3. Using a wrench, tighten the nut the amount shown
in the chart below. The line will show which fittings
have been tightened correctly and also indicates if
a fitting is becoming loose.
37° Flare Torque Recommendations
Special Hose Installation Instructions
1. Hold the fixed portion of the hose coupling with
one wrench; use a second wrench to tighten or
loosen the hose nut. This will avoid damaging the
fitting seal. When tightening a hose, do not permit
it to twist; hold it in a normal straight position.
2. When installing mower hoses, place fittings at
angles to avoid contact with fixed parts when turn-
ing. Make sure hoses are assembled to proper “A”
and “B” ports on components.
O-RING BOSS FITTINGS
On hoses with O-ring fittings, make sure O-rings are
clean and hose fittings are properly seated before
tightening. Always install new O-rings. See Figure 8C-2.
Replacement O-rings for O-Ring Boss Fittings
NOTE
O-rings should be lubricated with the fluid to be
used in the system prior to assembly.
HYDRAULICS
SECTION 8C. GENERAL INSTRUCTIONS
8C-2
FIgure 8C-1. Reference Marking
SAE
Dash
Thread
Tube
Torque
# of Flat
Size
Size
O.D.
In-Lbs.
Rotations
3
3
⁄
8
-24
0.188
95-105
1
1
⁄
2
:1
3
⁄
4
4
7
⁄
16
-20
0.250
135-145
2
1
⁄
4
:2
3
⁄
4
5
1
⁄
2
-20
0.312
170-190
3
1
⁄
4
:3
3
⁄
4
6
9
⁄
16
-18
0.375
215-245
2
1
⁄
4
:2
3
⁄
4
8
3
⁄
4
-16
0.500
430-470
2
1
⁄
4
:2
3
⁄
4
10
7
⁄
8
-14
0.625
680-750
2:2
1
⁄
2
12
1
1
⁄
16
-12
0.750
950-1050
2:2
1
⁄
2
14
1
3
⁄
8
-12
0.875
1000-1100
1:1
1
⁄
2
16
1
5
⁄
16
-12
1.000
1300-1360
2
1
⁄
4
:2
3
⁄
4
20
1
5
⁄
8
-12
1.250
1520-1600
1
1
⁄
4
:1
3
⁄
4
24
1
7
⁄
8
-12
1.500
1900-2000
3
⁄
4
:1
1
⁄
4
Tube O.D. or Hose I.D.
Rotate No. of Hex Flats
3/8"
2
1/2"
2
5/8"
1
1
⁄
2
–2
1"
3
⁄
4
–1
Figure 8C-2. Boss Fitting O-Ring Installation
A
B
O-Ring
Tubing O.D.
Thread
Jacobsen
or Hose I.D.
Size
Part No.
1
⁄
8
5
⁄
16
-24
459290
3
⁄
16
3
⁄
8
-24
459291
1
⁄
4
7
⁄
16
-20
339896
5
⁄
16
1
⁄
2
-20
459293
3
⁄
8
9
⁄
16
-18
339897
1
⁄
2
3
⁄
4
-16
339898
5
⁄
8
7
⁄
8
-14
339899
3
⁄
4
1
1
⁄
16
-12
339900
7
⁄
8
1
3
⁄
16
-12
459296
1
1
5
⁄
16
-12
339901
1
1
⁄
4
1
5
⁄
8
-12
339902
1
1
⁄
2
1
7
⁄
8
-12
339903
2
2
1
⁄
2
-12
459300
Содержание HR 5111
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Страница 49: ...GENERAL See Figure 4E 1 DRIVE TRAIN SECTION 4E AXLE 4E 1 4E Figure 4E 1 Axle Assembly...
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Страница 94: ...STEERING SECTION 6E STEERING CYLINDER 6E 4 Figure 6E 4 Steering Cylinder Assembly...
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Страница 108: ...HYDRAULICS SECTION 8A REPAIR AND SERVICE TOOLS AND MATERIALS 8A 2 Figure 8A 1 Wheel Restraint...
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Страница 132: ...HYDRAULICS SECTION 8H LIFT AND LOWER CONTROL VALVE 8H 4 Figure 8H 7 Detent and Lockout Reassembly...
Страница 135: ...HYDRAULICS SECTION 8I TRACTION MOTOR 8I 3 8I Figure 8I 4 Drive Shaft Reassembly Figure 8I 5 Traction Motor Reassembly...
Страница 136: ......
Страница 137: ...REPAIR HYDRAULICS SECTION 8J REAR TRACTION MOTOR 8J 1 8J Figure 8J 1 Rear Traction Motor...
Страница 138: ...HYDRAULICS SECTION 8J REAR TRACTION MOTOR 8J 2 Figure 8J 2 Seal Assembly...
Страница 139: ...HYDRAULICS SECTION 8J REAR TRACTION MOTOR 8J 3 8J Figure 8J 3 O Rings and Seals...
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Страница 145: ...HYDRAULICS SECTION 8L LIFT CYLINDER 8L 3 8L Figure 8L 3 Lift Cylinder Assembly...
Страница 148: ...HYDRAULICS SECTION 8L LIFT CYLINDER 8L 6 Figure 8L 6 Wing Cylinder Assembly...
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Страница 160: ...HYDRAULICS SECTION 8Q HYDRAULIC FIELD TEST PROCEDURES 8Q 4...
Страница 163: ...HYDRAULICS SECTION 8Q HYDRAULIC FIELD TEST PROCEDURES 8Q 7 Figure 8Q 5 Reel System 8Q...
Страница 185: ...HYDRAULICS SECTION 8R INSTRUMENT TEST 8R 21 8R Figure 8R 19 Left Wing Motor Circuit Tests...
Страница 186: ...HYDRAULICS SECTION 8R INSTRUMENT TEST 8R 22 THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 191: ...HYDRAULICS 8S 1 8S Figure 8S 1 Flow Diagram...
Страница 192: ...HYDRAULICS 8S 3 Figure 8S 2 Schematic Early...
Страница 193: ...HYDRAULICS 8S 5 8S Figure 8S 3 Schematic Later...
Страница 202: ...HYDRAULICS 8S 7 Figure 8S 4 Traction System 1 of 4...
Страница 203: ...HYDRAULICS 8S 9 8S Figure 8S 5 Power Steering System 2 of 4...
Страница 204: ...HYDRAULICS 8S 11 Figure 8S 6 Lift System 3 of 4...
Страница 205: ...HYDRAULICS 8S 13 8S Figure 8S 7 Mower System 4 of 4...
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Страница 249: ...ELECTRICAL SYSTEM SECTION 10G SWITCHES 10G 5 10G Figure 10G 5 Ignition Switch Test Step 4...
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Страница 323: ...ATTACHMENTS SECTION 12D MOWERS 12D 5 12D Figure 12D 5 Motor Rotation By Code Letter...
Страница 328: ...ATTACHMENTS SECTION 12F CASTER WHEELS 12F 2 Figure 12F 2 Caster Wheel Repair...
Страница 329: ...13 THIS SECTION INTENTIONALLY LEFT BLANK SECTION 13 OPTIONS...
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Страница 335: ...MISCELLANEOUS SECTION 14A PRECAUTION DECAL LOCATIONS 14A 3 14A MOWER Part No J T338141 1...
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Страница 337: ...MISCELLANEOUS SECTION 14B CONVERSION CHARTS 14B 1 14B MILLIMETERS TO DECIMALS...
Страница 338: ...MISCELLANEOUS SECTION 14B CONVERSION CHARTS 14B 2 DECIMALS TO MILLIMETERS FRACTIONS TO DECIMALS TO MILLIMETERS...