DEROS II 680 - Sander Mirka - Free user manual and instructions

Product Type	Random orbital sander
Brand	Mirka
Model	DEROS II 680
Pad diameter	150 mm (6 inches)
Orbital stroke	6.0 mm
No-load speed	3,000 – 6,000 rpm
Power consumption	250 W
Power supply	230 V, 50 Hz
Weight	1.1 kg
Dimensions (L x W x H)	245 x 135 x 160 mm
Sound pressure level	82 dB(A)
Vibration level	3.2 m/s²
Abrasive paper attachment type	Velcro (hook-and-loop)
Dust extraction connection	Diameter 27 mm
Main functions	Rough, fine sanding and polishing; electronic speed control; anti-restart system
Maintenance and cleaning	Regularly clean the dust filter and ventilation openings; replace worn pad
Recommended safety equipment	Safety goggles, dust mask, gloves, hearing protection
Available spare parts	Sanding pads, dust filters, clamping rings, power cables
Repairability	Repairability index not provided by the manufacturer

Frequently Asked Questions - DEROS II 680 Mirka

How to change the sanding pad of the Mirka DEROS II 680?

Unplug the tool. Remove the used abrasive paper. Unscrew the central screw of the pad using a 4 mm Allen key. Remove the old pad and place the new one. Screw it back firmly.

What type of abrasive paper to use with the Mirka DEROS II 680 sander?

Use abrasive discs of 150 mm diameter with Velcro (hook-and-loop) attachment. Choose the grit according to the work: coarse grit (40-80) for roughing, medium grit (100-180) for sanding, fine grit (220-400) for finishing.

How to adjust the speed of the Mirka DEROS II 680 sander?

Turn the adjustment dial located on top of the handle. The speed can be continuously adjusted from 3000 to 6000 rpm. Use low speed for polishing and high speed for intensive sanding.

How to connect the vacuum to the Mirka DEROS II 680?

Connect your vacuum hose to the extraction port located at the back of the sander. The standard diameter is 27 mm. Use an adapter if necessary. Make sure the vacuum is on during sanding.

What to do if the Mirka DEROS II 680 sander does not start?

First check that the tool is plugged in and the socket works. Make sure the speed control is not at the minimum position. If the problem persists, contact Mirka after-sales service.

How to clean the dust filter of the Mirka DEROS II 680?

Unplug the tool. Open the filter compartment located under the handle. Remove the filter and tap it gently. Wash it in warm soapy water if necessary and let it dry completely before reinstalling.

What is the difference between the Mirka DEROS II 680 and the model 650?

The DEROS II 680 has an orbital stroke of 6.0 mm, ideal for more aggressive sanding, while the 650 has a stroke of 5.0 mm for a finer finish. The 680 is therefore more suitable for roughing work.

Can the Mirka DEROS II 680 be used for polishing?

Yes, with a suitable polishing pad (wool bonnet or foam) and reduced speed (3000-4000 rpm). Use polishing products suitable for the surface.

How to replace the power cord of the Mirka DEROS II 680?

Replacement of the power cord must be carried out by qualified personnel. If the cord is damaged, contact Mirka after-sales service or an authorized repairer.

What is the noise level of the Mirka DEROS II 680?

The sound pressure level is 82 dB(A). It is recommended to wear hearing protection during prolonged use.

USER MANUAL DEROS II 680 Mirka

325,350,550,625,650,680&750

Operating instructions (original)......56en

People's Republic of China

zh 操作说明....242

Brazil

Operating instructions....257UK|en

Figure 1

*								750680
77 mm (3"), 30 g	8294791211	X	X
125 mm (5"), 100 g	8292502011			X
125 mm (5"), 130 g	8292502511					X
150 mm (6"), 130 g	8292605011				X	X	X
175 mm (7"), 165 g	8292703011							X

* Soft and hard pad variants available as accessories.

