TX / TXH / TXB 180S - 400L (Rev. 4/23/07)TX / TXH / TXB 180S - 400L (Rev. 4/23/07)22-422-4
ORF2ORF2
ACCMACCM
PPPP
LC1LC1
UNL1UNL1
CK1 &CK1 &
ORF1ORF1
ORF4ORF4
P1MP1M
P1P1
LSOLSO
LSMLSM
Illustration 22-4. Illustration 22-4. Manifold (TManifold (Top Side)op Side)
BB - (Service brake Port) Supply pressure to the- (Service brake Port) Supply pressure to the
service brake pedals.service brake pedals.
ORF4ORF4 - Currently not used.- Currently not used.
ACCMACCM- (Accumulator measure port) Port for park- (Accumulator measure port) Port for park
brake pressure check.brake pressure check.
ORF2ORF2- (Orifice2) Controls parking brake- (Orifice2) Controls parking brake
release rate.release rate.
PBMPBM- Port to monitor parking brake pressure.- Port to monitor parking brake pressure.
P1MP1M- (Pump One Measure) Pressure check port- (Pump One Measure) Pressure check port
for primary pump.for primary pump.
P1P1- (Pump One / Main Pump) Primary pump- (Pump One / Main Pump) Primary pump
inlet to manifold.inlet to manifold.
CK1 & ORF1CK1 & ORF1- (Check valve number one and- (Check valve number one and
orifice number one) Orifice number dampens theorifice number one) Orifice number dampens the
pressure check.pressure check.
PPPP- (Pilot Pressure) Pilot pressure check port.- (Pilot Pressure) Pilot pressure check port.
UNL1UNL1- (Unloader Valve number one) Controls- (Unloader Valve number one) Controls
accumulator charge pressure high and low limits.accumulator charge pressure high and low limits.
Side IllustratedSide Illustrated
ACC1ACC1
Illustration 22-5. Illustration 22-5. Manifold Manifold (Bottom (Bottom Side)Side)
ACC1ACC1- (Accumulator #1) This port provides the- (Accumulator #1) This port provides the
connection to the parking brake accumulator.connection to the parking brake accumulator.
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