AC 720 Filters?
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=94541
Printed Date: 26 Nov 2024 at 2:33am
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Topic: AC 720 Filters?
Posted By: NC Bruce
Subject: AC 720 Filters?
Date Posted: 31 Aug 2014 at 10:34pm
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After my mechanic worked on the AC 720 for about 8 weeks, we finally got it running and almost lifting an ARK 600 front-end loader, until another dry-rotted hyd. pipe ruptured! Among other things, we had replaced the starter-switch, rebuilt the starter, but couldn't get starter to even try turning. Finally wired in a relay switch to give continuous 12v to starter, and it worked! 1st) Does anyone have the Oil Filter types and numbers for the Onan 19.5hp? ( Car Quest ..... ) 2nd) How about the types / numbers of Hydraulic Oil Filter? (NAPA....)? 3rd) My mechanic said to use 10W-40 multigrade oil in the AC 720 Onan Engine? I was always made to use straight 30 like Rotella T 30W (with zinc additive)? What do you say? 
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Replies:
Posted By: rtxdoug
Date Posted: 01 Sep 2014 at 6:58am
| FROM OWNERS MANUAL: Engine Oil Filter Element AC number 2067272, suppliers should have cross reference. Hydraulic system oil filter 1650954. Engine Oil for above 90 degrees F use SAE 50, above 30 F use SAE 30, below 30 degrees F use 5W30. Nice tractor, I would like one. Doug in Ontario. |
Posted By: Toscani NE SD
Date Posted: 01 Sep 2014 at 7:57pm
| I use only rotella 30wht in my 620 and 720 I use pure one filters on engine and hydro,i don't hav numbers off hand |
Posted By: OPRCzar
Date Posted: 01 Sep 2014 at 8:11pm
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Purolator Numbers Oil filter L20195 Hyd Filter L14670 The Onan manual calls for these grades Below 0 - SAE 5W30 Below 32 - SAE 5W30 or 10W40 Above 32 - SAE 30 Hope this helps
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Posted By: DON G
Date Posted: 03 Sep 2014 at 8:35pm
 Good to see you got it together Bruce.Seems like I saw the loader before. |