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Kubota U35-4 Auxiliary Lighting Question

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New to the forum and am impressed with the wealth of information here. I purchased a new U35-4 2 weeks ago and have searched the forums but cannot find any information relating to this. I am looking to add a switch so I can run my boom light independently from the cab lights. Picked up a Rigid flood light that came with the harness and switch, which will be replacing the factory halogen light. I am assuming I will have to add a fuse, but am basically clueless as to anything else?

Thank you for any input!

Kubota KX 121-3 Lifting Eye

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Needed / Wanted a lifting eye on the new Hoe ... so .... Today I burned one out of 3/4" T1. 2" x 3" oval hole ... 4-1/2" long on weld end. Chamfered the weld edge with the torch & ground it up nice.
Ground the paint off of the "H Link" .. pre-heated the H & the eye a little with the torch ... then welded it on with 1/8" 7018. Air chiseled / peened the bead off immediately after each rod ... Let it cool & added a little paint.
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Komatus PC 35 MR 2 Swing Problem

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I have a problem with the swing on my PC 35. The symptoms are as follows,

1. Full movement but not a lot of power moving in either direction. example. if trying to use swing to refill a ditch I must take very small sweeps of the loose earth or the boom stalls.

2. When traveling across a slight slope the boom swings to the down hill side. Also, when on the level you can push the boom to either side.

3. When swinging the boom the swing brake stops it dead when the controls are released and then seems to unlocks in a short time and can be moved as above.

4. I had a Komatsu tech from the local dealer come out ( Not Cheap) to take a look at this and several other issues ( all resolved) . I was told to get a replacement swing motor. However, the parts man at the same dealership is spectacle and since neither he or I can seem to locate an after market of rebuilt unit he and I are assuming there is no big demand and therefor not much of a failure rate so I'm curious if any of you have a suggestion.

Thanks

Joe

Takeuchi TB135 start problems - Air Heater

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Having some problems with the machine starting. Starts fast and fine when warm and runs fine. To start it when its cold it likes to have the glow plug light key turned left for the maximum time the light is on, plus another 15 seconds even when the outside temperature is 50 degrees out. Since the engine has no glow plugs, it seems like I should replace the Air Heater. THis is what Takeuchi USA suggested. Anyone familiar with this and the install. I have ordered the part Y129100-77501

Sometimes the big excavators need dug out with a compact excavator

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I had a buddy call and wanted me to load and get to his excavator asap, as it was sinking. He was digging a tile line across a swampy area. He made it 100' and then got to the base of a dam and started sinking. I laid some cedar trees down and tracked down around his tail to dig around the back side after finding his tracks and tow hole on the high side. After digging him out, we hooked his dozer and bucket cat to it to help him pull himself out.
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Please help komatsu pc30mr-1 hydraulic issue

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Hi everyone,

Here is a description of what happens with my excavator I recently bought, if any one has any idea's that would be heaps good.

I asked komatsu and they spoke of it as*a 'hydraulic issue' and asked if i have gauges or fittings to do tests*(which i don't)

As a guess i would think its a sticking*valve or something going to the final drives but don't really have a good understanding of where anything is on the machine not knowing much about hydraulics or excavators.

The excavator is what i am told is a grey import, and its a komatsu PC30MR-1

When using the machine (once its warmed up) when i stop moving*it, the*revs drop down, and sounds like it is going to stall or droped down sounding underload, then when i start moving the revs go back up, like something is sticking or blocked.

It will happen almost every time i stop, like the motor or hydraulics is under load or blocked.

I can get the revs go back up to normal by moving backwards and forwards a few times.

While stopped when it does this, with the revs low or under load if i move the throttle to increase the revs it has no affect on the revs,
and will only change the revs once moving again.

Also if anyone info on this model that would be usefull or a service manual that would be awesome as the bloke I got to service it couldn't find a hydraulic filter and just told me they only need replacing every 5000hrs which doesn't seem right to me.

Thanks.

Bobcat 331E Problem

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Hi,

I have a Bobcat 331E I'm getting a code 12-22. It doesn't stay on all the time kinda comes and goes didn't know if anyone has had this issue before.

Thanks

Looking to buy a used mini excavator,need input

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There is a Yanmar Vio35-2 serial#22544B with 3600 hrs down the road from me for sale. He's asking $15000. Would you say that's a good price, it's looks in real good shape, the cab is not beat up at all inside or out which lends me to believe it was not abused. I just retired last year and this machine would come in handy on my 40 arce property on live on,I already own a model 332 j Deere skidsteer and this mini excavator would be nice for trenching and brushing. I think it's a 2003 by the serial# but I'm not sure can anyone confirm.

Nagano

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HI all I am a farmer in qld aus ,I am loking at buying a 2009 nagano 5.4 t mini ex .it is a comparatively good price as are the other two for sale at the moment ??are the parts hard to get and /or expensive.i have seen the machine operating ,seems ok,has done 3000hrs .any hints for a beginner thanks pompom

Komatsu aftermarket pins/bushings pc45r-8

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Looking to tighten up my kmartsu mini and can not find a supplier. I have tried Regal, CTP. Where next?

