Flush Hydraulic System - Toro Multi Pro 5700-D Service Manual

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. Clean area 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 a half turn further.
6. Reinstall all hoses and hydraulic components.
NOTE: Use only hydraulic fluids specified in Operator's
Manual. Other fluids could cause system damage.
7. Fill hydraulic oil reservoir (see Operator's Manual).
Hydraulic System
8. Disconnect and ground spark plug wires to prevent
engine from starting.
9. Turn ignition key switch to start; engage starter for
ten (10) seconds to prime hydraulic pump. Repeat this
step again.
10.Reconnect spark plug wires.
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 of hydraulic oil. If the fluid shows any
signs of contamination repeat steps 1 through 12 again.
17.Resume normal operation and follow recommended
maintenance intervals.
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