Page 234 - Peterson 85 Years and Going Strong

RETROFITS VS. REPOWERS
RETROFITS apply after-market, diesel emissions- control strategies to existing engines. The most common is a DPF, or Diesel Particulate Filter, a
giant filter that attaches to the exhaust pipe. In the beginning, DPFs were used extensively since the newer-tiered engine technology hadn’t been devel- oped yet. When it was, DPFs were still the cheaper alternative so people installed them on everything. It turned out DPFs were not the silver bullet everyone had hoped for. There were no one-size-fits-all solu- tions. And a competitive after-market field created a whole new layer of complications.
REPOWERS switch out older, dirty engines for newer, cleaner engines. The new emissions-friendly engines come in tier designations—Tier 1, Tier 2, Tier 3, Tier 4 interim, and Tier 4 final. Each repower requires custom fabrication since the newer engines have larger cooling packages, which take up more space.
TIERS VS. YEARS
TRACTORS (Off-road vehicles) • Tier0(pre-1996)
• Tier1(1996–2003)
• Tier2(2004–2007)
• Tier3(2006–2011)
• Tier4interim(2008–2012) • Tier4final(2013–2020)
TRUCKS (Drayage)
• Level 1 (2000 model standard)
• Level 2 (2004)
• Level 3 (2007)
• Level 3 Plus (2010)
Repower in San Leandro shop
PETERSON’S OWN FLEET COMPLIANCE
Besides helping customers, Peterson has had its own fleet to contend with—a large inventory of new and used off-road equipment, a fleet of Ide- alease trucks, a large-equipment rental fleet, the Cresco rental fleet, and 335 parts and service vehi- cles. “We have to keep a close eye on all our fleets and make sure we’re turning over our vehicles and meeting the required emissions targets,” says Stickney. “So we’re up against the gun too.”
In the early days, some suggested Peterson was in cahoots with CARB to make money off our
232 | PETERSON: 85 YEARS AND GOING STRONG