rBond. There are lots to look for, I'll start with a few, I am sure others will chime in.
1) overheat? drive it around, work it, check coolant level before running.
2)check the engine oil level and condition. Does it look new? 3)Diesel? Gasoline? Dates on any of the filters?
4)Bring a amp gauge, is the battery getting charged?
5)Engine # should be behind the starter, but visible. bring a flashlight and rag w/some brake cleaner. Pull the breather cap, (if it has one) and check for blow by when it is running.
6)Hyd. leaks? check after running awhile and while you are operating them.
7) go lift somthing heavy. I think mine could lift 4-5K before the back of the crawler comes off of the ground, (no rear counterweight) on mine.
8)run it through the gears. forward and backwards.
9) there should be a transaxle dipstick under the seat. (just lift the seat bottom up). The fluid should be clean and clear. Does it smell burnt? is it full?
10) brakes were not much to be desired, but some still work okay, do these? do they 'grab'? do you have to 'pump' them to work?
11) Tracks, too tight is not a good thing, there should be some deflection, about 1-1/2", measured on the top, while backing against a log or 4x4 laynin on the ground.
12) The track adjuster is located behind the front wheel, called the idler wheel, Hopfully it's all there and working. You can look for rust around it's shaft (not a good sign), or mud packed around any of the undercarriage. 13) The bottom rollers I think there are 5 on each side, should all turn freely. watch them when someone else is driving...slowley. Sometimes these machines are used in wet or snow conditions which accelerates there life. They can also wear down, (kind of hard to explain) and will then work their way into the 'pin boss' on the track rail (sometimes refered to as the 'chain' or 'track link'. This wear is readly visible. If the rollers are worn down, most all of the links or rails will show a shiny spot where it is rubbing. About $1200.00 for rollers.
14) Pins and bushings. There are websites that address this you should look at them. Or at least 'google image' them. There is a man (I think it's a he) who goes by 'old magnet' read his website...good stuff!
15) The sprocket teeth if sharp, indicate wear or worn. They should be a bit flat on the tip.
16) back to the rails, using your flashlight, look for cracks or welded cracks.
17) while you are down there, look for oil leaks on the bottom of the machine.
18)loader, These have 'pins and bushings' at the connections. often these are loose or worn. These can be replaced, its just time and money.
probably one of the best TIPS...LOOK AT THE ZERK FITTINGS! are they used or abused????? ??"any grease is better than no grease"!!!! The matainiance of greasing is a tell tell sign of someone who is interested in there machine!! Have fun, and lets hear back from you...sl
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