Fritsch PULVERISETTE 15 Operating Instruction Download Page 17 | Manualshive

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Fritsch PULVERISETTE 15 Operating Instruction Download Page 17

pulverisette 15

page 14

6 Maintenance

Disconnect mains connector before starting any work.
Disconnect mains connector and secure instrument against being
turned on again accidentally!
When maintenance work is being performed, this should be indi-
cated with a warning sign.

Functional part

Function / Form

Maintenance

interval

Safety switch 1
(actuated by closing
mill cover)

Prevents starting

Open cover: rotary
switch will not stay on
the on position but
jumps back.
Attention!! If the
switch is faulty, the
mill will start, Keep
away from rotating
blades.

Check switch
before each use
(replace if de-
fective)

Safety switch 2
(actuated by attaching
collector)

Prevents starting

Collector not at-
tached: rotary switch
will not stay in the on
position but jumps
back.
Attention!! If the
switch is faulty, the
mill will start, Keep
away from rotating
blades.

Check switch
before each use
(replace if de-
fective)

Conical guides on cut-
ting rotor and cover

Guide rotor

Cleaning

Before each use

Gap between rotating
and fixed blades

Cutting action

Check gap

Visual check
before each use

Gap between rotating
and fixed blades

Cutting action

Check gap

Measure every
500 hours

Rotary bearings

Permanent lubrica-
tion

Play 2,000

hours

Drive motor

Permanent lubrica-
tion

Play 4,000

hours

Silicone rubber cover
seal

Sealing

Distortion and soiling

Before each use

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Summary of Contents for PULVERISETTE 15

Page 1: ...Operating Instructions Cutting Mill pulverisette 15 ...

Page 2: ...e Instrument number 15 40XX 00 Applies as of serial number 2000 Fritsch GmbH Laborgerätebau has been certificated by the TÜV Zertifizierungsgemeinschaft e V on June 24 1994 An audit certificated the accordance of the Fritsch GmbH to the DIN EN ISO 9001 The enclosed declaration of conformity calls the directives which the pulverisette 15 corresponds to This permitts us to mark the instrument with t...

Page 3: ...ction 9 3 4 Ambience conditions 10 3 5 Electrical Connection 10 3 5 1 Adapting the cutting mill to the available supply 10 3 6 Before Switching On for the First Time 10 3 7 Switching On for the First Time Test for Correct Functioning 10 4 Working with the Cutting Mill 11 4 1 Preparation for milling 11 4 1 1 Insert sieve 11 4 1 2 Checking the blade gap 11 4 1 3 Closing the cutting mill 11 4 2 Milli...

Page 4: ...ntents of the operat ing instructions Please observe all notes concerning your safety The cutting mill was designed with the user s safety in mind however inherent risks cannot be excluded Follow the advice in these instructions to avoid risks to users The symbols in the right hand margin highlight the risks de scribed in the text Symbols are also to be found on the in strument warning users of po...

Page 5: ...rating instructions Attention Warning against danger spot Observe operating instructions Attention Mains voltage Attention Risk of explosion Attention Hot surface Attention Inflammable substances Wear protective gloves Wear ear protectors Wear eye shield Do not walk under suspended load ...

Page 6: ...refuse animal feed pellets horn bone plastics sheet rubber coal leather 1 3 2 Method of Operation Material to be cut is fed from a hopper into the cutting chamber by means of a pusher Here four rotating blades work against three fixed blades to chop up the sample The bottom of the cutting chamber is closed by a sieve insert Comminuted material passes through the sieve and is collected in a pot 1 3...

Page 7: ...g at the motor cooling grid clockwise The single phase AC motor is factory set to rotate anticlockwise See DIN VDE 0530 part 8 Terminal marking and direction of ro tation DIN VDE 0530 Teil 7 EN 60 934 7 Type codes The direction of rotation of the 3 phase motor can be changes by swap ing two of the leads L1 L2 and L3 either at the motor terminals or in the plug The direction of rotation may only be...

