Journeyman - Machinery Maintenance Mechanic

Essential Responsibilities

Repair machinery, mechanical or electrical equipment. Examine machines and mechanical equipment to diagnose source of trouble. Dismantle or partly dismantle machines and perform repairs that mainly involve the use of hand tools in scraping and fitting parts. Replace broken or defective parts with items obtained from stock; order the production of a replacement part by a machine shop or send the machine to a machine shop for major repairs;

prepare written specifications for major repairs or for the production of parts ordered from machine shops. Reassemble machines and make all necessary adjustments for operation. Converse with equipment operators to ascertain problems with equipment before breakdown, and to determine if breakdown is due to human error or mechanical problems. Test faulty equipment and apply knowledge of functional operation of electronic units and systems to diagnose cause of malfunction.

Test electronic components and circuits to locate defects. Replace defective components and wiring and adjust mechanical parts. Align, adjust, and calibrate equipment according to specifications. Calibrate testing instruments. Maintain records of repairs, calibrations, and tests. Enter information into computer to copy program from one electronic component to another, or to draw, modify, or store schematics. Read blueprints, wiring diagrams, process sheets, and assembly and schematic drawings, and receive verbal instructions regarding work assignment.

Align and assemble parts such as leads, coils, wires, tabs, and terminals into housing. Route and lace cables. Install components and parts such as switches, coils, transformers, relays, transistors, and semiconductor circuits on chassis, circuit boards, panels, and other units. Route and attach wires and connectors to form circuitry and connect assembly to power supply sources, switch panels, or junction boxes.

Attach hardware and seal assembly. Examine parts for defects such as pinholes or chips. Test operate unit to locate defects, measure performance, determine need for adjustment, and verify specified operation. Replace defective components and wiring. Calibrate unit according to specifications. Enter information on production records, logs, and other report forms. Repair defective units rejected by inspection or test personnel. Install and test a variety of electrical lines and circuits to components, devices, and fixtures in military shelters and vans, e.g., distribution boxes, monitoring panels, time and temperature relays, pressure and motor switches, lighting, fans, receptacles, etc.

Install wire mold, raceways and/or conduits and fittings, replace or install wires by pulling wire through wire mold or conduit and connecting to electrical fixtures or components, etc. Disassemble, repair, troubleshoot, and/or replace wire mold, wires, and electrical components and devices. Build or fabricate and wire phase meter boxes, power distribution boxes, and other meter boxes as needed. Perform disassembly and assembly work in a number of shelters and vans.

Disassembly work includes removing various types of radio equipment, teletype equipment, etc., from racks; unscrewing, removing and tagging the racks; removing raceways, lights, and/or cable if required; replacing rusted bolts; preparing inside shelter for painting by taping and masking areas identified for painting; removing rotted wire, etc. Assembly work involves installing lights, replacing nuts and bolts, installing equipment racks, etc.

Participate as a member of a team in the repair and installation of equipment both in-house and on TDY assignments. Perform all other position‑related duties as assigned or requested.

Shop environment, in which mechanical equipment is operated, is loud and noisy, and some pieces of equipment have exposed moving components. Must be able to stand and bend for long periods. Must be able to push and test vehicles and heavy objects. Routine lifting up to 50 pounds, regular handling, grasping, kneeling and carrying, and constant use of vision and mental alertness is required.

Occasi…