309
All Units
Printed in U.S.A. SEPTEMBER 2009
COPYRIGHT 2009, Heil Environmental
TANDEM VANE PUMP WITH MONOBLOCK CONTROL MANIFOLDS –
NON-O.I.G.A.I. COMBINED FLOW – DP7000 AUTO SIDE LOADER,
F4000 O.I.G.A.I., PT1000 O.I.G.A.I.
This pump uses three manifolds to direct
the flow of oil away from the pump to the
system pressure circuit.
The two pressure block manifolds each
contain an unloader valve cartridge and
coil assembly to activate the system and
an internal one-way check valve for each
pump circuit.
The pump closest to the input shaft shuts
OFF first at lower RPMs while the pump
farthest from the input shaft stays ON at
higher RPMs.
BYPASS LINE
BACK TO TANK
PRESSURE BLOCK
MANIFOLDS
UNLOADER VALVE
CARTRIDGE ASSEMBLY
PRESSURE LINE
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