Combines 1688 pitman arm

[jedeka]

Yes, some of the bolts you have to hold from the inside, as we just changed ours before fall. Some of the bolt heads fit in a hex recess and will keep the bolt from turning. We layed a piece of 3_4" plywood on the top sieve and with both sieves wide open, you can get a 1_2" breaker bar and socket on the bolt head. Be careful not to bend any sieve fingers. Before removing any shaker bushings from the arms, measure protrusion of the bushing.

 

[chadh]

when you put things back together, make sure the machine is in the center of its stroke. this way the bushings only twist a 1_4 each way. we just did ours last year.