Abraham Annan Nzeh
Cat Technician
Ablekuma Oduman,GW
Summary
Proactive and dedicated maintenance engineer specializing in rebuilding CAT engines, with expertise in Individual Clutch Modulation (ICM) and Electronic Clutch Pressure Control (ECPC) transmissions. Proficient in schematic interpretation, testing, and adjustment, with a strong commitment to safety and environmental standards across mining, marine, and manufacturing sectors. Proven track record in maintenance planning, scheduling, and management strategies that effectively address unplanned maintenance challenges while ensuring compliance with OEM standards. Skilled in training indigenous staff, managing maintenance budgets, and operating heavy-duty equipment under tight deadlines while maintaining high-quality standards.
Professional maintenance expert prepared for leadership roles, offering significant experience in facility management. Skilled in preventive maintenance, troubleshooting, and safety compliance. Strong focus on team collaboration and achieving results, adaptable to changing needs. Reliable with proven ability to enhance operational efficiency and reduce downtime.
Overview
33
33
years of professional experience
Work History
Maintenance Manager Group
Nguvu Mining Limited
01.2022 - 01.2025
- Maintaining Fleets availability and reduce down time production
- A positive, can do attitude.
- An uncompromising attitude to safety with a zero harm expectation
- An exceptionally strong work ethic
- Consistently seeking better ways to do things
- Able to work positively with people from many diverse cultures and beliefs
- A good listener and communicator
- Thorough knowledge of maintenance practices, planning, fleet and personnel management
- Extensive practical experience in a wide range of both Underground and Open Cut equipment
- General knowledge of crushing, screening and conveyor systems
- Familiar with Perkins, Cummins Calterm, Volvo and diagnostic programs
- Excellent hands on supervisory experience
- Develop and deliver positive structural change in management systems.
- These are the following list of machines.
- 1. CAT Dump Truck 777D,777 E
- 2. CAT Excavator 6015, 6020, 345D, 390 B.D, F & 320D
- 3. CAT Wheel Loaders 992K 988K.980H, 966H, 928H
- 4. CAT Wheel Loaders R2900G R1700G, R1300G Underground
- 5. CAT Dozers D9Gc D9R D8R
- 6. CAT Motor Graders 14G, H
- 7. CAT 930H, 930K
- 8. CAT Water truck 740E, 773
- 9. Liebherr T-264 Dump Truck Battery Electric
- 10. Volvo Wheel Loaders 350 LH, L220F
- 11. Volvo ADT Truck A40D, E, F, G
- 12. Mercedes Benz Arcos Trucks (Haulage)
- 13. Sandvik DP 1500Dpi
- 14. Atlas Copco L7, L8
- 15. Normets Utimce LF 600, MF 100, Spraymec1050 WP, Utilift540, 630X, AARD UV80
- 16. Sandvik Solo Drill Rigs underground
- 17. Sandvik Jumbo Drill Rigs Drill Rigs Underground
Equipment Inspection, Maintenance and Support Manager (West Africa)
BCM (INT)
01.2017 - 01.2021
- Rebuilding of machines frames reinforcements, buckets, blades and undercarriages tracks groups, linkages, booms and sticks of old machines which have been parked for a long time at the workshop for five years and above at the main workshop and taken flight to sites.
- Inspecting the breakdown machines at all BCM sites in West Africa for quick inspections, analysing cost and rebuilding to reduce cost effectiveness, increase machine availability, reduce downtime and increase production at site.
- These are the following list of machines:
- 1, CAT 777B, C, D, F, G , Dump Trucks
- 2, CAT D10R, D9R, D8R, Track Dozers
- 3, CAT Scrapers 631,773B MEGA Water Buzzer
- 4, CAT 6030, 6020, 5130, 390F, 390DL, 385B, 345DL, 345BL Excavators
- 5, CAT 992G, 990, 988K, 988B, 966F, Wheel Loaders
- 6, CAT 16M, 14G, 14H Motor Graders
- 7, Pegson 110/800 Premier Mobile Crushers
- 8, Pegson Auto mix Cone Crushers
- 9, Aggregate Conveyor Cement Batcher Plant
- 10, Terex, Kato, Tadano Crane’s 50-70Tons
CAT, Specialist
ArcelorMittal Iron Mining (Liberia)
01.2013 - 01.2015
- In charge of entire Tokadeh Mining site
- Preventive maintenance planning ensures the availability of machines to perform and reduces downtime.
