Scheduled maintenance never replaces a complete pre-trip or post-trip inspection.
PUBLIC EQUIPMENT REFERENCE
Equipment Maintenance Resources
Shareable maintenance guidance organized by the equipment used across the JASKO fleet. Open an equipment type below for the public reference summary and source links.
Public, unlisted resource: this page is available by direct link but is not included in the main navigation.
HOW TO USE THIS PAGE
The exact equipment always controls.
Mileage, engine hours, reefer hours, and calendar limits use the earliest applicable threshold.
Known defects are evaluated based on safety, compliance, reliability, and cargo risk.
If the applicable OEM or installed component requires earlier service, use the shorter interval.
MAINTENANCE BY EQUIPMENT TYPE
Choose the equipment.
Each heading has a permanent link that can be copied and shared directly.
01 Volvo VNL / D13Engine service, idle review, chassis lubrication, and condition reporting.
- Use the exact Volvo maintenance schedule for the model year, engine, oil specification, duty cycle, and installed configuration.
- JASKO normal-duty reference: 60,000 miles or 1,700 engine hours, whichever comes first, only when the unit qualifies for the applicable Volvo Premium VDS-5 program.
- If engine idle time exceeds 30%, review the next-lower Volvo interval. A common reference is 45,000 miles or 1,400 engine hours, whichever comes first.
- Chassis lubrication and front-end inspection remain separate from the engine-oil interval. Warning lights, leaks, overheating, steering concerns, brake concerns, or abnormal operation require prompt reporting.
02 Peterbilt 579 / Cummins X15Duty-cycle-based engine service, filtration, and condition checks.
- JASKO planned maximum engine PM: 50,000 miles or 1,250 engine hours, whichever comes first, only when the applicable Cummins duty-cycle schedule permits it.
- The shorter Cummins interval controls when duty cycle, fuel economy, idle/PTO percentage, engine configuration, oil specification, or operating conditions require earlier service.
- Inspect the fuel/water separator and air-filter restriction or condition. Dust, heat, and operating environment may require earlier attention.
- Report warning lights, fluid loss, abnormal smoke, overheating, unusual noise, or drivability concerns immediately.
03 Utility 3000R Refrigerated TrailerPre-trip inspection, six-month checks, and annual periodic inspection.
- Before each trip, inspect tires and wheels, wheel-end leaks, brakes, ABS, air leaks, suspension, lights, mudflaps, landing gear, rear impact guard, doors, seals, interior, air chute, bulkhead, floor channels, reefer mounting, and the TIREMAAX indication.
- The six-month trailer inspection includes suspension, ride height, air and electrical systems, ABS, TIREMAAX, body, doors, seals, roof, walls, floor, drains, and reefer mounting.
- The twelve-month service includes the FMCSA Periodic Inspection under 49 CFR 396.17 plus the full trailer PM and full reefer PM when practical.
- Follow the installed wheel-end and wheel/hub manufacturer procedures after tire, wheel, hub, or brake work. Do not substitute a generic re-torque or repack interval.
04 Carrier Transicold X4 7300Dry checks, full reefer PM, heat readiness, and pre-trip operation.
- JASKO Dry Check: every 6 months or 1,500 reefer engine hours, whichever comes first.
- JASKO Full Reefer PM: every 12 months or 3,000 reefer engine hours, whichever comes first.
- Before each load, run the applicable pre-trip inspection and review alarms, oil, coolant, leaks, belts, battery, electrical condition, airflow, temperature performance, mounting, and telematics.
- Before sustained summer heat, clean and inspect the condenser and radiator and verify airflow, cooling-system condition, belts, hoses, battery, door seals, air chute, and pull-down performance.
- Carrier component-specific requirements continue to be tracked under the exact applicable OEM manual.
05 Thermo King Precedent S600Reefer inspections, full PM, temperature performance, and OEM requirements.
- JASKO Dry Check: every 6 months or 1,500 reefer engine hours, whichever comes first.
- JASKO Full Reefer PM: every 12 months or 3,000 reefer engine hours, whichever comes first.
- The JASKO 12-month Full PM remains the company maximum even when an applicable Thermo King program permits a longer calendar interval.
- Before each load, run the applicable pre-trip inspection and check alarms, fluids, leaks, belts, battery, airflow, defrost, sensors, temperature performance, mounting, and telematics.
- Use the exact Thermo King-approved oil, filter, coolant, and component requirements for the installed unit.
06 Hendrickson TIREMAAX PROAutomatic tire-pressure control, physical inspection, and approved target pressure.
- TIREMAAX PRO supports automatic tire-pressure control, but it does not replace physical tire inspection or an accurate cold-pressure check.
- Inspect the indicator, controller, air lines, fittings, wheel-end hoses, wiring, mounting, and leaks.
- The approved JASKO cold target pressure remains TO BE ESTABLISHED from the actual tire model, size, load range, axle load, tire-manufacturer load/inflation data, and Hendrickson requirements.
- Do not use a guessed fleet-wide PSI setting. Report continuous inflation, an active warning, a damaged hose, or unequal tire condition immediately.
07 Right Weigh Onboard ScaleAxle-weight guidance, inspection, verification, and calibration.
- Use the exterior analog gauge as an axle-weight management and tandem-positioning aid. It does not replace a certified scale when certified weight is required.
- Every six months, inspect the gauge, enclosure, push-pull valve, air lines, fittings, mounting, leaks, and gauge response.
- Verify accuracy against a certified scale and recalibrate only when needed.
- Calibration requires a loaded vehicle, preferably near legal axle-group weight, on a level surface after the suspension stabilizes. Do not calibrate empty.
- Recheck after suspension, height-control-valve, or scale repairs, or whenever accuracy is questionable.
08 Auxiliary Power Unit (APU)Configuration-specific service, operating checks, and fault reporting.
- Follow the exact APU manufacturer, model, serial number, engine-hour, and calendar schedule installed on the tractor.
- During routine checks, inspect oil and coolant levels where applicable, leaks, belts, hoses, mounting, exhaust condition, battery connections, fuel supply, HVAC output, and warning indicators.
- Keep air intakes, condenser surfaces, and service access areas clean and unobstructed.
- An APU can reduce tractor idle time, but its presence does not replace reviewing actual engine idle percentage for tractor maintenance decisions.
- Report smoke, fuel odor, exhaust damage, overheating, fluid loss, abnormal noise, or shutdown faults before continued use.
09 Immediate Defect ReportingCondition overrides the maintenance calendar.
- A scheduled interval never replaces a complete pre-trip or post-trip inspection.
- Report warning lights, active alarms, leaks, tire or wheel damage, brake or steering concerns, overheating, smoke, unusual noise, poor refrigeration performance, damaged doors or seals, or any condition that may affect safe operation or cargo protection.
- Do not wait for the next scheduled PM when equipment condition requires earlier evaluation or repair.
- For an emergency, call 911. Use the approved JASKO reporting channel for non-emergency equipment and safety concerns.
