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69gmcor70chevy 
Bronze Level
Joined: 04 Oct 2012
Location: Sask
Points: 17
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 Topic: HD16a Hydraulic/Steering Question
Posted: 09 Sep 2016 at 10:08am |
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we have an old HD16a (lol they are all old..) anyway when we bought it I talked to the owner who had it before the guy we got it from. He told me about a screen/filter under the seat (access from bottom) that you need to clean for the hydraulics for the brakes. Some times when I push the brake peddle to steer its like pushing a car brake peddle, just like butter, but other times it is like the flinstones and I feel like I have to push through the floor board and it really doesn't work., Ive checked the fluid in both hydraulic reservoirs and we replaced one of the pumps.
Does anyone have a pic of this elusive screen? I've looked numerous times to no avail...
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CAL(KS)
Orange Level
Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3735
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Posted: 09 Sep 2016 at 12:39pm |
i have a 16A. there is no screen unless someone added it. in fact there is no filter of any kind on the early tractors, later ones had a filter on each pressure line coming off the pump. there is only 1 reservoir and its in the engine compartment. mine is 4715 a '58, one of the last ones before the change to hyd wet brakes.
you can look at the parts book here for 16A. A is 6 speed manual trans. some later ones had a pump on trans for oil pressure but that doesnt affect brakes. perhaps you have a later model?
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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
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69gmcor70chevy
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Joined: 04 Oct 2012
Location: Sask
Points: 17
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Posted: 09 Sep 2016 at 1:21pm |
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I think it's a 61? There is a reservoir in front of the grill guard at he bottom of our tooong with a hydraulic pump behind the guard
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CAL(KS)
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Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3735
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Posted: 09 Sep 2016 at 1:23pm |
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that pump that drives of crank with reservoir in grill is for blade control
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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
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gemdozer
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Joined: 17 Sep 2009
Points: 942
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Posted: 09 Sep 2016 at 8:16pm |
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The screen side bottom transmission is for power shift transmission
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69gmcor70chevy
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Joined: 04 Oct 2012
Location: Sask
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Posted: 10 Sep 2016 at 12:16am |
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Well, he told me there was a screen and when he cleaned it the dozer braked/turned that much better. I was really hoping it was true !! Lol
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jerbob
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Joined: 07 Aug 2017
Location: Michigan
Points: 961
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Posted: 21 Aug 2017 at 2:36pm |
 69gmcor70chevy wrote:
Well, he told me there was a screen and when he cleaned it the dozer braked/turned that much better. I was really hoping it was true !! Lol
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I know this post is old however I have just taken possession of a 61 HD16DA. Hydraulic blade. My steering with just the hand levels and moving without a load like moving from one place to the other in the field, is almost non existent. I have to use the brake pedal with the steering lever to make any adjustments while moving. I have not tried with a load yet as I just got the dozer this past Saturday delivered and am adjusting tracks and fluid levels and grease first. Did you ever find out any more on your steering clutches?
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