He said it right at the dock last Tuesday, showed me his own wear patterns from 20 years back. Cut my RPMs by 400 and now I'm getting twice the life out of a $1200 part. Anyone else had a veteran give you a fix that saved you that much?
I spent about 6 months running my old setup with just a standard suction nozzle and it worked fine for soft stuff but anything with gravel or clay would clog me up constantly. Last spring I finally swapped to a proper sand pump from a guy out of Baton Rouge and I could clear the same amount of material in half the time. The suction is way more consistent and I don't have to stop every 15 minutes to clear a blockage. My back thanks me too since I barely have to fiddle with the nozzle anymore. You lose a little bit of fine material compared to the old method but the speed gain makes up for it ten times over. Has anyone else made that switch and noticed the same thing with wear on the pump impeller?
Pulled up a whole section of old telephone line that wasn't on any of the utility maps. Found out from an old-timer at the yard that the company that laid it went bankrupt in the 80s and nobody ever marked it. Anyone else run into abandoned utilities that weren't on the survey?
Used to eyeball it with a string line every morning and took 20 minutes, now I'm done in 5 and haven't had a wobble in 3 months - anyone else make that switch?
The vibration was different for about 30 seconds before I heard it hit the pump. Now I check every single tooth with a feeler gauge before I start a shift. Anybody else had a tooth come loose mid-dredge?
Was pulling sand near the shipping channel when the suction dropped to nothing. Had to pull the whole assembly to find a chunk of old mooring line wrapped around the impeller shaft. Anybody else ever deal with debris jamming mid-dredge?
After 12 years running a 12-inch cutterhead on the Mississippi near Baton Rouge, I swapped my 3/4-inch wire rope for 5/8-inch chain last month and now I can feel every bottom change through the boom, but has anyone else noticed more wear on the sheave pins with chain instead of wire?
I was picking up a new impeller for our 12-inch Ellicott at the supplier in St. Louis last week and an old guy getting a gasket set just said that out of nowhere. Made me think about how we run our 2008 model with barely any downtime while the new digital controlled rigs on the site are always getting electrical gremlins. Has anyone else noticed the older machines being more reliable than the newer fancy ones, or is it just me?
I was running a job on the Mississippi backwater near Vicksburg last Tuesday when my pump hour meter ticked over to 500. I slapped my own forehead because I totally forgot to swap the hydraulic fluid at the 400 hour mark like the manual says. So I shut everything down right there, drove 45 minutes to the nearest parts house, and spent $180 on new fluid and a filter. I guess my point is that milestone numbers can sneak up on you. Anybody else ever forget a routine service interval and pay for it later?
That stuck with me during a job last week on the Mississippi near Baton Rouge where I was fighting a sandbar and finally stopped staring at my depth readout and just felt the drag change through the throttle, has anyone else had moments where you ignored the instruments and trusted what you felt in the controls?
Working a dredge out near Gulfport last month on a tight channel. Hit a sand pocket and the whole rig started vibrating like crazy. This guy Leo who's been on the water 40 years yells at me to back the pump down to 70%. I thought he was nuts, but I did it. Vibration stopped, material kept flowing, and I didn't burn up the cutter motor. Has anyone else had luck running partial throttle in soft ground or is this just a Gulf Coast thing?
Went with cable after my mentor in Mobile said hydraulics were too finicky for small jobs. Still running that same rig 15 years later, but I'm curious if anyone else made the switch and regretted it.
I was talking to an old timer at the dock last Tuesday after we wrapped up a job on the Missouri River. He said most guys run their swing cable way too tight because they think it gives them better control on the drag head. But he pointed out that if you can bounce a quarter off the cable, it's gonna snap on you when you hit a rock shelf. I took his advice and measured my tension with a simple load cell gauge I borrowed from a buddy. Dropped it from 2,400 pounds to 1,800 and my cable life jumped from 3 months to almost 5. Anyone else ever mess with their swing cable tension based on feel instead of numbers?
I was out on the Mississippi near Baton Rouge, fighting this cutterhead that kept binding up. Old mechanic came out to look at something else, watched me for 5 minutes and said why is your swing cable so tight you're fighting yourself. Loosened it a notch and suddenly the whole rig moved smooth. Felt like an idiot. All those days of burning extra fuel and fighting the controls for nothing. Anyone else have a setup thing they overlooked for way too long?
Was working a creek cleanup near the old mill pond last Thursday, hit a hidden cable that wrapped around the cutterhead so bad it took me 4 hours to cut free with a torch. Has anyone else dealt with surprise underwater junk that stops everything cold?
Met a guy named Hank at the coffee shop near the Port of Savannah last Tuesday. He's been dredging since the 70s. I was complaining about burning through a set of teeth in 3 weeks and he just laughed. Told me to drop my RPMs by half and let the weight of the boom do the work. Said I was spinning too fast and churning up air instead of digging. I tried it on a tight channel job yesterday and the difference was crazy... less vibration, way cleaner cut. Felt like fighting the machine less. Has anyone else had their mind changed by ignoring a setup manual?
Old timer at the yard yesterday told me I was running mine too loose and showed me the wear pattern on his 3-year-old pump housing, now I'm thinking I've been costing myself downtime for years - anyone else ever get a second opinion on something basic that made you feel dumb?
Had a clay plug lock up the swing pipe on a job near Mobile last week. Instead of pulling the whole section apart, I ran a pressure wash nozzle backward through the cleanout port and it broke free in about 4 minutes. Any of yall ever try that or is there a smarter way?
I was working a little creek off the Mississippi near Baton Rouge. About 2 hours in, I heard this grinding noise and the cutterhead just stopped spinning. Checked the lube points and found water in the housing. Had to pull the whole unit and swap the bearing. Cost me about $400 for the part and a full day of downtime. Anyone else seen this happen after heavy rain?
We were pulling good material on a routine cut when the vacuum dropped to nothing. Took 45 minutes to find a 3 pound mudfish wedged right in the elbow joint. First time I ever had to pull a fish out of a dredge line. Has anyone else dealt with wildlife jamming up their system?
I was by the Elizabeth River docks and saw how the dredge spoils were layered differently than what we get up in the Chesapeake. Has anyone else seen a big difference in how sediment settles based on the water source?
He told me I was running my cutterhead too fast and my suction too tight, said I was boiling the water before it even hit the pump. I dropped the RPM by about 40 and cleared the line in under an hour. Has anyone else had better luck slowing down the cutter instead of speeding it up?
I bought this fancy seal kit from a supplier online for $120 because it claimed to be heavy duty and last twice as long. Installed it on my dredge pump in Chesterfield last Monday, and by Friday it was already leaking slurry everywhere. Turns out the rubber compound wasn't rated for the sediment mix we pull up around here. Called the company and they blamed it on me not checking the spec sheet close enough. Anyone else get burned by a pricey part that just fell apart?
I was cutting a new channel through some compacted silt in a narrow marina slip in Tampa. My usual go-to is a 12-inch cutterhead, gives me the volume. But the slip was so tight with pilings every 8 feet I couldn't swing the bigger head without bumping into stuff. Swapped out for a 10-inch mid-job and man, the difference was wild. The smaller head let me get in there and trim the edges clean, plus I didn't have to keep backing up to reposition. Took me about 2 hours less than I budgeted. Anyone else find a smaller cutterhead actually works better in certain spots?
We had a persistent clog in the 12-inch line that wouldn't clear with normal pressure, so my deckhand suggested we briefly reverse the flow for 5 seconds. It worked perfectly and saved us two hours of downtime. Has anyone else tried a reverse pulse on a cutter suction line?