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In an attempt to become more familiar with my tractor I removed the loader mounts and had a look at the clutch, fingers and release bearing. After reading the adjustment procedure I realized that they do not explain how to adjust the fingers them selves. I will set the gap to 2.5mm however I noticed one finger is colser than the others to the bearing. There is a nut on the finger however there seems to be no way to adjust it. The bearing seems fine (spins freely and is not rough- is sealed on the back). Anyone have any suggestions or is this a non issue. The tractor runs fine, shifts and starts without a hitch.
I will post a pic once I figure out how.
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A misaligned clutch finger may eventually cause a problem. If it drags on the throwout bearing it can result in heating and failure, for instance. There are posts on this and other forums covering adjusting the Jinma clutches. You'll have t search for them as I don't have them at my fingertips, but I strongly suggest you do so and set up that clutch exactly right. Your clutch will work better and last longer that way.
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They used 2- different types of clutchs,3- finger or 6- finger,can you tell me which one you have ? or send a pic ?
Tommy
Affordable Tractor Sales
“Your Jinma Parts Superstore”
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I have been trying to find info. on adjusting the distance between the clutch fingers and the bearing. This is not covered in the manual. Mistery solved thanks to Tommy. The JM604 has a bolt with an alen key end and a nut to secure it. (no double nut like the smaller tractors). From the side you cannot see this, however Tommy had a spare clutch and took a pic. I can now set the fingers so they are all equal distance fron the bearing and then adjust the distance to the bearing 2.5mm. I wil see if I can post a pic. Cheers
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Could someone help with the translation of the following steps?
Not much to work with from the manual:
Manual States
1) Adjust the dual acting clutch on the assembling holder. The adjusting steps are as follows. Adjust the length of bolt(10) and make the distance between the 3 release leavers (18) and the assistant clutch pressure plate (3) be 100.2 mm
2) The distance error between the 3 release leavers and the pressure plate’s top side is less than 0.1 mm. After adjustment tighten M10X1.
3) Through adjusting nut (5) ensure the clearance between the main clutch pressure plate(21) and the adjusting nut (5) to be within 1 -1.2 mm
4) For adjusting clutch pedal’s free stroke, firtsly adjust the length of the clutch push-rod so as to ensure the gap between the top side of the 3 release leavers of the main clutch and the release bearing to be 2 – 2.5 mm.
5) so as to ensure the idle stroke of the clutch rocker to be 5.5 – 7 mm. After adjustment tighten the lock nut (9)
6) Adjust the limit of the clutch pedal’s working stroke : Lossen nut (9) rotate adjusting bolt (10) to make the clutch release rocker (11) lower part working stroke is ( 23). Then tighten nut (9)
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I have been working on getting the clutch set up. Have no problem with the Main Clutch and have the fingers at 2.00 mm clearence from the out throw bearing.
Have set up the PTO clutch at variuos clearences (1.00 to 1.5 mm recomended), however I cannot seem to get the PTO pressure plate to disengage. In the pic below you can see the direction of movement. If I thghten the nut all the way down I can move the PTO pressure plate (one at a time). However I cannot seem to get it to move with the Main Clutch pressure plate. I was wondering if it is possible it is seased, which would explain why I cannot seem to disengage it. This is evident when you go to engage the PTO speed selection leaver (say 540). You can feel the PTO shaft turning (clutch peddle in all the way). With a bush hog attached you get quite a bang if you force it (found that out by accident). The tractor sat for a long time prior to me buying it. If you get the clearence (PTO pressure plate) to small you cannot shift the transmission.
Any suggestions?
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