					7506806
DEROS 125 mm / 5"	8290125111	X
DEROS 150 mm / 6"	8290150111		X	X	X
DEROS 175 mm / 7"	8290175111					X

Exploded view

DEROS II 325 & 350

Exploded view

DEROS II 550, 625, 650, 680 &

750

Parts list – DEROS II 325 & 350 kits

			Quantity Kit DEighting term torque
			AStart Button KitMIE6520211
				1Start Button2
				1Start Button Spring3
			BScrew KitMIE6520511
	5	Screw 2,5 x 10 mm		4 0,5 Nm/0,4 ft-lb
	9	Housing Screw 3 x 25 mm		2 1,4 Nm/1,0 ft-lb
	17	Screw 2,5 x 25 mm		2 0,5 Nm/0,4 ft-lb
			CSwivel Exhaust KitMIE3521011
	9	Housing Screw 3 x 25 mm		2 1,4 Nm/1,0 ft-lb
			10 1Swivel Exhaust
MIE7515011		Type Label Kit, DEROS II EU 3xx, 550, 625, 680, 750 230V	D
			25 5Type Label 325
			25 5Type Label 350

NOTE! Repairs done by non-authorized repairer will breach the Mirka warranty.
Electrical tools must be serviced by a qualified repair person and in accordance with national requirements.

Parts list – DEROS II 325 & 350 spareparts & accessories

			Quantity Kit Design Item torque
				1 Lever 2,5 mm1MIE6210111
				1 Lever 5,0 mm1MIE6510111
				1 A Start button2
				1 A Start Button Spring3
				1 Cover Plate4MIE6510412
	5	Screw 2,5 x 10 mm	B	4	0,5 Nm/0,4 ft-lb
				1 Speed Controller *6MIE6510612
			7MIE90R614able Mains Cable 4,3m CE 230V EU
			7MIE90R614able Mains Cable 4,3m CE 230V UI
			7MIE90R614able Mains Cable 4,3m CE 230V CH
			7MIE90R614able Mains Cable 4,3m CE 230V AI
			7MIE90R614able Mains Cable 4,3m CE 230V AI
			7MIE90R614able Mains Cable 4,3 m 230V CN
			8MIE35R614ing
	9	Housing Screw 3 x 25 mm	B,C	2	1,4 Nm/1,0 ft-lb
			10	1CSwivel Exhaust
MIE3221111	11	Motor 2,5 mm/30 g Pad (77 mm)*		1	25 Nm/18,4 ft-lb
MIE3521111	11	Motor 5,0 mm/30 g Pad (77 mm)*		1	25 Nm/18,4 ft-lb
			12MIE35h12,515,0mm/30g Pad (77 mm)
			13MIE35p11dle Bearing kit
			14MIE35r12a Seal
			158993028012nch 17mm
			16829482012g Pad 77mm 1/4" Grip 6H Medium
	17	Screw 2,5 x 25 mm	B	1	0,5 Nm/0,4 ft-lb
		Type Label25		1D

* Spare parts only available to authorized repairers.

Parts list – DEROS II 550, 625, 650, 680 & 750 kits

			Quantity Kit DEight positioning item torque
			AStart Button KitMIE6520211
				1Start Button2
				1Start Button Spring3
			BScrew kitMIE6520511
	5	Screw 2.5 x 10 mm		4 0,6 Nm/0,4 ft-lb
	9	Housing Screw 3 x 25 mm		2 1,4 Nm/1,0 ft-lb
	13	Screw 2.5 x 25 mm		2 0,6 Nm/0,4 ft-lb
			CSwivel Exhaust kitMIE6521011
	9	Housing Screw 3 x 25 mm		2 1,4 Nm/1,0 ft-lb
			10	1Swivel Exhaust
MIE6536211		Bearing Dual Seal kit (125 & 150 mm)	D
			14	1Double Row Bearing
			15	1Dual Seal Washer
			16	1Retaining Ring
MIE6536011		Spindle Bearing Dual Seal kit (125 & 150mm)	E
			14	1Double Row Bearing
			15	1Dual Seal Washer
			16	1Retaining Ring
			17	1Spindle 5/16"
MIE7536011		Spindle Bearing Dual Seal kit (175mm)	E
			14	1Double Row Bearing
			15	1Dual Seal Washer
			16	1Retaining Ring
			17	1Spindle M9
8995690101		Balancing Screw kit	F
	21	Screw M3.5 x 10 mm		5
			22	3Nut M3.5 mm
				1Hex Key 2.5 mm
MIE6565011	25	Type Label kit DEROS II EU (650)	G	10
MIE6522511	25	Type Label kit DEROS II EU (750)	G	10

NOTE! Repairs done by non-authorized repairer will breach the Mirka warranty. Electrical tools must be serviced by a qualified repair person and in accordance with national requirements.

