COBRA - Coral North America · intermediate joints (see fig. 8) to optimise tube manoeuvrability in the section between the hood and the intermediate joint. Turn the screw clockwise

ASSEMBLY,

USE AND MAINTENANCE INSTRUCTION MANUAL

COBRA

CORAL S.p.A. Page 2 4-11-2010 The data contained in this manual are subject to variations and improvements. CORAL reserves the right to make changes without prior notice.

TABLE OF CONTENTS

1.0 BACKGROUND INFORMATION 3

2.0 ASSEMBLY OF THE ARM 3

2.1 TROLLEY-FITTED ARM 3

2.2 WALL-MOUNTED ARM 5

3.0 JOINT STIFFNESS CALIBRATION PROCEDURE 5

4.0 COBRA FILTERING ARM WITH HOOD AND LIGHT (OPTIONAL) 6

5.0 USE AND RESTRICTIONS 8

6.0 MAINTENANCE 8

7.0 EXPLODED DRAWING AND LIST OF MATERIALS 9

7.1 TROLLEY-FITTED FILTERING ARM VERSION 9

7.2 WALL-MOUNTED FILTERING ARM VERSION 11


1

Fig.1

1.0 BACKGROUND INFORMATION The CORAL “COBRA” filtering arm is supplied partially disassembled in a tough cardboard box. Remove the material from the packaging and check that it was not damaged during transportation. Check completeness of the supply against the list of materials. Please inform your Coral S.p.A. retailer as soon as possible if problems are found, in any case no later than ten (10) days after delivery.

Use suitable lifting means for handling the unit. Adopt all the necessary safety precautions specified for construction site activities.

2.0 ASSEMBLY OF THE ARM

2.1 TROLLEY-FITTED ARM

The filtering arm is split into three parts for packaging needs: the slewing bearing, the load-bearing arm and the hood. The latter is partially connected to the arm through the flexible tube. Assemble these parts before proceeding with the assembly operation. Assembly procedure: 1. The hood is shown in fig. 1.

2. Loosen the anchoring screw and remove it

from the hood attachment upper joint fork (1, fig. 1). 3. Insert the square section tube of the arm

(2) in the hood fork (3) and fasten the assembly by means of the flanged anchoring screw, respective nut and Teflon

washers (in the order shown in fig.2). Use an Allen wrench and a hex wrench for tightening. 4. The slewing bearing-arm support joint is

shown in fig. 3. The cam pin (4) has two reinforcements (5) fitted on threaded pins (6) and four flanged screws (see drawing in fig. 4).

5. Remove the four cam pin screws. 6. Insert the cam pin on the supporting

slewing bearing (Pos.4) inside the square section tube of the jointed arm (4 in 7, fig. 5).


7. Fasten the assembly by tightening the four previously removed flanged screws.

8. Fit the tube clamp on the terminal part of the flexible tube. 9. Fit the flexible tube on the slewing bearing

tube and tighten the clamp with a screwdriver (fig. 6).

Fig.3

4

Fig.5

7

Fig.4 5

6

4 Fig.6


2.2 WALL-MOUNTED ARM

The filtering arm is split into three parts for packaging needs: the support, the load-bearing arm and the hood. The latter is partially connected to the arm through the flexible tube. Assemble these parts before proceeding with the assembly operation.

Assembly procedure: 1. Repeat steps from 1. to 3. In paragraph 2.1. 2. The support-arm support joint is shown in fig. 7. The cam pin (4) has two reinforcements (5) fitted on threaded pins (6) and four flanged screws (see drawing in fig. 4). 3. Fasten wall mount (8) in the position defined by the user with suitable bolts (the bolts are not supplied by Coral S.p.A.).

Ensure that the installation is level with the floor. 4. Repeat steps from 5 to 9 in paragraph 2.1.

3.0 JOINT STIFFNESS CALIBRATION PROCEDURE The stiffness of the joints may need to be calibrated after assembly installation of the filtering arm to customise standard settings. Proceed as follows: 1. Start by adjusting the hood movements.

Simply tightening the joint lock nuts (indicated by letters A, B and C in fig.8) as required: A: hood lateral swivel stiffness adjustment. B: hood rotation stiffness adjustment on load-bearing tube axis. C: hood fore/aft swivel stiffness

adjustment. 2. Turn the calibration screw under the first tube

section, i.e. that between the wall mount and intermediate joints (see fig. 8) to optimise tube manoeuvrability in the section between the hood and the intermediate joint. Turn the screw clockwise to increase the force needed to manoeuvre the arm.

Fig.7

Fig.8

C

B

A


3. TROLLEY-FITTED ARM: Calibrate the screw on the head of the spring housing support (see fig. 10) to adjust the joint near the slewing bearing. Turn the screw clockwise to increase the force needed to manoeuvre the arm.

