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greasable trunnion bushings


r686st

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Like they said grease is cheap, I did my dump trucks weekly, road trucks every two or three weeks unless the weather was funky. Bad weather or I was hauling the dump trailer off road then weekly.

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I try to grease my truck at least once a week, and I always just put 10-15 shots in the trunnion. I've heard that you're supposed to jack the truck up where the weight is off of the springs, but I never do that. I may be messing up, I'm not sure.

Yes, you are supposed to jack the rear of the truck up via the frame, this takes the static load off the bushing & will allow the grease to get where it is needed most, THE BOTTOM. Highly recommend a EP or Extreme Pressure grease, as it will continue to lubricate the bushing to shaft surface even under extreme loading.

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Richard Mark

Owner / Master Model Maker

Industrial Model Design
Ap40rocktruck

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  • 8 years later...

Your supposed to jack up your truck when greasing trunnions. Need to take the weight off, then grease till a little comes out. Most people don’t know this but it is the right way. I don’t know if NOT doing it will make much of a difference but when you buy a 190k dump truck, yea I’m gonna do it the right way! 

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