Dumb HD21A question
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=98998
Printed Date: 05 Jul 2025 at 11:43am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Dumb HD21A question
Posted By: Adam Stratton
Subject: Dumb HD21A question
Date Posted: 14 Dec 2014 at 2:39pm
| We recently purchased an HD21A with a serial number in the 11000 range. I bought an operators manual for an earlier machine, thinking it would be close enough, but now its got me all confused. The book shows that the transmission has 2 forward gears, but I cant feel any indication mine will shift anything other than forward and reverse. Should mine have 2 forward gears? I have only had it running once since I got it home, it needs some work on the exhaust and filters/fluids changed among other things, just trying to get a few things figured out. Thanks in advance for help with a silly question. |
Replies:
Posted By: CAL(KS)
Date Posted: 14 Dec 2014 at 9:30pm
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yes it should have 2 forward speeds but i am not familiar with the shifting mechanism or how to place in 1 or 2. i would guess there is a spot for 2nd to the right of 1st? but probably not that simple since you are asking. ------------- Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15 |
Posted By: Adam Stratton
Date Posted: 14 Dec 2014 at 9:59pm
| Cal. Thats exactly what the book for the older dozer shows, but I cant feel anything in my shifter that would indicate it can do anything other than forwards and reverse. The old beast had been sitting for quite a while, so something could be stuck or ?? I havent gotten real rough with it yet, and thought I better check with the experts before I tore something up. |
Posted By: ACcrazy
Date Posted: 16 Dec 2014 at 8:58pm
| Adam, can you post some pictures of that bad boy? |
Posted By: Adam Stratton
Date Posted: 24 Dec 2014 at 9:05am
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Here are a few pictures. The blade is 14', and sitting back in the little seat WAAAAYYY back there sure makes you feel small.  
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Posted By: ACcrazy
Date Posted: 24 Dec 2014 at 9:57am
Nice!  Looks like someone roosted on the blade--rude! 
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