Pusher vs Hack Brake Adjustment

Woe unto you that bought the first model year of a major remake, perhaps this section can help address any 2014 and later model Ural "imperfections". Here's a special section for folks with the latest rigs to discuss 2014 and later model-related topics such fuel injection, 3-wheel disc brakes, hydraulic steering dampers, spin-on oil filters and other anomalies that don't belong on true Russsian motorcycle ;-P We've gone from using big hammers and greasy wrenches to needing computers and Ouija boards in order to fix our rigs.
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Please keep this section specific to issues pertaining to 2014 and later models such as fuel injection, sidecar and rear disc brakes and so forth. Ask general or non-2014 and later specific questions in the main Hammerin' & Wrenchin' section.
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Razor
Hero of the Soviet Union - 2017
Hero of the Soviet Union - 2017
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Pusher vs Hack Brake Adjustment

Postby Razor » Sun Jun 18, 2017 9:34 pm

I looked around but didn't find it so I'm asking for some help here. I've got a 2015 cT and I need to adjust the ratio of braking force between the pusher and hack wheels. When I apply the brake pedal the rig pulls aggressivly to the right so I need to reduce the amount of braking on the hack relative to the pusher. I'm not sure how to do that and would appreciate a bit of help. It must be easy because the video I saw about brake adjustment said to do it but not how and breezed right past that step ;-)
Chris

2015 Gear-Up in Forest Fog, "Betty the Beast"
2015 cT in Terracotta

Several previous Harley's

RobH
Hero of the Soviet Union - 2017
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Re: Pusher vs Hack Brake Adjustment

Postby RobH » Mon Jun 19, 2017 4:28 am

I just finished setting the brakes up on my G.U....

Find yourself a gravel road for starts.
Get moving about 15 or 20 KPH and apply the rear brake only.
Now go back and look at the skid marks.
You should get the pusher wheel locking up just before the hack wheel locks.
Adjust when and how the hack brake comes on by first taking the cover off the hack master cylinder just to the right of the foot brake. (two allen screws)
Loosen the lock nut on the master cylinder rod and screw the piston adjustment in or out to firm up or weaken the hack brake.
Making the rod "longer" will cause the hack brake to come on sooner/harder relative to the bikes rear brake.
Making the rod "shorter" will do the opposite.

Others will chime in if I've missed anything!

R.
Dum Vivimus, Vivamus

2014 G.U.
1999 Honda ST1100
1981 BMW R100RT
1971 BMW R60/5
1965 Honda CB77

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Tomcatfixer
Hero of the Soviet Union - 2017
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Re: Pusher vs Hack Brake Adjustment

Postby Tomcatfixer » Mon Jun 19, 2017 5:31 am

Picture worth least twelve word...

2017-06-19 05.23.23.jpg

The hack brake adjusts in the exact same was as the rear brake. As Rob mentioned, just thread the master cylinder's actuating rod in or out to get the response you want, relative to the adjustment of the rear brake.

Be mindful that you need to leave a gap between the actuating rod and the master cylinder's internal piston, but your adjustments shouldn't take you that close.
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- Chad

Virginia Beach, Virginia, USA

Current rides:
2015 Ural cT "Mobile Chernobyl", 1999 Ural Tourist "Desert DisGrace: the Iron (Oxide) Curtain", 1994 Honda VFR750F, 1986 Yamaha FZX700S Fazer

Previous rides:
2007 Honda VTR1000 FireStorm (Super Hawk in U.S.)
2001 Buell Blast! - - - - - - - 2005 Yamaha FJR1300
1993 Honda CBR600F2 - -1984 Yamaha FJ1100
1986 Yamaha FZX700S (a different one than above)

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Razor
Hero of the Soviet Union - 2017
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Posts: 106
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Location: Franklin, TN

Re: Pusher vs Hack Brake Adjustment

Postby Razor » Mon Jun 19, 2017 10:19 am

Thanks guys!
Chris

2015 Gear-Up in Forest Fog, "Betty the Beast"
2015 cT in Terracotta

Several previous Harley's

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Mr Wazzock
Hero of the Soviet Union - 2017
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Re: Pusher vs Hack Brake Adjustment

Postby Mr Wazzock » Mon Jun 19, 2017 4:21 pm

Yes TCF already mentioned, both pusher and hack adjuster rods MUST both have some slack, 1mm gap minimum I think it is, to ensure master piston can fully release, if not, risk of brake binding, overheating, locking up etc.
Mike H
2016 Ural cT, in glorious terracotta


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