Ronald S.
Gumahad
Purok 10, Tabon, Bislig City
Mobile Phone: 0920-500-13-93
Email Address: ryuk_21@yahoo.com
Work Experience
Electrician/Junior Fitter
Maxima Machineries Incorporated
Hizon Building,kilometer 9, Barangay Pampanga Sasa,Davao City
August 31,2011 – Present
Service Department
Exclusive Distributor of KOMATSU heavy equipment in the Philippines.
Assigned in field which handles all heavy equipment jobs (revenue and non-revenue)
in accordance to procedures and quality policy of the company.
Equipment/Machine Maintained.
Excavators: Komatsu PC200LC-8, PC200LC-7
Bulldozers: Komatsu D85EX-15, D65EX-15
Compactor: Bomag BW211D-40
Duties and Responsibilities:
1.Performs Pre- delivery Inspection/Delivery Inspection/Receiving Inspection.
2.Performs Preventive Maintenance Service (PMS).
3.Check, analyze, repair & troubleshoots failure on work equipment and machinery with
the use of basic diagnostic tools and troubleshooting guide
4.Performs Removal and Installation of the ff:
Vehicle Electrical System( e.g. Lighting system, starter, alternator, control panel and
other electrical/electronic instruments).
5.Performs Testing and Troubleshooting of Common rail fuel injection system,Electro
hydraulic Transmission system,Machine electrical/electronic system
6.Responsible for the accurate reports & submission to immediate supervisor (Service
Dispatch, Service Reports & Acceptance Reports,Liquidation of expenses with SJO
number,Technical Service Information/ Failure Analysis Report).
7.Observed safety precautions in the work area in all aspect of operations.
8.Responsible in maintaining 5’s & functionality, cleanliness and orderliness of working
area & assists / equipment.
9.Perform such other related duties as may be assigned by my immediate superior.
H.E field electrical/instrumentation maintenance technician
Semirara Mining Corporation
June 4, 2008 – March 29, 2010
Semirara, Caluya Antique
Mobile Maintenance Department
Troubleshooting electrical/electronic system
In heavy hydraulic mobile mining machineries
Perform fast electrical/electronic troubleshooting in running repair maintenance department in the
following units.
Dumptrucks: komatsu HD 785-5,785-7,325-6, Catterpillar 777D
Graders: komatsu GD 825A-2
Bulldozers:komatsu D375A-5 ,D375-5R,D155-6
Excavators: komatsu PC 1250.PC 2000, Terrex RH120,PC200-8.PC3000-6
Duties and Responsibilities:
1.Conduct routinely maintenance check on equipments following job prepared by
immediate supervisor.
2.Inspect physical condition of electrical/electronic parts on various components of the
equipments during maintenance operation.
3.Install and uninstall electrical/electronic instruments.
4.Interpret and analyze the root of trouble in electro hydraulic circuit diagram at the
minimum time as possible (defective sensor, short circuits, busted fuse, defective relays
and breakers, defective alternator and starter motor, defective controllers, open circuit,
rewiring, testing electronic instruments, defective batteries).
5.Gives recommendation/suggestion to immediate superior regarding equipment
condition.
6.Report to immediate superior regarding any damage and trouble encountered in
electrical and electronic instruments.
7. Writes technical reports that are basis for major recommendations and repairs
8. Conduct basic preventive maintenance of different machines.
9. Perform substantially related tasks that are assigned.
10. Maintains proper housekeeping within designated area.
11. Observe safety precautions in the work area in all aspects of operation.
Computer Technician (On the job training)
Mindanao State University-Iligan Institute of Technology
October 2007 – March 2008
Computer Electronics Engineering Technology Laboratory
Computer repair and software installations
Seminars and Trainings Attended/Certificates
Heavy Equipments Basic Electricity
Maxima Machineries Inc.,Valenzuela, Metro Manila, Philippines
Siemens S7-200 Basic and Advance PLC Programming and Applications
MSU-IIT, Iligan City, Philippines
MRSP, Mechatronics and Robotics Society of the Philippines (member)
MSU-IIT, Iligan City, Philippines
Process Control Instrumentation
MSU-IIT, Iligan City, Philippines
Pneumatics and electro - Pneumatics
MSU-IIT, Iligan City, Philippines
Electro Hydraulics Instrumentation and Controls in heavy equipments
Semirara Mining Corporation, Semirara, Caluya, Antique, Philippines
TESDA Mobile Electrician Certificate of Competency
Semirara Mining Corporation, Semirara, Caluya, Antique, Philippines
TESDA NC2 Instrumentation
Tubod, Iligan City, Philippines
Educational Background
Mindanao State University – Iligan Institute of Technology
Iligan City, Philippines
Bachelor of Science in Industrial Automation and Mechatronics (S.Y. 2010-2011)
Electronics Engineering Technology (S.Y. 2007-2008)
Personal Skills
Basic knowledge of the following:
Electrical background in heavy mining machineries
Pneumatics and Electro – hydraulics
Programmable Logic Controller ( Siemens Simatic S7-300 Graph)
Computer Programming
Computer repair and software installations
Microcontrollers and system applications (8051)
Personal Background
Age : 24 yrs. of age
Status : Single
Nationality : Filipino
Birth date : November 21, 1987
Religion : Roman Catholic
Height : 5’4”
Weight : 61 kg
Home Address : Purok 10, Tabon, Bislig City, Surigao Del Sur
Character References
Engr. Erman Marajas
Department Chairman, IACET
MSU-IIT, Iligan City, Philippines
09192284688
Engr. Danilo Adlaon
Department faculty, ESET
MSU-IIT, Iligan City, Philippines
09177066155
Romulo A. Serra
Foreman, Mobile Maintenance Department
Semirara, Caluya, Antique Philippines
09205872694
