Bosch GCM12SD Operating/Safety Instructions Manual page 36

2610051827 GCM12SD 08-18.qxp_GCM12SD 9/19/18 2:52 PM Page 36
Making an Auxiliary Fence
Certain types of molding need a fence face ex-
tension because of the size and position of the
workpiece. Holes are provided in the fence to
attach an auxiliary fence. The auxiliary fence is
used with the saw in the 0° bevel position only.
1.Place a piece of wood against the miter saw
fence (see Figure 37). Wood can have a max-
imum height of 5-1/2". Check that auxiliary
fence assembly does not interfere with head
assembly. See dimension drawing –Figure 38.
and saw head componenents by performing a
dry run. Fence interference can prevent proper
saw operation and cause injury and/or tool
damage.
2.Mark the locations of the support holes on
the wood from the back side of the fence.
3.Drill and countersink the holes on the front
of the support board.
4.Fasten from front of fence: Attach (each) aux-
iliary fence using two (2) 3/16" flat head ma-
chine screws. With 3/4" auxiliary fence, use
1-1/2" long screws. Secure behind metal
fence with washer and machine nuts.
Fasten from back of fence: With 3/4" auxiliary
fence, use 1/4" round head wood screws
(3/4" long). Drill four pilot holes through aux-
iliary fence and run screws from rear of metal
fence.
run with the saw Off by conducting a simu-
lated cutting cycle, and observe the projected
path of the saw blade. Keep hands at least six
(6) inches away from the projected path of
the saw blade.
36
Preparing for Saw Operations
Check for interference
between auxiliary fence
Be aware of the path of
the saw blade. Make a dry
Fig. 37
Auxiliary
Fence
Flat Head Machine Screws
5.Make a full depth cut to create the blade slot.
Check for interference between the auxiliary
fence and the lower blade guard. Make ad-
justments as necessary.
6.For best splinter-free cuts, use the chop cut
method.
7.When making slide cuts, the center must be
notched out per pattern (see Figure 38).
Blade Slot