Service and Repairs
General Precautions for Removing and Installing Hydraulic System Components
Before Repair or Replacement of Components
After Repair or Replacement of Components
1.
Before removing any parts from the hydraulic sys-
1. If component failure was severe or if hydraulic sys-
tem is contaminated, drain entire hydraulic system.
Drain and flush all hoses and components. Also, drain
and refill tow vehicle hydraulic system reservoir and
change oil filter.
tem, position ProCore Processor on a level surface.
Chock machine wheels to prevent machine from mov-
ing.MakesurethatProCoreProcessorengineisoff.Re-
move key from ignition switch. If ProCore Processor is
attached to tow vehicle, engage tow vehicle parking
brake, stop tow vehicle engine and remove key from the
ignition switch.
2.
Lubricate O--rings and seals with clean hydraulic oil
before installing hydraulic components.
3.
hoses, hydraulic fittings and components before recon-
necting.
Make surecaps orplugs areremoved fromhydraulic
2.
Clean machine before disconnecting, removing or
disassembling any hydraulic components. Make sure
hydraulic components, hoses, connections and fittings
are cleaned thoroughly. Always keep in mind the need
for cleanliness when working on hydraulic components.
4.
draulic hoses and fittings (see Hydraulic Fitting Installa-
tion in the General Information section of this chapter).
Use proper tightening methods when installing hy-
CAUTION
5.
ProCore Processor, check oil level in the hydraulic res-
ervoir of the tow vehicle and add correct oil if necessary.
After repairs are completed, butbefore operating the
Operate all machine hydraulic controls to relieve
system pressure and to avoid injury from pres-
surized hydraulic oil. See Relieving Hydraulic
System Pressure in the General Information sec-
tion of this chapter.
6.
ponent, operate machine functions slowly until air is out
of Core Processor hydraulic system.
After disconnecting or replacing any hydraulic com-
7.
gineandcorrectleaksifnecessary.Check oillevel inhy-
draulic reservoir and add correct oil if necessary.
Check for hydraulic oil leaks. Shut off tow vehicle en-
3.
tings or hydraulic components left open or exposed to
prevent hydraulic system contamination.
Putcapsorplugsonanyhydrauliclines,hydraulicfit-
4.
hosesforproperinstallationafterrepairsarecompleted.
Put labels on disconnected hydraulic lines and
5.
Note the position of hydraulic fittings (especially el-
bow fittings) on hydraulic components before removal.
Markpartsifnecessarytomakesuretheywillbealigned
properly when reinstalling hydraulic hoses.
Hydraulic System
Page 4 -- 20
ProCore Processor
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