Updated: November 18th, 2008 12:32 PM EDT
Better Welding Maintenance Strategies Enhance Contractor Competitiveness
The True Downtime Cost (TDC) becomes extremely apparent in situations where one welding machine going down affects the productivity of other people and equipment, such as on this cross-country pipeline.
To boost overall equipment efficiency (OEE), select engine drives that cost less to maintain, are easier to service and are more reliable.
Good maintenance practices allow welding equipment to survive in harsh environments.
Dan Chapman, owner of CMW Welding, only takes a single Spectrum 2050 plasma cutter with him, even when working on distant job sites, because he can rely on uninterrupted performance in any weather.
One of the best ways to prevent maintenance-related downtime is to select equipment with fewer, more reliable and better-protected components. For example, Miller houses the control board for its PRO 300 and Big Blue engine drives in a water-tight Vault, shown here submerged - and still operating - in a fish tank
The lean TPM concept goes for beyond the normal oil change, filter change and Productive Maintenance procedures.
Miller Electric Mfg.
When looking to boost welding output, contractors and engineering firms historically added more welding equipment and hired more welders. With the chronic shortage of qualified operations and tighter budgets, these tactics are now options of last resort. Instead of hiring and spending capital, today's leading-edge companies boost welding output by implementing a Total Productive Maintenance (TPM) program to increase competitiveness.
In some circles, TPM also means Total Process Management, Total Productive Manufacturing or even Teamwork between Production and Maintenance. Whatever the acronym stands for, the objectives of a cutting-edge TPM program are they same. TPM enables a company to:
- Increase output/productivity without increasing the size of its welding fleet
- Meet deadlines easier and avoid outsourcing welding
- Conserve capital or free it for other uses
- Increase profit margins (which in turn can enable pricing flexibility if necessary)
- Improve cross-functional teamwork and communication
- Empower associates to not just solve welding equipment problems, but also to eliminate the source of the problem
Three Types of Maintenance
Maintenance expert Ross Kennedy, president of the The Centre for TPM (www.ctpm.org.au), notes that there are three levels of maintenance: frontline care, technical maintenance and strategic maintenance1.
On an engine driven welding generator, frontline care would be changing the oil and filters at recommended intervals. Technical maintenance would be having the engine drive serviced by a mechanic to fix a problem. Strategic maintenance is about minimizing maintenance costs. This could be through such actions as selecting the simplest, most reliable welding machines possible or standardizing your fleet on the fewest models possible (where component commonality reduces parts inventory and service training costs).
Printer Friendly