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Old 08-29-2014, 04:31 PM   #1
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2001 national tropical tag axle brake fluid

anyone know where the fluid reservoir for the tag axle is? How to check and fill if needed?
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Old 08-29-2014, 09:27 PM   #2
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I can tell you but you're not going to like it. Crawl under the tag and look up. you will see a vacuum booster with master cylinder attached. Reach up and remove master cylinder cap and dip your finger in to check level. Cap is plastic so be careful. If fluid is dark, change it. If no fluid, you may have bigger problems such as a leak requiring master cylinder rebuild if you can find the parts. This system is not exactly designed for serviceability. If you don't know how the system works, briefly stated, it uses main brake system pressure to modulate vacuum to the tag booster.

Good Luck
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Old 08-29-2014, 09:45 PM   #3
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If your tag axle brakes are truly hydraulic the the Capt. is probably correct. Some gasser tag axles were electromagnet like most trailer axles. In that case you would have a controller box under the dash but no master cylinder.

Let us know what you find and we can help further.
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Old 08-30-2014, 11:23 AM   #4
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If your tag is made by MorRyde and has hydraulic brakes, the brake system was supplied by Master Brake which is no longer in business. That doesn't mean they can't be repaired. He are two earlier post discussing their repair and how to source parts.
https://www.irv2.com/forums/f65/brak...le-146794.html
http://www.irv2.com/forums/f65/hydra...on-101083.html
Here is a recent post that the OP took the tag brake to a shop and had them rebuilt.
http://www.irv2.com/forums/f107/tag-...es-216862.html

Chuck
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Old 09-03-2014, 04:12 PM   #5
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Attached is the Owners Manual and Service Manual for your tag axle.

Chuck
Attached Files
File Type: pdf SMART ryde Tag Axle Owners Manual.pdf (800.2 KB, 85 views)
File Type: pdf SMART-ryde Tag Axle Service Manual.pdf (908.5 KB, 75 views)
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