Multi Pro 1200/1250Hydraulic System Page 4 -- 18
Service and Repairs
General Precautions for Removing and Installing Hydraulic System Components
Before Repair or Replacement of C omponents
1. Before removing any parts from the hydraulic sys-
tem, park machine on a level surface, engage parking
brake and stop engine. Remove key from the ignition
switch.
2. Clean machine before disconnecting, removing or
disassembling any hydraulic components. Make sure
hydraulic components, hose connections and fittings
are cleaned thoroughly. Always keep in mind the need
for cleanliness when working on hydraulic equipment.
CAUTION
Before disconnecting components or perform-
inganyworkonhydraulicsystem,allpressurein
the system must be relieved by stopping the en-
gine and rotating the steering wheel in both
directions.
3. Putcapsorplugsonanyhydrauliclines,hydraulicfit-
tings and components left open or exposed to prevent
contamination.
4. Put labels on disconnected hydraulic lines and
hosesforproperinstallationafterrepairsarecompleted.
5. Note the position of hydraulic fittings (especially el-
bow fittings) on hydraulic components before removal.
Markpartsifnecessarytomakesuretheywillbealigned
properly when reinstalling hydraulic hoses and tubes.
After Repair or Replacement of Components
1. Check oil level in the transaxle and add correct oil if
necessary.Drainandrefilltransaxleandchangeoilfilter
if component failure was severe or system is contami-
nated (see Flush Hydraulic System in this section).
2. Lubricate O--rings and seals with clean hydraulic oil
before installing hydraulic components.
3. Make sure caps or plugs are removed from the hy-
draulic tubes, hydraulic fittings and components before
reconnecting.
4. Use proper tightening methods when installing hy-
draulichosesand fittings (see HydraulicFittingInstalla-
tion and Hydraulic Hose and Tube Installation in the
General Information section of this chapter).
5. After disconnecting or replacing any hydraulic com-
ponents, operate machine functions slowly until air is
outofsystem(seeHydraulicSystemStartUpinthissec-
tion).
6. Checkforhydraulicoilleaks.Shutoffengineandcor-
rect leaks if necessary. C heck oil level in transaxle and
add correct oil if necessary.
Check Hydraulic Lines and Hoses
WARNING
Keep body and hands away from pin hole leaks
or nozzles that eject hydraulic fluid under high
pressure. Use paper or cardboard, not hands, to
search for leaks. Hydraulic fluid escaping under
pressure can have sufficient force to penetrate
the skin and cause serious injury. If fluid is in-
jected into the skin, it must be surgically re-
moved within a few hours by a doctor familiar
withthistypeofinjury.Gangrenemayresultfrom
such an injury.
Check hydraulic lines and hoses daily for leaks, kinked
lines, loose mounting supports, wear, loose fittings or
deterioration.Makeallnecessaryrepairsbeforeoperat-
ing machine.
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