Defcon Brochure

PULVERIZER MAINTENANCE

For every PULVERIZER MAINTENANCE challenge, there is a FORCE.

Defcon means power. And the FORCE means business.

Feel the FORCE and you’re feeling the competitive edge of the power industry’s most comprehensive
pulverizer repair services, with one source covering the full scope of parts pricing, component rebuilding,
and onsite coal pulverizer repair and maintenance. Pulverizer Maintenance - it’s what we do.

By concentrating on one area – Pulverizers – we can provide the highest level of quality and efficiency
available. Our highly experienced Field Crews combined with our specialized tooling and equipment will
provide a quality job, safely completed, with a turnaround that will impress you.

• Mill Overhauls MPS Mill EL Mill CE Mill
• P/A Fan Rebuilds
• Mill P.M. Inspection/Repair
• Motor/Gearbox Replacement
• Mill Roof Replacement
• Feeder Rebuilds
• Emergency Repairs

MPS MILL PREVENTATIVE MAINTENANCE INSPECTIONS: MPS Mills

Preventative Maintenance Programs are essential to maximizing run-time between overhauls, while still
maintaining reliability. Defcon FORCE provides thorough inspections from the raw coal feeder to the
pyrite hopper, then documents findings, AND repairs all deficiencies.

Standard Scope of MPS Inspection: • Pyrite Plows
• Turret Liners • Yoke Air Seals
• Swing Valve – Plates, Seats, • Mill Gearbox
• Lube Oil System
Armatures • Mill Motor/Alignment
• Classifier Assembly • Pyrite Gates/Hopper
• Load Cables/Rods • P/A Fan
• Seal Air Header • P/A Motor
• Spring/Pressure Frames • Wear Profiles
• Spring Tension • Raw Coal Feeder:
• Wear Plates/Thrust Blocks • Belt/Paddle
• Frame Centered/Shimmed • Scraper
• Roll Assemblies • Transition
• Seal Air Piping • Clean-out Pans/Skirts
• Bracket Shields • Grease Lines
• Housing Liners • Gearboxes
• Throat Assembly
• Wedge Bolts
• Wear Profiles

MPS Mills MPS MILL OVERHAULS

Whether it’s a Standard Grinding zone rebuild or a Major Overhaul, Defcon FORCE can guarantee superior
workmanship, above average turnaround, and very competitive project costs. Our crews are highly
experienced in all facets of pulverizer maintenance from the Feeder to the Gearbox. Don’t depend on a
“Labor Broker” for your next Overhaul – Contact Defcon FORCE and See the Difference.

MPS-89 Standard Overhaul: Additional Services:
• R/R Compression Springs • R/R Mill Gearbox / Motor
• R/R Roll Seal Air Pipes • R/R Yoke and Yoke Air Seal
• R/R Roll Wheel Assemblies • R/R Ring Seat
• R/R Grinding Segments • R/R Pressure Frame
• Repair or Replace Throat • R/R Turret Liners
• R/R Housing Wear Plates • R/R Load Cables / Rods
• R/R Pressure Frame Wear Plates • R/R Swing Valves / Shafts / Armatures
• Repair or Replace Classifier and Cone • Mill P.M. Inspections
• R/R Frame Pivot Blocks • Mill Feeder Inspections & Repair
• R/R Pyrite Plows • Pyrite Gate Replacement & Repair
• R/R Swing Valve Seats • PA Fan Repairs
• Inspect Balance of Mill

MPS REPLACEMENT PARTS MPS Mills

Should our Inspection reveal the need for immediate replacement of wear parts, it will not be a problem.
Defcon FORCE stocks a complete line of MPS Pulverizer Replacement Parts.

EL Mills EL MILL PREVENTATIVE MAINTENANCE SERVICES:
• Measure Bolt Diameter
• Inspect Wedge Ring and Bolts
• Inspect Grinding Rings
• Inspect Classifier and Tailing Section
• Inspect Throat Plates
• Inspect Spring Bolts
• Rotate or Add Fill in Balls
• Inspect Springs/Reset Tension
• Inspect Housing and Housing Units
• Inspect Pyrite Relief Gate
• Inspect Seal Ring
• Inspect P/A Fan Blades and Housing

EL STANDARD OVERHAUL SERVICES:
• R/R Springs and Bolt Assemblies
• R/R Top Grinding Ring
• R/R Balls
• R/R Wedge Ring
• R/R Bottom Grinding Rate
• R/R Housing Units
• Repair/Replace Cabbage Cutter as Needed
• Inspect Seal Ring/Replace as Needed
• Inspect Throat Plates/Replace as Needed
• Clean and Inspect Yoke
• Measure Yoke Run Out
• Inspect Relief Gate/Replace as Needed
• Inspect/Repair Louver Section
• Inspect/Repair Cone and Sealing Sections
• Drain, Clean and Fill Gearbox
• Check Backlash on Oil Pump Gearing
• Check Backlash between Pinion and Spiral Bevel
• Inspect P/A Fan Blades and Housing

EL MAJOR OVERHAUL SERVICES:
(Includes All Standard Overhaul Items)

• R/R Thrust and Radial Bearings
• R/R Main Shaft
• R/R Pinion and Spiral Bevel Gears
• R/R Yoke
• Check Yoke Contact
• Blue Gears and Check Contact Pattern
• Shim Gear Shafts as Required
• Align Bearing Plate
• Replace Packing
• Measure Air Seal Clearances

RB-RP-RPS CE MILL OVERHAULS CE Mills

Whether it’s a major overhaul or annual servicing, there
is a certain amount of expertise required to ensure that
your pulverizer maintenance is completed properly and
on-time. Defcon FORCE provides that expertise. We are
experienced in removal/replacement/repair of
the following:

Mill
• Journal Assembly
• Classifier Assembly
• Separator Liners
• Bull Ring Segments
• Vane Wheel Assembly
• Bowl/Hub
• Skirt Assemblies
• Pyrite Sweeps
• Millside Liners
• Separator Top

Exhauster
• Converter Head
• Inlet Dampers
• Whizzers
• Blades/Liners
• Spider
• Side/Periphery Liners
• Bearing Assemblies
• Static Balance
• Outlet Dampers
• Riffle Elements

Gearbox
• Oil Coolers
• Insulation Cover Plate
• Worm Shaft Assembly
• Mill Bottom
• Housing Cover
• Main Vertical Shaft
• Radial Bearings
• Worm Gear Assembly
• Thrust Bearing
• Gear Contact

In-House Services IN-HOUSE SERVICES:

Our in-house repair facilities are specifically designed and outfitted for the rebuilding of Pulverizer Roll
Wheels, Journal Assemblies, and their corresponding machine repairs/replacement parts. Each shop
also maintains 1-2 sets of spare assemblies for use by those plants that do not have spare rolls. Last, but
not least, each shop can build Complete New Assemblies from the “Ground Up.”

See the difference in the way we handle your business:
• Labor Charges do not fluctuate with condition of assembly
• Pulling of Pivot Blocks included
• Bracket Repair included
• Pressure Tests Performed – Results Guaranteed

Defcon size and forceful dominance means that one call does it all.
Put force on your side at 877-771-3533 and www.DefconForce.com.