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840 wheel loader |
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53 ca ![]() Bronze Level ![]() Joined: 17 Sep 2018 Location: SEMO Points: 14 |
![]() ![]() ![]() ![]() ![]() Posted: 23 May 2021 at 3:53pm |
have a 840 b wheel loader that we changed motor and hydraulic pump on. Also changed transmission fluid. Now it will not pull itself up any grade until it gets warmed up. say about 10 to 15 mins of run time. what fluid should I have used in it ? THANKS for any info. Jerry |
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orangeman ![]() Orange Level ![]() Joined: 12 Sep 2009 Points: 1825 |
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Jerry: the information on the hydraulic fluid should be covered in the 840 Articulated Loader Operators Manual Form SV-112B - Part No 1012879-1. Unfortunately, I don't have that in doc. in my periodical library.
If the fluid is not the problem, it might be good to start with a clutch pressure check or could be also worn splines on the Torque Converter Pump drive, flex drive plate failure or low clutch pressure which would occur as a result of a weak regulator valve spring or regulator spool sticking. The later could be remedied through removal and cleaning possibly. The Service Manual for the AC 840 wheel loader is form No. ISM-17 and part number 1013042-5. Orangeman
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steve(ill) ![]() Orange Level Access ![]() ![]() Joined: 11 Sep 2009 Location: illinois Points: 85934 |
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are you sure the level is correct ??? ....
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Like them all, but love the "B"s.
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53 ca ![]() Bronze Level ![]() Joined: 17 Sep 2018 Location: SEMO Points: 14 |
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pretty sure it is good. Just for the info how do you check the fluid level? I was told to use Dextron ATF . Right or wrong?? I will check fluid when I get by the loader this week. Thanks, Jerry
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steve(ill) ![]() Orange Level Access ![]() ![]() Joined: 11 Sep 2009 Location: illinois Points: 85934 |
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reply #25 says there should be TWO marks... running, and motor off ??
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Like them all, but love the "B"s.
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53 ca ![]() Bronze Level ![]() Joined: 17 Sep 2018 Location: SEMO Points: 14 |
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Thanks for the info, When I get back to the loader I will do some more checks and see where things are. Where can I get a service manual for it? Thanks again |
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steve(ill) ![]() Orange Level Access ![]() ![]() Joined: 11 Sep 2009 Location: illinois Points: 85934 |
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e-bay.............. not cheap
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Like them all, but love the "B"s.
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Ian Beale ![]() Orange Level ![]() Joined: 03 Oct 2011 Location: New South Wales Points: 992 |
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Not expensive compared to what might happen without though
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