669224-R5
ROUBLESHOOTING
T
21
4.4-4 Sideshift Circuit
Pressure Test
Iftheclampdoesnotsideshiftrightandleftatequal
speedsordropsaloadwhilesideshifting,oneofthe
sideshiftcheckvalvecartridgesisfaulty.Thetwoouter
cartridgesonthefrontofthevalveareforthesideshift
circuit.
IMPORTANT:Attachmentsequippedwithsolenoid
adaptionmustbeplumbedtothecheckvalvesothe
solenoidwillbeenergizedfortheclamp/openfunctions.
WARNING:Beforeinstallingthepressure
gauge,relievepressureinthehydraulic
system.Turntruckoffandopenthetruck
auxiliarycontrolvalvesseveraltimesinboth
directions.
WARNING:Beforeremovingthepressure
gauge,relievepressureinthehydraulic
system.Turntruckoffandopenthetruck
auxiliarycontrolvalvesseveraltimesinboth
directions.
1 Top Mount Valves –Installthepressuregaugeand
hoseassemblyinthevalvetestportmarked'G',located
onthebackofthevalvebody.
Center Mount Valves –Removethebumper.Install
ateetting,hoseandgaugebetweenthecylinderrod
endsupplyhoseandteetting.
2 Startthetruck.Clampontoaload(liftnomorethan1
in.(25mm)oftheoor).HoldtheSIDESHIFTcontrol
handleinthesideshiftleftpositionforafewseconds.
3 Returnthehandletoneutral.Watchthegaugepressure
reading.
• Ifthepressure dropsmorethan150psi(10bar)
initiallyandadditionaldropexceeds25psi(2bar)
perminute,thesideshiftleftcartridgeisfaultyand
requireservice.RefertoSection5.5-3.
• Ifthepressure does not dropmorethan150psi
(10bar)initiallyandanadditionaldropdoesnot
exceed25psi(2bar)perminute,movethesideshift
controlhandleinthesideshiftrightpositionforafew
seconds.Continuewithtroubleshootingprocedure.
4 Returnthehandletoneutral.Watchthegaugepressure
reading.
• Ifthepressure dropsmorethan150psi(10bar)
initiallyandadditionaldropexceeds25psi(2bar)
perminute,thesideshiftrightcartridgeisfaultyand
requiresservice.RefertoSection5.5-3.
• Ifthepressure does not dropmorethan150
psi(10bar)initiallyandadditionaldropdoesnot
exceed25psi(2bar)perminute,theproblemisnot
hydraulic.
CL2229.eps
CL2230.eps
CL2226.eps
Installtting,hose
andgauge
Installtting,hose
andgauge
SideshiftRight
Cartridge
SideshiftRight
Cartridge
Clamp
Cartridge
Clamp
Cartridge
SideshiftLeft
Cartridge
SideshiftLeft
Cartridge
Top Mount
Valves
Center Mount
Valves