Toro Groundsmaster 7210, Service Manual

Page: 69 / 342

Installing an Adjustable Fitting (continued)
2. To help prevent a hydraulic leak, replace the O-ring when you open the
connection.
3. Lightly lubricate the O-ring with clean hydraulic fluid. Ensure that the threads
of the fitting are clean with no lubricant applied.
4. Turn back the locknut as far as possible. Ensure that the back-up washer is
not loose and it is pushed up as far as possible (Step 1 in Figure 25 ).
IMPORTANT
Before installing the fitting into the port, determine the material of
which the port is made. Installing a fitting into an aluminum port
requires a reduced installation torque.
5. Install the adjustable fitting into the port by hand until the washer contacts the
face of the port (Step 2 in Figure 25 ).
6. If the adjustable fitting needs to align with another component, rotate the fitting
counterclockwise until it is aligned to the desired position (Step 3 in Figure
25 ). Do not rotate the adjustable fitting more than 1 turn counterclockwise.
7. Hold the fitting in the correct alignment with a wrench and use a torque
wrench and tighten the fitting to the recommended torque value within the
specified range of torque values; refer to the
Fitting Installation Torque Table
(page 4–7) . This tightening procedure requires a drive-adapter wrench (e.g.,
crowfoot wrench).
Note: It may be necessary to use a drive-adapter wrench (e.g., crowfoot
wrench) to install a hydraulic fitting; refer to Calculating the Torque Values
When Using a Drive-Adapter Wrench (page 2–5) .
8. If a torque wrench is not available or if space at the port prevents the use
of a torque wrench, use the alternative procedure Flat From Finger Tight
Table (page 4–9) given below;
A. Hold the fitting in the correct alignment with a wrench and, if the port
material is steel, tighten the locknut with a second wrench to the listed
FFFT (Step 4 in
Figure 25 ).
B. If the port material is aluminum, tighten the fitting to 60% of the listed
FFFT; refer to the Flat From Finger Tight Table (page 4–9) .
Flat From Finger Tight Table
Size FFFT
4 (1/4 inch nominal hose or tubing) 1.00 ± 0.25
6 (3/8 inch) 1.50 ± 0.25
8 (1/2 inch) 1.50 ± 0.25
10 (5/8 inch) 1.50 ± 0.25
12 (3/4 inch) 1.50 ± 0.25
16 (1 inch)
1.50 ± 0.25
Traction Unit Operator's Manual
The Traction Unit Operator's Manual provides information regarding the
operation, general maintenance procedures, and maintenance intervals for your
machine. Refer to the
Traction Unit Operator's Manual for additional information
when servicing the machine.
Groundsmaster 7210 Page 4–9 Hydraulic System: General Information
16222SL Rev C