Page 8: ...V 5 7 A 400 V 3 3 A Power con sumption 1 76 2 1 kW with high loading sig nificantly less in normal use 1 9 kW with high loading sig nificantly less in normal use Transient overvoltages according to overvoltage category II allowed See also section 3 5 Electrical Connection Electric fuses Thermal protection switch motor protection switch ready for operation again automatically after cooling down a f...

Page 9: ...an di rectives which is asserted by Fritsch and the warranty Wear protective gloves while cleaning the cutting chamber Wear ear protectors if the noise level is higher than 99dB A Wear eye shield Behaviour at all times must be such as to strictly preclude any risc of accidents Furthermore the MAC values at place of work specified in the pertinent safety regulations must be adhered to Where appli c...

Page 10: ...e functioning correctly See also section 6 Maintenance The cutting mill has an extensive safety system 1 Protective switch on mill cover This monitors whether the cover is closed and prevents the mill from operating if it is open The mill will not start if the mill cover is open 2 Protective switch on collector During operation this monitors correct seating of the collector 3 5 litre pot or 30 lit...

Page 11: ...l On turning the switch to Stop 0 the motor is switched off The mill will stop within seconds The collector can be detached The mill cover can be opened Protection against Restarting If power fails during operation the motor is switched off The mill will stop within seconds The collector can be detached The mill does not restart when the supply returns The mill is secured against restarting On tur...

Page 12: ... the transport pallet by four screws Undo the four screws Lift the cutting mill off the transport pallet Lifting the machine down will require at least two persons Position the cutting mill on 1 a strong table or bench and screw the fixing motor base to the top so that the collector flange projects over the edge or 2 screw the cutting mill onto its stand so that it is above the two feet of the sta...

Page 13: ... Adapting the cutting mill to the available sup ply Changing the required supply voltage from 230 3 to 400 3 volts and or changing the connecting cable mayonly be carried out by a trained elec trician 3 6 Before Switching On for the First Time The rotor must be checked to see that it rotates freely For this purpose release the knurled knob on the mill cover and open the cover If the rotor turns fr...

Page 14: ...Checking the blade gap and 6 1 Removal and fitting of cutting blades Attention danger of injury from sharp blades 4 1 2 Checking the blade gap The rotating blades must not touch the fixed blades the gap between them is set at works 0 2 0 3 mm for fixed blades The rotating blades must be set parallel to the fixed blades Turn the cutting rotor carefully by hand Attention danger of injury from sharp ...

Page 15: ...opper 4 Insert the material to be cut 5 Lift pusher carefully to the end stop 6 Slowly lower the pusher and push the material into the cutting chamber 7 Note that the material may become heated allow cool ing pauses if necessary 8 When milling is finished carefully release the collector latches Release both latches together ATTENTION Only insert as much material as the machine can reasonably handl...

Page 16: ...e wiped off with a damp cloth Do not allow any liquids to seep into the machine 5 1 Cleaning the mill chamber Open the laboratory cutting mill Open the cover Set the rotary blade in a vertical position Open the upper housing halves Remove the sieve It is recommeded that the cutting chamber is cleaned with a brush and vacuum cleaner or with compressed air Attention danger of injury from sharp blade...

Page 17: ...efore each use replace if de fective Safety switch 2 actuated by attaching collector Prevents starting Collector not at tached rotary switch will not stay in the on position but jumps back Attention If the switch is faulty the mill will start Keep away from rotating blades Check switch before each use replace if de fective Conical guides on cut ting rotor and cover Guide rotor Cleaning Before each...

Page 18: ...ed blades The remaining three rotating blades are not fitted until the fixed blades have been fitted and or adjusted and are set for a spacing of 0 2 0 3 mm from the left hand fixed blade 6 1 2 Removal and fitting of fixed blades To remove one of the fixed blades loosen the middle fixing screw and withdraw the blade Before fitting the fixed blades at least one rotating blade must be in stalled The...

Page 19: ...llector properly Rotor does not turn Blade gap incorrect Readjust blade gap see section 4 1 2 Checking the blade gap 6 1 Removal and fitting of cutting blades Mill stops during operation Motor overheated Check fan allow mill to cool Overload Motor protection switch actuated Allow mill to cool clear of material reduce material feed rate Poor milling re sult Incorrect direction of rotation Check rot...

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