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E801-S Belt ScraperE801-S
APPLICATIONS
- Specially designed for easy fitment to all belts up to 750 mm wide.
- Can be installed where there is not enough space for other scrapers.
- Not suitable for mounting directly on head pulley.
- The double row of overlapping blades makes this scraper suitable for applications where fine or wet material is being conveyed.
FEATURES
- Patented V-base torsion holders greatly simplify servicing Blades and torsion holders can be changed without removing the scraper from its mounting.
- All components can be made from corrosion resistant materials.
- The torsion holder is designed to prevent material build-up on the scraper.
- In severe cases where wet and fine material passes between the blades in the front row this material is removed by the overlapping rear row of blades.
E 801-S SCRAPER - PARTS LIST - REF. DRG. BS 009-B PART
| PART NO. | ITEM | CODE | |
| 2 | 60 deg SS 'V' Track | 2/9.3 | |
| 3 | Blade - Tungsten
Carbide Triplex Tungsten Chrome Tool Steel Stainless Steel |
2/6.8 2/6.9 2/6.7 2/6.6 |
|
| 4 | Torsion Holder | 2/5.3 | |
| 5 | End Stop | R-End Stop | |
| 6 | Mounting Spindle | Size 3 | 2/1.3 |
| 7 | Standard Square Mounting | Size 3 | 2/3.3 |
| 9 | 3 Piece Carrier Shaft | Size 3 | 2/8.2.3/3P |
| 10 | Optional Off-set Plate | Size 2 | 2/8.2.22 |
NOTE! Always quote scraper belt width.
E 801-S SCRAPER - ASSEMBLY INSTRUCTIONS
1. Referring to the parts list check that the correct parts and quantities have been supplied for the model and belt width of scraper ordered.
2. Normally scrapers are supplied with Blades (3), torsion holders (4) and Stoppers (5) assembled and fixed to the carrier shaft centre piece. If this is not the case, assemble these components as shown.
3. Depending upon the installation access (see Installation Guide paragraph 1) one or both of the carrier shaft end pieces may now be attached. Check whether the optional off-set plates are to be used and if so ensure that they are correctly assembled. Ensure that all nuts and bolts are firmly fastened.
4. Remove the clamp plates from the Square Mounts (7).
5. Check that spindle nuts move freely on Spindles (6).
6. Proceed with installation as per installation guide.
E 801-S SCRAPER - STANDARD MOUNT - INSTALLATION GUIDE - REF. ORG. BS 011-A
DIMENSION TABLE
| BELT WIDTH | SIZE CODE | NO. OF BLADES | MAX C1 | MIN C1 | MAX C2 | MAX C3 | Z | |
| FRONT | REAR | |||||||
|
400 |
Size 2 |
4 |
3 |
335 |
235 |
60 |
40 |
520 |
|
450 |
Size 2 |
4 |
4 |
335 |
235 |
60 |
40 |
620 |
|
500 |
Size 2 |
5 |
4 |
335 |
235 |
60 |
40 |
620 |
|
600 |
Size 2 |
6 |
5 |
335 |
235 |
60 |
40 |
720 |
|
750 |
Size 2 |
6 |
6 |
335 |
235 |
60 |
40 |
820 |
E 801S INSTALLATION INSTRUCTIONS
1. Refer to the Assembly Instructions, Parts list and Drg BS 009-B to confirm that all the necessary parts have been supplied and that the scraper is correctly assembled. Depending upon access space it may be easier to attach one or both of the Carrier Shaft End Pieces once the scraper is in position.
2. Referring to the dimensions given in the table above select the optimum position for the scraper and mark the location of the access apertures.
3. With reference to Drg. BSO11-A select the most convenient location for the mounting spindle. There are four possible positions but in all cases ensure that the spindle remains at 900 ( 100) to the belt surface. If no suitable location can be found to attach the spindle foot either to the chute or onto the conveyor structure the optional off-set plates may be used as shown in Drg BS 011-A. Note that off-set plates are not supplied as standard but must be ordered separately.
4. Fix the Spindles (6) firmly in position.
5. Check that spindle nuts move freely.
6. Locate square mounts on spindles as shown and remove clamp plates from Square Mounts.
7. Check that carrier shaft End Pieces and Carrier Shaft Centre Piece are firmly bolted together.
8. Position carrier shaft underneath the conveyor belt centrally with reference to belt edges and head pulley.
9. Attach Clamp Plates to assembled carrier shaft as shown.
Note: Assemble bolts, washers and nuts finger tight only.
10. Position carrier shaft and attached clamp plates on square mount as shown and fit bolts, washers and nuts. Tighten finger tight.
Note: It may be necessary to adjust the location of the square mount on the spindle by means of spindle nuts so that the blades are clear
of the belt
surface.
11. Lay a straight edge on the top face of the Carrier Shaft End Piece and rotate the assembled carrier shaft and clamp plates in the slots in the clamp plates until the straight edge is parallel to the belt surface.
Note: This step must be done carefully to ensure that the angle of the blade to the belt is correct.
12. Tighten bolts and Nuts. Do not over tighten!
13. By means of spindle nuts adjust the scraper towards the belt surface until all the blades contact the belt surface.
14. Adjust the scraper one further full turn of the spindle nuts towards the belt.
15. Push all blades free of the belt surface and allow them to return to the belt surface under the torsion holder tension.
Note: 1. The blades should now rest on the belt surface 7 to 12 mm away from their original contact point.
Note: 2. At this stage check that the blades in both front and rear rows contact the belt with equal pressure. If necessary make fine adjustments by slightly slackening nuts and rotating the complete carrier shaft the required amount. Re-tighten nuts.
16. Check that all blades can move freely.
17. Check that all nuts and bolts are firmly fastened.
18. Start the conveyor and check if all blades are moving freely and scraping in full contact with the belt surface.
Note: Repeat steps in Note: 2. # 15 above, taking care to stop the belt before slackening any nuts or making any adjustments. It is essential that these steps be carefully carried out to ensure both front and rear rows of blades contact the belt with equal pressure.
