I have taken the master cylinder out without taking the aluminium tank out. If you have a trained octopus it is easy.... otherwise be prepared for lots of cursing, sore fingers, cuts and bruises. I suspect the gap in the back of the fibreglass tanks is too small to get your hands in. Did you get the small O rings for the park brake lever? These are often overlooked. regards Rob
Rob Thompson 0429 493 828 On Tue, Jan 19, 2021 at 8:38 AM Ian Williams <[email protected]> wrote: > Hi Kurt > U have to take the tank out. Butbe real careful as there is a trick to > it. Drain the tank and remove the top panel. Lift the tank so you can undo > the bottom banjo fitting > Then lift the tank out by rotating the rear first than when upside down it > can be completely removed > > Sent from my iPhone > > On 19/01/2021, at 9:18 AM, Kurt Redinbaugh <[email protected]> wrote: > > Thank you all for your prompt responses and support. The O rings for the > master cylinder came in the post yesterday. The remaining question I have > is do I need to remove the fuel tank to access the master cylinder or can > it be dis-assembled as needed from the top? Seems rather a stupid question > inasmuch as the resevoir is in the way but then I'm asking the experts! > When I took the wheel brake calipers apart I noticed to my surprise that > the wear on the brake pads was minimal so I didn't replace the pads. The O > rings, however, were gummy and sticky. There was some grit in the space > behind the pucks but most noteworthy was a brown sediment that was quite > hard that had filled the gap for the O ring on the pressure side of the > gap. I had to use a knife edge to scrape this sediment out of the gap. > For the record I used a motor cycle/ATV lift with additional structure and > proper padding to lift the landing gear bow from the center. This raised > both wheels enough that they and the brake calipers could be removed. > Overnight I put the wheel axles back in and used auto jacks under each > wheel axle and the center lift for three point support to secure the > aircraft against forecast winds. > Best Regards > Kurt > > ---------- Forwarded message --------- > From: Ian Williams <[email protected]> > Date: Mon, Jan 4, 2021 at 6:39 PM > Subject: Re: [DOG mailing list] Brake fluid > To: <[email protected]> > > > Gidday Kurt, > I may be able to shed some light there. > Not sure if yr H36 is ex Thai but military tend to ignore any > manufacturers type certificate, Plus the normal brake fluid they use is > the aircraft stuff. > So dot4 is of course automotive. > It does sound as if U will need to replace all the seals. As Rob said > the brakes themselves are Cleveland replacement seals should be easy to > get. Not sure about the master cyl tho > > Best regards > Ian Williams > > Sent from my iPhone > > > On 5/01/2021, at 2:17 PM, Kurt Redinbaugh <[email protected]> wrote: > > > > Thank You Rob for your prompt response on my brake caliper question. > > I am a bit confused though... > > On pp44 of the HOFFMANN AIRCRAFT "instructions for continued > airworthiness" it emphatically states that DOT 3 brake fluid is used and > that MIL-5606 is NOT to be used. My brake reservoir had a red tint to it > when I put S/N 3660 back into service after 12 years as a hangar queen. > Last week I had a leak that drained the reservoir full of DOT 3. The > airplane is tied down on the ramp at the Reno-Stead airfield and is > completely covered. The weather has been freeze-thaw cycles lately. The DOT > fluid I used was fresh and stored in a factory sealed container. I have > ordered O ring number 101-02300 from Aircraft Spruce to replace the failed > seal in the caliper. > > I have seen in the DOG that MIL-5606 fluid is to be used. Is there an > explanation for this seeming contradiction? > > As always thanks for your support > > Kurt > > > --------------------------------------------------------------------- > You are subscribed to the Dimona Owners Group mailing list. > This list is archived in public. http://waikeriegliding.com/dog/ > To unsubscribe, send email to: [email protected] > >
