Assembly – Delta 8" VARIABLE SPEED GRINDER GR450 User Manual

Page 8

ASSEMBLY TOOLS REQUIREd

Open end wrench (supplied)

ASSEMBLY TIME ESTIMATE

Assembly for this machine takes approximately 30 minutes.

TOOL RESTS

Attach the adjustable tool rest (A) Fig. 1 to the
left side of the tool rest arm (B), and fasten with
one 5/16-18 x 3/4" hex head screw (C) and 5/16"
lockwasher (D). Attach the remaining tool rest
to the right side of the tool. Loosely tighten the
hardware for further adjustment.

Attach the left tool rest assembly (D) Fig. 2 to the
inside of the left wheel guard (E), and fasten with
two 5/16-18 x 1/2" screws (F) and 3/4" flat washers
(G).

Attach the right tool rest assembly to the inside of
the right wheel guard and fasten with two 5/16-
18 x 1/2" hex head screws and 3/4" flat washers.

Each tool rest assembly (D) Fig. 4 is adjustable.
Each can be positioned slightly below the center-
line of the wheel and as close to the grinding
wheel as possible, giving maximum support to
the workpiece. Maintain a distance of 1/8" or less
between the grinding wheel and the inside edge of
the tool rest. Adjust the tool rest when the grinding
wheel wears down. When the tool rest is positioned
correctly, tighten the hardware, (C) and (F) Fig. 2.
Freehand grinding without the use of a tool rest
should always be done on the lower quarter of the
wheel.

SPARk GUARdS

The spark guard (A) Fig. 3 is mounted to the side of each
wheel guard, using a 1/4-20 x 1/4" hex head screw (B)
Fig. 3 and a 1/4" flat washer (C).
NOTE: The tab (D) Fig. 3 on the side of the spark guard
(A) must be placed in slot (E), before attaching the spark
guard (A) to the grinder.
Adjust the spark guard (A) as close as possible to the
grinding wheel so that sparks never strike the operator’s
hand. As the wheels wear down, adjust the spark guard
(A) accordingly.

ASSEMBLY

For your own safety, do not connect the machine to the power source until the machine is

completely assembled and you read and understand the entire instruction manual.

Fig. 1

Fig. 2

Fig. 3