Accessories - Bosch GCM12SD Operating/Safety Instructions Manual

2610051827 GCM12SD 08-18.qxp_GCM12SD 9/19/18 2:52 PM Page 61
PROBLEM
Tool vibrates or shakes.
Head assembly does not
slide freely when attempting
a slide cut.
Blade does not cut com-
pletely through workpiece.
Saw blade or lower guard
cuts or contacts sliding fence
when saw is set for bevel
cuts.
Bevel angle is not securely
held when bevel lock lever is
locked.
GAM 220 MF and GAM 270 MFL Digital Angle
Finder/Compound Cut Calculator/Protractor/
Level – Gives you the information needed to po-
sition cuts so that they fit together precisely
even if the room is out of square.
MS1233 Crown Stop Set – Correctly hold
crown molding in an inclined position against
fence. Set molding for simple vertical cutting –
no compound cutting required.
Troubleshooting
Troubleshooting Guide - General
CAUSE
1. Saw blade not round.
2. Saw blade damaged.
3. Saw blade loose.
4. Other
Mechanism lock lever is
engaged.
1. Depth stop plate is pulled
out for non-through cuts.
2. Replacement blade is less
than 12" diameter.
Sliding fence is not moved
out from path of saw blade
before making bevel cut.
Bevel lock lever needs ten-
sion adjustment.
Attachments/Accessories
CORRECTIVE ACTION
- Replace blade.
- Replace blade.
- Check that blade is prop-
erly seated on the inner
washer. See Removing and
Installing Blades on pages
16-17.
- Authorized service.
Push down on mechanism
lock lever to disengage (see
page 21).
- Push depth stop plate in-
ward to set for full-depth
cuts (see page 22).
- Change to a blade that is
fully 12" diameter.
Move sliding fence to be
clear of lower guard and saw
blade; perform a "dry cut" to
check for clearances before
making bevel cuts (see pages
44-47).
Increase bevel lock lever
tension by adjusting lock nut
(see page 28).
T1B Portable Miter Saw Stand
GTA3800 Portable Miter Saw Stand with
Wheels
T4B Gravity-Rise Wheeled Miter Saw Stand
MS1234 Length Stop Kit
Blades
61