Toro Groundsmaster 360 Service Manual page 68

Installing the Non-Adjustable Fittings (continued)
Fitting Installation Torque Table
Fitting Dash Size Fitting Port Side Thread
Size (inch(es)—threads
4
5
6
8
10
12
14
16
20
Hydraulic System: General Information
1. Ensure that all the threads, the sealing surfaces of fitting, and the component
port are free of burrs, nicks, scratches, or unwanted material.
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.
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.
4. Install the fitting into the port, then use a torque wrench and socket to tighten
the fitting to the recommended torque value within the specified range of
torque values; refer to the
Note: It may be necessary to use a drive-adapter wrench (e.g., crowfoot
wrench) to install a hydraulic fitting; refer to
When Using a Drive-Adapter Wrench (page
5. If a torque wrench is not available or if space at the port prevents the use
of a torque wrench, use the alternative procedure
Table (page 4–10)
A. Install the fitting into the port and tighten the fitting down full length until
finger-tight.
B. If the port material is steel, tighten the fitting to the listed FFFT. If the port
material is aluminum, tighten the fitting to 60% of the listed FFFT.
Installation Torque Into Steel Port
per inch)
7/16—20 21 to 25 N∙m (15 to 19 ft-lb)
1/2—20 25 to 29 N∙m (18 to 22 ft-lb)
9/16—18 47 to 56 N∙m (34 to 42 ft-lb)
3/4—16 79 to 97 N∙m (58 to 72 ft-lb)
7/8—14 135 to 164 N∙m (99 to 121 ft-lb)
1–1/16—12 182 to 222 N∙m (134 to 164 ft-lb)
1–3/16—12 217 to 265 N∙m (160 to 196 ft-lb)
1–5/16—12 274 to 336 N∙m (202 to 248 ft-lb)
1–5/8—12 335 to 410 N∙m (247 to 303 ft-lb)
Flat From Finger Tight Table
Size
4 (1/4 inch nominal hose or tubing)
6 (3/8 inch)
8 (1/2 inch)
10 (5/8 inch)
IMPORTANT
Fitting Installation Torque Table (page
given below;
Page 4–10
4–10).
Calculating the Torque Values
2–5).
Flat From Finger Tight
Installation Torque Into
Aluminum Port
13 to 15 N∙m (9 to 11 ft-lb)
15 to 20 N∙m (11 to 15 ft-lb)
28 to 35 N∙m (20 to 26 ft-lb)
48 to 58 N∙m (35 to 43 ft-lb)
82 to 100 N∙m (60 to 74 ft-lb)
110 to 134 N∙m (81 to 99 ft-lb)
131 to 160 N∙m (96 to 118 ft-lb)
165 to 202 N∙m (121 to 149 ft-lb)
202 to 248 N∙m (149 to 183 ft-lb)
FFFT
1.00 ± 0.25
1.50 ± 0.25
1.50 ± 0.25
1.50 ± 0.25
Groundsmaster 360
16225SL Rev C