Operating Instructions; Adjustable Depth Stop; Tuckpointing Guard; Dust Extraction - Bosch TG503 Operating/Safety Instructions Manual

Hold the tool with both hands while starting the tool, since torque from the
motor can cause the tool to twist.
Start the tool before applying to work and let
the tool come to full speed before contact-
ing the workpiece. Lift the tool from the work
before releasing the switch. DO NOT turn the
switch "ON" and "OFF" while the tool is under
load; this will greatly decrease the switch life.

Adjustable Depth Stop

(Fig. 1)
Your tool is equipped with an adjustable stop.
Your cutting depth can be pre-set and/or re-
peated by using the depth stop (Fig. 1).
1. Loosen the depth stop lock knob.
2. Depress adjustable depth stop button,
move to desired position on depth bracket,
and release button to secure stop in place.
3. Place foot against workpiece, push down
on tool until it stops.
4. To secure and hold foot and guard assem-
bly at desired depth of cut. Move foot to
desired depth of cut and securely tighten
the depth stop lock knob.

Tuckpointing Guard

(Fig. 1)
Tuckpointing guard must be
attached when using Type
41/1A Diamond wheels. Always keep guard
be tween you and your work while grinding.
Position the guard such that the Dust Port 4
does not interfere with the On/Off switch.
To adjust guard, loosen clamp screw and rotate
guard to desired position, and securely tighten
screw. Always keep the wheel guard between
you and your work when during operation.

Dust Extraction

(Fig. 1)
This tool must only be used with a dust extrac-
tion system. Always wear approved respiratory
protection.
Your tool is equipped with a Dust Port 4 for dust
extraction. To use this feature, insert vacuum
hose (optional accessory) into the Dust Port 4
and connect the opposite end of the hose to
TG503 Tuck Point Grinder Guard OSI Final 20230606.indd 21 TG503 Tuck Point Grinder Guard OSI Final 20230606.indd 21

Operating Instructions

a shop vacuum cleaner. For non-Bosch vacuum
hoses an adapter is required. Place adapter in
Dust Port 4.
Always make sure the vacuum cleaner that you
use is designed for extraction of masonry dust.

Auxiliary Handle

The auxiliary handle, used to guide and balance
the tool must be secured to the side of the tool
not facing the wall. Always use the auxiliary
handle for maximum control and ease of opera-
tion.

Tuckpointing

This tool is intended to be used as a tuckpoint-
er. It is used to remove deteriorating mortar
joints so that they can be replaced with new
mortar.
For best tuckpointing results use tuckpoint de-
signed sandwich diamond wheels.
Use the adjustable depth stop to obtain the de-
sired depth of mortar removal. The tuckpointer
is held with the guard window facing upward
so that the user can easily see the joint during
operation.
Allow the tool to reach full speed before apply-
ing it to the workpiece surface.
Hold the tool with both hands and apply the
abrasive wheel to the mortar surface.
If this tuckpointer is being used as a small abra-
sive cutoff machine, the tool is only approved
for cutting or scoring masonry products like
concrete, cinder blocks, bricks, and stone.
Fig. 21
-21-
6/6/2023 1:43:04 PM 6/6/2023 1:43:04 PM