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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Cat D6 9U getting hot!!

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Michael/WV

08-09-2003 21:17:54




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Hi All, What would be normal operating temperature for a D6? And when it warms up I noticed the water didn't move in the radiator, the water pump has a little play and the belt is to loose how do you adjust this belt? Hey I'm new to dozer's and I don't wont to mess it up. I think it's a 1956 D6 9U serial # 9U23039. Does anyone know about what it cost to get the brake band relined? Thanks for the Help. Michael/WV

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Towbar

08-13-2003 04:12:10




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 Re: Cat D6 9U getting hot!! in reply to Michael/WV, 08-09-2003 21:17:54  
Michael I have done both sides on ours in past 6 months 1st one Cat parts just under 100.oo 2nd using aftermarket parts just under 30.oo same parts just in not pertty CAT box. Good Luck.



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Kelly

08-09-2003 22:41:15




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 Re: Cat D6 9U getting hot!! in reply to Michael/WV, 08-09-2003 21:17:54  
Michael WV, Your tractor getting hot, maybe, just the fan belt needs adjusting I would start there first. The tractor in question has a adjustable fan pulley, and the belt is tightened by loosening the bolts on the back side of the pulley and removing the locks from there slot and turning the adjusting ring toward the radiator will tighten the fan belt. The adjustment is correct when the belt can be easily pushed inward a distance of approximately 1”. Be sure the locks are in there slots before you tight the bolts which hold them in place. If the fan belt is operated too loose, it will slap against the pulleys, which will cause unnecessary wear to the belt. If the belt is too tight unnecessary stresses are placed on the fan bearing and belt, which will shorten the life of both. I would suggest getting an operator’s manual, serviceman’s manual and a parts book, there are a great help. As for the brake job, your cat dealer can give you a close estimate on that,you may want to post these question on the Cat BB as well...which is www.ACMOC.org

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Deas Plant.

08-11-2003 12:25:38




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 Re: Re: Cat D6 9U getting hot!! in reply to Kelly, 08-09-2003 22:41:15  
Hi, MichaelW/V. Almost all diesel engines are designed to be run at around 180-190 deg. F.. For safety's sake, call 200 deg. F. the upper limit. Much cooler and you are not getting the peak efficiency out of it. Much hotter and you risk 'cooking' it. As well as fan belts etc., check your radiator core to see if it blocked with dust, grass seeds or other vegetation or accumulated oil/dust mixture. If it is, blow it out with compressed air or, better yet, a pressure washer. If using a pressure washer on an old raditor, just be careful that you aren't bending the plates over and blocking the air way that way. By the very nature of the work they do, 'dozer radiators and cooling sustems cop a hiding but show it a little TLC and most will serve you pretty well. Hope this helps. You have a wonderful day You have a wonderful day. Best wishes. Deas Plant.

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Kirby

08-23-2003 19:24:28




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 Re: Re: Re: Cat D6 9U getting hot!! in reply to Deas Plant., 08-11-2003 12:25:38  
Mr Deas, I always look forward to your comments. You have good solid advice and your responses are courteous and very helpful. On the pressure washing subject, you are right, use the pressure directly and you will bend the vanes. Especially on the older radiators. Here are some other precautions we follow: Do not pressure wash a machine with a hot motor. Let it cool first before applying any water to the engine compartment. A cracked block could result. Do not operate the machine until the radiator and motor area has dried out. Preferably overnight. Taking a wet machine back into a dusty work environment will just plug it up again prematurely. Pressure wash until the water runs clear from all areas of the radiator. Use a wider fan tip on the pressure washer and it will not bend the radiator fins as easily. Look for any hydraulic leaks which may be blowing an oil mist into the radiator which accumulates more dust and debris faster. The fan shroud will normally show this accumulation. I hope these suggestions help you get your problem resolved.

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Kirby

08-23-2003 19:29:04




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 Re: Re: Re: Re: Cat D6 9U getting hot!! in reply to Kirby, 08-23-2003 19:24:28  
One more suggestion... Clean the entire motor area, block, injector pump, hydraulic lines, etc. Once the engine is clean and the machine is put back into service, the first accumulation of oil on a clean engine will let you know where you might be having your oil leak problems.



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