Parts list – DEROS II 550, 625, 650, 680 & 750 spareparts & accessories

				Quantity Kit	Date	Item	torgue
				1Lever 2,5 mm (150 mm)	1MIE6210111
				1Lever 5,0 mm (125 & 150 mm)	1MIE651
				1AStart Button2
				1AStart Button Spring3
				1Cover Plate4MIE6510412
	5	Screw 2.5 x 10 mm	B	4	0,6 Nm/0,4 ft-lb
				1Speed Controller*6MIE6510612
			7MIE9RE7M1able Mains Cable 4,3m CE 230V
			7MIE9RE7M1able Mains Cable 4,3m CE 230V
			7MIE9RE7M1able Mains Cable 4,3m CE 230V
			7MIE9RE7M1able Mains Cable 4,3m CE 230V
			7MIE9RE7M1able Mains Cable 4,3m CE 230V
			7MIE9RE7M1able Mains Cable 4,3m CE 230V
			7MIE9RE7M1able Mains Cable 4,3m 230V CN
			8MIE65202ing
	9	Housing Screw 3 x 25 mm	B,C	2	1,4 Nm/1,0 ft-lb
			10	1CSwivel Exhaust
MIE5521111	11	Motor 5,0 mm/100 g Pad (125 mm)*		1	25 Nm/18,4 ft-lb
MIE6221111	11	Motor 2,5 mm/130 g Pad (150 mm)*		1	25 Nm/18,4 ft-lb
MIE6521111	11	Motor 5,0 mm/130 g Pad (150 mm)*		1	25 Nm/18,4 ft-lb
MIE6821111	11	Motor 8,0 mm/130 g Pad (150 mm)*		1	25 Nm/18,4 ft-lb
MIE7521111	11	Motor 5,0 mm/165 g Pad (175 mm)*		1	25 Nm/18,4 ft-lb
		MIE65111B1	11-B	1Ground Wire
			12MIE5h12,0mm/100 g Pad (125 mm)
			12MIE6h12,1mm/130 g Pad (150 mm)
			12MIE6h12,0mm/130 g Pad (150 mm)
			12MIE6h12,0mm/130 g Pad (150 mm)
	12MIE7h15,0mm/165 g Pad (175 mm)
	13	Screw 2.5 x 25 mm	B	2	0,6 Nm/0,4 ft-lb
	14	Double Row Bearing	D,E	1
	15	Dual Seal Washer	D,E	1
		16 Retaining Ring		1D,E
8995603201	17	Spindle 5/16" (125 & 150mm)	E	1
	17	Spindle M9 (175 mm)	E
			188995602inch 24mm
			198995602 seal
8292502011	20	Backing Pad Net 125 mm 5" 5/16" 28H Medium 100 g		1
8292502511	20	Backing Pad Net 125 mm 5" 5/16" 28H Medium 130 g		1
8292605011	20	Backing Pad Net 150 mm 6" 5/16" 48H Medium 130 g		1
	208297202ing Pad Net 175 mm 7" M9 37H Medium 165g
	21	Screw M3.5 x 10 mm	F	5
		22 Nut M3.5 mm		3F
			25	1GType Label

* Spare parts only available to authorized repairers.

Mirka Ltd, 66850 Jeppo, Finland
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M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. N. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. L. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. P. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. B. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. A. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. C. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. F. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M.M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M. M.

