SAE Straight Thread O--Ring Port -- Non--adjustable
Make sure both threads and sealing surfaces are
1.
free of burrs, nicks, scratches, or any foreign material.
2.
Always replace the O--ring seal when this type of fit-
ting shows signs of leakage.
3.
4.
Lubricate the O--ring with a light coating of oil.
O--Ring
Install the fitting into the port and tighten it down full
length until finger tight.
Figure 3
5.
Tighten the fitting to the correct Flats From Finger
Tight (F.F.F.T.).
Fitting Size
Installation Torque
9--10 ft--lb (12--13 N--m)
20--21 ft--lb (27--28 N--m)
35--37 ft--lb (47--50 N--m)
60--66 ft--lb (81--89 N--m)
81--87 ft--lb (110--117 N--m)
121--131 ft--lb (164--177 N--m)
4
6
Size
F.F.F.T.
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.)
1.00 + 0.25
1.50 + 0.25
1.50 + 0.25
1.50 + 0.25
1.50 + 0.25
1.50 + 0.25
8
10
12
16
NOTE: Installationtorquevaluesfornon--adjustablefit-
tings are listed in Figure 4. These torque values should
only be used when a fitting can be accessed with a
socket. Use of an offset wrench (e.g. crowfoot wrench)
will affect torque wrench accuracy and should not be
used.
Figure 4
SAE Straight Thread O--Ring Port -- Adjustable
1.
free of burrs, nicks, scratches, or any foreign material.
Make sure both threads and sealing surfaces are
2.
Always replace the O--ring seal when this type of fit-
ting shows signs of leakage.
Lock Nut
3.
4.
the back up washer is not loose and is pushed up as far
as possible (Step 1).
Lubricate the O--ring with a light coating of oil.
Turn back the jam nut as far as possible. Make sure
Back--up Washer
O--Ring
Figure 5
5.
Install the fitting into the port and tighten finger tight
until the washer contacts the face of the port (Step 2).
6.
the required amount, but no more than one full turn
(Step 3).
To put the fitting in the desired position, unscrew it by
Step 1
Step 2
Step 3
Step 4
7.
and turn the jam nut with another wrench to the correct
Flats From Finger Tight (F.F.F.T.) (Step 4).
Hold the fitting in the desired position with a wrench
Size
F.F.F.T.
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.)
1.00 + 0.25
1.50 + 0.25
1.50 + 0.25
1.50 + 0.25
1.50 + 0.25
1.50 + 0.25
Figure 6
Hydraulic System (Rev. A)
Page 4 -- 4
Groundsmaster 4500--D/4700--D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
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| Document Type | Service Manual |
| Language | English |
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