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SG 31
English
18
Troubleshooting
Before starting any service work, operate the unit until it is no longer under pressure – if pressure is not released, chemical may
escape unexpectedly when working on the unit.
After servicing, carry out test run with clean water.
Condition
Cause
Remedy
Pumping action produces no pressure Pump not tightened down properly
Lock the pump handle and tighten down
the pump
O-ring on pump damaged
Install new O-ring
Piston cup seal damaged
Install new piston cup seal
Liquid entering the pump
Valve disk dirty or damaged
Clean or replace valve disk
Piston manometer indicates no con
-
tainer pressure; relief valve operates
too soon
Piston manometer faulty
Replace solution container
Nozzle does not spray – pressure in
container OK
Nozzle / spinner insert and/or filter blocked
Clean nozzle / spinner insert and/or filter
Jet only – spray not atomized
Spinner insert in nozzle missing
Fit spinner insert in the nozzle
Summary of Contents for SG 31
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