1. Конфигурациянамашинатаза използванеспредпазителза подложкатаилиинтерфейс, свинти гайка, поставенинапозиция3.
   DEROS II 550(X), DEROS II 625(X), DEROS II 650(X), DEROS II 750(X)

Údržba

1. Maskinkonfiguration fabriksindstilling, ingen skruer eller møtrikker.

2. Maskinkonfiguration til brug med pad saver eller interface, skrue og møtrik monteres i position 3.

DEROS II 550(X), DEROS II 625(X), DEROS II 650(X), DEROS II 750(X)

1. Maskinkonfiguration til brug med pad saver eller interface, skrue og møtrikker monteres i position 1, 2 og 3.

DEROS II 680

Kantbeskytter

Vedligeholdelse

Strømforsyningen skal altid frakobles inden vedligeholdelse! Brug kun originale reservedele fra Mirka!

Wartung

Δήλωσησυμμόρφωσης

Συντήρηση

Declaration of conformity

Mirka Ltd, 66850 Jeppo, Finland

declare under our sole responsibility that the Mirka® products (listed below and see "Technical data" table for particular model) to which this declaration relates are in conformity with the following standards or other normative documents: EN 62841-1:2015+A11:2022, EN 62841-2-4:2014, EN IEC 55014-1:2021, EN IEC 55014-2:2021, EN 61000-3-2:2014, EN 61000-3-3:2013, EN 300 328 V2.2.2, EN 301 489-1 V2.2.3, EN 301 489-17 V3.2.4, EN IEC 63000:2018 in accordance with the regulations 2006/42/EC, 2011/65/EU, 2014/53/EU.

Products: Mirka ^* DEROS II 325, 350, 550, 625, 650, 680 & 750

Jeppo 07.11.2024

Place and date of issue

Manufacturer/Supplier

Mirka Ltd

66850 Jeppo, Finland

Tel.[phone]

Fax [phone]

www.mirka.comStefan Sjöberg, CEOCompany

Original instructions. We reserve the right to make changes to this manual without prior notice.

Important

Read these safety and operating instructions carefully before installing, operating or maintaining this tool. Keep these instructions in a safe and accessible place. Read and comply with state and local regulations.

Required personal safety equipment

Read operator's manual

Wear safety glasses

Wear ear protection

Wear safety gloves

Wear face mask

Symbols

	Complies with EU relevant standards
	Complies with UK relevant regulations
[w8w3]	Complies with Australia & New Zealand RCM requirement
----	Complies with Eurasian conformity requirements
	Complies with Serbian conformity requirements
	Complies with Ukraine conformity requirements
	Complies with Brazilian conformity requirements
	Complies with China RoHS requirement

Warning: Potential hazardous situation that may result in death or serious injury and/or property damage. Caution: Potential hazardous situation that may result in minor or moderate injury and/or property damage.

General Power Tool Safety Warnings

WARNING Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

1. Work area safety

a. Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
c. Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

2. Electrical safety

a. Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
b. Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
c. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
d. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges and moving parts. Damaged or entangled cords increase the risk of electric shock.
e. When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
f. If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

3. Personal safety

a. Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
b. Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
c. Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or plugging in tools when the switch is in the on-position invites accidents.
d. Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
e. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
f. Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
g. If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
h. Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

4. Power tool use and care

a. Do not overload the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
b. Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.

c. Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
d. Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
e. Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool's operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
f. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
g. Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
h. Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

5. Service

a. Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

Only for AS/NZS: Mirka recommend that the tool shall be supplied via a residual current device having a rated residual current of 30 mA or less.

Additional Safety Warnings

• The safety of the tool is granted only by using original Mirka backing pads.
• Read the Materials Safety Data Sheet (MSDS) for the work surface.
• If any physical hand/wrist discomfort is experienced, stop working and seek medical attention. Hand, wrist and arm injury may result from repetitive work, motion and overexposure to vibrations.
• The power supply socket and connector are non-IEC appliance couplers. Only use an original Mirka power supply cable. The Mirka power supply cable can be bought from your Mirka Dealer.
• Check the tool, backing pad, power cord and fittings regularly for wear. If the power supply cable is damaged it must be replaced by an original Mirka power supply cable.
• Clean or replace the dust extractor's collection bag daily. Dust can be highly combustible. Cleaning or replacing the bag also assures optimum performance.
• If the tool appears to malfunction, stop using it immediately and arrange for service and repair.
  • Always ensure that the work piece to be sanded is firmly fixed in place.
• Keep hands clear of the spinning accessory during use.
• Do not allow the tool to free speed without taking precautions to protect surrounding people and objects in the event that the abrasive or backing pad should come loose.

