340 Snyder Avenue, Berkeley Heights, NJ 07922
www.micromark.com MMTechService@micromark.com
OPERATING INSTRUCTIONS FOR #82889
5” DISK SANDER
SAFETY PRECAUTIONS
When using this tool, basic safety precautions and common sense
should be followed to avoid personal injury:
• Do not use in damp or wet locations.
• Plug power cord into grounded (three prong) wall receptacles or
extension cords only. Do not remove the third (ground) prong from
the power cord in order to use with ungrounded outlets or
extension cords.
• Keep children away.
• Wear safety glasses.
• Do not stand in the path of flying particles and sanding debris.
• To avoid potentially harmful kickback, sand on the side of the disk
that forces the workpiece down against the table.
• Store out of reach of unauthorized users (such as children).
• Do not use the tool to do jobs that are beyond its intended use or
design capability.
• Do not push too hard on the worktable or the machine may tip.
MM010405
340 Snyder Avenue, Berkeley Heights, NJ 07922
Tech Support: 908-464-1094
www.micromark.com MMTechService@micromark.com
SET UP
Before operating your sander, check that shipment of the sander to
you has not shifted the disk out of alignment with the slot in the
table. Use a precision scale (ruler) or depth gauge of a caliper to
measure the distance from the surface of the disk to the leading
edge of the miter slot. Take this measurement from the left-most
and right-most edges of the disk. If these measurements are not
identical, then the motor needs to be shifted slightly to realign the
sander...as follows:
First verify that the sander is unplugged from the electrical power
source. Check that the two small hex head screws (item no.16)
acting as left and right table pivots are snug enough to minimize
play, but not so tight as to prevent the table from pivoting. Then
remove the bottom cover plate by removing the bottom screw (21).
Slightly loosen the two screws (24) that secure the motor to the
base just enough so that the motor may be shifted slightly to make
the disk parallel to the miter groove in the table. Then retighten the
screws and replace the bottom cover plate.
OPERATION
Plug in the sander and turn the power switch to the ON position
(to the “I”). Allow the motor to come up to full speed before sanding.
Use light pressure when pushing against the sanding disk to avoid
overloading the motor or burning the workpiece. Be careful not to
press down so hard as to tip the machine forward.
Use a square or angle gauge to set the angle of the miter gauge.
When using the sander to grind metal, keep the metal cool by
occasionally dipping in water. If hardened steel turns blue while
sanding, it has been softened, and its cutting edges will not last long.
To change sandpaper, first sand a piece of hardwood to heat up
the paper slightly. This will make the self-stick adhesive soften so
it is easy to strip it from the disk. (Note: An excellent solvent for the
disk adhesive is Permatex Gasket Remover…available at auto
parts stores.)
To apply a new disk, first remove the work table. Then stick the new
sandpaper to the metal disk. Replace the worktable.
1 Motor 1
2 Aluminum disk 1
3 Sandpaper disk 1
4 Knob 1
5 Big washer 1
6 Miter gauge 1
7 Hex nut M4 1
8 Screw M4 x20 1
9 Guide bar 1
10 Work table 1
11 Screw M3x 61
12 Angle gauge 1
13 Support bracket 1
14 Clamp 1
15 Screw M5x12 2
16 Screw M3 x82
17 Pin 2.5x10 1
18 Knob 1
19 Rubber foot 3
20 Nut M5 3
21 Screw M5 x40 1
22 Cover plate 1
23 Spacer 1
24 Screw M5x16 2
25 Big washer 2
26 Base casting 1
27 Screw M5x10 1
28 Cap screw M5x20 3
29 Washer 3
30 Switch base plate 1
31 Switch 1
32 Screw M3 x62
33 Bushing 1
34 Washer 2
35 Line cord 1
No. Description Qty. No. Description Qty. No. Description Qty.
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