Cascade D Series Service Manual

ROUBLESHOOTING
669224-R5
T
20
4.4-2 Check Valve Pressure Test
4.4-3 Cylinder Test
WARNING:Beforeremovinghydraulic
linesorcomponents,relievepressureinthe
hydraulicsystem.Turntruckoffandopen
thetruckauxiliarycontrolvalve(s)several
timesinbothdirections.
WARNING:Beforeremovinghydraulic
linesorcomponents,relievepressureinthe
hydraulicsystem.Turntruckoffandopen
thetruckauxiliarycontrolvalve(s)several
timesinbothdirections.
1 Removebumper.
2 Disconnecthydrauliclinesattherodendofboth
cylinders.Capportsandpluglines.
3 Startthetruck.HoldtheCLAMPcontrolhandleinthe
clampposition.
4 Returnthehandletoneutral.Watchthegaugepressure
reading.
• Ifthepressure dropsmorethan150psi(10bar)
initiallyandadditionaldropexceeds25psi(2bar)
perminute,thecheckvalveisfaultyandrequires
service.RefertoSection5.5-3
• Ifthepressure does not drop morethan150psi
(10bar)initiallyandadditionaldropdoesnotexceed
25psi(2bar)perminute,oneorbothcylinders
requireservice.Proceedwiththetroubleshooting
checklisttoisolatethefaultycomponent.
IMPORTANT:Beforeremovingpressuregauge,
momentarilyactuateCLAMPopencircuit.Thiswillrelieve
pressuretrappedbycheckvalvesinclampcircuit.
1 Connectoneofthehydrauliclinestoitscylinder.The
otherlinemustremainplugged.
2 Startthetruck.HoldtheCLAMPcontrolhandleinthe
clamppositionforafewseconds.
3 Returnthehandletoneutral.Watchthegaugepressure
reading.
• Ifthepressure dropsmorethan150psi(10bar)
initiallyandadditionaldropexceeds25psi(2bar)
perminute,thecylinderconnectedtothecheck
valveisfaultyandrequiresservice.RefertoSection
5.3-1.
• Ifthepressure does not dropmorethan150psi(10
bar)initiallyandadditionaldropdoesnotexceed25
psi(2bar)perminute,thesecondcylinderisfaulty.
RefertoSection5.3-1.
NOTE:Itisrecommendedtoperformasimilarpressure
testforthesecondcylinderbeforeservicing.
IMPORTANT:Beforeremovingpressuregauge,
momentarilyactuateCLAMPopencircuit.Thiswillrelieve
pressuretrappedbycheckvalvesinclampcircuit.
CL2227.eps
CL2228.eps
Disconnectthehydrauliclines
attherodendofbothcylinders.
Captheportandplugthelines.
Connectoneofthehydraulic
linestoitscylinder.Theother
linemustremainplugged.
Top
Mount
Valves
Top
Mount
Valves
Center
Mount
Valves
Center
Mount
Valves

Cascade D Series Specifications

General

Brand	Cascade
Model	D Series
Category	Power Tool
Language	English