D21 hydraulic level check
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=188130
Printed Date: 18 Dec 2025 at 2:30pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D21 hydraulic level check
Posted By: TerraTiger
Subject: D21 hydraulic level check
Date Posted: 08 May 2022 at 7:13am
| Where is the plug to check rear end/hydraulic fluid level. I found the fill area at the platform. Think I may also need to bleed suction line to pump, no power steering or 3pt functions and power divertor light is on. What is best way to bleed line short of taking it loose at the pump and letting oil drain there? Thanks for the help! |
Replies:
Posted By: WLHD21
Date Posted: 08 May 2022 at 10:17am
| Dip stick under left side of seat , 3” plug in platform with spring clips Holding it down |
Posted By: SteveM C/IL
Date Posted: 08 May 2022 at 11:10am
| On my 220 there's a cap plug on top of pump you can remove and squirt oil into pump to prime it. Likely slight air leak at inlet on bottom letting it loose prime. |
Posted By: TerraTiger
Date Posted: 08 May 2022 at 8:40pm
| Thanks for the help! Got it figured out now. |
Posted By: MACK
Date Posted: 08 May 2022 at 8:59pm
| Front pump seal needs replaced and tighten clamps on suction line. May also be time to clean screen on suction line in rear end. MACK |
Posted By: SteveM C/IL
Date Posted: 08 May 2022 at 9:53pm
What did you do/find?
|
TerraTiger wrote:Posted By: TerraTiger
Date Posted: 09 May 2022 at 6:54am
| Checked the level, none on dipstick. Need to pick up some fluid and go from there. Might be time to just change the fluid while I'm at it. How many gallons will I need? |
Posted By: SteveM C/IL
Date Posted: 09 May 2022 at 8:54am
| Good time to change and pull strainer out of front suction hole. My 220 took better part of 30gal drum. |