Operating Instructions, Sanding Tips | Bosch Power Tools 1853-5

BM 1609929H55 1-05 1/5/05 3:17 AM Page 10

Operating Instructions

"TRI-CONTROL" PADDLE SWITCH

The “Tri-Control” Paddle Switch enables the operator to control the switch functions of "Lock-OFF", "ON/OFF" and "Lock-ON".

TO UNLOCK SWITCH AND TURN TOOL "ON": Push paddle lever FORWARD (toward the spindle) then squeeze the paddle lever.

TO SWITCH TOOL "OFF": Release pressure on paddle lever. The switch is spring loaded and will return to "OFF" position automatically.

The "Lock-ON" feature, incorporated into the paddle switch, is a convenience for long operations.

TO LOCK SWITCH "ON": After paddle switch has been activated push paddle lever completely FORWARD and release paddle lever.

TO SWITCH TOOL "OFF": Squeeze and then release paddle lever. The switch is spring loaded and will return to "OFF" position automatically.

!WARNING Hold the tool with both hands while starting the tool,

since torque from the motor can cause the tool to twist.

Start the tool before applying to work and let the tool come to full speed before contacting the workpiece. Lift the tool from the work before releasing the switch. DO NOT turn the switch “ON” and “OFF” while the tool is under load; this will greatly decrease the switch life.

Sanding Operations

SELECTING SANDING DISC

Sanding discs are made of extremely hard and sharp aluminum oxide grits, phenol-resin bonded to a sturdy fiber backing for fast heavy-duty service and long life. The discs vary as to size and spacing of the abrasive grits. OPEN COAT (type H) — used for soft materials and on paint or varnish. CLOSED COAT (type K) —used for metal, hardwood, stone, marble and other materials.

Sanding discs range in grit from 16 (very coarse) to 180 (very fine). To obtain best results, select sanding discs carefully. Many jobs require the use of several grit sizes and

at times both “open coat and closed coat” discs are required to get the job done faster. See chart for application examples.

Operation: Refinishing painted wood or metal surfaces.

REMARKS	GRIT
To remove paint and to smooth	Coarse
surface irregularities.	16-24-30
To smooth	Medium
the rough sanding.	36-50-80
To remove scratches left by	Fine
previous discs.	100-120

To smooth surfaces for painting,	Very Fine
polishing or waxing.	150-180

SANDING TIPS

For best results, tilt the Disc Sander at a 10° to 15° angle while sanding so that only about 1" of the surface around the edge of the disc contacts the work.

If the disc (accessory) is held flat or the back edge of the disc comes in contact with the work, a violent thrust to the side may result.

If sander is tilted too much, sanding action will be too great and a rough cut surface or gouging and snagging will result.

Guide the Disc Sander with crosswise strokes. Be careful not to hold the sander in

one spot too long. Do not use a circular motion, as this makes swirl marks. Test before use on scrap stock.

Do not force or apply pressure when sanding. Use only the weight of the tool for pressure. Excess pressure actually slows the tool down. If faster stock removal is desired, change to a coarser grit disc.

Remove gummy paint from metal with an “open coat” disc. Sand until sparks start to appear, then stop and change to a “closed coat” disc to remove any remaining paint.

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1853-5, 1853-6 specifications

Bosch Power Tools has long been a leader in the power tools industry, and the Bosch 1853-6 and 1853-5 models are exemplary representations of their commitment to quality, performance, and innovation. These tools are designed to meet the demanding needs of professional contractors and DIY enthusiasts alike.

The Bosch 1853-6 is a 7-inch angle grinder that features a robust 15-amp motor, delivering a powerful performance for grinding, cutting, and polishing applications. Its advanced cooling system ensures that the tool remains efficient even under heavy load, preventing overheating and prolonging its lifespan. The grinder’s lightweight design enhances maneuverability, making it easier to use for extended periods without fatigue.

One of the standout features of the 1853-6 is the innovative Constant Electronic technology, which helps maintain speed under load. This means that even when the tool is under pressure, it will continue to operate at optimal speeds, ensuring consistent results. Additionally, the integrated vibration-dampening handle reduces strain on the user, allowing for increased comfort during prolonged use.

On the other hand, the Bosch 1853-5 model also boasts a similarly powerful 15-amp motor and incorporates some unique features tailored towards specific applications. This model is designed for a variety of cutting tasks, with a focus on precision and control. The 1853-5 is equipped with a spindle lock for easy disc changes and includes a guard that can be easily adjusted without the need for additional tools.

Both models highlight Bosch's emphasis on user safety. They are equipped with restart protection, which prevents accidental start-ups after a power interruption. Furthermore, the ergonomic design of the handles on both models ensures that users can achieve a firm grip, enhancing control during operation.

In terms of build quality, both models are constructed from durable materials designed to withstand tough job site conditions. They are engineered for longevity, making them reliable investments for any toolbox.

In summary, the Bosch 1853-6 and 1853-5 angle grinders represent the brand’s commitment to high-performance tools. With advanced technologies such as Constant Electronic, a focus on user safety, and sturdy construction, these angle grinders are versatile options that can handle a wide range of applications, ensuring they remain a favored choice among professionals and hobbyists alike.

Bosch Power Tools 1853-5 Operating Instructions, Sanding Operations, TRI-CONTROL Paddle Switch

Models: 1853-5 1853-6