Technical data

							7506806506
Power	300 W	300 W	400 W	400 W	400 W	400 W	400 W
Mains voltage	220 –240 VAC	220 –240 VAC	220 –240 VAC	220 –240 VAC	220 –240 VAC	220 –240 VAC	220 –240 VAC
Speed	4,000 –10,000 rpm	4,000 –10,000 rpm	4,000 –10,000 rpm	4,000 –10,000 rpm	4,000 –10,000 rpm	4,000 –10,000 rpm	6,000 –9,000 rpm
Orbit	2.5 mm (3/32")	5 mm (3/16")	5 mm (3/16")	2.5 mm (3/32")	5 mm (3/16")	8 mm (5/16")	5 mm (3/16")
Size of backing pad	Ø 77 mm (3")	Ø 77 mm (3")	Ø 125 mm (5")	Ø 150 mm (6")	Ø 150 mm (6")	Ø 150 mm (6")	Ø 175 mm (7")
Weight	0.8 kg (1.8 lbs)	0.8 kg (1.8 lbs)	1 kg (2.2 lbs)	1 kg (2.2 lbs)	1.1 kg (2.4 lbs)	1.1 kg (2.4 lbs)	1.1 kg (2.4 lbs)
Degree of protection	|	|	|	|	|	|	|

Noise and vibration information

The measured values may be used for comparing one tool with another and in a preliminary assessment of exposure.

							750680650
Sound pressure level (LpA)	67 dB(A)	67 dB(A)	71 dB(A)	71 dB(A)	71 dB(A)	71 dB(A)	71 dB(A)
Sound power level (LWA)	78 dB(A)	78 dB(A)	82 dB(A)	82 dB(A)	82 dB(A)	82 dB(A)	82 dB(A)
Sound measurement uncertainty KWA	3.0 dB(A)	3.0 dB(A)	3.0 dB(A)	3.0 dB(A)	3.0 dB(A)	3.0 dB(A)	2.5 dB(A)
Vibration emission value ah*	3.1 m/s2	3.3 m/s2	3.2 m/s2	2.4 m/s2	3.4 m/s2	3.5 m/s2	2.8 m/s2
Vibration emission uncertainty KPA*	2.0 m/s2	1.5 m/s2	1.5 m/s2	1.5 m/s2	1.5 m/s2	1.5 m/s2	1.5 m/s2

Specifications subject to change without prior notice. Model range may vary between markets.

* The values stated in the table are derived from laboratory testing in conformity with stated codes and standards and are not sufficient for risk evaluation. Values measured in a particular work place may be higher than the declared values. The actual exposure values and amount of risk or harm experienced by an individual are unique to each situation and depend upon the surrounding environment, the way the individual operates the machinery, the particular material being worked, work station design and the user's exposure time and physical condition. Mirka accepts no responsibility for the consequences of using declared values instead of actual exposure values for any individual risk assessment.

Further occupational health and safety information can be obtained from the following websites:

https://osha.europa.eu/en (Europe) or http://www.osha.gov (USA)

Work stations

The tool is intended to be operated as a hand-held tool. It is always recommended that the tool should be used when standing on a solid floor. It can be in any position but before any such use, the operator must be in a secure position, having a firm grip and footing and be aware that the tool can develop a torque reaction. See the section "Operating instructions".

How to get started

When unpacking the tool, make sure it is intact, complete and has not been damaged in transport. Never use a damaged tool.

Before use, check that the backing pad is correctly attached and tightened. Connect the power cord to the tool. Connect the power cord to a grounded outlet (220 –240 VAC, 50–60Hz).

In order to get the maximum power from this tool it is recommended to use it with the Mirka dust extractor (or other suitable dust extraction unit) and Mirka net sanding products. The combination of Mirka sanders, Mirka net sanding products and Mirka dust extractor are the basis of Mirka dust-free sanding solutions.

