23 Reo 229 #1 Posted July 18 What is the friction disk torque spec on a 520H PTO? Share this post Link to post Share on other sites
lynnmor 7,322 #2 Posted July 19 12 hours ago, 23 Reo said: What is the friction disk torque spec on a 520H PTO? I don't know if that has been published anywhere. Just use a torque chart like this one. 1 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,074 #3 Posted July 19 I can not find a torque value anywhere. The 1978-79 service manual The 1986 Section 18 or the manuals for the pto when it was an option up to 1972. Whizlock bolt 1/4-20 x 1/2" Wrong I think a Whizlock bolt may be one that came with a thread locker applied to the threads. A whizlock bolt or nut is one that has a serrated washer below the hex and part of it. 1 Share this post Link to post Share on other sites
pfrederi 17,747 #4 Posted July 19 (edited) 1 hour ago, gwest_ca said: I can not find a torque value anywhere. The 1978-79 service manual The 1986 Section 18 or the manuals for the pto when it was an option up to 1972. Whizlock bolt 1/4-20 x 1/2" Wrong I think a Whizlock bolt may be one that came with a thread locker applied to the threads. A whizlock bolt or nut is one that has a serrated washer below the hex and part of it. I think the bolt with attached lock washer below the head is a Sems fastner Esloc I think is the bolt with the sticky stuff Edited July 19 by pfrederi 1 Share this post Link to post Share on other sites
Blasterdad 2,692 #5 Posted July 19 20 hours ago, 23 Reo said: What is the friction disk torque spec on a 520H PTO? https://www.almabolt.com/pages/catalog/bolts/tighteningtorque.htm 1/4 x 20 x .250 ( 1/4 in ) is 8 ft.lbs according to the chart in the link. ( grade 5 ) I don't think a 1/2 in would be that much different. 1 Share this post Link to post Share on other sites