Toro ProCore, Service Manual

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ProCore Processor Hydraulic System Page 4 -- 20
Service and Repairs
General Precautions for Removing and Installing Hydraulic System Components
Before Repair or Replacement of Components
1. Before removing any parts from the hydraulic sys-
tem, position ProCore Processor on a level surface.
Chock machine wheels to prevent machine from mov-
ing. Make sure that ProCore Processor engine is off. 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. 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.
CAUTION
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.
3. Put caps or plugs on any hydraulic lines, hydraulic fit-
tings or hydraulic components left open or exposed to
prevent hydraulic system contamination.
4. Put labels on disconnected hydraulic lines and
hoses for proper installation after repairs are completed.
5. Note the position of hydraulic fittings (especially el-
bow fittings) on hydraulic components before removal.
Mark parts if necessary to make sure they will be aligned
properly when reinstalling hydraulic hoses.
After Repair or Replacement of Components
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.
2. Lubricate O--rings and seals with clean hydraulic oil
before installing hydraulic components.
3. Make sure caps or plugs are removed from hydraulic
hoses, hydraulic fittings and components before recon-
necting.
4. Use proper tightening methods when installing hy-
draulic hoses and fittings (see Hydraulic Fitting Installa-
tion in the General Information section of this chapter).
5. After repairs are completed, but before operating the
ProCore Processor, check oil level in the hydraulic res-
ervoir of the tow vehicle and add correct oil if necessary.
6. After disconnecting or replacing any hydraulic com-
ponent, operate machine functions slowly until air is out
of Core Processor hydraulic system.
7. Check for hydraulic oil leaks. Shut off tow vehicle en-
gine and correct leaks if necessary. Check oil level in hy-
draulic reservoir and add correct oil if necessary.