The power cord from the tool is connected to the mains supply of the dust extractor. By connecting the tool's power cord to the outlet on the dust extractor it is possible to use the dust extractor's autostart function.

Operating instructions

• The tool is intended to be operated as a hand held tool. The tool can be used in any position. Note! The sander can develop a torque reaction when started.
• Make sure the sander is switched off. Select a suitable abrasive and secure it to the backing pad. Make sure the abrasive is centred on the backing pad. For optimal performance we recommend a Mirka backing pad and Mirka Net Sanding product.
• Switch on the sander by pressing the On/Off key, see Figure 1. The sander Multi-purpose LED is now flashing green, see Figure 1.
  • The sander can now be started by pressing the lever.
  • The speed can be adjusted between 4,000 rpm and max by adjusting the position of the lever.

• The max rpm can be adjusted by pressing speed+ or speed-, see Figure 1. Each press increases or reduces the speed by 1,000 rpm (DEROS II 750: 500 rpm) until it reaches the limits. For model specific rpm limits, please see technical data chapter.

• The tool has two speed control modes. In the default mode the speed can be adjusted linearly by changing the position of the lever. In the other mode the speed remains fixed at the set max rpm when the tool is running. When the rpm+ and rpm- buttons are pressed simultaneously the tool toggles between the two controlling modes.

• When sanding, always place the tool on the work surface before starting the tool. Always remove the tool from the work surface before stopping it. This will prevent gouging of the work surface due to excess speed of the abrasive.
• When sanding is finished, turn off the sander by pressing the On/Off key. All LEDs are turned off except wireless indication LED, if the tool is connected.

Bluetooth

NOTE! Not applicable for models without Bluetooth.

	2402-2480Frequency (MHz)
RF Output power (EIRP, dbm)	9
Highest Reported SAR10g value for body-worn/Limb exposure condition (W/kg)	0.00016

This tool is equipped with Bluetooth ^® low energy technology and can be connected to MyMirka app through which additional tool functionality can be accessed. For more information on the app functionality and if it is available in your country, go to www.mirka.com/mymirka

Activate Bluetooth on your Mirka® DEROS II as follows:

1. Connect the power cord to mains outlet.
2. Press and hold the Speed+ button while switching the tool on with the On/Off button.
3. Wireless indication LED starts blinking blue, to indicate that Bluetooth is active. The LED turns solid when connection is established.
4. Bluetooth is deactivated when the tool is disconnected from mains outlet.

NOTE! If the app is not installed or if it is not available in your country, Bluetooth shall not be activated.

The Bluetooth ^® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Mirka Ltd is under license. Other trademarks and trade names are those of their respective owners.

Reducing vibration when sanding with pad saver or interface

The level of vibration may increase when sanding with a pad saver or interface. Your Mirka tool has a feature to reduce this vibration. To use this feature, please follow these steps:

1. Disconnect power cable.
2. Remove backing pad.
3. Add hex nuts and screws in accordance with the pictures below, tighten to 2 Nm.

Note! If the sander is used with an interface it is recommended that the speed is set to a maximum of 7,000 rpm.

1. Machine configuration out of box, no screws or nuts.

1. Machine configuration for use with pad saver or interface, screw and nut installed in position 3.

DEROS II 550(X), DEROS II 625(X), DEROS II 650(X), DEROS II 750(X)

1. Machine configuration for use with pad saver or interface, screws and nuts installed in positions 1,2,3.

DEROS II 680

Edge protector

The edge protector is a accessory that can be attached to the machine to prolong the lifetime of the backing pad due to the pad not being in contact with materials. Using the Edge Protector when sanding into corners and edges, the backing pad doesn't scratch or damage adjacent surfaces.

Attaching the edge protector (if provided)

1. Disconnect power cable and place the machine on a flat surface.
2. Attach the edge protector by stretching both ends outwards a little and mount it onto the sander.
3. Check that the brake seal is still in place.

Maintenance

Always disconnect the power before maintenance!

