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  1. V

    Hitachi EX100M-3, aux hydraulic lines hot without attachment

    The machine is a Hitachi EX 100M–3 excavator. I believe it came from the factory with controls for an auxiliary claw or hammer. The four spool control valve is fully populated. Meaning a spool for the auxiliary, bucket, arm, and boom. There is a pilot function from position SK on the control...
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    Towmotor 680p /caterpillar760p

    Im trying to find any info on the gear oil type quantity for the differential on my 1957ish towmotor680p. It's a 7000lb capacity lift truck with a continental f227 engine, and 7.50x15 dual drive pneumatic tires. This differs from the later cat760p. A service manual would be great! I do have the...
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    Diesel Additive Study...what do you use?

    I still stand by Opti lube XPT. Our 250 gallon storage tank had "summer" diesel fuel, filled in September. Opti lube added at that time. In December, it was 2 degrees F, and our 1988 case 680L started fine after sitting for 2 months, did need a battery jump. Our 1997 hitachi excavator...
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    Eager beaver roto D rings

    We need to add four more tie downs to our 20HALX trailer. Eager Beaver allows this modification to the outside rails, and sells the parts. Must be welded to spec of course. Problem is, the EB roto rings are very expensive, and we would like to purchase an aftermarket ring. However, Rud...
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    Question for CT people about a s/a dump?!

    GVW and GVWR, have complete different meanings. GVW is the max you can cross the scale at for THAT vehicle. GVWR is the max combined weight of truck and trailer. "R" = registered. See Kgmz's post # 4 for axel weights and max weights for a given length between axels.
  6. V

    D3B Dozer

    Cat_man320: re final drives. My d3b is the same. Female 1/2" drive on the left, male on the right. Yes, the female port threads are nicked/damaged already. Problem is, my equipment, d3b, 680L hoe, and hitachi 100m3 excavator, are in/used in Vermont to build our driveway, foundation, etc. Me...
  7. V

    D3B Dozer

    Cat_man320 You are correct! The dealers don't seem to have a consistent answer. You are an experienced owner/operator/service person. So, if your unit is operating without problems, your plan works. As I mentioned in a previous post, I think the trans (and bevel) has 30w. I'm going to stick...
  8. V

    D3B Dozer

    Nige, Cat_man320, I read in application note,(that I did not save) at a Pa. Cat dealer/service that the TO-4 was not designed for the older D3b, hence my questions. This dealer said to use TD/TO30 for the trans/clutch. He did say, not to use engine oil in the trans. Hydraulic is just sae 10w...
  9. V

    D3B Dozer

    Cat_man320: When I bought this dozer last year, it did not have engine side covers, so it was easy to feel the heat blowing past the engine. I don't believe the water temp gauge is functional. The engine and radiator did appear dirty, and I will power wash this spring. I know I need to do all...
  10. V

    D3B Dozer

    Does any one have a drawing, or template for the engine side covers on a 1985 or so, D3b? Or side covers they want to sell in the New Jersey or Vermont area?
  11. V

    D3B Dozer

    Cat_man320. My D3b does seem to run hot, but not over heat. I will check the radiator fins. Thanks for the tip. You suggest to keep the final drives full. What fluid to you suggest? the service manual specs a oil that is no longer available, and my local dealer said one type, while a...
  12. V

    D3B Dozer

    Why would the engine over heat on the d3b? Is there specific problems?
  13. V

    Diesel Additive Study...what do you use?

    Just asking, but why should I use your product for lubricity, rather than Walmart 2 stroke in my fuel.? For a stabizer, anti gel, moisture reducer/disapater, I have been very happy with PRI-D. What product do you feel surpasses PRI-D.
  14. V

    Bench Test 580K Instrument Cluster / Gauges

    Johnrich, PM sent.
  15. V

    Bench Test 580K Instrument Cluster / Gauges

    The late 1980- mid 1990s, 580s and 680s hour meter AND tach are pulse driven from the alternators voltage regulator. It is the single tab on the regulator portion of the alternator. This yellow-red wire from the regulator goes through the firewall connector to the back of the tach ( 3 terminal...
  16. V

    Hitachi ex100m-3 owners manual

    Excavator. Thanks for the reply! Just downloaded the manual!
  17. V

    case 680L parking brake won't hold

    I agree with the parking brake valve. But also check the brake pedal valve. To set the parking brake on this machine, set the rpms to at least 1200, move the pin that connects both pedals together, press and hold down both pedals for 5 seconds, then pull the parking brake valve out, release both...
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    Hitachi ex100m-3 owners manual

    The "M" has extra roller on the top, and bottom, six more shoes per side, shoes are 10 inches wider, the operating weight is about 3,900 lbs heavier, 6" extra ground clearance, about 1 mph slower, and a little better lift and digging force. To name a few. Engine is the same. The owners manual...
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    Hitachi ex100m-3 owners manual

    Hi all, I recently purchased a 1996 ex100m3. Tried to get a manual from a dealer, I got 3 different stories of what's available, and price. I'd really like to get a PDF version. Anyone like a dealer in the vt,ny, nj area? Greg
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