4. WALL-MOUNTED ARM: Calibrate the screw on the head of the spring housing support (see fig. 11) to adjust the joint near the slewing bearing. Turn the screw

clockwise to increase the force needed to manoeuvre the arm.

4.0 COBRA FILTERING ARM WITH HOOD AND LIGHT (OPTIONAL) The COBRA filtering arm may be provided with hood and light. Refer to fig. 12 in this case. The COBRA filtering arm is complete with socket for powering the light. It is also provided with plug for electrical connections according to the diagram shown in fig. 13.

Fig.9

Fig.10

Fig.11


Nr. Code Description UNIT Qty

. 1 8013050025 SCREW item 1 2 8013060042 PARKER SCREW item 2

3 3000002002 GUIDE WITH HOLES FOR HOOD AND LIGHT item 1

4 7058110066 TOGGLE SWITCH 16A-250V item 1

5 7045030029 CAP FOR HOOD item 1 6 3000002001 PLASTIC HOOD LINER item 1

7 3000002003 CAP LIGHT HOLDER CONE item 1

8 8010000075 WASHER item 1 9 8003000003 HEX NUT item 1

10 7058220002 24V-10A HALOGEN BULB HOLDER item 1

11 7058080026 20W-24V HALOGEN LIGHT BULB item 1

12 7046030027 RUBBER O-RING item 1 13 3000002005 STOP RING item 1 14 0027000028 GLASS item 1 15 7046030016 RUBBER GROMMET item 2

Fig.12

Fig.13


5.0 USE AND RESTRICTIONS The COBRA filtering arm was designed to extract polluting agents such as: • fumes • vapours • metallic powders • wood • plastic of granulometry up to 10µ mixed in air.

The COBRA filtering arm is not designed to process flammable and/or explosive and/or toxic vapours by nature or reaction. The suction hood should be equipped with the spark

stopper mesh shown in the fig. 14 for extraction of incandescent powders. Contact the Coral S.p.A. technical office beforehand in all cases.

Airtight and explosion-proof electronic components must be used in COBRA filtering arms with hood and light for extraction of flammable or explosive substances (see fig. 12). Fans equipping the filtering arm, where relevant, must be

spark-proof. Connect the filtering arm electrically to earth. Connect the contact points with a suitable cross-section braid fastened to the unit. Make sure continuity is ensured

Improper use includes actions which effect functionality, integrity and safety of the filtering arm and extension, the internal electrical and mechanical apparatuses and the control and connection elements. Coral S.p.A. Technical Assistance is at your service for additional information on product use.

6.0 MAINTENANCE Do not perform maintenance operations while the system or trolley-fitted filtering unit fan is either running or connected to the electrical mains.

COBRA filtering arms are specifically designed to be routine maintenance-free. The following interventions are recommended to: • Check correct calibration of the filtering arm once a month. • Check conditions of flexible channel sections once a month. • Check wear of suction hood joints and hood clutches once a month. • Check wear of slewing bearing once a month.

Fig.14


• Check conditions of internal adjustment shutter once a month.

7.0 EXPLODED DRAWING AND LIST OF MATERIALS

7.1 TROLLEY-FITTED FILTERING ARM VERSION


Arm Ø=150

L=3000 Aluminium

L=3000 Flex

Nr. Code Code Description UNIT Qty. 1 3000002727 3000002727 COMPLETE HOOD item 1 2 3000003556 3000003556 HOOD ATTACHMENT BRACKET item 1 3 3000003554 3000003554 HOOD ATTACHMENT LOWER JOINT item 1 4 3000008902 3000008902 HOOD ATTACHMENT UPPER JOINT item 1 5 3000008790 3000008790 ARM TUBE item 1 6 3000008890 3000008890 JOINT SUPPORT item 6 7 3000008904 3000008904 INTERMEDIATE JOINT CAM item 1 8 3000008901 3000008901 SHIM item 1 9 3000008840 3000008840 SPRING TENSIONER item 1 10 3000008910 3000008910 SPRING item 1 11 3000008844 3000008844 SPRING COVER BUSHING item 1 12 3000001533 3000001533 GUIDE ANCHORING BRACKET item 1 13 3000008849 3000008849 UPPER TUBE WITH SPRING HOLDER item 4 14 3000008841 3000008841 REINFORCEMENT item 1 15 3000009146 3000009146 THREADED PIN item 4 16 3000008843 3000008843 CARBONITRIDE THREADED PIN item 6 17 3000008923 3000008923 THREADED BUSHING item 1 18 3000008905 3000008905 BASIC JOINT CAM item 1 19 3000008839 3000008839 SPRING TENSIONER item 1 20 0028010511 0028010511 SPRING item 1 21 3000008903 3000008903 SPRING COVER BUSHING item 1 22 3000008886 3000008886 SUPPORT AND SPRING HOUSING item 1 23 3000000711 3000000711 SLEWING BEARING item 1

