Toro ProPass 200 Service Manual page 22

Hydraulic Hose and Tube Installation (JIC Flared Fittings)
NOTE: ProPass machines with serial numbers below
310001000 use JIC flared fittings (Fig. 10). Use the fol-
lowing information when installing hydraulic hoses and
tubes to JIC flared fittings.
1. Make sure threads and sealing surfaces of the hose/
tube and the fitting are free of burrs, nicks, scratches or
any foreign material.
2. Thread hose/tube swivel nut onto fitting by hand.
While holding the hose/tube with a wrench, use a torque
wrench to tighten swivel nut to the recommended instal-
lation torque shown in Figure 12. If fitting is non--ferrous
material (e.g. brass), use 50% of listed torque values.
This tightening process will require the use of an offset
wrench (e.g. crowfoot wrench) that will affect torque
wrench calibration due to the effective length change of
the torque wrench. Tightening torque when using a
torque wrench with an offset wrench will be lower than
the listed installation torque (see Using a Torque
Wrench with an Offset Wrench in the Torque Specifica-
tions section of Chapter 2 -- Product Records and Main-
tenance).
3. If a torque wrench is not available or if space at the
swivel nut prevents use of a torque wrench, an alternate
method of assembly is the Flats From Wrench Resist-
ance (F.F.W.R.) method (Fig. 11).
A. Using a wrench, tighten the swivel nut onto the fit-
ting until light wrench resistance is reached (approxi-
mately 30 in--lb).
B. Mark the swivel nut and fitting body. Hold the
hose/tube with a wrench to prevent it from turning.
C. Use a second wrench to tighten the nut to the cor-
rect Flats From Wrench Resistance (F.F.W.R.). The
markings on the nut and fitting body will verify that the
connection has been properly tightened.
Fitting Dash Size
4
6
8
10
12
14
16
Hydraulic System
Hose/Tube Side Thread Size
7/16 -- 20
9/16 -- 18
3/4 -- 16
7/8 -- 14
1 1/16 -- 12
1 3/16 -- 12
1 5/16 -- 12
Figure 12
Page 3 - - 8
Size
4 (1/4 in. nominal hose or tubing)
6 (3/8 in.)
8 (1/2 in.)
10 (5/8 in.)
12 (3/4 in.)
16 (1 in.)
(ADJUSTABLE TYPE SHOWN)
Figure 10
Mark Nut
and Fitting
Position
Body
Extend Line
AT WRENCH RESISTANCE
Figure 11
Installation Torque
10 to 14 ft--lb (14 to 18 N--m)
15 to 21 ft--lb (21 to 28 N--m)
33 to 41 ft--lb (45 to 55 N--m)
43 to 53 ft--lb (59 to 71 N--m)
66 to 82 ft--lb (90 to 111 N--m)
80 to 98 ft--lb (109 to 132 N--m)
90 to 110 ft--lb (122 to 149 N--m)
F.F.W.R.
1/2 to 3/4
1/2 to 3/4
1/2 to 3/4
1/2 to 3/4
1/3 to 1/2
1/3 to 1/2
JIC FLARED FITTING
Final
Initial
Position
AFTER TIGHTENING
ProPass 200