Solving Breakdowns - Graco REGULUS 003.175-DP User Information

Component group Nature of defect
Compressed air supply Pump does not start
Diaphragm pump Running irregular,
Stroke frequency dropping,
comes to standstill
Air escapes continually from
air exit aperture
Comes to standstill during
operation
Pump does not stop when
material pressure feed
blocked
Does not start
Material suction device Pump dos not start, pressure
fluctuations
Material pressure Pump does not start, stops
during operation
system

SOLVING BREAKDOWNS

Defect symptoms
Heavy leakage
Narrowing of cross section
Flat slide defective
Icing
Flat slide or close sliding seat
defective
Diaphragm broken
Suction or pressure valve
defective
Material in diaphragm pump
has hardened
Sieve blocked, max. suction
exceeded, hose or seal
defective
Hose line clamped / folded
spray pistol blocked
Possible cause
Defective fitting
Hose line pinched
Dirty fittings
Wear
Compressed air too moist,
stroke frequency too high,
local temperature too low
Foreign body has gained
access
Load limit exceeded
serviceable life exceeded
Wear, foreign body has
gained access
Insufficiently flushed before
long-term standstill
Material contaminated pump
set up incorrectly incorrect
use
Incorrect use, material
contaminated
Countermeasure
Replace defective fitting
Check lines
Renew worn parts, check
compressed air sieve
Remove ice, change
operating conditions
Renew defective part, check
compressed air filter
Renew both diaphragms,
clean diaphragm pump
Renew defective part, check
sieves at suction device
Clean diaphragm pump
Clean sieve, observe Tech.
Data, renew defective parts
Check hose line