3000000668 / ALUMINIUM TUBE item 1 24 / 7048130007 FLEX - NOSMOKEFLEX TUBE metre

s 3.5

25 3000002930 / ALUMINIUM TUBE item 1 26 3000000636 / FLEX – NOSMOKEFLEX TUBE L=830 mm item 1 27 3000000637 / FLEX – NOSMOKEFLEX TUBE L= 900 mm item 1 28 3000001760 / FLEX – NOSMOKEFLEX TUBE L= 700 mm item 1 29 7045030023 7045030023 PLASTIC CLAMPS item 6 30 8013020011 8013020011 FLANGED SOCKET HEAD SCREW item 14 31 8013020003 8013020003 SOCKET HEAD SCREW item 4 32 8003000004 8003000004 HEX NUT item 2 33 8013000050 8013000050 ZN STEEL HEX HEAD SCREW item 2 34 8013000037 8013000037 HEX HEAD SCREW item 6 35 8003000017 8003000017 HEX NUT AND WASHER item 10 36 3000003582 3000003582 FASTEK BUSHING D. 17X15 item 1 37 8013020008 8013020008 BURNISHED SCREW item 1 38 8013020020 8013020020 BURNISHED SCREW item 1 39 8013020015 8013020015 BURNISHED SCREW item 1 40 8003000046 8003000046 LOCK NUT item 2 41 8010000026 8010000026 WASHER item 6


7.2 WALL-MOUNTED FILTERING ARM VERSION


Arm

Ø=150 L=2100 Aluminiu

m

L=3000 Aluminiu

m

L=4000 Aluminiu

m

L=2100 Flex

L=3000 Flex

L=4000 Flex

Nr. Code Code Code Code Code Code Description UNIT

Qty.

1 3000002727 COMPLETE HOOD item 1

2 3000003556 HOOD ATTACHMENT BRACKET item 1

3 3000003554 HOOD ATTACHMENT LOWER JOINT item 1

4 3000008902 HOOD ATTACHMENT UPPER JOINT item 1

5 3000008790 ARM TUBE item 1 6 3000008890 JOINT SUPPORT item 6 7 3000008906 INTERMEDIATE JOINT CAM item 1 8 3000008901 SHIM item 1 9 3000009484 CLUTCH PLATE item 2 10 3000008840 SPRING TENSIONER item 1 11 3000008910 SPRING item 1 12 3000008844 SPRING COVER BUSHING item 1

13 3000001533 GUIDE ANCHORING BRACKET item 4

14 3000009166 3000008849 3000008996 3000009166 3000008849 3000008996 UPPER TUBE WITH SPRING HOLDER item 1

15 3000008841 REINFORCEMENT item 4 16 3000009146 THREADED PIN item 6

17 3000008843 CARBONITRIDE THREADED PIN item 1

18 3000008923 THREADED BUSHING item 1 19 3000008907 3000008909 3000008907 3000008909 BASIC JOINT CAM item 1 20 3000008839 SPRING TENSIONER item 1 21 0028010510 0028010511 0028010510 0028010511 SPRING item 1 22 3000008903 SPRING COVER BUSHING item 1

23 3000008982 SUPPORT AND SPRING HOUSING item 1

24 3000009502 SUPPORT item 1 3000009168 3000000668 3000009163 / ALUMINIUM TUBE item 1

25 / 7048130007 7048130007 7048130007 FLEX - NOSMOKEFLEX TUBE

metres 2,5/3,5/4,5

26 3000002930 / ALUMINIUM TUBE item 1

27 3000000638 / FLEX – NOSMOKEFLEX TUBE L=830 mm item 1



30 7045030023 PLASTIC CLAMPS item 4 31 8003000004 HEX NUT item 2

32 8013000050 ZN STEEL HEX HEAD SCREW item 2

33 8013020011 FLANGED SOCKET HEAD SCREW item 14

34 3000003582 FASTEK BUSHING D. 17X15 item 1 35 8013020008 BURNISHED SCREW item 1 36 8013020020 BURNISHED SCREW item 1 37 8013020015 BURNISHED SCREW item 1 38 8003000046 LOCK NUT item 2 39 8010000026 TEFLON WASHER item 6

40 8013000050 ZN STEEL HEX HEAD SCREW item 1

41 8003000012 HEX NUT item 1 42 8010000076 FLAT WASHER item 2

Documents

COBRA - Coral North America · intermediate joints (see fig. 8) to optimise tube manoeuvrability in the section between the hood and the intermediate joint. Turn the screw clockwise