Only use original Mirka spare parts!

Replacing the backing pad

1. Insert the pad wrench between the backing pad and brake seal to hold the spindle nut.
2. Turn the backing pad counterclockwise to remove it.
3. Fit and tighten the new backing pad with washers.
4. Remove the pad wrench.

Pad saver

Mirka pad savers are designed to protect the backing pad from wear and tear, when sanding aggressively and continuously with net products. These cost effective pad savers, placed between the backing pad and the sanding disc, should be changed regularly. The pad savers prolong the life of the backing pad.

Replacing the brake seal

1. Remove the backing pad as described above.
2. Pull the old brake seal out of its groove.
3. Fit the new brake seal in the groove.
4. Fit the backing pad as described above.
5. Check the brake seal function. By changing the number of washers between the spindle and backing pad, the effect of the brake seal can be adjusted.

Further service

Servicing must always be performed by trained personnel. To keep the tool warranty valid and ensure optimal tool safety and function, servicing must be carried out by a Mirka authorized service centre. To locate your local Mirka authorized service centre, contact Mirka Customer Service, your Mirka dealer or go to www.mirka.com

Troubleshooting guide

		SolutionPossible causeSymptom
The Multi purpose LED flashes between red and green.	Connected to a mains outlet with wrong voltage.	Connect the toolto a mains outlet that correspond with the nominal voltage of the tool.
No light from Multi purpose LED when switched on.	Power cord not properly attached to the tool or to the mains socket.	Connect it properly.
The Multi purpose LED is red and thetoolslows down totheminimum speed setting when sanding.	Temperature too high in the toolToo heavy long term load.	Reduce the load on the tool for some time and the tool will speed up again.
The Multi purpose LED is red and rpm is slightly reduced.	Too heavy short term load.	Use lighter load and the LED (right) will automatically change to green.
Brake seal does not work.	Worn out brake seal or damaged spindle bearing.	Check and replace brake seal or spindle bearing if necessary
The tool has stopped and the Multi purpose LED is red.	The tool is in safety mode due to high temperature.	Wait until the tool has cooled down.

Disposal information

DANGER

Render redundant power tools unusable by removing the power cord.

Observe applicable country-specific regulations regarding disposal and recycling of disused machines, packaging and accessories.

EU only: Do not dispose electric power tools in house-hold waste. According to European Directives on waste electrical and electronic equipment and its implementation under national law, electric tools that have reached the end of their life must be collected separately and taken to an environmentally compatible recycling facility.

For more information regarding REACH, RoHS and our corporate social responsibility visit www.mirka.com

Mantenimiento

Hooldus

Kunnossapito

DEROS II 550(X), DEROS II 625(X), DEROS II 650(X), DEROS II 750(X)

Maintenance

1. Konfiguracija uređaja prilikom raspakivanja, bez matica ili vijaka.

1. Konfiguracija uređaja za upotrebu pomoću štitnika ploča ili sučelja, vijak i matica postavljeni u položaj 3.

DEROS II 550(X), DEROS II 625(X), DEROS II 650(X), DEROS II 750(X)

1. Konfiguracija uređaja za upotrebu pomoću štitnika ploča ili sučelja, vijci i matice postavljeni u položaje 1, 2, 3.

DEROS II 680

Štitnik za rubove

Održavanje

Karbantartás

Manutenzione

Viðhald

유지관리

techninėpriežiūra

Padariet nolietotos elektroinstrumentus neizmantojamus, nonemot strāvas kabeli.

1. Конфигурацијанамашинатаза употребасоштитникзаподлогаили подметка, заврткиинавртки инсталиранивопозиции1, 2, 3.

DEROS II 680

Штитникзарабови

Одржување

Onderhoud

Vedlikehold

Konserwacja

Manutenção

Stefan Sjöberg, Director ExecutivCompania

Producător/Furnizor

Mirka Ltd

66850 Jeppo, Finlanda

Tel. [phone]

Fax [phone]

www.mirka.com

Întreținerea

1. Konfiguracija naprave ob dobavi, brez vijakov ali matic.

1. Konfiguracija naprave za uporabo s ščitnikom blazinic ali vmesnikom; vijak in matica sta nameščena na položaju 3.

DEROS II 550(X), DEROS II 625(X), DEROS II 650(X), DEROS II 750(X)

1. Konfiguracija naprave za uporabo s ščitnikom blazinic ali vmesnikom; vijaki in matice so nameščeni na položajih1, 2, 3.

