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8270 self propel

#1

F

fdsinozich

I'm still not getting something. New rollers, adjusted rod. It pulls for about 15' then stops pulling. Push it a bit and it pulls briefly, then stops again. Is there a transmission that could be slipping? I am lost.
Thanks


#2

R

Rivets

If the rollers stop turning it is probably the gears in the transmission. Sorry to say if this is the cast very, very expensive to repair.


#3

turfboy1997

turfboy1997

Ok it is not the brass gear on the inside of the pto so your machine is not shot. You have the older style capstan connector with bushings instead of the later style connector with the springing two square blocks. Anyways 683129 is the part number you need to get you back in business. good luck easy fix.


#4

F

fdsinozich

Thanks, should be able to get to it in a few days or at least find the part.
Thanks again.


#5

O

old lawnboy

You may have a drive shaft issue. There is a drive shaft from the engine to the drive roller shaft. The original drive shafts were mad from a round metal tube squared on each end that held aa nylon square busing. The bushing sometimes goes bad and the square tube rounds out at the end. Later models use a square shaft and a square metal coupling on each end that has a spring between them to keep them in the coupled position. These can also wear out. It could also be gears that couple the two shafts together. The first thing to look for is does the drive rollers continue to turn when the mower does not go. My bet is the drive shaft from the engine to the trans.


#6

O

old lawnboy

old lawnboy said:
You may have a drive shaft issue. There is a drive shaft from the engine to the drive roller shaft. The original drive shafts were mad from a round metal tube squared on each end that held aa nylon square busing. The bushing sometimes goes bad and the square tube rounds out at the end. Later models use a square shaft and a square metal coupling on each end that has a spring between them to keep them in the coupled position. These can also wear out. It could also be gears that couple the two shafts together. The first thing to look for is does the drive rollers continue to turn when the mower does not go. My bet is the drive shaft from the engine to the trans.
Click to expand...
I have several of the newer style drive shafts.


#7

F

fdsinozich

Looking at the parts diagram, do I need the bushings also?
Thanks


#8

F

fdsinozich

Also, how do I remove the drive shaft? Looking at the online manual you have to remove the engine, is that right?


#9

J

jp1961

No, you don't have to remove the engine. According to my Lawn-Boy mechanic's handbook, you have to remove the capstan covers, capstans (they are secured with rolled pins, drive them out), and capstan bearing sleeves (should slide out). Remove the bolt on the bottom of the deck to remove the transmission. Mark the capstan axle as it is hardened where it connects to the trans, so mark it left and right to make sure you reassemble correctly.

Jeff


#10

F

fdsinozich

Hey Jeff,
I'm down to the gear box and removed the snap ring at the axle where it goes into the gear box, but the axle doe not come out. What am I missing?
Thanks


#11

J

jp1961

If your trying to get at the bushings in the driveshaft, remove the transmission as an assembly. There should be one bolt holding it to the deck from the bottom. The bolt may be hidden with dried grass crud. The snap rings just hold the plastic cover on the transmission.

Jeff


#12

F

fdsinozich

I guess I need to remove the parts holding the axles at the ends where they go through the height adjusters, etc. The bolt is out of the gear box but it won't move far enough to disengage the driveshaft. I'll get back on it.


#13

F

fdsinozich

I got the driveshaft out and the shaft and both bushings look solid.. no rounding at all. Where do I look next to correct the problem? I appreciate any help.
Thanks


#14

J

jp1961

Ok, remove the plastic cover on the transmission. You'll have to soak it in kerosene or other solvent to check the gears for wear. I have a 8255 parts mower, not sure if it's the same transmission or not. I'll give you the transmission, but you would have to pay for shipping.

Jeff


#15

F

fdsinozich

Ok, I got. The driveshaft in and got an adjustment on the clutch rod that attaches to the deck. The self propel is working great. Jeff, thanks for the help and for the offer for the gear box. Thanks to all who replied.


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