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Specialty repair · Roots blowers
Roots Blower Repair in Fontana
Roots rotary lobe blowers move air for wastewater plants, pneumatic conveying, vacuum systems and process lines across Southern California — and when clearances open up, they move less air for more power until the lobes touch. LA Trucks and Tractors rebuilds Roots blowers at our Fontana shop at 14166 Whittram Ave: lobes, timing gears, bearings and seals measured as one system, clearances reset to specification, and the blower test-run before release.
Specialty repair · Roots blowers
How Roots blowers wear — and what we do about it
Blowers that reach our bench most often show lobe and case clearance growth, timing gear wear that lets lobes drift toward contact, bearing fatigue from continuous duty, and seal leakage. At teardown we record lobe-to-case and lobe-to-lobe clearances, gear backlash, bearing condition and shaft wear before anything is quoted — then renew bearings and seals as a set, restore or manufacture worn parts in-house, re-time the lobes, and verify clearances through a full test run.
Brands we serviceRootsFalkFlenderSEW-EurodriveHansenNordSumitomo
Roots Blower Repair in Fontana · Fontana, CAOne Fontana shop for machining, gears and rebuilds
Machining, gear work, rebuilding and testing all happen at 14166 Whittram Ave, Fontana, CA 92335. Regular hours are Monday to Friday, 6 AM to 5 PM, with 24-hour rush and emergency service every day of the year. Talk to John Clark's team on (800) 821-3404 or (949) 400-2937, or write to [email protected], for a free quote.
- Roots rotary lobe blower teardown, inspection and rebuild
- Lobe and case clearances measured and reset to specification
- Timing gears renewed and lobes re-timed
- Bearings and seals replaced as a set, blower test-run
- 24-hour rush and emergency service, 365 days
Our 8-step repair process
A clear path from the first call to a tested component or machine returned to work.
Inspection
Disassemble and evaluate the complete failure.
Photos & video
Document condition and findings for a clear repair conversation.
Repair quote
Define the recommended work and quote before proceeding.
Approval
Confirm scope, urgency and the practical path forward.
Manufacturing
Machine, weld, rebuild or reverse engineer required components.
Testing
Verify operation and workmanship before release.
Shipment
Return the completed component or equipment to service.
Frequently asked questions
What are the signs a Roots blower needs a rebuild?
Falling airflow or vacuum, rising power draw, new rattle or whine, and heat are the usual warnings — clearance and timing measurements confirm it at teardown.
Can you re-time lobes after timing gear wear?
Yes — timing gears are renewed or manufactured in-house, lobes are re-timed, and clearances are verified through a test run before release.
Do you offer rush repair?
Yes — 24-hour rush and emergency service runs every day of the year. Call (800) 821-3404 or (949) 400-2937.
Related services
Emergency breakdown? Call the 24-hour rush line.
(949) 400-2937Schedule service or open a repair order
Request a service call.
Include the make, model, symptoms, location, urgency and preferred service time. Your details open in a text to John so you can review them before sending.