Army MOS · Engineering
91J Quartermaster and Chemical Equipment Repairer
Overview
A Quartermaster and Chemical Equipment Repairer performs or supervises maintenance at the unit, direct support, and general support levels. The repairer works on chemical equipment, quartermaster machinery, forced air heaters, and special purpose equipment.
Core Skills
- Mechanical and electrical troubleshooting
- Maintenance of pumps, valves, and fluid systems
- Chemical and decontamination equipment repair
- Preventive maintenance and inspections
- Technical manual and schematic interpretation
- Use of diagnostic and test equipment
- Work order and maintenance documentation
- Safety and hazardous materials handling
- Inventory and parts management
- Teamwork and task coordination
Civilian Software & Tools
- Microsoft Excel
- Microsoft Office software
- Microsoft Outlook
- Microsoft PowerPoint
- Microsoft Word
- SAP software
- BIT Corp ProMACS PLC
- Extranet Machine Tools Suite
Civilian Career Paths
- Mechanical Engineering
- Facilities Management
- Environmental Engineering
- Project Management
Training & Development
Getting Started
- Military Tactical Wheeled Vehicle (TWV): Heating, Ventilation & Air Conditioning (HVAC) (MIL7) · Funded · Promotion points · STAR
- Military Tactical Wheeled Vehicle (TWV): Preventive Maintenance Checks & Services (PMCS) (MIL8) · Funded · Promotion points · STAR
- Medium/Heavy Truck: Preventive Maintenance Inspection (PMI) (T8) · Funded · Promotion points
- Parts Specialist: Medium/Heavy Truck Parts Specialist (P1) · Funded · Promotion points
Career Growth
- Section 608 Technician Certification (Universal)
- Section 608 Technician Certification, Type II · Funded · Promotion points
- Section 608 Technician Certification (Type III) · Funded · Promotion points
- Certified Maintenance and Reliability Professional (CMRP) · Funded · Promotion points
- STAR HVACR Mastery
Also Common
- Medium/Heavy Truck: Heating, Ventilation, and Air Conditioning (HVAC) Systems (T7) · Funded · Promotion points
What the Work Involves
- Repair or maintain the operating condition of industrial production or processing machinery or equipment.
- Repair or replace broken or malfunctioning components of machinery or equipment.
- Clean, lubricate, or adjust parts, equipment, or machinery.
- Disassemble machinery or equipment to remove parts and make repairs.
- Reassemble equipment after completion of inspections, testing, or repairs.
Related Occupations
- Maintenance Workers, Machinery
- Electric Motor, Power Tool, and Related Repairers
- Multiple Machine Tool Setters, Operators, and Tenders, Metal and Plastic
- Mobile Heavy Equipment Mechanics, Except Engines
Typical preparation for these civilian roles: vocational training or an associate degree.
Formerly Known As (Legacy)
Retired codes that converted into 91J. Each legacy page documents the cited history.
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Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.
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