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.
Theseconditionscancausedamageorprematuredete-
rioration. Some hoses are more susceptible to these
conditions than others. Inspect the hoses frequently for
signs of deterioration or damage.
WARNING
Before disconnecting or performing any work
on hydraulic system, relieve all pressure in
system (see Relieving Hydraulic System Pres-
sure). Stop engine; lower or support cutting
units and/or other attachment(s).
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 in position with one
wrench and tighten the hose swivel nut onto the fitting
with the second wrench.
Keepbodyandhandsawayfrompinholeleaks
or nozzles that eject hydraulic fluid under high
pressure. 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 injected into the skin, it must be surgi-
cally removed within a few hours by a doctor
familiar with this type of injury. Gangrene may
result from such an injury.
Hydraulic Fitting Installation
O--Ring Face Seal
Nut
Body
1.
free of burrs, nicks, scratches or any foreign material.
Make sure both threads and sealing surfaces are
Sleeve
2.
in the groove. It is recommended that the o--ring be re-
placed any time the connection is opened.
Makesuretheo--ringisinstalledandproperlyseated
Seal
3.
Lubricate the o--ring with a light coating of oil.
4.
face seal end of the fitting and tighten the nut until finger
tight.
Put the tube and nut squarely into position on the
Figure 1
5.
Mark the nut and fitting body. Hold the body with a
wrench. Use a second wrench to tighten the nut to the
correct Flats From Finger Tight (F.F.F.T.). The markings
on the nut and fitting body will verify that the connection
has been tightened.
Final
Position
Mark Nut
and Body
Size
F.F.F.T.
Initial
4
6
8
10
12
16
(1/4 in. nominal hose or tubing)
(3/8 in.)
(1/2 in.)
(5/8 in.)
(3/4 in.)
(1 in.)
0.75 + 0.25
0.75 + 0.25
0.75 + 0.25
1.00 + 0.25
0.75 + 0.25
0.75 + 0.25
Extend Line
Position
Finger Tight
After Proper Tightening
Figure 2
Groundsmaster 3505--D
Page 4 -- 3
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 3505 D |
| Download File |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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