Spring14 Miles

Last week at Maritime I was put on a job to help finish up an interesting project. The customer wanted a stern thruster installed on his catamaran so he came up with a design that articulates down into the water when he wants to use it then can be retracted while under way via hydraulic rams. Below is a picture of it retracted (I didn't get a picture of it lowered). My coworker and I had to make some calls and figure out the valve body orientation (via assembly numbers), along with other details, due to a lack of info provided with the components. In the end we got it working correctly. In the BTC shop I have been continuing to learn about engine assembly and disassembly. In particular, I have been learning to use some measuring devices I haven't used in the past such as a bore gauge. Next week I will post pictures of the engine disassembles and the corresponding measurement info.  

w: 35.5

t: 260

Spring14 Miles

Last week at BTC, my group and I began to measure and record necessary values on the Mack E7 and started the reassembly process. At Maritime, I was put on a project diagnosing a stiff steering issue. Long story short, it was the power steering assist valve body. Throughout the process of getting to that conclusion, I followed the OEM specifications to test the different components, learning about the procedure along the way. Overall it was a very educational task.

w: 39.5

t: 224.5

Testing power steering pump pressures.

Spring14 Miles

Last week my group and I started the disassembly of a Mack E7. I learned how to pull cylinder liners and what can go wrong in the process. At maritime I was a assigned to repack two shaft stuffing boxes on a vessel. The post side went just fine with no eyebrows raised. I noticed the starboard side had major pitting and if simply repacked would have leaked again. Also the pitting has created a weak point so if the operator was to accidentally hit a rock (happens more often then one would think), it would most likely shear clean off at that point creating huge problems. The customer was notified and is taking preventative maintenance measures (new shaft) to avoid a disaster down the road.

w: 42.5

t: 185

Shaft corrosion

Spring14 Miles

Last week I learned a bit about identifying gear wear patterns on Volvo outdrives. I learned what the different patterns indicate and what possible parts are failing due to the wear patterns. I also learned a great deal about semi truck and trailer wiring and the different components involved from our electrical final last week.

w: 38

t: 142.5

Forward and reverse gears in a Volo DP drive

There was major pitting on the gears in the drive above....

Lower drive gears in said drive