Manual

05/14
SPOOL SCHEMATICS:
SAFETY PRECAUTIONS:
 It is the purchaser’s responsibility to determine the suitability of any Brand Hydraulics Co. product for an intended
application, and to ensure that it is installed in accordance with all federal, state, local, private safety and health
regulations, codes and standards. Due to the unlimited variety of machines, vehicles and equipment on which our
products can be used, it is impossible for Brand Hydraulics Co. to offer expert advice on the suitability of a product
for a specific application. It is our customer’s responsibility to undertake the appropriate precautions, testing and
evaluation to prevent injury to the end-user.
 Overpressure may cause sudden and unexpected failure of a component in the hydraulic system, resulting in serious
personal injury or death. Always use a gauge when adjusting a relief valve.
TP
A B
T a n d e m C en te r (T ) - P o w ers c y lin d e r o r m o to r in
b o th d ire c tio n s . P u m p u n lo a d s to ta n k w h e n
sp o o l is in n e u tra l. C ylin d e r o r m o to r b lo ck e d
w h e n s p o o l in n e u tra l.
O p e n C e n te r (O ) - A ll o f th e p o rts a re c o n n e cte d
to ta n k w h e n th e s p o o l is in n e u tra l. A llo w s
c y lin d e r to m o v e o r m oto r to ro ta te w h e n s p o o l is
in n e u tra l
T a n d e m T h re e W a y (T 3 ) - P o w ers th e c y lin d e r in
o n e d ire c tio n . P u m p u n lo a d s to ta n k w he n sp o o l
is in n e u tra l, o r w he n s p o o l is b e in g re v e rs e d .
C y lin d e r is b lo ck e d w h e n sp o o l is in n e u tra l. P o rt
"B " is p lu g g e d . S e co n d s p o o l o n ly .
B
A
P T
BA
P T
F lo a t (K ) - S a m e a s T a n d e m s p o o l in sta n d a rd
th re e p o s itio n s . D e te n te d F o u rth p o sitio n a llo w s
c y lin d e r to m o v e o r m oto r to ro ta te w h e n s p o o l is
d e te n te d .
T
P
A B