Mobile Hydraulic Mechanic (MHM):
Fabricates, assembles, services, maintains, and tests mobile hydraulic equipment. The mechanic understands hydraulic symbols, reads system schematics, and is skilled in using hand tools, power tools, micrometers, and testing equipment. All Mechanic certifications require a three (3)-hour written and a three (3)-hour job performance (hands-on) test. If you’re interested in testing for the MHM level certification, registration information can be found here.
Summary:
- Read hydraulic symbols and circuit diagrams
- Use dial calipers and micrometers
- Know various tube fittings and select the proper replacement
- Make up tube assemblies
- Know how to prevent and repair system leaks
- Perform contamination control
- Add fluid to system with filter cart
- Know how, when, and where to take fluid samples
- Aid in system flushing and commissioning
- Use “Target Cleanliness Chart” for each system
- Check condition of hydraulic filters
- Check systems for water
- Make up a crimped hose assembly
- Replace a hose assembly
- Inspect hose applications for twist and minimum bend radius
- Service and charge accumulators
- Assist technicians in start-up and commissioning
- Promote safe working conditions with pressurized systems
Recommended Reference Materials:
Subject Matter Outline