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My Jinma 284 was pulling hard to the left, so I tried adjusting the right brake so it grabbed harder. Still pulling, so I pulled the wheel and fender, opened up the cover to the brake case and found that all the rivets holding the inner part of the disk to the outer part were all broken. when I look further back with a light it looks like the inner disk may be the same way. Is there a procedure anyone has written up on disassembling these and getting them back together? Is there a way to pull the inner and outer pressure plates out as an assembly (without removing the springs and ball bearings between them)? I've seen the exploded diagram, but sometimes there are tricks that make things go a lot smoother. After looking at the broken disk it looks like the little bit of braking I was getting was from the friction between the two surfaces where the rivets were. Your help is appreciated. -
Well, I kept going deeper and finally got the pressure plate assembly out as one unit. The inside disk had all the rivets broken too. Is there a bolt set with thin heads that will replace these rivets so I don't have to buy new discs? I haven't priced them out so I don't know what I'm looking at for $$$.
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Where are you at? If there is a friction shop near you that rebuilds clutches and brake shoes they would do the job for a minimal price. I have to ship old brake shoes (that are no longer available) to get relined to Portland. When I lived in Oakland I could drop off a few clutch sets and shoes in the morning at Oakland Friction and have them back by noon.
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The discs are not expensive, here is a link to them from my website
Tommy
Affordable Tractor Sales Co.
“Your Jinma Parts Superstore”
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Well, I got the two new friction discs from Burley in Tacoma (fast – 1 day to get) and installed them, made adjustments best I could to try to match up right and left and now it holds well on a steep hill. I still have to stand on the brake and clutch, but I imagine that's probably pretty normal as I only weigh about 160. So another task is now checked off my to do list. Now I'm studying how to fix my leaky hydraulic fittings by my FEL control but if I have any questions that will be a seperate post.
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I'm with Bob on that one – I try not to use the brakes on hills, as the chance of losing traction is just too good for me to feel comfortable about it. Of course, I'm pretty timid when it comes to things like that, after a few close calls when I was a kid on the farm. I'm way older now and don't heal up nearly so fast as I did when I was 14. So no more side-hill gymnastics, turning on hills, things like that.
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