Who shows up
You're calling the mechanic,
not a dispatcher
RES Heavy is Russell Schwartz, a master diesel technician with more than 30 years on trucks, diesel engines, and heavy equipment.
Factory trained by Caterpillar, Cummins, and Isuzu. Deep experience across Detroit Diesel, including the classic two-strokes, plus electrical diagnostics and hydraulics. Russ has owned and operated mobile repair businesses for decades, supporting Penske, South Coast Water District, commercial fleets, construction and utility equipment, and CHP compliance repairs.
When you call RES Heavy, the person who answers is the person who shows up, with the experience to diagnose it right the first time, and the truck to fix it on the spot. More about Russ and the credentials behind that.
- Master diesel technician, 30+ years
- Factory trained: Caterpillar · Cummins · Isuzu
- J1939 CAN & electrical diagnostics
- EPA Section 608 Universal & 609
- Commercial Driver License (CDL)
- Family owned & operated