O
Oil Level Sight Glass
Sight glass for quick oil checks.
Onboard Calibration System
System enabling real-time calibration of flow meters through the controller. Simplifies compliance checks before a new season’s dressing campaign.
Oil Return Filter
Filter placed on the hydraulic oil return line. Protects the reservoir from contamination and extends oil change intervals.
Onboard Diagnostics Port
Diagnostic connector allowing laptop access to vehicle ECUs. Used by UK service engineers for fault finding and firmware updates.
Oil Separator (Water)
Trap removing oil from water recirculation.
Oil Temperature Gauge
Gauge displaying hydraulic-oil temperature on the control panel. Prevents overheating and indicates when the system is ready for heavy use.
Oil-Cooler Thermostat
Valve regulating flow through the hydraulic-oil cooler. Keeps fluid within the 40–70 °C optimum temperature range for long component life.
Oil-Drain Safety Tray
Tray positioned beneath oil filters during draining. Captures hot oil safely and prevents environmental spills.
Oil-Filter Pressure Switch
Switch monitoring differential pressure across the oil filter. Illuminates warning lamp when filter approaches blockage threshold.
Oil-Fired Burner
Common burner for bitumen sprayer heating.
