Maintenance accessories, Service, Cleaning – Bosch 1278VSK User Manual

Page 9: Warning, Caution

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Service

Preventive maintenance
performed by unauthorized

personnel may result in misplacing of
internal wires and components which
could cause serious hazard.

recommend that all tool service be
performed by a Bosch Factory Service
Center or Authorized Bosch Service Station.

TOOL LUBRICATION

Your Bosch tool has been properly
lubricated and is ready to use. It is
recommended that tools with gears be
regreased with a special gear lubricant at
every brush change.

CARBON BRUSHES

The brushes and commutator in your tool
have been engineered for many hours of
dependable service. To maintain peak
efficiency of the motor, we recommend
every two to six months the brushes be
examined. Only genuine Bosch replacement
brushes specially designed for your tool
should be used.

BEARINGS

After about 300-400 hours of operation, or at
every second brush change, the bearings

should be replaced at Bosch Factory Service
Center or Authorized Bosch Service Station.
Bearings which become noisy (due to heavy
load or very abrasive material cutting) should
be replaced at once to avoid overheating or
motor failure.

Cleaning

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 at-
tempt to clean by inserting pointed objects
through openings.

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.

WARNING

Maintenance

Accessories

If an extension cord is
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.

RECOMMENDED SIZES OF EXTENSION CORDS

120 VOLT ALTERNATING CURRENT TOOLS

CAUTION

WARNING

* 10 Sanding belts

* Auxiliary handle

* Carrying case

** Bench Mount kit
** Vacuum Hose

(*= standard equipment)
(**= optional accessories)

Tool’s

Ampere

Rating

Cord Size in A.W.G.

Wire Sizes in mm

3-6
6-8

8-10

10-12
12-16

.75

1.5

2.5

.75

1.0

2.5

4.0

.75

1.0

2.5

4.0

1.0

2.5

4.0

—

100 150

120

Cord Length in Feet

Cord Length in Meters

BM 2609931631 9/00 2/14/01 4:42 PM Page 9