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Rev. D
Multi Pro 5700--DHydraulic System Page 4 -- 28
Flush Hydraulic System
IMPORTANT: Flush the hydraulic system any time
there is a severe component failure or the system is
contaminated. Contaminated oil appears milky,
black, or contains metal particles.
1. Make sure hydraulic oil warm by operating the ma-
chine for several minutes. Park machine on a level sur-
face. Stop engine,apply parking brake, and remove key
from ignition switch.
2. Cleanarea around hydraulic filter mounting area and
remove filter (see Operator’s Manual). Drain filter into a
suitable container. Properly dispose removed filter.
3. Drain hydraulic reservoir into a suitable container
(see Operator’s Manual).
4. Drain hydraulic system. Drain all hoses and compo-
nents while the system is warm.
5. Make sure filter mounting surface is clean. Apply
clean hydraulic oil to gasket on new filter. Screw filter
onto filter head until gasket contacts mounting surface,
then tighten filter 3/4 turn further.
6. Reinstall all hoses and hydraulic components.
NOTE: Useonly hydraulic fluidsspecified in Operator’s
Manual. Other fluids could cause system damage.
7. Fill hydraulic oil reservoir (see Operator ’s Manual).
8. Disconnect wire harness electrical connector from
the engine fuel stop solenoid to prevent the engine from
starting.
9. Make sure traction pedal is in neutral.. Turn ignition
key switch to start; engage starter for ten (10) seconds
to prime hydraulic pumps. Wait fifteen (15) seconds to
allow the starter motor to cool and then repeat cranking
procedure again.
10.Connect wire harness electrical connector to fuel
stop solenoid to allow engine to start.
11.Start engine and run at low idle speed (1200 -- 1250
RPM) for a minimum of two (2) minutes.
12.Increase engine speed to high idle (3050 -- 3150
RPM) for minimum of one (1) minute under no load.
13.Turn steering wheel in both directions several times.
14.Shut off engine and check for hydraulic oil leaks.
Check oil level in hydraulic reservoir and add correct oil
if necessary.
15.Operate the machine for two (2) hours under normal
operating conditions.
16.Check condition ofhydraulic oil. Ifthe fluid showsany
signs of contamination repeat steps 1 through 12 again.
17.Resume normal operation and follow recommended
maintenance intervals.