Bosch GSN 90-21 RK, Original Instructions Manual

Page: 16 / 17

1 609 929 U15 | (8.12.09) Bosch Power Tools
30 | English
The nails are not driven in deep
enough. The rated pressure of the compressed-
air supply is too low. – Increase the compressed-air supply.
8 bar may not be exceeded.
The depth stop is set too high. – Adjust the depth stop to the desired
depth.
(See “Adjusting the Depth Stop”,
page 26)
The length and diameter of supply-air
hose
13 do not correspond with the data
of this pneumatic tool.
– Use a supply-air hose with the correct
dimensions.
(See “Technical Data”, page 23)
The supply-air hose 13 is bent/creased. – Correct the bend/crease in the supply-
air hose.
The pneumatic tool skips nails
or has a too large cycle feed. The fasteners being used are not
permitted. – Use only original accessories.
Only the fasteners (nails, staples, etc.)
specified in table “Technical Data” may
be used.
The magazine 8 is not operating
correctly.
– Clean and lubricate the magazine slider
7 as required and make sure that the
magazine 8 is not dirty/soiled.
The spring of the magazine slider is too
week or defective. – Contact an authorised service agent for
Bosch power tools.
Have the component replaced there.
The sealing ring of the piston is worn or
damaged. – Contact an authorised service agent for
Bosch power tools.
Have the component replaced there.
Frequent jamming of nails in the
shot duct. The fasteners being used are not
permitted. – Use only original accessories.
Only the fasteners (nails, staples, etc.)
specified in table “Technical Data” may
be used.
– Contact an authorised service agent for
Bosch power tools.
The driven nails are bent. The driver blade is damaged. – Contact an authorised service agent for
Bosch power tools.
Have the component replaced there.
Contrary to working with nor-
mal operating speed, the nails
are not driven in deep enough
at higher operating speed. The interior diameter of the supply-air
hose is too low. – Use a supply-air hose with the correct
dimensions.
(See “Technical Data”, page 23)
The compressor is not suitable for fast
operating speeds. – Use a compressor that is sufficiently di-
mensioned for the number of connect-
ed pneumatic tools and the operating
speed.
Problem Cause Corrective Measure
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