- Troubleshooting heavy duty equipment using caterpillar service tool Electronic Technician (ET) to perform field service jobs, diagnose faults and code’s, testing, tuning, adjustment, and alignments of major components to meet manufacture specification cat spec, Service Information System (SIS) to identify parts and ordering of overhauling, services kits and spare parts to rebuild major components and change out, schematic reading code numbers for diagnostics.
- Components resealing, such as hydraulically electronic unit injection pumps (HEUI), Main hydraulic control valve, cycle drive’s, swing motors, piston pumps, steering, tilt, lift, and boom cylinder’s, breaks final drive’s and rebuilding Cat ACERT engines and transmissions, Assembling track shoes and links and Reactivating breakdown machines for more production.
- Apply technical knowledge and expertise to achieve individual and team performance goals.
- Demonstrate a continuous improvement mind-set, sought out opportunities, make suggestions and collaborates with team members to work more efficiently and improve results.
- Also to discuss pending issues that might affect planned work for the coming shift and make necessary adjustments / changes as required mining plans.
- Machines worked on include:
- CAT Excavators 390DL, 349DL, 325DL, 320DL.
- CAT Wheel Loaders 988H, 980H, 966H.
- CAT Track Dozers D9R, D8R, D6T.
- CAT Motor Graders 14K, 14M, and 14H
- CAT Backhoe 422F, 420E
- CAT Skid Steer 226B3, 2236
- CAT Vibratory Roller CS-56
Maintenance Engineer
Global Parts & Mining Services Ltd
01.2012 - 01.2013
- Company Overview: GOLD FIELDS GHANA LTD, TARKWA SITE (WR)
- Preventive maintenance planning, ensuring the availability of machines to perform at waste dumps site, land clearing fields maintaining some of the haul roads, Service Information System(SIS) to identify parts and ordering of service kits.
- Troubleshooting heavy duty equipment using caterpillar service tool Electronic Technician (ET) to diagnose faults, perform field service jobs, components change out track shoes, links, cutting edges, end bits and sprockets. Tilt, lift cylinders resealing, rebuilding of final drives engines and transmission.
Maintenance Engineer
Jesus Open Doors (JOD)
01.2011 - 01.2012
- Company Overview: ADAMUS MINING SITE-ESSIAMA, (WR)
- Preventive Maintenance planning, field services and component rebuilding final drives, engines, fuel injection pumps, resealing swing motor hydraulic piston pumps, tilt, lift, stick, cylinders, using Service Information System (SIS) identify parts and ordering and using the caterpillar service tool Electronic Technician (ET) for field diagnose faults and to maintain machine availability.
- Maintaining the trucks used for hauling the ore to feed the crusher and using the Motor Grader, Backhoe, and Dozer to maintain haul roads, clearing new sites roads and pushing waste at the dump site.
- Machines worked on include:
- CAT Track Dozers, D9R, D8R, D8N, D6M.
- CAT Motor Grader 14H.
- CAT Backhoe 428C
- CAT 825C Soil Compactor
- CAT Excavator 330BL
- Volvo Articulated Dump Truck
- Mercedes Bens and Astra Tipper Trucks
Senior Supervisor
Boss Tech Engineering
01.2010 - 01.2011
- Company Overview: TARKWA AMS BANKYIM REBUILDING SHIP (WR)
- Complete inspection was done on the machines. The caterpillar service tool Electronic Technician (ET) and Integrated Management System (VIMS) were used to download all the information in the ECM memory, for reports and records.
- Complete disassembly of caterpillar machines checking cracks down to the frame, using the Service Information System (SIS) for ordering major components and schematic drawing to identification parts and hydraulic hoses.
- Assembling the machine from scratch, writing daily performance reports on individual equipment for the customer and providing advice on how to cut down cost.
- Ensuring machines were built to CAT specification; Jobs were completed within the specified time schedule and delivered to site.
- Machines worked on include:
- CAT Dump Trucks 777F, 777D, 777C
- CAT Water Bowers 773E, 773B
- CAT Motor Graders 16M, 16H, 14M
- CAT Track Dozers D9T, D9R, D8R
- CAT Wheel Loaders 992G, 988G, 966G, 950G
- CAT Integrated Tool Carrier (IT) 28, 966G
- Liebherr Excavator 988, 984C, 994
- Pantera (1500) Drilling Machines.
maintenance Manager
BCM (INT) Mauritania Copper Mines
01.2009 - 01.2010
- Company Overview: MCM) FIRST QUANTUM Akjoujt
- Contractor to the mother company First Quantum (MCM) at the Akjoujt, mining site in charge of CAT, 385C excavator maintaining and servicing equipment on site for availability for production.
