A roots blower preventive maintenance schedule lists the checks and jobs done on the equipment at fixed intervals, how long each takes, and in what order of frequency, so problems are found before the roots blower fails. This page gives the schedule used in the PlantOps360 task library for roots blower (y lobe) blower), which follows common industry practice for general-purpose equipment. It is also searched for as rotary lobe blower, positive displacement blower, aeration blower, pneumatic conveying blower.
The maker’s manual and your site safety procedures always come first where they differ. Intervals set by law differ by state.
Roots blower preventive maintenance schedule and checklist
| How often | Task | Estimated time |
|---|---|---|
| Daily | Check discharge pressure, temperature and oil level in both gear and drive end covers | 5 min |
| Weekly | Check intake filter differential pressure; clean or replace as required | 10 min |
| Monthly | Check V-belt tension and alignment; check relief valve and non-return valve | 20 min |
| Quarterly | Check for oil leaks at seals; check silencer condition | 30 min |
| Half-yearly | Change gear and drive end oil | 60 min |
| Annual | Inspect lobes and clearances, timing gears and bearings; replace seals | 240 min |
Roots blower maintenance frequency and yearly workload
At the estimated times, one roots blower needs about 51 hours of preventive maintenance a year. The biggest single job is “Inspect lobes and clearances, timing gears and bearings; replace seals” at 240 minutes, done annual. Multiply by the number of units you have to see the workload for your plant.
| Frequency | Tasks | Time per round | Hours per year |
|---|---|---|---|
| Daily | 1 | 5 min | 30.4 h |
| Weekly | 1 | 10 min | 8.7 h |
| Monthly | 1 | 20 min | 4.0 h |
| Quarterly | 1 | 30 min | 2.0 h |
| Half-yearly | 1 | 60 min | 2.0 h |
| Annual | 1 | 240 min | 4.0 h |
What goes wrong on a roots blower without preventive maintenance
- Lobe and casing wear that lets air slip back
- Gear and bearing oil leaks
- Belt tension and wear
- Relief valve faults
What to watch between services
- Discharge pressure and temperature
- Oil level
- Intake filter pressure drop
Safety and statutory notes for roots blower maintenance
A rotary lobe blower can overpressurise a blocked line quickly. The relief valve must be set and working.
Where a roots blower preventive maintenance schedule is used
This equipment is used in the industries below. Each link opens the preventive maintenance schedule guide for that industry, and the maintenance software page where we have one.
- Preventive maintenance schedule for pharmaceutical plants · maintenance software for pharmaceutical · maintenance software for api bulk drugs
- Preventive maintenance schedule for chemical, fertiliser and petrochemical plants · maintenance software for chemical
- Preventive maintenance schedule for food, dairy and beverage plants · maintenance software for food processing · maintenance software for dairy
- Preventive maintenance schedule for agro, grain, edible oil and sugar plants · maintenance software for sugar and distilleries
- Preventive maintenance schedule for packaging, paper and printing plants · maintenance software for packaging · maintenance software for paper and pulp
- Preventive maintenance schedule for plastics, rubber and polymer plants · maintenance software for plastics · maintenance software for tyre and rubber
- Preventive maintenance schedule for textile and garment mills · maintenance software for textile
- Preventive maintenance schedule for steel, foundry, forging and metal plants · maintenance software for steel and metals
- Preventive maintenance schedule for cement, glass, ceramics and building materials plants · maintenance software for cement
- Preventive maintenance schedule for mines and mineral processing plants · maintenance software for mining
- Preventive maintenance schedule for thermal and hydro power plants · maintenance software for power plants
- Preventive maintenance schedule for water and wastewater utilities
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- Local exhaust ventilation preventive maintenance schedule
Browse the full list of equipment preventive maintenance schedules (317 types).
Run this roots blower schedule in maintenance software
In preventive maintenance software, each row above becomes a recurring task on the asset with its checklist, time estimate and parts. Tasks can be triggered by calendar date, running hours, meter readings or production cycles, each completed task is recorded with the person and date, and a failed check can open a work order. For the method behind it, read the guide to the preventive maintenance schedule, or use the free generator to get a 12-month plan for your whole equipment list.
Build my preventive maintenance schedule (free Excel)
Frequently asked questions
How often should a roots blower be serviced?
In our schedule a roots blower has 6 tasks: 1 daily, 1 weekly, 1 monthly, 1 quarterly, 1 half-yearly, 1 annual. The biggest job is “Inspect lobes and clearances, timing gears and bearings; replace seals”, which is done annual. Always follow the maker’s manual where it gives a different interval.
What is included in roots blower preventive maintenance?
It covers routine checks and jobs such as “Check discharge pressure, temperature and oil level in both gear and drive end covers”, “Check intake filter differential pressure; clean or replace as required”, “Check V-belt tension and alignment; check relief valve and non-return valve”, up to the annual overhaul or inspection. The full list with times is in the table above.
How many hours of maintenance does a roots blower need per year?
About 51 hours per unit per year at the estimated times in our library, including the daily checks done every day. Use it to plan workload, not as a benchmark.
Is there a free roots blower maintenance checklist?
Yes. The table on this page is a ready checklist. The free preventive maintenance schedule generator turns it into a 12-month Excel schedule for your list of equipment, with monthly workload hours.