DEROS II 680

Robni ščitnik

Vzdrževanje

1. Fabrička konfiguracija mašine, bez zavrtnja i navrtki.

1. Konfiguracija mašine za upotrebu sa štitnikom podloge ili umetkom, zavrtanj i navrtkapostavljeni u položaj 3.

1. Konfiguracija mašine za upotrebu sa štitnikom podloge iliumetkom, zavrtnji i navrtke postavljeni u položaje 1, 2, 3.

DEROS II 680

DEROS II 550(X), DEROS II 625(X), DEROS II 650(X), DEROS II 750(X)

Štitnik za ivice

Štitnik za ivice je dodatak koji se može pričvrstiti na mašinu kako bi se produžio životni vek potporne podloge, jer podloga nije u kontaktu sa materijalima. Koristeći štitnik za ivice prilikom brušenja uglova i ivica, podloga se ne grebe i ne oštećuje susedne površine.

Postavljanje štitnika za ivice (ako je priložen)

1. Isključite kabl za napajanje i postavite mašinu na ravnu površinu.
2. Pričvrstite štitnik za ivice tako što ćete malo razvući oba kraja prema spolja i montirati ga na brusilicu.
3. Proverite da li je zaptivka kočnice i dalje na mestu.

Održavanje

Underhåll

Bakım

1. 开箱卸用的机器配置，无螺丝或螺母。

Manutenção

Declaration of conformity

Mirka Ltd, 66850 Jeppo, Finlanddeclare under our sole responsibility that the Mirka® products (listed below and see "Technical data" table for particular model) to which this declaration relates are in conformity with the following standards or other normative documents: BS EN 62841-1:2015+A11:2022, BS EN 62841-2-4:2014, BS EN 55014-1:2021, BS EN 55014-2:2021, BS EN 61000-3-2:2014, BS EN 61000-3-3:2013, BS EN 300 328 V2.2.2, BS EN 301 489-1 V2.2.3, BS EN 301 489-17 V3.2.4, EN IEC 63000:2018 in accordance with the regulations Supply of Machinery (Safety) Regulations 2008, The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012, Radio Equipment Regulations 2017.
Products: Mirka® DEROS II 325, 350, 550, 625, 650, 680 & 750
Jeppo 07.11.2024Place and date of issue	Company	Stefan Sjöberg, CEO
Manufacturer / SupplierMirka Ltd66850 Jeppo, FinlandTel. [phone]Fax [phone]www.mirka.com	Importer InformationMirka (UK) LtdSaxon HouseShirwell CrescentFurzton LakeMilton KeynesMK4 1GATel. [phone]

This chapter is an addition to the English language chapter of the manual in order to fulfill the UKCA regulation requirements. Please refer to the English language chapter for more information about your product.

Statement of Compliance

We Mirka Ltd, hereby declare under our sole responsibility that the above-mentioned products, to which this statement relates, complies with the compliance conditions in Schedule 2 of The Product Security and Telecommunications Infrastructure (Security Requirements for Relevant Connectable Products) Regulations 2023.

The defined support period for the above-mentioned products is two years after the production date. The production date can be found on the marking plate of the products month/year.

MirkaLtd

Finland

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Finland&BalticsMirkaLtd

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GermanyMirkaGmbH

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ItalyMirkaltalias.r.l., CafroS.p.A.

MexicoMirkaMexicanaS.A.deC.V.

NetherlandsMirkaBeneluxB.V

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SingaporeMirkaAsiaPacificPteLtd

SpainKWHMirkalbéricaS.A.U.

SwedenMirkaScandinaviaAB

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USAMirkaUSAInc.

Forcontactinformation,

pleasevisitwww.mirka.com