- Organizing safety and production meetings both workshop and pit with three shift crews as a team leader, to reduce downtime and availability for production.
- Writing daily reports and sending mails to my superiors.
- Preventive Maintenance plan.
- Periodically daily inspection on machine defects.
- Midlife servicing maintenance.
- Changing of top, down rollers, bucket pins and seals.
- Reinforcing of the bucket and teeth’s changing.
Maintenance supervisor
Bays water Construction And Mining In SA
01.2005 - 01.2010
- Company Overview: (BCM) Tabakoto, Luolo Mining (SOMILO) Site, Bamako rebuilding shop (MALI), TABAKOTO / LUOLO SITE
- Maintaining heavy duty equipment machines on site for availability and reducing downtime to meet targets for production. Chassis overhaul on 777D (AGC) 3508 dump truck engines and Atlas Copco drilling machines L7/ L8 C11 & 13 (ACERT) engines Head crack /overheating.
- Writing daily and shift, reports, sending mails, risk assessment and safety meetings
- Machines worked on include:
- 1. CAT Dump Trucks 777D, 777C, 777F
- 2. CAT Water Bowers 773B
- 3. CAT Wheel Loaders 992G, 988H, 980G, 966H
- 4. CAT Wheel Dozers 844D
- 5. CAT Track Dozers D10R, D9R, D9H
- 6. CAT Integrated Tool Carriers (IT) 966H, 966F
- 7. CAT Telehandler TH350B
- 8. CAT Excavators 5130 Front Shovel, 330BL
- 9. Liebherr 994C, O&K RH140, Komatu pc1500 Excavators
- 10. Atlas Copco L8, L7, Tam rock drilling machines
Senior Supervisor
Pierro Engineering & Mining SERVICE Co. LTD (PEMS)
01.2008 - 01.2009
- Company Overview: GOLD FIELDS, GHANA LTD, TARKWA SITE
- Contractors on site for supporting workshops on breakdown machines and changing service exchange major components, midlife servicing, rebuilding, installing and commission of machines within time frame, to reduce downtime and availability of machines on targets.
- Field service jobs in pits and haul roads downloading and uploading information diagnosis, using the caterpillar service tool Electronic Technician (ET) to upgrade the machines ECM parameters to Cat spec, and reports writing.
- Using the Service Information System (SIS) for parts ordering and identification.
- Attending Gold fields maintenance planning and safety meetings, discussing special tools handling, equipment’s position and risk assessment procedures.
- Machines worked on include:
- CAT Dump Truck 777F, 785C, 785D, 789C, 793C
- CAT ADT Dump Trucks 735C, 735E, 740C
- CAT Wheel Loaders 966GII, 980GII, 988GII, 992G
- CAT Wheel Dozers 834K, 844G, 844K
- CAT Dozers D9R, D10R, D10T
- CAT Motor Graders 16H, 16M
- CAT Water Bowers 773E, 777F
- CAT Integrated Tool Carrier (IT) 966GII, 980G
- CAT Telehandler TH 83
- Excavators O&K RH 140
- Excavators Liebherr 994, 99C
Leading Hand / Technician
AFRICAN MINING SERVICE (AMS)
01.2004 - 01.2005
- Company Overview: BANKYIM REBUILDING SHOP (WR)
- In charge of major components rebuild/overhaul/refurbishment, using of Service Information System (SIS) for ordering parts, special /fabricating tools (FT)for777C, D and 777F, 773B, 992G, D10T, D9R, 992G, 16H, 14H,C10, C11(ACERT) Turbocharger’s and Fuel Pumps engines, Transmissions power train , Torque Convertors, Control Valves Differential Assembly, Front Hubs, Front and Rear Suspension, Wheel Stations and Breaks, Hoist, Tilt, Lift, Stick, Boom, Steering Cylinders and Liebherr 994C Excavator Stick and Boom cylinders resealing. Components after rebuilding sent to AMS sites, Tarkwa, Damang, Chirano, Kenyasi sites for commission on machines using the cat Electronic Technician tool (ET) troubleshooting testing adjustment reports and downloads analysis diagnostics, Status, Events & Codes and hydraulic pressure gauges check efficient and effective to Cat spec.
Leading Head / Technician
AFRICAN MINING SERVICE (AMS)
01.2003 - 01.2004
- Company Overview: TARKWA GOLD FIELD site (WR)
- Maintaining the equipment on site, availability to meet production target, Troubleshooting diagnose faults in the field with the CAT service tool (ET) to download, analysis, diagnostics, status, event & codes for quick rectification on the machines with my crew as part of team work to maintain the equipment availability.
