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Cat D318 6 cylinder diesel

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PostPosted: Fri Jul 13, 2018 8:07 am    Post subject: Re: Cat D318 6 cylinder diesel Reply to specific post Reply with quote

Thanks for your offer of help! My cell phone is seven 65 three 66 seven270, call anytime.
The previous operator had been trying to bleed/prime the engine by cranking, this would have taken forever, batteries go flat pretty quick, he didn't realize there is a compression release! Also, he was cranking with the governor level in the "stop" position, so he wasn't moving any fuel at all!
The fuel filler neck was 2"MPT, so I put on a 1/8" reducer coupling with a Scrade valve, put in 5 PSI from my air tank,and in a short time had fuel coming out of the D318 fuel filter tower. Putting pressure slowly into the topside of the tank doesn't risk stirring up any crud in the bottom of the tank.
Now my major problem is that the operator side clutch on the lower (reversing) shaft is not transmitting any torque. She will not travel forward,swing to the right, or raise the boom. I lowered the boom to where it has slack in the cables, but the clutch will not even take she slack out when I put it in "raise" position.
The operators manual says that there is only one adjustment on those clutches, rotating an adjustment ring in or out to adjust the "throw" of the driving disk against the driven disk. I've moved this in and out, no change to the clutch operation. The friction wedges look to have plenty of thickness left, but they barely touch when the clutch lever is pulled back all the way. Maybe they are worn too short, or the linkage is "bottoming out" and running short on throw.
An experienced crane mechanic from the coal stripmines told me there is another adjustment that the manual doesn't mention, but did't say what it is. Maybe screwing out the rodeyes on the linkage rods to get more throw?
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