19 of 29
New Hydraulic Systems
Systems Operation
Tilt Spool
IN
“
A
”
to tank
“
B
”
blocked
By-pass open
CENTER
“
A
”
and
“
B
”
blocked
By-pass open
OUT
Pressure to
“
A
”
“
B
”
blocked
By-pass blocked
Tilt spool - a counterbalance spool normally used to
control the tilt function of a lift truck.
The counterbalance feature prevents the forks from
tilting forward faster than the pump can supply oil,
preventing tilt.
IDCS012B
Auxiliary Spool
IN
Pressure to
“
B
”
“
A
”
to tank
By-pass blocked
CENTER
“
A
”
and
“
B
”
blocked
By-pass open
OUT
Pressure to
“
A
”
“
B
”
to tank
By-pass blocked
Auxiliary spool - directs flow to either end of a double
acting cylinder. Flow from the end that is not under
pressure is returned to tank via internal coring of the
valve section.
IDCS010B
IDCS011B
IDCS013B
Summary of Contents for D20S-2
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