- Machines worked on include:
- CAT Dump Trucks 777B, 777C, 777D, 777F
- CAT Wheel Loaders 950H, 966 HII, 988H, 992G
- CAT Wheel Dozers (TIGER) 690B, 844C
- CAT Track Dozers D8R, D9R D10R
- CAT Integrated Tool Carrier (IT) 28, 966 FII
- CAT Landfill Compactor 826B
- CAT Motor Graders 16R, 16H
- Liebherr 984, 994C
- Pantera Drilling (1500)
- Grove Cranes 50 & 70 Tons
Trainee / Technician
TRACTOR & EQUIPMENT GHANA LTD
01.1992 - 01.2002
- Company Overview: Accra (Mantrac)
- Tremendous apprentice training in caterpillar workshop and rotation in all components rebuilding section and field / marine service (Fishing Vessels and Oil Tankers ships), Two years in Caterpillar Training School Iron Presentation Theoretical and Practical works on machines to Qualify as CAT Technician.
- Course Content: System Operation Test and Adjustment.
- Computer – Caterpillar Electronic Technician (ET) Service Information System (SIS) Vehicle Integrated Management System (VIMS) Electronic Control Module (ECM) (SIMS) Reports Writing.
- Schematics – Reading, Drawings, Lines, Symbols, Colour Codes Wires and Numbers
- Electricals / Electronics- Switches, Fuses, Circuits, Wire Colour Codes, Input and out Sensors, Solenoids and Magnetic Pick up.
- Engines–Engine Block Identification, Materials, Overhauling Kits, Types of Cylinder Heads, Pistons, Rings Bearings, Crankshafts, Camshafts, Liners, Drives Gear and Driven Gears.
- Cooling Systems- Radiator Tanks and Core Types, Water Pumps, Blow In and Out Fan Blades, Coolant Hoses, and Type of Thermostats / Regulators.
- Powertrain – Torque Convertors, Torque Divider, Clutches Discs, Plates, springs, Impellers, Turbines, Stators, Input and out Shaft, Planetary Gears, Sun Gears, Housing, Differential Axles.
- Hydraulics –Gear Pumps, Vane Pumps, Steering Pumps, Scavenge and Charging Pumps, Piston Pumps, Types of Hydraulic Control Valves, Spool Valves and Relief Valves.
- Breaking Systems – Air Governor, Air Dryer, Air Compressor, Air Lines, Purge Valves, Kits, Wet and Dry disc.
- ACHIEVEMENTS:
- In charge of small components in the engine bay rebuild section to work effectively efficiently, recommendation decision, Reports writing and tracking of job history to improve results.
- As a team, we archived a West Africa / Asian Caterpillar Certified Engine Rebuild Certificate from Caterpillar Peoria Illinois (USA) year 2000.
- Assembling of New Machines at Mining sites:
- Billiton Bogoso Gold Mine (BBG) Ghana Australian Gold Mine (GAG) Iduapriem Ltd
- CAT Dump Trucks 773B 1. CAT Dump Trucks 773B
- CAT Water Bowsers 773B 2. CAT Wheel Loaders 980B, 988B
- CAT Wheel Loaders 980B 988B 3. CAT Motor Graders 16H
- CAT Motor Graders 16G 4. CAT Track Dozers D9N, D10N
- CAT Track Dozers D9N, D10
- Teberebie Gold Mine (USA)
- CAT Dump Trucks 777B, 785C, C
- CAT ADT Trucks 730B
- CAT Motor Graders 16G
- CAT Track Dozers D8N, D9N, D10N
- CAT Excavators 345B, 5230 Front Shovel’s
Education
City & Guilds - Motor Vehicle Technician PII
University of Mines and Technology (U MaT) GH
01.1995
City & Guilds - Motor Vehicle Technician P1
University of Mines and Technology (U MaT) GH
01.1994
No Degree - Liebherr France (Colmar)
Liebherr T-264 Dump Truck Battery Electric
TarkwaSafety ISO 4500:2018 - Mali (Tabakoto)
Segala Mining Corporation
10.2022
Certificate - Sandvik DP 1500i Technical Training
Sandvik Mining and Construction Ghana Ltd
12.2021
Technicians for Africa Certification - undefined
Global Dealer Learning (Caterpillar)
02.2019
Certificate - undefined
Arcelor Mittal Iron Mining (Liberia) CAT, Specialist
01.2015
Certificate - undefined
Africa Mining Service (AMS), Bankyim Site
01.2006
Certificate - undefined
Africa Mining Service (AMS), Tarkwa Site
01.2004
Certificate - undefined
Tractor & Equipment (Training Course) Accra Head Office
01.1999
Testimonial - undefined
Tractor & Equipment (Trainee), Accra
01.1994
