Download PRESSURE WASHERS INSTRUCTIONS

Pressure Sensitive Regulating Unloader
Bypass Mode
WARNING: DO NOT
OPERATE IN BYPASS
MODE LONGER THAN
2 MINUTES.
Pump
CAUTION: A minimum bypass of 5 10% of the UNLOADER RATED
FLOW CAPACITY is required for
proper unloader performance.
Piston Assembly
Inlet Port
Gun trigger valve is closed, gun is
not in use. Pump flow enters from
the left of the diagram (inlet port),
dead ends against output check
valve, overcomes the spring
pressure holding the piston
assembly and is forced down
through the bypass port.
Outlet Port
Check
Valve
Flow
To
Gun
CAUTION: If the entire output is
directed through the unloader (zero
by-pass) the cushioning feature of
the by-pass liquid is eliminated and
the unloader can malfunction and
wear prematurely.
Bypass Port
Bypass
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