IHI Excavator Bottom Rollers IS40G help needed

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Anyone have any leads on new IHI IS40G2 Bottom rollers. Its a grey market machine and they are available overseas but was hoping to find a US supplier since shipping prices are crazy. Dealer doesn't have them. I need all 8. Thank you in advance.

PC50uu and Yanmar YB301

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Hey everyone, I'm new to the forum. I've been looking for a decent size mini excavator for a while and I'm going to look at 2 in the next week. One is a PC50uu, the other a Yanmar YB301. I'm sure the Yanmar is grey, and I think the Komatsu is as well. I cant find any info on specs on either machine - weight, digging depth, HP, etc. so if anyone can provide me with some specs on either machine that would be awesome. I'm also curious as to any experience anyone has with either machine. The Komatsu has parts I can find, but I can't even find a Manual on the Yanmar. Pricing is 8 for the Komatsu and 9500 for the Yanmar. I know the Yanmar hour meter says 1200 hrs which I find hard to believe, but the engine looks clean, could be a replaced engine for all I know. Anyway, bottom line is I'm just looking for info and general opinions of both machines.

Thanks everyone!

Bobcat 331D

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Hi All, Doing the yearly strip, clean, paint and repairs on my Bobby. Every year it seems, I am having to fix the ram shield for the blade. This year, the top lugs snapped off and the bottom of shield was bent a bit. Likely from back blading. The engineer who designed the ram to blade setup should be slapped. The problem is the shield gets too close to the ground, and if you back blade over a rock, it causes problems. I need the shield on, as when I plow, rocks (going forward) can tumble over blade and hit hydraulic lines (I had a rental many years ago, and the shield was gone, and a small rock hit the lower hydraulic fitting, and I had a geyser and big bill).
I reinforced the shield around the lower hydraulic fitting a few years back as the thin shield bent in that area...haven't had issues with that since, but the whole shield is not happy when I back blade (lot of strain).
Since I like to MIG weld, I was thinking of adding more metal...but where?
Has anyone reinforced that area where ram meets blade pin point? Adding a scrapper blade to bottom of blade would raise ram a bit, but that sounds like a headache and would decrease clearance when trying to maneuver in a tight spot. Ideally, redoing the pivot points would be the best idea, but that is a lot of work. I was thinking of adding a low profile U shaped iron piece on the underside of lower pivot point. I will probably run into problems back blading, as it would be the low point...another brainstorm was to weld on a muffler bracket to lower end of ram, then attach it to shield somehow?
Any idea appreciated.
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PC75UU-3 code help

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Hi guys I have a PC 75UU-3 serial number #15453 that has a code 17 on the dig display. Any thoughts before I cut the beeper wire.

PC50MR-2 Engine Stalls

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I working on a PC50MR-2. The engine will stall intermittently when you return to neutral when traveling. The engine will restart each time and the issue will occur again. Once it starts happening it will occur after operating either travel lever or both levers in ether direction(forward or reverse). You can raise the machine and it will still stall. Sometimes the engine has trouble starting. The issue will not occur when operating any of the implement functions. I believe that the pump is not "de-stroking." I believe that the pilot is keeping the pump stroked too long and stalling the engine.

Any thoughts?

Does anyone have a hydraulic schematic for this machine?

Cat 305 ECR heater/air con troubles

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Hi all, I'm having trouble with my heater/air con etc. the relay is making a buzzing noise when the fan is off and the air conditioner has stopped working now. It did blow the fuse a few times but was working ok until the air con stopped it still blows air but the blue light on the switch is not coming on and no cold air. With summer arriving its time to fix it. :) Any help much appreciated. Mark

Bobcat E80 Excavator - engine water pump

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Hey guys,


The water pump drive shaft has a nasty loud squeal. It began this spring. We quieted it by spraying WD40 in behind the drive pulley. Worked since spring.

I was thinking before the water pump failed in the field I could swap it out this winter.

Bobcat quoted me $1000 for a new one. That seems like a mistake to me.

Anyone have any experience pricing a water pump?


Ken

Cat 304 quick coupler help

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Hey guys, does anyone know if the Cat 304 and 303 use the same size quick coupler? I've got a bunch of 303 attachments already and I'd like to bump up to a 304 size machine, just wondering if it will all still work with it. Thanks.

Bobcat 331, removing main boom cylinder?

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Howdy all. Long time reader but first time poster.
I have a 2002 Bobcat 331 Mini Ex that I need to redo the internal seals on the main boom cylinder. Started to remove the cylinder last night and I can't get the pin at the base of the cylinder to budge. I have whacked on it quite a bit with a 5 lb sledge and get nothing. Afraid to get any more aggressive for fear of damaging the casting that houses the pin. Is it better to just remove the rod from the cylinder and do the seals and leave the cylinder in place on the machine?

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Need Electrical Schematic for PC50MR-2 Komatsu

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I'm having an electrical issue with a PC50MR-2 Mini Excavator. Does anyone have access to an electrical schematic?
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