26
| English
1 609 929 L54 | (18.2.08)
Bosch Power Tools
Spray material runs off
after coating
Too much spray material applied
Turning the thumbwheel
15
in
direction
–
Clearance to target area too close
Increase spray distance
Viscosity of spray material too low
Add original spray material
Spray material applied too often over
same spot
Remove spray material; reduce
number of spray paths over same
spot
Atomisation too course Spraying capacity too high
Turning the thumbwheel
15
in
direction
–
Nozzle
20
soiled
Clean nozzle
Too little pressure build-up in con-
tainer
11
Screw container firmly against
spray gun
Spray material too viscous
Thin down the spray material by
10% again and carry out a test-
spray run
Air filter heavily soiled
Changing the Air Filter
Too much fog of coating
material
Too much spray material applied
Turning the thumbwheel
15
in
direction
–
Clearance to spray surface too large Reduce spray distance
Spray jet pulsates
Not enough spray material in con-
tainer
Refill spray material
Venting hole on suction tube
10
clogged
Clean suction tube and hole
Air filter heavily soiled
Changing the Air Filter
Spray material too viscous
Thin down the spray material by
10% again and carry out a test-
spray run
Spray material drips
from the nozzle
Build-up of spray material on nozzle
20
and air cap
13
Clean nozzle and air cap
Nozzle
20
worn
Replace nozzle
Nozzle
20
loose
Tighten union nut
14
No spray material
emerges from the
nozzle
Nozzle
20
clogged
Clean nozzle
Suction tube
10
clogged
Clean suction tube
Venting hole on suction tube
10
clogged
Clean suction tube and hole
Suction tube
10
loose
Insert suction tube properly
No pressure build-up in container
11
Screw container firmly against
spray gun
Spray material too viscous
Thin down the spray material by
10% again and carry out a test-
spray run
Problem
Cause
Corrective Measure
OBJ_BUCH-670-001.book Page 26 Monday, February 18, 2008 2:16 PM