General Information; General Information; Hydraulic Hoses; Hydraulic Fitting Installation - Toro Greensmaster 3150 Service Manual

General Information

Hydraulic Hoses

Hydraulic hoses are subject to extreme conditions such
as pressure differentials during operation and exposure
to weather, sun, chemicals, very warm storage condi-
tions, or mishandling during operation or maintenance.
These conditions can cause damage or premature dete-
rioration. Some hoses are more susceptible to these
conditions than others. Inspect the hoses frequently for
signs of deterioration or damage.
When replacing a hydraulic hose, be sure that the hose
is straight (not twisted) before tightening the fittings.
This can be done by observing the imprint on the hose.
Use two wrenches; hold the hose straight with one and
tighten the hose swivel nut onto the fitting with the other.

Hydraulic Fitting Installation

O–Ring Face Seal
1. Make sure both threads and sealing surfaces are
free of burrs, nicks, scratches, or any foreign material.
2. Make sure the O–ring is installed and properly
seated in the groove. It is recommended that the O–ring
be replaced any time the connection is opened.
3. Lubricate the O–ring with a light coating of oil.
4. Put the tube and nut squarely into position on the
face seal end of the fitting and tighten the nut until finger
tight.
5. Mark the nut and fitting body. Hold the body with a
wrench. Use another wrench to tighten the nut to the cor-
rect flats from finger tight (F.F.F.T.). The markings on the
nut and fitting body will verify that the connection has
been tightened.
Size
4 (1/4 in. nominal hose or tubing)
6 (3/8 in.)
8 (1/2 in.)
10 (5/8 in.)
12 (3/4 in.)
16 (1 in.)
Hydraulic System
Before disconnecting or performing any work on
the hydraulic system, all pressure in the system
must be relieved by stopping the engine and low-
ering or supporting the reels and/or other attach-
ments.
Keep body and hands away from pin hole leaks or
nozzles that eject hydraulic fluid under high pres-
sure. 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 removed
within a few hours by a doctor familiar with this
type of injury. Gangrene may result from such an
injury.
F.F.F.T.
.75 + .25
.75 + .25
.75 + .25
Finger Tight
1.00 + .25
.75 + .25
.75 + .25
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WARNING
Nut
Sleeve
Figure 1
Final
Position
Mark Nut
and Body
Extend Line
After Proper Tightening
Figure 2
Body
Seal
Initial
Position
Greensmaster 3150