Sounds like something may have broke on the left side brake. Did anyone take the brake drum off and look in there? If 1,742 hours are the total orginal hours they can't be worn out. Also the brakes are self adjusting and don't need anyone to adjust them unless something is broken. Was it grinding/plusing before the PM?
If you only run it 10 hours per year, maybe only get a PM every 2 years to change the oil.
I would call a different forklift service company and ask them to take 20 minutes and pull the brake drums for inspection and give you a quote to fix just what is wrong with the brakes.
The 7fgcu15's I work on with 25,000 hours still have good shoes.
Did the 45 minute, $275, PM include all new filters? How much of it was labor and travel?
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