BM 2610022228 04-12_BM 2610022228 04-12.qxp 4/12/12 10:52 AM Page 12

Maintenance

Service

!WARNING Preventive maintenance performed by unauth-

orized personnel may result in misplacing of internal wires and components which could cause serious hazard. We recommend that all tool service be performed by a Bosch Factory Service Center or Autho- rized Bosch Service Station.

TOOL LUBRICATION

Your Bosch tool has been properly lubricated and is ready to use.

Cleaning

!WARNING To avoid accidents always disconnect the tool from

the power supply before cleaning or performing any maintenance. The tool may be cleaned most effectively with compressed

dry air. Always wear safety goggles when cleaning tools with compressed air.

Ventilation openings and switch levers must be kept clean and free of foreign matter. Do not attempt to clean by inserting pointed objects through openings.

See also the sections THOROUGH CLEANING OF THE FILTER CARTRIDGES, CLEANING THE MOTOR PROTECTION FILTERS, WATER-LEVEL SENSOR

MAINTENANCE and CANISTER MAINTENANCE.

!CAUTION Certain cleaning agents and solvents damage

plastic parts. Some of these are: gasoline, carbon tetrachloride, chlorinated cleaning solvents, ammonia and household detergents that contain ammonia.

Accessories

If an extension cord is ! WARNING necessary, a cord with

adequate size conductors that is capable of carrying the current necessary for your tool must be used. This will prevent

excessive voltage drop, loss of power or overheating. Grounded tools must use 3-wire extension cords that have 3-prong plugs and receptacles.

NOTE: The smaller the gauge number, the heavier the cord.

The length of the vacuum cleaner cord must be included in calculating the total length of cord.

RECOMMENDED SIZES OF ExTENSION CORDS 120 VOLT ALTERNATING CURRENT TOOLS

Tool’s

Cord Size in A.W.G.

Wire Sizes in mm2

 

 

 

 

 

 

 

 

Ampere

 

 

 

 

 

 

 

 

Cord Length in Feet

Cord Length in Meters

Rating

25

50

100

150

15

30

60

120

 

3-6

 

 

 

 

 

 

 

 

18

16

16

14

0.75

0.75

1.5

2.5

6-8

18

16

14

12

0.75

1.0

2.5

4.0

8-10

18

16

14

12

0.75

1.0

2.5

4.0

10-12

16

16

14

12

1.0

2.5

4.0

—

12-16

14

12

—

—

—

—

—

—

 

 

 

 

 

 

 

 

 

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Bosch Power Tools 3931A-PB manual Maintenance, Accessories, Cleaning, Tool Lubrication
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3931A-PB specifications

The Bosch Power Tools 3931A-PB is a versatile and efficient tool that caters to both professionals and DIY enthusiasts looking for reliability and performance in their projects. This powerful reciprocating saw is engineered to tackle a wide range of cutting tasks, making it a valuable addition to any toolbox.

One of the prominent features of the Bosch 3931A-PB is its robust 7.5 Amp motor, which delivers a high cutting speed of up to 2,700 strokes per minute. This impressive power enables users to cut through a variety of materials, including wood, metal, and plastics, with ease. The variable speed control feature allows for precise adjustments to the cutting speed depending on the material and application, enhancing both versatility and control.

The design of the Bosch 3931A-PB emphasizes user comfort and handling. It boasts an ergonomic grip that reduces fatigue during extended use, allowing users to work efficiently without discomfort. Additionally, the tool features an adjustable shoe that provides increased stability while cutting, enabling cleaner cuts in different materials.

Another noteworthy characteristic of the Bosch 3931A-PB is its unique blade change system. The tool incorporates a tool-less blade release mechanism, making it quick and easy to switch out blades for different applications without the need for additional tools. This efficiency saves time and streamlines the workflow for users.

Moreover, the Bosch 3931A-PB is equipped with a built-in LED light that illuminates the work area. This feature is especially beneficial for working in dimly lit conditions, ensuring that users can see their cutting line clearly. Additionally, the saw includes a dust blower that keeps the cutting line free from debris, enhancing visibility and accuracy during operation.

Safety is a paramount consideration in the design of the Bosch 3931A-PB. It includes a two-finger trigger switch that offers enhanced control, and the durable exterior is designed to withstand the rigors of job site use. The tool is also compatible with a wide array of blades, allowing users to expand its capabilities to suit their specific needs.

In summary, the Bosch Power Tools 3931A-PB is a high-performance reciprocating saw that combines power, comfort, and convenience. Its advanced features, including a powerful motor, variable speed control, tool-less blade changes, and integrated lighting, make it an ideal choice for anyone looking to tackle cutting tasks with efficiency and precision.
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