Frank COBRA C Operating Instructions Manual Download Page 1

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Operating instructions
Parquet floor sander COBRA C
with gentle lifting lever

Summary of Contents for COBRA C

Page 1: ...Operating instructions Parquet floor sander COBRA C with gentle lifting lever...

Page 2: ...rdingen Germany All rights reserved No liability for any damage arising from the use of this brochure Subject to alterations Hermann Frank GmbH Co KG stliche Bahnhofstra e 8 75038 Oberderdingen German...

Page 3: ...reventing damage Please give special attention to the marked instructions They refer to a potentially dangerous situation Failure to comply can result in fatal or severe injuries and damage to propert...

Page 4: ...COBRA C 14 7 1 Protective clothing and equipment 14 7 2 Fitting the dust bag 15 7 3 Safety instructions regarding dust 16 7 4 Disposing of sanding dust 17 7 5 Replacing the sanding belt 18 7 6 Adjusti...

Page 5: ...5 9 Parts lists 37 9 1 Parts list of chassis 37 9 2 Parts list of motor 42 9 3 Accessories 44 Operating instructions Parquet floor sander COBRA C with gentle lifting lever...

Page 6: ...able technology This operating instructions contain important informations for the use and safe operation of the COBRA C Caution Read these operating instructions carefully before assembling or operat...

Page 7: ...art of the machine with motor 5 wing screws 2 pieces 6 operating instructions 7 hexagon socket screw key 5 mm 8 hexagon socket screw key 6 mm 9 hexagon socket screw key 10 mm 10 running wheel adjustin...

Page 8: ...1 pressure regulating screw 11 bumper wheel 2 castor wheels 12 belt guard 3 running wheels 13 motor 4 drum cover 14 switch box 5 V belt tension screw 15 dust bag 6 tension lever 16 cable arm 7 knurle...

Page 9: ...vercurrent cutout and an no volt release The overcurrent cutout protects the machine from damage and persons from endangering in the case of short circuits The no volt release prevents uncontrolled re...

Page 10: ...e machine Instructions 1 Insert the guide tube 1 into the guide tube support 7 The curved section of the tube must face toward the motor Clamp the guide tube by means of the clamping lever 6 located o...

Page 11: ...if the machine starts up unintentionally Disconnect the machine from the power supply before working on the machine Instructions 1 Fold down the cable arm 3 2 Move the main lifting lever 2 to the fro...

Page 12: ...machine from the power supply before working on the machine Instructions 1 Make sure that the motor switch is in the off position and that the mains cable is disconnected from the motor plug 2 Unscrew...

Page 13: ...13 Operating instructions Parquet floor sander COBRA C with gentle lifting lever 6 Remove the knurled nut from the motor bracket 7 Now you can remove the motor...

Page 14: ...depends on various factors Local conditions such as room size and quality of the floor affect noise development Caution Wear a respirator When using the parquet floor sander COBRA C and when disposing...

Page 15: ...st bag Caution Only use original FRANK dust bags for the parquet floor sander COBRA C Caution The dust bag must be firmly fitted to the dust pipe before sanding Instructions 1 Pull the dust bag over t...

Page 16: ...ter a sensitization period Beech and oak dust is classified as being carcinogenic cancer of the nasal mucous membranes Dust from other kinds of wood is suspected of having a carcinogenic effect Cautio...

Page 17: ...n flammable container The container must be covered with a fire proof non flammable lid Store the container only outdoors Caution At the latest when 1 3 full the sanding dust contained in the dust bag...

Page 18: ...aution Risk of cutting your hands The sanding grains of the sanding belt have sharp edges Always wear safety gloves when replacing the sanding belt Instructions for replacing the sanding belt 1 Switch...

Page 19: ...to adjust the required sanding pressure High sanding pressure Turn the pressure regulating screw inwards as far as it will go Medium sanding pressure Turn the pressure regulating screw outwards to th...

Page 20: ...an Caution Mortal risk from electric shock Running over the electric cable with the sander entails a mortal risk from electric shock Never point the machine towards the cable 7 8 Connecting the COBRA...

Page 21: ...the end of the cable arm 3 to keep the cable away from the sanding zone 4 Connect the coupling 4 of the mains cable to the motor plug which must be disconnected from mains power 5 Connect the plug of...

Page 22: ...be fastened before sanding Caution Fire risk If there are nails in the floor they must be countersunk so low every time before sanding that there is no risk of hitting a nail while sanding Hitting a n...

Page 23: ...instructions Parquet floor sander COBRA C with gentle lifting lever Each sanding path corresponds to one forward and one backward movement The backward movement covers the same path as the precede for...

