Replacing The Backing Pad - MIRKA DEROS 550CV Instrucciones De Manejo

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 pad is correctly mounted and tightened . Connect the power cord to the sander . Connect
the power cord to an earthed outlet (220–240 VAC, 50 Hz) .
In order to get the maximum power from this tool it is recommended to use it with the Mirka vacuum cleaner
912/915 (or other suitable dust extraction unit) and Mirka Net Sanding products . The combination of MIRKA sanders,
net sanding products and Mirka vacuum cleaner are the basis of MIRKA dust-free sanding solutions .
The power cord from the sander is connected to the mains supply on the front of the vacuum cleaner . By connecting
the sander's power cord to the outlet on the vacuum cleaner it is possible to use the vacuum cleaner's autostart
function .
Operating instructions
• T he 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 .
• M ake 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 pad . For optimal performance we recommend a MIRKA backing pad and Mirka Net
Sanding product .
• S witch on the sander by pressing the On/Off key, Figure 1. The sander LED is now green.
• T he sander can now be started by pressing the lever.
• T he speed can be adjusted between the 4,000 and max RPM by adjusting the position of the lever.
• T he max RPM can be adjusted by pressing RPM+ or RPM –, Figure 1. Every press adds or removes 1,000 RPM until it
reaches the limits . The RPM can be adjusted in the range 4,000 to 10,000 RPM .
• T he 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– keys are pressed simultaneously the tool toggles between the two controlling modes .
• W hen 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 .
• W hen sanding is finished, turn off the sander by pressing the On/Off key. The sander LED is now turned off.
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 two washers .
4 . Remove the pad wrench .
Replacing the brake seal
NOTE! Too much vacuum in your dust extraction system may cause the brake seal to malfunction .
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 .
Mirka® DEROS • 125 mm (5 in.) & 150 mm (6 in.)
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