WAGNER Cobra 40-10 Original Operating Manual

44
VERSION 01/2018
ORDER NUMBER DOC 2340851
Cobra 40-10 / 40-25
9 TROUBLESHOOTING AND RECTIFICATION
Problem Cause Remedy
The pump does not work. Air motor does not work or stops. Open and close ball valve on the
pressure regulator unit or briey
disconnect compressed air supply.
No pressure indication on the
pressure gauge (air pressure regulator
defective).
Disconnect compressed air supply
briey or repair or change pressure
regulator.
Spray nozzle is clogged. Clean the nozzle according to the
instructions.
Insucient compressed air supply. Check compressed air supply.
Filter insert in spray gun or high-
pressure lter is clogged.
Clean the parts and use a suitable
working material.
The uid section or high-pressure hose
is blocked (e.g., the 2K product has
hardened).
Dismount and clean uid section,
replace high-pressure hose.
Grease in spool and sleeve assembly. Degrease spool and sleeve assembly.
Pump stops at the stroke end
occasionally.
Check detent body.
Poor spray pattern. See spray gun instructions.
Irregular operation of
product pump: spray jet
collapses (pulsation)
Viscosity is too high. Thin spraying product.
Spraying pressure is too low. Increase incoming air pressure.
Use a smaller nozzle.
Valves are clogged. Press valve depressor.
Clean product pump and leave to soak
in cleaning agent if necessary.
Foreign body in suction valve. Dismantle suction valve housing, clean
and check valve seat.
Diameter of compressed air line too
small.
Assemble a larger supply line
Technical data, see Chapter 5.5.2.
Valves, packings, or pistons are worn
out.
Replace the parts.
Control air lter or work air lter is
clogged.
Check lter and clean it if necessary.
Strongly irregular
operation of product
pump.
Diaphragms "blocked" because
suction is too fast.
Operate pump with ball valve opened a
minimal amount for a while.
The pump runs evenly,
does not however, suck up
product.
The suction system's union nut is
loose; the pump is taking in air.
Tighten.
Suction lter is clogged. Clean lter.
Valves are clogged. Press valve depressor.
Clean product pump and leave to soak
in cleaning agent if necessary.
Pump runs fast when the
spray gun is closed.
Valves worn. Replace the parts.
Loss of power due to
severe icing.
There is a lot of condensation water in
the air supply.
Install a water separator.
If none of the causes of malfunction mentioned are present, the defect can be remedied
by a WAGNER Service Center.

WAGNER Cobra 40-10 Specifications

General

Brand	WAGNER
Model	Cobra 40-10
Category	Water Pump
Language	English