E701-T Belt Scraper

E701-T

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 scraper can be fitted with torsion arm mountings to accommodate different belt thick nesses on the same conveyor, excessive belt movement due to pulley eccentricity anc any deflection caused by using the scraper on a reversible belt.

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 patented torsion holder is designed to prevent material build-up or ingress into the spring unit.
• Integral deflector skirts ensure that material is carried away from the scraper unit.

E 701-T SCRAPER - PARTS LIST - REF. DRG. BS 008-B PART

PART NO.	ITEM		CODE
1	Carrier Assembly	Size 1 Size 2	2/8.1.1 2/8.1.2
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 1 Size 2	2/1.1 2/1.2
8	Torsion Mounting	Size 1 Size 2	2/2.1 2/2.2
9	Optional 3 Piece Shaft	Size 1 Size 2	2/8.1.1/3P 2/8.1.2/3P
10	Optional Off-set Plate	Size 1&2	2/8.1.20

NOTE! Always quote scraper belt width.

E701 T SCRAPER - ASSEMBLY INSTRUCTION

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. If this is not the case, assemble these components as shown.

3. Depending upon the installation access (see Installation Guide paragraph 1) an optional 3 piece shaft may be required. Then 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 torsion mounts (8).

5. Check that lock nuts move freely on Spindles (6).

6. Proceed with installation as per installation guide.

E 701 T SCRAPER - TORSION MOUNT - INSTALLATION GUIDE - REF. ORG. BS 013

DIMENSION TABLE

BELT WIDTH	SIZE CODE	NO. OF BLADES	MAX C1	MIN C1	MAX C2	MAX C3	Z
400	Size 1	3	305	210	90	0	1200
450	Size 1	4	305	210	90	0	1200
500	Size 1	5	305	210	90	0	1200
600	Size 2-3	6	370	270	40	30	1500
750	Size 2-3	7	370	270	40	30	1500
900	Size 2-3	9	370	270	40	30	1500

INSTALLATION INSTRUCTIONS

1. Refer to the Assembly Instructions, Parts List and Drg BS 008-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 necessary to use an optional 3 piece carrier. Then one or both of the carrier shaft end pieces can be fitted 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 Drgs overleaf select the most convenient location for the mounting spindle. There are two 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 013-2. Note that off-set plates and 3 piece shafts 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 torsion mount (8) on spindles as shown and adjust set screws until they just touch the torsion arm. Pre-tension the torsion mount by tightening set screws four full turns.

7. Check that carrier shaft end pieces and carrier shaft centre piece are firmly bolted together (3 piece shaft only).

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 torsion mount as shown and fit bolts, washers and nuts. Tighten finger tight.
Note: It may be necessary to adjust the location of the torsion mount on the spindle by means of the spindle nuts so that the blades clear the belt surface.

11. Lay a straight edge on the top face of the carrier shaft end 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 surfaces 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. Check that the set screws are not touching the torsion arm. If they are still in contact with the arm continue to adjust the scraper towards the belt in increments of half a turn of the lock nuts until the set screws just clear the torsion arm. Push all blades free of the belt surface in the direction of belt travel after each adjustment, allowing them to return to the belt surface under the torsion holder tension.

16. Slacken set screws four full turns and tighten lock nuts.

17. Check that complete scraper assembly can move freely up and down on torsion mounts and that all blades can move freely.

18. Check that all nuts and bolts are firmly fastened.

19. Start the conveyor and check if all blades are moving freely and scraping in full contact with the belt surface.