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Instruction
manual
MODEL 748 with
Dual Cutting Action,
Keyless Quik-Change™
Blade Clamp,
Keyless Quik-Change™
Guide Shoe
MODEL 746 with
Keyless Quik-Change™
Blade Clamp,
Keyless Quik-Change™
Guide Shoe
MODEL 745
Double Insulated Variable
Speed TIGER
Purpose Saws
Please make certain that the person who
®
is to use this equipment carefully reads
and understands these instructions before
starting operations.
SAW ® All-
IMPORTANT
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Table of Contents
Related Manuals for Porter-Cable 748
Summary of Contents for Porter-Cable 748
- Page 1 Double Insulated Variable Instruction SAW ® All- manual Speed TIGER Purpose Saws MODEL 748 with Dual Cutting Action, Keyless Quik-Change™ Blade Clamp, Keyless Quik-Change™ Guide Shoe MODEL 746 with Keyless Quik-Change™ Blade Clamp, Keyless Quik-Change™ Guide Shoe MODEL 745 IMPORTANT Please make certain that the person who ®...
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Page 2: Safety Guidelines - Definitions
SAFETY GUIDELINES - DEFINITIONS It is important for you to read and understand this manual. The information it contains relates to protecting YOUR SAFETY and PREVENTING PROBLEMS. The symbols below are used to help you recognize this information. indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. -
Page 3: General Safety Rules
GENERAL SAFETY RULES Read all instructions. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. The term "power tool" in all of the warnings listed below refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool. - Page 4 GENERAL SAFETY RULES continued d) Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury. e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
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Page 5: Additional Specific Safety Rules
ADDITIONAL SPECIFIC SAFETY RULES Hold power tool by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring or its own cord. Contact with a "live" wire will make exposed metal parts of the tool "live" and shock the operator. Use clamps or other practical way to secure and support the workpiece to a stable platform. - Page 6 MOTOR Many Porter-Cable tools will operate on either D.C., or single phase 25 to 60 cycle A.C. current and voltage within plus or minus 5 percent of that shown on the specification plate on the tool. Several models, however, are designed for A.C.
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Page 7: Extension Cord Selection
14-16 16-18 18-20 FUNCTIONAL DESCRIPTION FOREWORD The Porter-Cable TIGER SAW ® is designed for cutting wood up to 12" thick, metal up to " thick and various other materials, such as plastics, fiberglass, hard rubber, etc. CARTON CONTENTS TIGER SAW ®... -
Page 8: Operation
BLADE CLAMP FEATURES 1. Model 745 is supplied with a standard hex key blade clamp. 2. Models 746 and 748 are supplied with a keyless Quik-Change ™ blade clamp. INSTALLING THE BLADE MODEL 745 Disconnect tool from power source. -
Page 9: Installing The Blade
Fig. 3 INSTALLING THE BLADE MODELS 746 and 748 with Keyless Quik-Change ™ Blade Clamp The reciprocating shaft must be fully extended to permit access to the Quik-Change ™ blade release collar (A) Fig. 4. If necessary, gently squeeze the trigger switch to move the reciprocating shaft to its outermost position (as shown in Fig. - Page 10 HANDLE FEATURES 1. Model 745 is supplied with a standard handle. 2. Models 746 and 748 are supplied with a soft grip handle. HOW TO HOLD SAW MODEL 745 and 746 Hold saw as shown in Fig. 8. The gear housing, intermediate plate, blade and pivoting guide shoe may be made live if the blade cuts into live wiring within a wall.
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Page 11: Variable Speed
DUAL BLADE MOTION (Model 748 only) The Model 748 has dual blade motion: you have a choice of straight reciprocating motion, as shown in Fig. 10, or orbital motion as shown in Fig. 11. Straight reciprocating motion should be used for all metal cutting operations, and for wood cutting applications where finish is more important than speed. - Page 12 PIVOTING GUIDE SHOE FEATURES 1. Model 745 is supplied with a standard hex key guide shoe. 2. Models 746 and 748 are supplied with a keyless Quik-Change ™ guide shoe. ADJUSTING PIVOTING GUIDE SHOE Disconnect tool from power source.
- Page 13 Doing so will cause the guide shoe to be unstable. After adjusting, make sure both screws are securely fastened. The Models 746 and 748 are supplied with a keyless Quik-Change ™ pivoting guide shoe. To adjust, rotate lever (A) Fig. 12B. releasing the pivoting guide shoe (B).
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Page 14: Sawing Wood
Be sure the material to be cut is rigid. Small work pieces should be securely clamped in a bench vise or with clamps to the work table. As the work progresses in scroll or curved cut-out pieces, the material may be readjusted to accommodate the movement of the saw. -
Page 15: Maintenance
FACTORY SERVICE CENTER. At approximately 100 hours of use, take or send your tool to your nearest authorized Porter-Cable Service Station to be thoroughly cleaned and inspected. Have worn parts replaced and lubricated with fresh lubricant. Have new brushes installed, and test the tool for performance.