Correction Of Malfunctions; Accessories - Bosch GSN 90-21 RK Notice Originale

OBJ_BUCH-1037-004.book Page 16 Thursday, August 16, 2012 4:34 PM
16 | English

Correction of Malfunctions

Problem
The pneumatic tool is ready for operation but no nails are dis-
charged.
The nails are discharged very slowly and with too little pres-
sure.
The nails are driven in too deep.
The nails are not driven in deep enough.
The pneumatic tool skips nails or has a too large cycle feed.
Frequent jamming of nails in the shot duct.
The driven nails are bent.
Contrary to working with normal operating speed, the nails
are not driven in deep enough at higher operating speed.

Accessories

For more information on the complete quality accessories
program, please refer to the Internet under
www.bosch-pt.com or contact your specialist shop.
1 609 929 Y30 | (16.8.12)
Cause
A nail is jammed in the shot duct.
The magazine slider is 7 defective.
The spring of the magazine slider is too week or defective.
The fasteners being used are not permitted.
The magazine 8 is empty.
The rated pressure of the compressed-air supply is too low.
The driver blade is damaged.
The sealing ring of the piston is worn or damaged.
The buffer is worn.
The length and diameter of supply-air hose 13 do not corre-
spond with the data of this pneumatic tool.
The supply-air hose 13 is bent/creased.
The rated pressure of the compressed-air supply is too high.
The depth stop is set too deep.
The buffer is worn.
The rated pressure of the compressed-air supply is too low.
The depth stop is set too high.
The length and diameter of supply-air hose 13 do not corre-
spond with the data of this pneumatic tool.
The supply-air hose 13 is bent/creased.
The fasteners being used are not permitted.
The magazine 8 is not operating correctly.
The spring of the magazine slider is too week or defective.
The sealing ring of the piston is worn or damaged.
The fasteners being used are not permitted.
The driver blade is damaged.
The interior diameter of the supply-air hose is too low.
The compressor is not suitable for fast operating speeds.
After-sales Service and Customer Assistance
Our after-sales service responds to your questions con-
cerning maintenance and repair of your product as well as
spare parts. Exploded views and information on spare
parts can also be found under:
www.bosch-pt.com
Corrective Measure
– Clear the jam.
(See "Clearing Jams", page 15)
– Clean and lubricate the magazine slider 7 as required
and make sure that the magazine 8 is not dirty/soiled.
– Contact an authorised service agent for Bosch power
tools.
Have the component replaced there.
– Use only original accessories.
Only the fasteners (nails, staples, etc.) specified in ta-
ble "Technical Data" may be used.
– Refill the magazine.
(See "Loading the Magazine", page 14)
– Increase the compressed-air supply. 8 bar may not be
exceeded.
– Use only the lubricants recommended by Bosch.
(See "Lubricating the Pneumatic Tool", page 15)
– Contact an authorised service agent for Bosch power
tools.
Have the component replaced there.
– Contact an authorised service agent for Bosch power
tools.
Have the component replaced there.
– Use a supply-air hose with the correct dimensions.
(See "Technical Data", page 13)
– Correct the bend/crease in the supply-air hose.
– Reduce the compressed-air supply. 5 bar may not be
fallen below.
– Adjust the depth stop to the desired depth.
(See "Adjusting the Depth Stop", page 15)
– Contact an authorised service agent for Bosch power
tools.
Have the component replaced there.
– Increase the compressed-air supply. 8 bar may not be
exceeded.
– Adjust the depth stop to the desired depth.
(See "Adjusting the Depth Stop", page 15)
– Use a supply-air hose with the correct dimensions.
(See "Technical Data", page 13)
– Correct the bend/crease in the supply-air hose.
– Use only original accessories.
Only the fasteners (nails, staples, etc.) specified in ta-
ble "Technical Data" may be used.
– Clean and lubricate the magazine slider 7 as required
and make sure that the magazine 8 is not dirty/soiled.
– Contact an authorised service agent for Bosch power
tools.
Have the component replaced there.
– Contact an authorised service agent for Bosch power
tools.
Have the component replaced there.
– Use only original accessories.
Only the fasteners (nails, staples, etc.) specified in ta-
ble "Technical Data" may be used.
– Contact an authorised service agent for Bosch power
tools.
– Contact an authorised service agent for Bosch power
tools.
Have the component replaced there.
– Use a supply-air hose with the correct dimensions.
(See "Technical Data", page 13)
– Use a compressor that is sufficiently dimensioned for
the number of connected pneumatic tools and the op-
erating speed.
Our customer service representatives can answer your
questions concerning possible applications and adjust-
ment of products and accessories.
Bosch Power Tools