chain adjustment - Polaris ATV Forum
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post #1 of 8 (permalink) Old 10-26-2009, 05:32 PM Thread Starter
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chain adjustment

i got a 2002 250 polaris trailblazer 2 stroke i cant figure out how to tightin the chain? please help
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post #2 of 8 (permalink) Old 10-27-2009, 08:33 AM
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Where your hitch is, lossen the 2 bolts on each side, take hammer and small punch to roll the rear axle cam.
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post #3 of 8 (permalink) Old 10-27-2009, 10:45 AM
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And welcome to the board!

I tried setting my password to "penis" but it said my password wasn't long enough...
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post #4 of 8 (permalink) Old 10-27-2009, 02:45 PM Thread Starter
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thanks for the info but i dont see where to hit on it ive looked all over it an the sprocket lil more info please an does the tires need to be on or off the ground
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post #5 of 8 (permalink) Old 10-27-2009, 06:15 PM
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sometimes you don't have to hit. look on the underneath left side bolt ,it under there .sometimes it might need a little penetrating oil on it ,but it should slide easily.
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post #6 of 8 (permalink) Old 10-27-2009, 07:23 PM Thread Starter
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thanks i will try it tomarrow after work
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post #7 of 8 (permalink) Old 04-09-2010, 01:39 PM
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I will explain you in detail.

1. Park it on ground level.
2. Raise the rear end.
3. loosen the clamp bolt on each side.
4. Insert a drift into the bearing housing hole.
5. Then rotate the bearing housing downward until the chain is taut.
6. Tighten each swing arm clamp bolt.
7. Measure distance between 20 links and the chains upper run.
8. Check the chain.
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post #8 of 8 (permalink) Old 04-09-2010, 03:49 PM
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different machine, exact same idea. i posted this awhile back for someone else...here it is:

Quote:
Originally Posted by blueline15 View Post
i can help you on how to actually do it, im just not sure about the weight on suspension thing. i have seen it done both ways, and im not sure what or how polaris recommends it for you quad, although im sure soon, somebody with a TB can chime in and say. i think it is with no extra weight on the machine, but i could be wrong there.

how to do:

looking at the picture below, the first thing you need to do is loosen bolt #30 (2 of them) and nut #27. you shouldnt have to take the nut off of the bolt, just loosen it as far as you can.


1 5630551 Cam, Adjusting 1 Usage
2 7041986-067 Spring, Compression, Black 1 Usage
3 7542439 Nut, Nylok 2 Usage
3 7542439 Nut, Nylok 2 Usage
4 7515415 Screw 1 Usage
5 5251753 Retainer, Spring 1 Usage
6 7042318 Shock, Rear 1 Usage
7 5134321 Bolt, Pivot 2 Usage
7 5134321 Bolt, Pivot 2 Usage
8 5133166 Bushing, Pivot, LH 1 Usage
9 5434545 Bushing, LH 1 Usage
10 7661046 Rivet 2 Usage
11 5432727 Guide, Pad, Chain 1 Usage
12 7080510 Fitting 2 Usage
12 7080510 Fitting 2 Usage
13 7547082 Nut, Hex, Jam 1 Usage
14 7556035 Washer, Flat 1 Usage
15 5434546 Bushing, RH 2 Usage
16 5133167 Bushing, Pivot, RH 1 Usage
17 5247488 Bracket, Bolt Lock 2 Usage
18 7515399 Screw 2 Usage
19 1541987-067 Asm., Swing Arm, Black [Incl. 9,12,16] 1 Usage
20 7078572 Decal, "Chain Free Play" 1 Usage
21 5432854 Guard, Chain 1 Usage
22 7515304 Screw, Flanged 1 Usage
23 5332828 Bushing 1 Usage
24 7558402 Washer, Flat 1 Usage
25 7542343 Nut, Flange 1 Usage
26 7555883 Washer 4 Usage
26 7555883 Washer 4 Usage
27 7547066 Nut, Nylok 2 Usage
28 7170915 Decal, Hitch 1 Usage
29 2200472 Kit, Hitch [Incl. 27-30] 1 Usage
30 7512586 Bolt 2 Usage
31 7517761 Screw 1



now, looking at the pic below. see #13? that is your axle housing on the center of your drive axle. the bolts you just loosened up clamp around that lobe. you will notice on the housing, there is a large "nut" machined into the housing. you need to get a wrench big enough to fit that nut, and you use the wrench to turn the axle housing. you will notice, the axle sits off center in the housing, and the housing itself is basically a big lobe. to tighten the chain, you roll the lobe towards the front of the machine, the axle to the rear. to loosen the machine, do the opposite, roll the lobes to the rear, so the axle moves to the front of the machine. when you get the proper chain adjustmen, just tighten the two bolts back up, and your done.


1 7670160 Ring, Retaining 1 Usage
2 7515102 Screw 1 Usage
3 5133428 Nut, Axle 1 Usage
4 7547217 Nut, Nylok 3 Usage
5 5245716 Disc, Brake 1 Usage
6 5631457 Hub, Brake Disc 1 Usage
7 7512365 Screw, Cap 3 Usage
8 7670161 Ring, Retaining 1 Usage
9 5410889 O-Ring 2 Usage
9 5410889 O-Ring 2 Usage
10 3610070 Seal, Lip 2 Usage
10 3610070 Seal, Lip 2 Usage
11 3554518 Bearing, Cone, Tapered 2 Usage
11 3554518 Bearing, Cone, Tapered 2 Usage
12 3554517 Bearing, Cup, Tapered 2 Usage
12 3554517 Bearing, Cup, Tapered 2 Usage
13 5134460 Housing, Axle, Rear 1 Usage
14 7080306 Fitting, Lubrication 1 Usage
15 3221192 Link, Connector, 520 1 Usage
16 5133967 Axle, Rear 1 Usage
17 3221193-078 Chain, 520 O-Ring 1 Usage
18 7542439 Nut, Nylok 6 Usage
18 7542439 Nut, Nylok 6 Usage
19 5211618-067 Guard, Sprocket, 42T, Black 1 Usage
20 5630586 Spacer, Sprocket Guard 1 Usage
21 3222061 Sprocket, 40T 1 Usage
22 1520795 Asm., Hub, Sprocket [Incl. 24] 1 Usage
23 7515528 Bolt 3 Usage
24 7518378 Stud 3


did that make sense? and if nobody chimes in, you can try calling a dealer and asking the service manager about if the machine should be weighted or not, and what the play in the chain should be. good luck!
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