tractors, Husqvarna chainsaws, Echo trimmers, Briggs engines, etc.

www.partstree.com

They appear to be a thread forming (self tapping) screw.
I'd try some blue Loctite and see what happens.

Blue not Red Loctite? Also, since the threads have already been "tapped" will another self-tapping screw work again as compared to a say, a 8 bolt?

Thanks,

George

 

[StarTech]

Yes it is a self tapping screw. Yes only Blue Loctite as Red is permanent especially in aluminum. IF hole is worn out then you need to resize for a standard next size screw or Helicoil it and use a standard 5/18-18 x 3/4 grade 5 or grade 8 screw.

IF going to next size then use a M9 or M10 screw depending how bad the hole is worn.