caution - Toro
caution - Toro
caution - Toro
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Adjustable Fitting (Fig. 8)<br />
1. Make sure all threads and sealing surfaces of fitting<br />
and component port are free of burrs, nicks, scratches<br />
or any foreign material.<br />
2. As a preventative measure against leakage, it is recommended<br />
that the O--ring be replaced any time the<br />
connection is opened.<br />
3. Lightly lubricate the O--ring with clean hydraulic oil.<br />
Fitting threads should be clean with no lubricant applied.<br />
4. Turn back the lock nut as far as possible. Make sure<br />
the back up washer is not loose and is pushed up as far<br />
as possible (Step 1 in Figure 9).<br />
IMPORTANT: Before installing fitting into port, determine<br />
port material. If fitting is to be installed into<br />
an aluminum port, installation torque is reduced.<br />
5. Install the fitting into the port and tighten finger tight<br />
until the washer contacts the face of the port (Step 2).<br />
6. To put the fitting in the desired position, unscrew it by<br />
the required amount, but no more than one full turn<br />
(Step 3).<br />
7. Hold the fitting in the desired position with a wrench<br />
and use a torque wrench to tighten the fitting to the recommended<br />
installation torque shown in Figure 7. This<br />
tightening process will require the use of an offset<br />
wrench (e.g. crowfoot wrench). Use of an offset wrench<br />
will affect torque wrench calibration due to the effective<br />
length change of the torque wrench. Tightening torque<br />
when using a torque wrench with an offset wrench will<br />
be lower than the listed installation torque (see Using a<br />
Torque Wrench with an Offset Wrench in the Torque<br />
Specifications section of Chapter 2 -- Product Records<br />
and Maintenance).<br />
8. If a torque wrench is not available, or if space at the<br />
port prevents use of a torque wrench, an alternate method<br />
of assembly is the Flats From Finger Tight (F.F.F.T.)<br />
method. Hold the fitting in the desired position with a<br />
wrench and, if port material is steel, tighten the lock nut<br />
with a second wrench to the listed F.F.F.T (Step 4). If port<br />
material is aluminum, tighten fitting to 60% of listed<br />
F.F.F.T.<br />
Figure 8<br />
Step 1<br />
Step 3<br />
Step 2 Step 4<br />
Figure 9<br />
Lock Nut<br />
Back -up Washer<br />
O-ring<br />
Hydraulic<br />
System<br />
Size<br />
F.F.F.T.<br />
4 (1/4 in. nominal hose or tubing) 1.00 + 0.25<br />
6(3/8in.) 1.50+0.25<br />
8(1/2in.) 1.50+0.25<br />
10 (5/8 in.) 1.50 + 0.25<br />
12 (3/4 in.) 1.50 + 0.25<br />
16 (1 in.) 1.50 + 0.25<br />
Groundsmaster 4100--D<br />
Page 4 - 7<br />
Hydraulic System