Table Of Contents - Bosch 3912 Operating/Safety Instructions Manual

"READ ALL INSTRUCTIONS" - Failure to follow the SAFETY RULES identified by BULLET (l) symbol listed
WARNING
!
BELOW and other safety precautions, may result in serious personal injury.
Double Insulated Tools
Double insulation is a design concept used in electric
power tools which eliminates the need for the three wire
grounded power cord and grounded power supply system. It
is a recognized and approved system by Underwriter's
Laboratories, CSA and Federal OSHA authorities.
• Servicing of a tool with double insulation requires care
and knowledge of the system and should be performed
only by a qualified service technician.
• WHEN SERVICING,
REPLACEMENT PARTS.
• POLARIZED PLUGS. If your tool is equipped with a
polarized plug (one blade is wider than the other), this
plug will fit in a polarized outlet only one way. If the plug
does not fit fully in the outlet, reverse the plug. If it still
does not fit, contact a qualified electrician to install the
proper outlet. Do not change the plug in any way.
"SAVE THESE INSTRUCTIONS"
Safety .........................................................................2-6
General Safety Rules for Benchtop Tools .............2-3
Safety Rules for Miter Saws...................................3-6
Table of Contents ........................................................6
Electrical Requirements .............................................7
Getting to Know your Miter Saw ............................8-9
Assembly...............................................................26-32
Tools needed for Assembly and Alignment............26
Unpacking and Checking Contents ........................28
Installation of Miter Lock Knob ................................28
Installation and removal of the Blade......................30
Assembling Dust Elbow and Dust Bag ...................32
Adjustments..........................................................34-44
Blade square to Table (90°) ....................................34
Blade 45° to Table...................................................36
Blade Square to Fence............................................38
Miter Scale and Vernier Scale Usage.....................40
Miter Scale (Vernier) Indicator Adjustment.............42
Crown Molding Detent Adjustment (Bevel).............42
Safety
USE ONLY IDENTICAL

Table of Contents

Page
Extension Cords
• Replace damaged cords immediately. Use of damaged
cords can shock, burn or electrocute.
• If an extension cord is necessary, a cord with adequate
size conductors should be used to prevent excessive
voltage drop, loss of power or overheating. The table
shows the correct size to use, depending on cord length
and nameplate amperage rating of tool. If in doubt, use
the next heavier gauge. Always use U.L. and CSA listed
extension cords.
RECOMMENDED SIZES OF EXTENSION CORDS
Tool's
Ampere
Rating
3-6
6-8
8-10
10-12
12-16
NOTE: The smaller the gauge number, the heavier the cord.
Installation............................................................44, 46
Mounting Applications .............................................46
Basic Saw Operations .........................................48-54
Body and Hand Position..........................................48
Workpiece Support............................................50, 52
Switch Activation .....................................................52
Detent Override .......................................................54
Sliding Base/Fence Extension ................................54
Saw Operations ....................................................56-72
Miter Cut ..................................................................56
Bevel Cut .................................................................58
Compound Cuts ......................................................60
Base Molding...........................................................62
Cutting Crown Molding............................................65
Special Cuts.............................................................72
Accessories................................................................74
Maintenance and Lubrication ............................76, 78
Trouble Shooting.................................................80, 82
6
120 Volt A.C. Tools
Cord Length in Feet
Cord Size in A.W.G.
25 50 100 150
18 16 16 14
18 16 14 12
18 16 14 12
16 16 14 12
14 12 -
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