Fein FSC1.6Q User manual

FEIN REPAIR TOOLS
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FSC 1.6 Q / FSC 2.0 Q

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Summary
1. Technical data
2. Maintenance
3. Electrical function check
4. Disassembly
5. Assembly
6. Tools
7. Extracts from the operating instructions
8. Modifications, extras, repair information
Spare parts lists and exploded view diagram are available online at:
www.fein.de/Fein Service/Fein Ersatzteile

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1. Technical data
Order number new 7 236 42 7 236 36
Model new FSC 1.6 Q FSC 2.0 Q
Power / consumption watts 400
Power / output watts 220
Oscillations rpm 11000 - 18500
Mains supply type 1~
Protection class lI
Length of cable with plug m 5
Weight without cable kg 1.25

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2. Maintenance
2.1. Provisions
2.2. Cleaning and care
2.3. Replacing carbon brushes
2.4. Repair and maintenance intervals

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2.1. Provisions
Provisions:
Please note that power tools may only be repaired, maintained and checked by a trained
electrician, as improper repairs can result in serious risks to the user (BGV A2).
Repeated inspections are to be carried out in accordance with DIN VDE 0702-1.
The regulations in accordance with DIN VDE 0701 Part 1 should be observed after
repairs.
Only use original FEIN spare parts!
The relevant accident prevention regulations of the employers’liability insurance
associations are to be observed when commissioning.
The German Equipment and Product Safety Act applies for correct use.
Outside Germany, the regulations applicable in the relevant country must be observed!

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2.2. Cleaning and care
Risk of injury through accidental switching on.
Unplug before undertaking any maintenance.
Once a week, or more often in the case of frequent use:
•Check cable (160) for damage
•Clean cooling apertures
•Blow out the inside of the power tool from the outside
with dry compressed air through the ventilation openings.

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2.3. Replacing carbon brushes
The machine is fitted with carbon brushes with self-cutoff.
When checking the carbon brushes, make sure they are reinserted in the same
position and can move easily in the carbon brush holder.
When the carbon brushes wear down to a length of 7mm they need to be
replaced with new ones.
Only use original FEIN carbon brushes as this is the only way to ensure
compliance with EMC requirements!
Run in new carbon brushes for 20 minutes without load at the lowest possible
speed.

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2.4. Repair and maintenance intervals
After approx. 300 operating hours:
•Dismantle machine, clean, and blow out or brush down insulating parts,
replace spherical bearing (500)
Depending on type and duration of use, but at least every 6 months:
•Dismantle machine
•Clean machine thoroughly
•Replace bearing (armature)
•Clean electronics (dry cleaning only)
•Check cable and inner stranded wires for chafe marks
•Check that plug contacts are snugly fitting
•Replace spherical bearing (500)

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3. Electrical function check
3.1. Function check
3.2. Test data
3.3. Test equipment and tools
3.4. Circuit diagram / connection diagram
3.5. Safety test

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3.1. Function check
3.1.1. Without mains, connected to mains
3.1.2. Motor
3.1.3. Electronics

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3.1.1. Without mains, connected to mains
Without mains
•Check cable (160) for damage
•Can the slide switch (20) be easily moved and does it engage cleanly?
•Can the speed adjustment button (80) be moved from positions 1 - 6?
•Check cooling and ventilation slits for dirt
•Is the fan wheel on the armature (255) undamaged?
Connected to mains
•Plug in mains plug
•Switch on machine using slide switch (20)
•Adjust speed using speed adjustment button (80)
•Manually check oscillating movement on drive shaft (430)

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3.1.2. Motor
Checking the motor without electronics
•Disconnect motor feed cable from the electronics
•Apply test voltage to motor feed cable as per the table.
Rated voltage
100 –120 V AC
220 –240 V AC
Test voltage
max. 65 V AC
max. 130 V AC

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3.1.3. Electronics
•The electronics cannot be tested without load (motor), the control
circuit must be closed.
•The electronics are assumed to be functioning if the speed values
match the test data.
•Magnet holder assembly (270), especially the magnet ring, must
not be damaged.
Important!
With mains voltage the machine may only be operated with the
electronics correctly inserted. Otherwise the control circuit will be
broken and the speed will become unacceptably high.

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3.2. Test data
Order number 7 236 42 7 236 36
Model FSC 1.6 Q FSC 2.0 Q
Conformity mark CE
Rated voltage volts 230
Rated current amperes 2.3
Idling current amperes 0.8 (0.72 - 0.92)
Rated output watts 400
Power / output watts 220
Oscillations rpm 11000 - 18500
Oscillations / max rpm 18500 - 18900
Mains supply type 1~
Protection class lI
Length of cable with plug m 5
Weight without cable kg 1.45

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3.3. Test equipment and tools
Multimeter for measuring effective values (voltage, current, resistance).
Tachometer, pulse counter (suitable for oscillating motion).
Adjustable isolating transformer
(for testing motor without electronics at 65 V and 130 V AC).

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3.4. Connection diagram
BK
BK
BK
BK
BN
BU
BU BU
BN
Mains cable
M

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3.5. Safety test /(after about 15-minute run-in)
Important!
The safety test
must comply
with the
specifications
set out in the
current version
of DIN VDE
0701 Part 1
(Appendix "E"
for power
tools).
Test steps
Test type
1.
Visual inspection
1. Remove clamped tool if necessary
2. Cable
3. Housing
4. Mechanical operating elements
5. Check type plate
2.
Measuring insulation
resistance
1. Disconnect from mains
2. Connect L1 and N to plug
3. Switch "ON"
Measuring points: Gear head and screws (140+200) to L1/N
Test voltage: 500 V DC
Insulation resistance: min. 2.0 M ohms
3.
High-voltage test
High-voltage test
according to: EN-
60745-1, §15: 2003
1. Disconnect from mains
2. Connect L1 and N to plug
3. Switch "ON"
Measuring points: Gear head and screws (140+200) to L1/N
Test time: min. 3 sec
Test voltage: 2500 V AC
Tripping current: 5mA > Overcurrent relay of test rig must not trip
4.
Speed measurement
1. Speed setter (80) at level 6
2. Switch on machine
3. Measuring point: on drive shaft (430)
Test time: min. 12 sec
Speed tolerance range: min. 18 500/min, max. 18 900/min
5.
Measuring idling
current
1. Switch on machine
2. Test time: min. 3 sec
Idling current tolerance range: min. 0.72 A, max. 0.92 A
Safety test:
...as carried
out by FEIN

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4. Disassembly
4.1. Preparation
4.2. Electronics
4.3. Carbon brushes and carbon holder
4.4. Disassembly of gearbox
4.5. Disassembly of field magnet
4.6. Disassembly of armature
4.7. Disassembly of outer bearing

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4.1. Preparation
1. Disconnect FSC from the mains
2. Remove clamped tool

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4.2. Electronics
Tool:
•PH 2 cross-tip
screwdriver
•Flat nose pliers
1. Remove screws (140 and 200). Remove cover (90).
2. Disconnect motor connections from electronics, pull cable bridge out of
guide and remove electronics from the housing.
3. Release stranded wires from plug connection in electronics (100).