Maintenance Class Timeline

Here is an agenda for one of the typical classes I teach. They can be on site or at my facility. I also hold classes on general operation of wide belt, profile, and brush sanders which are not brand specific in addition to classes based on application.

One note about the maintenance class is that I only do this at my facility because we actually tear down components of the machine in addition to putting real mechanical and electrical faults in the sander. I think it would be bad if I broke the machine at your facility and not be able to fix the problem.

Comments?

SA550 “Heesemann Belt Sander Maintenance”




DAY 1

8:00 - 8:30 Orientation & Welcome

8:30 – 9:30 Wide Belt Sander Nomenclature

Major Machine Parts
- Contact Roller
- Combi-head
- Segmented Pad
- Pressure Rollers/Shoes
- Graphite/Felt Pad
- Wide Belt/Cross Belt
- Planer Head
- Orbital Head
- Controller
- Electrical Cabinet

Sequence of Machine Operation

Sanding Applications
- Solid Wood
- Veneer
- Sealer

9:30 – 10:00 Abrasive Belt Technology
Wide Belt Abrasive Technology
Types of Abrasives
Grit Designation
Backing Material & Splices
Storage & Handling

10:00 - 10:15 Break

10:15 - 11:30 Sander Set-Up & Operations (Hands-on)
- Mounting Sanding Belts
- Machine Adjustments
- Pre-Settings
- Thickness Settings
- Sanding Belt Speed
- Feed Speeds
- Selection of Activated Heads

11:30 - 12:15 Lunch


12:15 - 3:15 Conveyor Belt Maintenance
Daily Maintenance

Dressing
- With Contact Roller
Ø Precautions
Ø Dress Board Dimensions and Placement
Ø Grit Selection
Ø Procedure
- Without Contact Roller
Ø Precautions
Ø Dress Roller alignment and installation
Ø Grit Selection
Ø Procedure

Bed Removal for Belt Replacement
- Removal Procedure
- Replacement Procedure

3:15 – 3:30 Afternoon Break


3:30 – 4:00 Poly V-Belt Tensioning & Replacement
- Troubleshooting and Replacement
- Installation Procedure

4:00 – 4:30 Wide Belt Sander Safety
Guarding
Belt Condition
Dust Collection
Sparking


DAY 2

8:00 - 8:30 Review & Questions

8:30 – 9:30 Contact Roller Maintenance
Daily Maintenance
Operation and Setup
Dressing


9:30 – 9:45 Morning Break

9:45 – 10:45 Contact Roller Maintenance (cont’d)
Alignment Procedure

10:45 – 11:30 Segmented Pad Maintenance
Daily Maintenance
Operation and Setup
Platen
Repair
Replacement


11:30 - 12:15 Lunch

12:15 – 1:00 Segmented Pad Maintenance (cont’d)
Alignment Procedure
Diagnostics

1:00 – 3:00 Sanding Defects & Troubleshooting

Identification
- Dubbing
- Rounded Edges
- Sand Through
- Snake Lines
- Shadows
- Zig-zag Lines
- Chatter Marks
- Splice Marks
- Polishing
- Dull and Worn Belts
- Burn Marks
- Stock
- Controller & Machine Adjustments
- Sanding Belts
- Others

Corrective Actions


3:00 – 3:15 Afternoon Break

3:15 – 4:30 Controller Vibrations
Machine parameters
Controller screen
Diagnostics
Basic Operations

DAY 3


8:00 - 8:30 Review & Questions

8:30 - 10:30 Machine Controller (hands-on)
Basic Operations
Fault Diagnosis
Machine parameters and their effect

10:30 – 10:45 Morning Break

10:45 – 11:30 Reading Heesemann Schematics
Symbols
Manual Schematic Drawings

11:30 – 12:15 Lunch

12:15 – 3:00 Electrical Troubleshooting (hands-on)
Component Locations
Electrical Cabinet Layout
Real Fault Troubleshooting

3:00 – 3:10 Afternoon Break

3:10 – 4:15 Specific Maintenance
Ordering Parts
Cleaning Machine
Using External Computer

4:15 – 4:45 Conclusion, Exam & Course Evaluation