Flush Hydraulic System
IMPORTANT: Flush the hydraulic system any time
there is a severe component failure or the system is
contaminated (oil appears milky or black or con-
tains metal particles).
10. Start engine and let it idle at low speed for a mini-
mum of two (2) minutes. Increase engine speed to high
idle for minimum of one (1) minute under no load.
11.
Raise and lower cutting units several times.
IMPORTANT: Flush hydraulic system when chang-
Ing from petroleum base hydraulic fluid. Operate
machine under normal operating conditions for at
least four (4) hours before draining.
12.
Check oil level in hydraulic reservoir and add correct oil
if necessary.
Shut off engine and check for hydraulic oil leaks.
13.
operating conditions.
Operatethemachinefortwo(2)hoursundernormal
1.
units, stop engine, and engage parking.
Park machine on a level surface. Lower cutting
14.
showsanysignsofcontamination,orifyouarechanging
to biodegradable fluid, repeat steps 1 through 14 again.
Check condition of hydraulic oil. If the flushing fluid
CAUTION
15.
mended maintenance intervals.
Assume normal operation and follow recom-
Before continuing further, read and become fa-
miliar with General Precautions for Removing
and Installing Hydraulic System Components.
2.
Clean area around hydrostat and pump inlet hose.
Clamp pump inlet hose. Remove hose from hydrostat,
release clamp, and drain reservoir into a suitable con-
tainer. Drain hydraulic system while making sure lift cyl-
inders, hoses, tube lines, and all other components are
drained from low points while the system is warm. Dis-
card filter (Fig. 41).
PUMP INLET HOSE
3.
drain into a suitable container. Discard filter (Fig. 42).
Clean oil filter mounting area. Remove filter and
4.
Inspect and clean reservoir (see Inspecting Reser-
voir Parts).
5.
Makesurefiltermountingsurfaceisclean.Applyhy-
Figure 41
draulic oil to gasket on the new filter. Screw filter on until
gasket contacts mounting plate, then tighten filter half a
turn.
Note:
Use only hydraulic fluids (including biodegrad-
able) specified in Checking Hydraulic System Fluid in
General section. Other fluids could cause system dam-
age.
6.
disconnected prior to draining. Fill hydraulic reservoir.
Reconnect all hydraulic hoses and lines that were
7.
lenoid to prevent engine from starting on diesel engine.
Disconnect electrical connector to the fuel stop so-
HYDRAULIC OIL FILTER
Figure 42
8.
seconds to the prime pump. Allow the starter to cool and
repeat this step again.
Turn ignition key switch; engage starter for ten (10)
9.
Connect electrical connector to the fuel stop sole-
noid on diesel engine.
Greensmaster 3250--D
Page 4 -- 71
Hydraulic System (Rev. I)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro Greensmaster 3250 D |
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| Language | English |
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