Bosch PFS 55 - Инструкция по эксплуатации - Страница 18

18

 | English 

1 609 92A 0AA | (14.10.13)

Bosch Power Tools

Maintenance and Service

Maintenance and Cleaning



Before any work on the machine itself, pull the mains 
plug.



Never immerse the electrical unit into solvent or water. 

Clean the housing using only a moist cloth.

Cleaning (see figures H – I)

Proper cleaning is the requirement for flawless operation of 
the spray gun. Improper or lack of cleaning voids warranty 
claims.

Always clean the spray gun and the container with the respec-
tive diluting agent (paint thinner or water) for the spray mate-
rial being used.

Never clean the nozzle and air holes of the spray gun with 
pointed metal objects.

Do not pour diluted spray material back into the original spray 
material drum/tin for storage.

Clean the spray gun thoroughly after having sprayed material 
hazardous to one's health.

– Unplug the mains plug and pull the trigger switch 

16

 so that 

the spraying material can flow back into the container.

– Remove the electrical unit. (see page 16)
– Unscrew the container 

11

 and empty the remaining spray 

material back into the original spray material.

– Fill diluting agent (paint thinner or water) into the contain-

er and screw it to the spray gun.

– Shake the spray gun several times.
– Connect the spray gun to the electrical unit again. (see 

page 16)

– Plug the mains plug into a socket outlet, pull the trigger 

switch and spray the diluting agent into an empty material 
tin.

– Repeat the process until clear diluting agent emerges from 

the spray gun.

– Unplug the mains plug and remove the electrical unit.
– Completely empty the container 

11

.

– Check if the suction tube 

10

 and the container seal 

13

 are 

free of spray material and undamaged.

– Clean the outside of the container and the spray gun with a 

cloth moistened in paint thinner.

– Unscrew the union nut 

14

 and the air cap 

13

.

– Clean the nozzle 

20

 and the nozzle needle with diluting 

agent.

From time to time, the nozzle seal 

21

 must also be cleaned.

– Remove the nozzle 

20

 and the nozzle seal 

21

.

If required, use a pointed object, as the nozzle seal is seat-
ed firmly to the spray gun.

– Clean the nozzle seal with diluting agent.
– Reinstall the nozzle seal in the spray gun. Pay attention that 

the groove points away from the spray gun.

– Mount the nozzle onto the spray gun body and turn it to the 

correct position.

– Mount  the  air  cap 

13

 onto the nozzle and tighten with the 

union nut 

14

.

Cleaning the Venting Hose (see figure G)

When the venting hose 

17

 is contaminated with spraying ma-

terial, it must be cleaned.

– Remove the vent cover 

12

.

– Pull off the venting hose 

17

.

– Unscrew the venting valve 

18

.

– Remove the membrane 

19

.

– Clean the venting hose, the venting valve and the mem-

brane with an appropriate paint thinner.

– After cleaning, reinsert the membrane again first. Pay at-

tention that the longer rod faces upward.

– Screw the venting valve on again.
– Afterwards, attach the venting hose to the valve first, then 

at the top on the spray gun.

– Reattach the vent cover again.

Changing the Air Filter (see figure L)
Note: 

Never operate the power tool without the air filter. 

Without the air filter, dirt/contamination can be drawn in and 
can influence the operation of the power tool.

The air filter must be replaced when soiled.

– Loosen screw 

7

.

– Remove the air filter cover 

3

.

– Replace the air filter.
– Reattach the air filter cover and screw in the screw again.

Material Disposal

Diluting agent and remainders of spray material must be dis-
posed of in an environmentally-friendly manner. Observe the 
manufacturer’s disposal information and the local regulations 
for disposal of hazardous waste.

Chemicals harmful to the environment may not be disposed 
of into soil, groundwater or bodies of water. Never pour 
chemicals harmful to the environment into the sewerage sys-
tem!

Correction of Malfunctions

Problem

Cause

Corrective Measure

Spray material does not cover 
properly

Spraying capacity too low

Turn thumbwheel 

15

 in direction 

+

Clearance to target area too large

Reduce spray distance

Not enough spray material on target area, 
too few spray paths sprayed over target area

Apply more spray paths over target area

Spray material too viscous

Thin down the spray material by 10 % again 
and carry out a test-spray run

OBJ_BUCH-670-003.book  Page 18  Monday, October 14, 2013  4:53 PM