
E-SEC,2EC,2GC-P,4EC,GC,GCP-I-0808
Printed in USA
©2008 TVW
Page 10
100 Thomas Johnson Drive, Frederick, MD 21702-4600 USA
Phone (301) 663-1600 • 1-800-638-3326
Fax (301) 663-1607 • 1-800-447-3326
Website: www.edcoinc.com
INSTRUCTIONS FOR CHANGING ACCESSORIES
1. Disconnect the machine from the power source before
performing any work on the equipment. To disconnect the
power source remove the spark plug lead on gasoline
and propane models or unplug the electrical models at
the grinder.
2. Tip Grinder back on the handle until handle remains on
contact with the slab. NOTE: FOR GASOLINE MODELS,
TAKECARETHATGASOLINEOROILDOESNOTSPILL
FROM THE ENGINE, Turn gasoline cutoff valve off.
Brace securely or have someone hold the handle against
the slab. The grinding discs will be visible and accessable
for inspection and installation of accessory items.
3. Installing Multi-disc assemblies (for use with scarifiers,
silabide pads, wire brushes and Dyma-Serts). The multi-
discs are designed as lefthand (LH) or righthand (RH)
depending on the direction of rotation: the LH is on the left
side(clockwise) andRH ison theright side(counter clock-
wise) as viewed from the bottom side of the machine. The
single disc grinders use the RH disc. NOTE: Multi-Discs
come standard with the EDCO grinders in this manual.
The multi-disc assemblies use a 3/8” dia. x 2” long roll pin
to attach them to the shaft(s) under the grinder (refer to
page 11).
4. When installing the surfacer disc assemblies instead
of the Multi-disc assemblies (refer to figure 7). The discs
are triangular and must be allowed to pass each other
without colliding.
5. Installing grinding stones. Grinding stones are used on
the multi-disc assembly. A total of 3 stones are used with
each multi-disc and are held in place with a hardwood
wedge. The wedges are placed on the inside of the stone
(refer to page 10). Use a second wedge and hammer or
mallet to drive the wedge securely into place.
6. Installing wire brushes. The steel wire brushes are
used on the multi-disc assembly (3 per multi-disc). They
are held in place with a hardwood wedge driven in on the
inside of the brush toward the center of the disc, refer to
the previous page.All accessories are held in place in the
same manner.
7. Installing Scarifiers. The scarifier assemblies consist
of disposable scarifiers and a reusable scarifier case. The
case is held into the multi-disc assembly with a hardwood
wedgedrivenin on the insideof the casetoward the center
of the disc, refer to the previous page. All inserts are held
in place in the same manner.
The scarifiers can be added or removed from the case
withoutdisturbingthe case. Oneend of thescarifieris short
andhasa tab.The tab issimplyinserted under thelip of the
case and the other end is pressed into the spring loaded
slot and seated firmly. Refer to diagram on page 11.
To remove the scarifier from the case, simply pry the
rounded end of the frame out of the spring loaded slot.
Installing Dyma-Serts: TheDyma-Sert assemblyconsists
ofadisposableDyma-Sertcutter,a shock absorbing rubber
block, and a reusable Dyma-Sert case. Three Dyma-Sert
assemblies are used on each multi-disc. The case is held
on the multi-disc assembly by using a hardwood wedges
driven in on the inside of the case. Refer to diagram on
page 11.
The Dyma-Serts can be added or removed from the reus-
able case. One end of the Dyma-Sert has a lip. The lip is
simply inserted under the lip of the case and the other end
is pressed into the spring loaded slot at the other end and
seated firmly. Refer to page 11.
Figure 7
Allignment of Surfacer Disc
Assemblies on 4EC/GC Models