Basic X-Lock Operation - Bosch TG503 Operating/Safety Instructions Manual

Basic X-Lock Operation

(Fig. 10, Fig. 11)
The X-Lock system is a combination of patented
tool mount and Wheel 14 designs that provide
the operator with fast Wheel 14 changes. Avail-
able on select Bosch angle grinders, X-Lock al-
lows tool free installation and removal of grind-
er Wheels 14 (grinding, cut-off wheels, wire
brushes, sanding discs, etc.). The X-Lock sys-
tem is a replacement for the traditional method
of attaching grinder Wheels 14.
Traditional grinders have 5/8"-11 threaded
spindles that require a nut and backing flange
to hold the Wheel 14 in place. To replace a
Wheel 14, a wrench is used to loosen or tighten
the nut. X-Lock equipped grinders have a tool
free interface system, eliminating the spindle,
backing flange and lock nut.
The X-Lock interface has a tool component – X-
Lock Wheel Mount 17, and a Wheel 14 compo-
nent – typically a Wheel X-Lock Mounting Hub
15. The two components have keyed Alignment
Contours 16, which help to ensure correct as-
sembly of the wheel to the tool.
The X-Lock Wheel Mount 17 on the tool consists
of a round Base 37, Clamping Height Gages 35
and a locking mechanism, which activates the
Clamping Tabs 36. X-Lock-equipped grinders
can only use X-Lock Wheels 14 since the spe-
cially designed X-Lock Mounting Hub on Wheels
15 matches the contours of the X-Lock Wheel
Mount 17 on the tool. (See Fig. 10.) However,
select X-Lock Wheel 14 are backward compat-
ible with the traditional threaded spindle de-
sign.
Attachment of the X-Lock Wheel 14 to the X-
Lock Wheel Mount 17 on the grinder requires
alignment of the Wheel's X-Lock Mounting Hub
15 with the X-Lock Wheel Mount 17 on the tool.
Once the Wheel's X-Lock Mounting Hub 15 is
aligned, and pressed against the base of the
X-Lock Wheel Mount 17, the locking mecha-
nism is activated. This causes the two opposing
Clamping Tabs 36 to lock the Wheel 14 to the
grinder. An audible 'click' in combination with
the alignment of the flat surface of the Wheel's
X-Lock Mounting Hub 15 with the Clamping
Height Gauges 35 means the Wheel 14 is firm-
ly attached to the tool. To remove the Wheel
14, the X-Lock Release Lever 38 on the grinder
gearhead is actuated which will release the
Clamping Tabs 36, allowing the Wheel 14 to be
TG503 Tuck Point Grinder Guard OSI Final 20230606.indd 16 TG503 Tuck Point Grinder Guard OSI Final 20230606.indd 16
Assembly
detached from the tool (Fig. 11). To activate the
X-Lock Release Lever 38, push down
simultaneously pulling up
Fig. 10
17
36
35
Fig. 11
38
-16-
(Fig. 11).
15
16
16
35
36
37
14
6/6/2023 1:43:02 PM 6/6/2023 1:43:02 PM
while
14
17