Skills
- Expert in CAT major components rebuild works such as 3516,3512,3508,3432,3427,3412,3408, Mechanical and Electronically HEUI, MEUI, ACERT Engines, Power Plant / Marine Engines Powertrain as; Transmission, Torque Convertors , Differential Assembly ,Wheel Station final Drive and Breaks, Heavy Hydraulic Cylinders, CAT ET technical data downloaders analysis and reports, general troubleshooting testing and adjustment
- Well-developed communication and interpersonal skills, Demonstrated leadership and interdependent team development skills, Strong maintenance foundation including a sound technical knowledge on HME Maintenance Management, Testing and Adjustment, CAT SIS,VIMS,ET, and ECM technical data downloads analysis, testing, monitoring, diagnosing and maintenance planning skills
- Equipment troubleshooting
- Equipment inspection
- Computerized maintenance management system
- Safety monitoring
- Deadline management
- Decision-making
- Team leadership
- Predictive maintenance
- Safety protocols
- Maintenance planning
- Preventive Maintenance
- Project management
Accomplishments
- Conversion of one Mercedes Benz truck to a water bowser, hydraulic actuated pressure feed, electronically control water spray and pressure wash kits in addition with gravity water supply system for active mining pit usage, Converting of one CAT D9H engine to 988H Wheel Loader engine, Reactivating one CAT 16G Motor Grader, one CAT 844D Wheel Dozer, CAT 330BL Excavator and two CAT 777D Dump Trucks for production.
- In charge of small components in the engine bay rebuild section to work effectively efficiently, recommendation decision, Reports writing and tracking of job history to improve results. As a team, we archived a West Africa / Asian Caterpillar Certified Engine Rebuild Certificate from Caterpillar Peoria Illinois (USA) year 2000.
PERSONAL DETAILS
Languages Spoken: English, Basic French, Nzema, Fante, Twi, Ga and (Bambara Mali)
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Timeline
Maintenance Manager Group
Nguvu Mining Limited
01.2022 - 01.2025
Equipment Inspection, Maintenance and Support Manager (West Africa)
BCM (INT)
01.2017 - 01.2021
CAT, Specialist
ArcelorMittal Iron Mining (Liberia)
01.2013 - 01.2015
Maintenance Engineer
Global Parts & Mining Services Ltd
01.2012 - 01.2013
Maintenance Engineer
Jesus Open Doors (JOD)
01.2011 - 01.2012
Senior Supervisor
Boss Tech Engineering
01.2010 - 01.2011
maintenance Manager
BCM (INT) Mauritania Copper Mines
01.2009 - 01.2010
Senior Supervisor
Pierro Engineering & Mining SERVICE Co. LTD (PEMS)
01.2008 - 01.2009
Maintenance supervisor
Bays water Construction And Mining In SA
01.2005 - 01.2010
Leading Hand / Technician
AFRICAN MINING SERVICE (AMS)
01.2004 - 01.2005
Leading Head / Technician
AFRICAN MINING SERVICE (AMS)
01.2003 - 01.2004
Trainee / Technician
TRACTOR & EQUIPMENT GHANA LTD
01.1992 - 01.2002
City & Guilds - Motor Vehicle Technician P1
University of Mines and Technology (U MaT) GH
Safety ISO 4500:2018 - Mali (Tabakoto)
Segala Mining Corporation
Certificate - Sandvik DP 1500i Technical Training
Sandvik Mining and Construction Ghana Ltd
Technicians for Africa Certification - undefined
Global Dealer Learning (Caterpillar)
Certificate - undefined
Arcelor Mittal Iron Mining (Liberia) CAT, Specialist
Certificate - undefined
Africa Mining Service (AMS), Bankyim Site
Certificate - undefined
Africa Mining Service (AMS), Tarkwa Site
Certificate - undefined
Tractor & Equipment (Training Course) Accra Head Office
Testimonial - undefined
Tractor & Equipment (Trainee), Accra
City & Guilds - Motor Vehicle Technician PII
University of Mines and Technology (U MaT) GH
No Degree - Liebherr France (Colmar)
Liebherr T-264 Dump Truck Battery Electric
Hobbies and Interests
Interest: Listening Music and Lung Tennis Playing
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