Maintenance; Tool Lubrication - Bosch 3931 Operating/Safety Instructions Manual

BM 2610919254 12/02 12/18/02
Service
Preventive maintenance
WARNING
!
performed by unauth-
orized personnel may result in misplacing
of internal wires and components which
could cause serious
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.
Cleaning
To avoid accidents always
WARNING
!
disconnect the tool from
the power supply before cleaning or
performing any maintenance. The tool may
be cleaned most
compressed dry air. Always wear safety
goggles when cleaning tools with
compressed air.
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.
10:52 AM Page 12

Maintenance

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.
CAUTION
!
hazard. We
plastic parts. Some of these are: gasoline,
carbon tetrachloride, chlorinated cleaning
solvents,
detergents that contain ammonia.
effectively with
Accessories
RECOMMENDED SIZES OF EXTENSION CORDS
120 VOLT ALTERNATING CURRENT TOOLS
Tool's
Ampere
Rating
3-6
6-8
8-10
10-12
12-16
-12-
Certain cleaning agents
and solvents damage
ammonia and household
Wire Sizes in mm
Cord Size in A.W.G.
Cord Length in Feet Cord Length in Meters
25 50 100 150 15 30 60 120
18 16 16 14 .75 .75 1.5 2.5
18 16 14 12 .75 1.0 2.5 4.0
18 16 14 12 .75 1.0 2.5 4.0
16 16 14 12 1.0 2.5 4.0 —
14 12 — — — — — —
2