FLSmidth FLSmidth UMS / TMS at a glance
The Dovient library currently covers 3 published troubleshooting guides for the FLSmidth FLSmidth UMS / TMS, with 21 individual procedure steps distilled from OEM manuals and field experience. On average, a fix on this machine runs 7 steps and roughly ≈1 hr on tools. Complexity is classified as heavy, the average fix on this machine runs multiple hours, touches several sub-systems, and is usually planned work rather than reactive.
Failure modes to watch for
Every guide in the FLSmidth FLSmidth UMS / TMS library lists the candidate root causes its procedure rules out. These are the distinct failure modes we've documented so far, a useful starting point if you don't yet know which specific alarm or symptom you're chasing.
Trunnion seal lip worn through normal service life
Trunnion surface scored or corroded under the seal, preventing lip contact
Seal clamp ring loose allowing the seal to shift and break contact
Mill running at positive internal pressure pushing material through any seal gap
Pinion alignment drifted from the design position causing uneven girth gear tooth contact
Ball charge below the design fill level causing the balls to cascade rather than tumble
Loose or broken liner bolt allowing liner movement
Girth gear backlash outside specification from tooth wear
Tools you'll need most
These tools are referenced most often across the FLSmidth FLSmidth UMS / TMS troubleshooting guides. If you service this equipment regularly, keep them on the cart.
Sources we cite for this machine
Every procedure on Dovient is cross-checked against published sources. These are the references cited most often in the FLSmidth FLSmidth UMS / TMS guides.
- cited 3×
FLSmidth FLSmidth UMS / TMS Cement / Ball Mill general technical documentation
FLSmidth
Every published guide for this machine
How to diagnose elevated vibration on a FLSmidth UMS / TMS ball mill
Elevated ball mill vibration is most often caused by girth gear or pinion alignment drift, incorrect ball charge, or a loose liner. Check the pinion backlash and ball charge level first.
How to investigate separator efficiency drop on a FLSmidth UMS / TMS mill circuit
A drop in separator efficiency means fines are being sent back to the mill and the circuit is over-grinding. Check the rotor speed, separator feed air volume, and reject vanes before adjusting the circuit.
How to fix a trunnion seal leak on a FLSmidth UMS / TMS ball mill
A leaking trunnion seal lets cement dust contaminate the bearing and the work area. Replace the seal during the next planned stop. Inspect the trunnion running surface for scoring before fitting a new seal.
Frequently asked questions
What are the most common FLSmidth FLSmidth UMS / TMS problems?
The most frequently reported issues on the FLSmidth FLSmidth UMS / TMS include how to diagnose elevated vibration on a flsmidth ums / tms ball mill, how to investigate separator efficiency drop on a flsmidth ums / tms mill circuit, how to fix a trunnion seal leak on a flsmidth ums / tms ball mill. Each has a step-by-step troubleshooting guide on this page.
How long does a typical FLSmidth FLSmidth UMS / TMS repair take?
Repair time depends on the failure mode. Routine adjustments typically take 30-90 minutes; component replacements run 2-4 hours; major overhauls can take a full shift or more. The procedures linked above list estimated time per problem.
Can these procedures be done by an in-house technician?
Most procedures on this page are designed for a qualified in-house maintenance technician with the listed tools and parts. Procedures requiring OEM-only access (firmware updates, factory calibration) are flagged in the safety warnings.
Are these guides verified against OEM documentation?
Every procedure cites the source manuals, service bulletins, or published references it draws from. The FLSmidth FLSmidth UMS / TMS guides cross-check against 1 source(s) cited above.
Images on this page sourced from Freepik. Credits: BackyardProduction, vershinin89.