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).
9. Connect both engine spark plug wires to the spark
plugs.
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 a minimum of one (1) minute under no load.
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.
11.
12.
Raise and lower cutting units several times.
Shut off engine and check for hydraulic oil leaks.
Check oil level in hydraulic reservoir and add correct oil
if necessary.
1.
units, stop engine, and engage parking brake.
Park machine on a level surface. Lower cutting
13.
Operatethemachinefortwo(2)hoursundernormal
operating conditions.
CAUTION
14.
Check condition of hydraulic oil. If the flushing fluid
showsanysignsofcontamination,orifyouarechanging
to biodegradable fluid, repeat steps 1 through 14 again.
Before continuing further, read and become fa-
miliar with General Precautions for Removing
and Installing Hydraulic System Components.
15.
Assume normal operation and follow recom-
mended maintenance intervals.
2.
Clean area around hydrostat and pump inlet hose.
Clamppumpinlethose.Removeinlethosefromhydros-
tat, release clamp, and drain reservoir into a suitable
container. Drain hydraulic system while making sure lift
cylinders, hoses, tube lines, and all other components
are drained from low points while the system is warm.
Discard filter (Fig. 39).
PUMP INLET HOSE
3.
Clean oil filter mounting area. Remove filter and
drain into a suitable container. Discard filter (Fig. 40).
4.
Inspect and clean reservoir (see Inspecting Reser-
voir Parts).
5.
Makesurefiltermountingsurfaceisclean.Applyhy-
Figure 39
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 the Traction Unit Operator’s Manual.
Other fluids could cause system damage.
6.
disconnected prior to draining. Fill hydraulic reservoir.
Reconnect all hydraulic hoses and lines that were
7.
Disconnect both engine spark plug wires from the
spark plugs.
8.
(10)
tooffandwaitoneminutetoallowstartertocool.Repeat
step a second time.
Turn ignition key switch and engage starter for ten
seconds to the prime pump. Return ignition switch
HYDRAULIC OIL FILTER
Figure 40
Greensmaster 3150
Page 4 -- 65
Hydraulic System (Rev. E)
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| Language | English |
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