SPECIAL REPORTS – MOBILE EQUIPMENT 44 HYDRAULICS & PNEUMATICS July/August 2026 www.hpmag.co.uk Are you recruiting for Fluid Power Professionals? Use our Job Board & Appointments page The simplest route to your next recruit Contact: Sales Manager – Andrew Jell 01732 370347 – andrew.jell@dfamedia.co.uk JOB BOARD AHEAD actually perform more reliably than a larger engine spending most of its life lightly loaded. “You sometimes see dumpers being used more like wheelbarrows, carrying material short distances before being unloaded manually rather than using the hydraulic tipping system, which means the engine is not working hard enough to maintain the temperatures needed for efficient regeneration.” The company says repeated start-stop operation can further compound the issue. On some sites, machines may be switched off multiple times per hour to reduce unnecessary idling, preventing engines from maintaining the temperatures needed for passive DPF regeneration. “You can end up in a difficult position operationally,” Gavin added. “The engine may need to remain running to complete a regeneration cycle, but site practices understandably discourage unnecessary idling. That means regeneration cycles can be interrupted repeatedly, increasing the likelihood of forced regeneration events and avoidable downtime.” DiPerk has also seen similar issues emerge where machinery consistently operates below intended load profiles for extended periods. In one example, a machinery manufacturer reduced regeneration-related issues after moving from a larger engine operating at low load to a smaller engine better matched to the application. The company says the challenge is particularly pronounced within rental fleets, where machines may operate across widely varying applications and duty cycles. “Stage V was probably the biggest operational shift the diesel engine industry has seen in decades because the aftertreatment system became just as important as the engine itself,” Gavin said. “Operators now need to think not just about engine power, but about how equipment is actually being used.” For further information please visit: https://www.diperk.com/en-gb
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