Page 24: ...sanding paths which are arranged overlappingly from left to right Make sure that the two areas are blended together without leaving any marks Note In most cases the floor is sanded in several procedu...

Page 25: ...must be in the rear position The sanding drum is clearly raised from the floor The distance to the floor is approx 15 mm 2 Before starting the machine ensure that the sanding belt is tightened 3 Brin...

Page 26: ...in this position 6 With your left hand turn the left handle 3 to unlock the stop of the main lifting lever 1 While doing so hold the gentle lifting lever 2 up with your right hand 7 While you hold the...

Page 27: ...lifting lever 2 while you are moving the machine forward evenly thus lowering the sanding drum to the floor Caution M Mo ov ve e t th he e m ma ac ch hi in ne e a at t a an n e ev ve en n p pa ac ce...

Page 28: ...s the same path as the forward movement For each forward movement move the machine about 10 cm to the right of the sanding path you have just finished Caution Never allow the machine to come to a stan...

Page 29: ...ain lifting lever 1 into the rear position and secure it here by turning the left handle 3 Do not release the gentle lifting lever 2 until this has been completed Then switch the motor off and disconn...

Page 30: ...4 Fold the tension lever 2 forward to relieve the tension on the sanding belt 5 Remove the sanding belt 3 to the side 6 Unscrew the retaining nut 4 The retaining nut is glued to the threads of the sa...

Page 31: ...m shaft 12 Apply metal adhesive to the retaining nut and screw it back on the sanding drum shaft Stand the machine up and lower the sanding drum to the floor to ensure that the sanding drum does not t...

Page 32: ...ewly adjusted To make a level uniform setting the sanding drum and the running wheels must rest on the same plane The right running wheel is adjustable The left wheel does not adjust Instructions 1 Tu...

Page 33: ...ing wheel using the running wheel adjustment device To accomplish this turn the axle of the right running wheel with the hexagon socket screw key until the right running wheel slightly touches the ton...

Page 34: ...sting the castor wheels Instructions for adjusting the castor wheels 1 Turn the machine off 2 Disconnect the machine from the mains power 3 Loosen the lock nut 1 4 Turn the castoring shaft with the he...

Page 35: ...with the following procedure the main lifting lever must be pulled backwards to remove the sanding drum from the floor 1 Make sure that the motor is in the off position and the machine is disconnecte...

Page 36: ...ient V belt tension Instructions for tightening slack V belts 1 Switch the machine off 2 Disconnect the machine from the mains power 3 Unscrew the knurled nut on the belt guard and open the belt guard...

Page 37: ...934006000 lock nut 1 9 00 370009000 hinges female part 2 9 01 936006000 lock nuts 2 10 00 370010000 hinges male part 2 10 01 936006000 lock nuts 2 11 00 310002050 bumper wheel 1 11 01 912006035 screw...

Page 38: ...ing drum shaft 1 16 01 688566030 sanding drum parallel key 1 16 02 688566020 pulley parallel key 1 17 00 439024105 drum retaining nut 1 18 00 620502000 ball bearing 1 21 00 493200000 needle roller bea...

Page 39: ...asher 1 44 08 337044080 plastic cap 1 45 00 337045000 spacer 1 46 00 337046000 handgrip bracket 1 46 01 337046010 right handgrip 1 46 02 125010000 washer 1 46 03 011008005 spacer 1 46 04 691208012 scr...

Page 40: ...fixation screw 1 64 00 370036100 pressure spring 1 65 00 270030124 tension spring 1 65 01 691208035 screw 1 65 02 125008000 washer 1 65 03 934008000 lock nut 1 66 00 912008130 tension spring screw 1...

Page 41: ...Exploded view Chassis of FRANK parquet floor sander COBRA C with gentle lifing lever...

Page 42: ...ock nuts 2 77 00 375177940 switch insert 1 77 01 375077060 capacitor 1 77 02 375077060 capacitor 1 77 04 315034868 plug 1 77 05 315039005 screws 2 77 06 375177960 switch knob 1 77 08 375177970 switch...

Page 43: ...Exploded view Single phase AC motor 230 V 50 cps of FRANK parquet floor sander COBRA C...

Page 44: ...2000 tool pouch empty 7 310102010 fork wrench 10 mm 8 310102013 fork wrench 13 mm 9 310102024 fork wrench 24 mm 10 370102336 double fork wrench 30 36 mm 11 270102005 hexagon socket screw key 5 mm 12 2...

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Frank COBRA C, Operating Instructions Manual

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