620 transmission top cover plate
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=109081
Printed Date: 27 Sep 2024 at 1:17pm
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Topic: 620 transmission top cover plate
Posted By: BrianC
Subject: 620 transmission top cover plate
Date Posted: 16 Jul 2015 at 5:48pm
Is there a trick to remove the transmission top cover plate?
Six bolts and it should just lift off? Mine gets stuck on the seat frame. I have the seat that slides back and forth. I was wiggling and jigging the cover and all I managed to do is scratch the paint.
Do I have to remove the seat assembly. I just wanted to see what was under there.
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Replies:
Posted By: den/southern illinoi
Date Posted: 16 Jul 2015 at 6:11pm
On all of mine (with various seat frames), I'm pretty sure that the seat frame bolts also helped hold down the transmission cover.
Den
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Own 4 wheel 20, 2-5015, 5020 and associated equipment and 2 electric forklifts.
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Posted By: BrianC
Date Posted: 17 Jul 2015 at 10:33am
The seat bolts are not holding down the cover.
There just doesn't seem to be enough room to slip the cover out
of there. The console pedestal sheet metal slopes rearward, the adjustment lever latch for the seat is only about 1/4 clearance to the hump (about 2" high) on the rear part of cover. I think the formed in hump clears the PTO clutch. Tractors are supposed to be easy to work on. Darn little cover gives me trouble.
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Posted By: BrianC
Date Posted: 17 Jul 2015 at 8:29pm
I think my seat is lower than normal, maybe not original.
The 720 Special could be had without the rear PTO, maybe the seat was
lower? With no PTO clutch, the top cover wouldn't need that hump, and seat could have been made lower.
I have looked at a lot of pictures on the web, I see 3 different transmission covers- flat no hump. Humped with stiffener bead up front and rounded corners. Hump, no stiffener bead and front corners notched.
I suspect my machine is mix and match parts.
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Posted By: Orange Blood
Date Posted: 17 Jul 2015 at 8:55pm
There is a trick to it, but it will come off without taking the seat off. I can't tell you how to do it, because the last time I did ours, was over a year ago. It's just a matter of angles and wiggling, it's tight but you will eventually find a sweet spot, and out it comes.
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Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
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